Merge branch 'main' into sqlite3_sink

.github/workflows/runonce.yml

@@ -0,0 +1,17 @@
+name: Run Test
+on: push
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Setup Golang
+      uses: actions/setup-go@v2.1.4
+
+    - name: Build MetricCollector
+      run: make
+
+    - name: Run MetricCollector
+      run: make runonce

Makefile

@@ -0,0 +1,16 @@
+APP = cc-metric-collector
+
+all: $(APP)
+
+$(APP): metric-collector.go
+	make -C collectors
+	go build -o $(APP) metric-collector.go
+
+runonce: $(APP)
+	./$(APP) --once
+
+fmt:
+	go fmt collectors/*.go
+	go fmt sinks/*.go
+	go fmt receivers/*.go
+	go fmt metric-collector.go

README.md

@@ -1,27 +1,13 @@
 # cc-metric-collector
-A node agent for measuring, processing and forwarding node level metrics.
+A node agent for measuring, processing and forwarding node level metrics part of the ClusterCockpit ecosystem.
-
-Open questions:
-
-* Are hostname unique with a computing center or is it required to store the cluster name in addition to the hostname?
-* What about memory domain granularity?
 
 # Configuration
 
 Configuration is implemented using a single json document that is distributed over network and may be persisted as file.
-Supported metrics are documented [here](https://github.com/ClusterCockpit/cc-specifications/blob/master/metrics/lineprotocol.md).
+Supported metrics are documented [here](https://github.com/ClusterCockpit/cc-specifications/blob/master/metrics/lineprotocol_alternative.md).
 
 ``` json
 {
-    "sink": {
-        "user": "admin",
-        "password": "12345",
-        "host": "localhost",
-        "port": "8080",
-        "database": "testdb",
-        "organisation": "testorg",
-        "type": "stdout"
-    },
     "interval" : 3,
     "duration" : 1,
     "collectors": [
@@ -34,17 +20,37 @@ Supported metrics are documented [here](https://github.com/ClusterCockpit/cc-spe
         "topprocs",
         "cpustat",
         "nvidia"
-    ]
+    ],
+    "sink": {
+        "user": "admin",
+        "password": "12345",
+        "host": "localhost",
+        "port": "8080",
+        "database": "testdb",
+        "organisation": "testorg",
+        "type": "stdout"
+    },
+    "default_tags": {
+        "cluster": "testcluster"
+    },
     "receiver": {
-        "type": "none"
+        "type": "none",
         "address": "127.0.0.1",
         "port": "4222",
-        "database": "testdb",
+        "database": "testdb"
     }
 }
 ```
 
-All available collectors are listed in the above JSON. There are currently three sinks supported `influxdb`, `nats` and `stdout`. The `interval` defines how often the metrics should be read and send to the sink. The `duration` tells collectors how long one measurement has to take. An example for this is the `likwid` collector which starts the hardware performance counter, waits for `duration` seconds and stops the counters again. For most systems, the `likwid` collector has to do two measurements, thus `interval` must be larger than two times `duration`. With `receiver`, the collector can be used as a router by receiving metrics and forwarding them to the configured sink. There are currently only types `none` (for no receiver) and `nats`.
+The `interval` defines how often the metrics should be read and send to the sink. The `duration` tells collectors how long one measurement has to take. An example for this is the `likwid` collector which starts the hardware performance counter, waits for `duration` seconds and stops the counters again. For most systems, the `likwid` collector has to do two measurements, thus `interval` must be larger than two times `duration`.
+
+All available collectors are listed in the above JSON. A more detailed list can be found in the [README for collectors](./collectors/README.md).
+
+There are currently four sinks supported `influxdb`, `nats`, `http` and `stdout`. See [README for sinks](./sinks/README.md).
+
+In the `default_tags` section, one can define key-value-pairs (only strings) that are added to each sent out metric. This can be useful for cluster names like in the example JSON or information like rank or island for orientation.
+
+With `receiver`, the collector can be used as a router by receiving metrics and forwarding them to the configured sink. There are currently only types `none` (for no receiver) and `nats`. For more information see the [README in receivers](./receivers/README.md).
 
 # Installation
 
@@ -52,7 +58,7 @@ All available collectors are listed in the above JSON. There are currently three
 $ git clone git@github.com:ClusterCockpit/cc-metric-collector.git
 $ cd cc-metric-collector/collectors
 $ edit Makefile (for LIKWID collector)
-$ make (downloads LIKWID, builds it as static library and copies all required files for the collector)
+$ make (downloads LIKWID, builds it as static library and copies all required files for the collector. Uses sudo in case of own accessdaemon)
 $ cd ..
 $ go get (requires at least golang 1.13)
 $ go build metric-collector
@@ -72,6 +78,12 @@ Usage of metric-collector:
 # Internals
 The metric collector sends (and receives) metric in the [InfluxDB line protocol](https://docs.influxdata.com/influxdb/cloud/reference/syntax/line-protocol/) as it provides flexibility while providing a separation between tags (like index columns in relational databases) and fields (like data columns).
 
-There is a single timer loop that triggers all collectors serially, collects the collectors' data and sends the metrics to the sink. The sinks currently use blocking APIs.
+There is a single timer loop that triggers all collectors serially, collects the collectors' data and sends the metrics to the sink. This is done as all data is submitted with a single time stamp. The sinks currently use mostly blocking APIs.
 
 The receiver runs as a go routine side-by-side with the timer loop and asynchronously forwards received metrics to the sink.
+
+# Todos
+
+- [ ] Use only non-blocking APIs for the sinks
+- [ ] Collector specific configuration in global JSON file? Changing the configuration inside the Go code is not user-friendly.
+

collectors/Makefile

@@ -1,16 +1,29 @@
 # Use central installation
 CENTRAL_INSTALL = false
+# How to access hardware performance counters through LIKWID.
+# Recommended is 'direct' mode
+ACCESSMODE = direct
 
+#######################################################################
+# if CENTRAL_INSTALL == true
+#######################################################################
 # Path to central installation (if CENTRAL_INSTALL=true)
-LIKWID_BASE=/usr/local
+LIKWID_BASE=/apps/likwid/5.2.0
 # LIKWID version (should be same major version as central installation, 5.1.x)
-LIKWID_VERSION = 5.1.0
+LIKWID_VERSION = 5.2.0
-# Target user for LIKWID's accessdaemon (if CENTRAL_INSTALL=false)
+
+#######################################################################
+# if CENTRAL_INSTALL == false and ACCESSMODE == accessdaemon
+#######################################################################
+# Where to install the accessdaemon
+DAEMON_INSTALLDIR = /usr/local
+# Which user to use for the accessdaemon
 DAEMON_USER = root
-# Target group for LIKWID's accessdaemon (if CENTRAL_INSTALL=false)
+# Which group to use for the accessdaemon
 DAEMON_GROUP = root
 
 
+
 #################################################
 # No need to change anything below this line
 #################################################
@@ -21,11 +34,10 @@ ifneq ($(strip $(CENTRAL_INSTALL)),true)
 LIKWID_BASE := $(shell pwd)/$(INSTALL_FOLDER)
 DAEMON_BASE := $(LIKWID_BASE)
 GROUPS_BASE := $(LIKWID_BASE)/groups
-all: $(INSTALL_FOLDER)/liblikwid.a $(INSTALL_FOLDER)/likwid-accessD cleanup prepare_collector
+all: $(INSTALL_FOLDER)/liblikwid.a cleanup
 else
 DAEMON_BASE= $(LIKWID_BASE)/sbin
-GROUPS_BASE := $(LIKWID_BASE)/share/likwid/perfgroups
+all: $(INSTALL_FOLDER)/liblikwid.a cleanup
-all: $(INSTALL_FOLDER)/liblikwid.a cleanup prepare_collector
 endif
 
 
@@ -45,18 +57,17 @@ $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION): $(BUILD_FOLDER)/likwid-$(LIKWID_VERSIO
 $(INSTALL_FOLDER)/liblikwid.a: $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION) $(INSTALL_FOLDER)
 	sed -i -e s+"PREFIX ?= .*"+"PREFIX = $(LIKWID_BASE)"+g \
 		-e s+"SHARED_LIBRARY = .*"+"SHARED_LIBRARY = false"+g \
-		-e s+"INSTALLED_ACCESSDAEMON = .*"+"INSTALLED_ACCESSDAEMON = $(DAEMON_BASE)/likwid-accessD"+g \
+		-e s+"ACCESSMODE = .*"+"ACCESSMODE = $(ACCESSMODE)"+g \
-		-e s+"LIKWIDGROUPPATH = .*"+"LIKWIDGROUPPATH = $(GROUPS_BASE)"+g \
+		-e s+"INSTALLED_ACCESSDAEMON = .*"+"INSTALLED_ACCESSDAEMON = $(DAEMON_INSTALLDIR)/likwid-accessD"+g \
 		$(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/config.mk
 	cd $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION) && make
 	cp $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/liblikwid.a $(INSTALL_FOLDER)
 	cp $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/ext/hwloc/liblikwid-hwloc.a $(INSTALL_FOLDER)
-	cp -r $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/groups $(INSTALL_FOLDER)
 	cp $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/src/includes/likwid*.h $(INSTALL_FOLDER)
 	cp $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/src/includes/bstrlib.h $(INSTALL_FOLDER)
 
-$(INSTALL_FOLDER)/likwid-accessD: $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/likwid-accessD
+$(DAEMON_INSTALLDIR)/likwid-accessD: $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/likwid-accessD
-	sudo -u $(DAEMON_USER) -g $(DAEMON_GROUP) install -m 4775 $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/likwid-accessD $(INSTALL_FOLDER)
+	sudo -u $(DAEMON_USER) -g $(DAEMON_GROUP) install -m 4775 $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/likwid-accessD $(DAEMON_INSTALLDIR)/likwid-accessD
 
 prepare_collector: likwidMetric.go
 	cp likwidMetric.go likwidMetric.go.orig
@@ -64,3 +75,8 @@ prepare_collector: likwidMetric.go
 
 cleanup:
 	rm -rf $(BUILD_FOLDER)
+
+clean: cleanup
+	rm -rf likwid
+
+.PHONY: clean

collectors/README.md

@@ -40,6 +40,8 @@ The base class/configuration is located in `metricCollector.go`.
 * `cpustatMetric.go`: Read CPU specific values from `/proc/stat`
 * `topprocsMetric.go`: Reads the Top5 processes by their CPU usage
 * `nvidiaMetric.go`: Read data about Nvidia GPUs using the NVML library
+* `tempMetric.go`: Read temperature data from `/sys/class/hwmon/hwmon*`
+* `ipmiMetric.go`: Collect data from `ipmitool` or as fallback `ipmi-sensors`
 
 If any of the collectors cannot be initialized, it is excluded from all further reads. Like if the Lustre stat file is not a valid path, no Lustre specific metrics will be recorded.
 
@@ -49,6 +51,9 @@ The InfiniBand collector requires the LID file to read the data. It has to be co
 # Lustre collector
 The Lustre collector requires the path to the Lustre stats file. It has to be configured in the collector itself (`LUSTREFILE` in `lustreMetric.go`)
 
+# Temperature collector
+This is optional configuration of the temperature collector. On multi-socket system there are multiple hwmon devices, one for each CPU socket but there is no field to determine which hwmon device corresponds to which CPU socket. After you determined the mapping, you can add it to the `tag_override` map in the collector.
+
 # LIKWID collector
 The `likwidMetric.go` requires preparation steps. For this, the `Makefile` can be used.
 

collectors/cpustatMetric.go

@@ -1,6 +1,9 @@
 package collectors
 
 import (
+	"encoding/json"
+	"fmt"
+	lp "github.com/influxdata/line-protocol"
 	"io/ioutil"
 	"strconv"
 	"strings"
@@ -9,41 +12,58 @@ import (
 
 const CPUSTATFILE = `/proc/stat`
 
-type CpustatCollector struct {
+type CpustatCollectorConfig struct {
-	MetricCollector
+	ExcludeMetrics []string `json:"exclude_metrics, omitempty"`
 }
 
-func (m *CpustatCollector) Init() error {
+type CpustatCollector struct {
+	MetricCollector
+	config CpustatCollectorConfig
+}
+
+func (m *CpustatCollector) Init(config []byte) error {
 	m.name = "CpustatCollector"
 	m.setup()
+	if len(config) > 0 {
+		err := json.Unmarshal(config, &m.config)
+		if err != nil {
+			return err
+		}
+	}
+	m.init = true
 	return nil
 }
 
-func ParseStatLine(line string, out map[string]interface{}) {
+func ParseStatLine(line string, cpu int, exclude []string, out *[]lp.MutableMetric) {
 	ls := strings.Fields(line)
-	user, _ := strconv.ParseInt(ls[1], 0, 64)
+	matches := []string{"", "cpu_user", "cpu_nice", "cpu_system", "cpu_idle", "cpu_iowait", "cpu_irq", "cpu_softirq", "cpu_steal", "cpu_guest", "cpu_guest_nice"}
-	out["cpu_user"] = float64(user)
+	for _, ex := range exclude {
-	nice, _ := strconv.ParseInt(ls[2], 0, 64)
+		matches, _ = RemoveFromStringList(matches, ex)
-	out["cpu_nice"] = float64(nice)
-	system, _ := strconv.ParseInt(ls[3], 0, 64)
-	out["cpu_system"] = float64(system)
-	idle, _ := strconv.ParseInt(ls[4], 0, 64)
-	out["cpu_idle"] = float64(idle)
-	iowait, _ := strconv.ParseInt(ls[5], 0, 64)
-	out["cpu_iowait"] = float64(iowait)
-	irq, _ := strconv.ParseInt(ls[6], 0, 64)
-	out["cpu_irq"] = float64(irq)
-	softirq, _ := strconv.ParseInt(ls[7], 0, 64)
-	out["cpu_softirq"] = float64(softirq)
-	steal, _ := strconv.ParseInt(ls[8], 0, 64)
-	out["cpu_steal"] = float64(steal)
-	guest, _ := strconv.ParseInt(ls[9], 0, 64)
-	out["cpu_guest"] = float64(guest)
-	guest_nice, _ := strconv.ParseInt(ls[10], 0, 64)
-	out["cpu_guest_nice"] = float64(guest_nice)
 	}
 
-func (m *CpustatCollector) Read(interval time.Duration) {
+	var tags map[string]string
+	if cpu < 0 {
+		tags = map[string]string{"type": "node"}
+	} else {
+		tags = map[string]string{"type": "cpu", "type-id": fmt.Sprintf("%d", cpu)}
+	}
+	for i, m := range matches {
+		if len(m) > 0 {
+			x, err := strconv.ParseInt(ls[i], 0, 64)
+			if err == nil {
+				y, err := lp.New(m, tags, map[string]interface{}{"value": int(x)}, time.Now())
+				if err == nil {
+					*out = append(*out, y)
+				}
+			}
+		}
+	}
+}
+
+func (m *CpustatCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
+	if !m.init {
+		return
+	}
 	buffer, err := ioutil.ReadFile(string(CPUSTATFILE))
 
 	if err != nil {
@@ -57,15 +77,16 @@ func (m *CpustatCollector) Read(interval time.Duration) {
 		}
 		ls := strings.Fields(line)
 		if strings.Compare(ls[0], "cpu") == 0 {
-			ParseStatLine(line, m.node)
+			ParseStatLine(line, -1, m.config.ExcludeMetrics, out)
 		} else if strings.HasPrefix(ls[0], "cpu") {
 			cpustr := strings.TrimLeft(ls[0], "cpu")
 			cpu, _ := strconv.Atoi(cpustr)
-			ParseStatLine(line, m.cpus[cpu])
+			ParseStatLine(line, cpu, m.config.ExcludeMetrics, out)
 		}
 	}
 }
 
 func (m *CpustatCollector) Close() {
+	m.init = false
 	return
 }

collectors/customCmdMetric.go

@@ -0,0 +1,130 @@
+package collectors
+
+import (
+	"encoding/json"
+	"errors"
+	lp "github.com/influxdata/line-protocol"
+	"io/ioutil"
+	"log"
+	"os/exec"
+	"strings"
+	"time"
+)
+
+const CUSTOMCMDPATH = `/home/unrz139/Work/cc-metric-collector/collectors/custom`
+
+type CustomCmdCollectorConfig struct {
+	commands       []string `json:"commands"`
+	files          []string `json:"files"`
+	ExcludeMetrics []string `json:"exclude_metrics"`
+}
+
+type CustomCmdCollector struct {
+	MetricCollector
+	handler  *lp.MetricHandler
+	parser   *lp.Parser
+	config   CustomCmdCollectorConfig
+	commands []string
+	files    []string
+}
+
+func (m *CustomCmdCollector) Init(config []byte) error {
+	var err error
+	m.name = "CustomCmdCollector"
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			log.Print(err.Error())
+			return err
+		}
+	}
+	m.setup()
+	for _, c := range m.config.commands {
+		cmdfields := strings.Fields(c)
+		command := exec.Command(cmdfields[0], strings.Join(cmdfields[1:], " "))
+		command.Wait()
+		_, err = command.Output()
+		if err != nil {
+			m.commands = append(m.commands, c)
+		}
+	}
+	for _, f := range m.config.files {
+		_, err = ioutil.ReadFile(f)
+		if err == nil {
+			m.files = append(m.files, f)
+		} else {
+			log.Print(err.Error())
+			continue
+		}
+	}
+	if len(m.files) == 0 && len(m.commands) == 0 {
+		return errors.New("No metrics to collect")
+	}
+	m.handler = lp.NewMetricHandler()
+	m.parser = lp.NewParser(m.handler)
+	m.parser.SetTimeFunc(DefaultTime)
+	m.init = true
+	return nil
+}
+
+var DefaultTime = func() time.Time {
+	return time.Unix(42, 0)
+}
+
+func (m *CustomCmdCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
+	if !m.init {
+		return
+	}
+	for _, cmd := range m.commands {
+		cmdfields := strings.Fields(cmd)
+		command := exec.Command(cmdfields[0], strings.Join(cmdfields[1:], " "))
+		command.Wait()
+		stdout, err := command.Output()
+		if err != nil {
+			log.Print(err)
+			continue
+		}
+		cmdmetrics, err := m.parser.Parse(stdout)
+		if err != nil {
+			log.Print(err)
+			continue
+		}
+		for _, c := range cmdmetrics {
+			_, skip := stringArrayContains(m.config.ExcludeMetrics, c.Name())
+			if skip {
+				continue
+			}
+			y, err := lp.New(c.Name(), Tags2Map(c), Fields2Map(c), c.Time())
+			if err == nil {
+				*out = append(*out, y)
+			}
+		}
+	}
+	for _, file := range m.files {
+		buffer, err := ioutil.ReadFile(file)
+		if err != nil {
+			log.Print(err)
+			return
+		}
+		fmetrics, err := m.parser.Parse(buffer)
+		if err != nil {
+			log.Print(err)
+			continue
+		}
+		for _, f := range fmetrics {
+			_, skip := stringArrayContains(m.config.ExcludeMetrics, f.Name())
+			if skip {
+				continue
+			}
+			y, err := lp.New(f.Name(), Tags2Map(f), Fields2Map(f), f.Time())
+			if err == nil {
+				*out = append(*out, y)
+			}
+		}
+	}
+}
+
+func (m *CustomCmdCollector) Close() {
+	m.init = false
+	return
+}

collectors/diskstatMetric.go

@@ -0,0 +1,116 @@
+package collectors
+
+import (
+	lp "github.com/influxdata/line-protocol"
+	"io/ioutil"
+	//	"log"
+	"encoding/json"
+	"errors"
+	"strconv"
+	"strings"
+	"time"
+)
+
+const DISKSTATFILE = `/proc/diskstats`
+const DISKSTAT_SYSFSPATH = `/sys/block`
+
+type DiskstatCollectorConfig struct {
+	ExcludeMetrics []string `json:"exclude_metrics, omitempty"`
+}
+
+type DiskstatCollector struct {
+	MetricCollector
+	matches map[int]string
+	config  DiskstatCollectorConfig
+}
+
+func (m *DiskstatCollector) Init(config []byte) error {
+	var err error
+	m.name = "DiskstatCollector"
+	m.setup()
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			return err
+		}
+	}
+	// https://www.kernel.org/doc/html/latest/admin-guide/iostats.html
+	matches := map[int]string{
+		3:  "reads",
+		4:  "reads_merged",
+		5:  "read_sectors",
+		6:  "read_ms",
+		7:  "writes",
+		8:  "writes_merged",
+		9:  "writes_sectors",
+		10: "writes_ms",
+		11: "ioops",
+		12: "ioops_ms",
+		13: "ioops_weighted_ms",
+		14: "discards",
+		15: "discards_merged",
+		16: "discards_sectors",
+		17: "discards_ms",
+		18: "flushes",
+		19: "flushes_ms",
+	}
+	m.matches = make(map[int]string)
+	for k, v := range matches {
+		_, skip := stringArrayContains(m.config.ExcludeMetrics, v)
+		if !skip {
+			m.matches[k] = v
+		}
+	}
+	if len(m.matches) == 0 {
+		return errors.New("No metrics to collect")
+	}
+	_, err = ioutil.ReadFile(string(DISKSTATFILE))
+	if err == nil {
+		m.init = true
+	}
+	return err
+}
+
+func (m *DiskstatCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
+	var lines []string
+	if !m.init {
+		return
+	}
+
+	buffer, err := ioutil.ReadFile(string(DISKSTATFILE))
+	if err != nil {
+		return
+	}
+	lines = strings.Split(string(buffer), "\n")
+
+	for _, line := range lines {
+		if len(line) == 0 {
+			continue
+		}
+		f := strings.Fields(line)
+		if strings.Contains(f[2], "loop") {
+			continue
+		}
+		tags := map[string]string{
+			"device": f[2],
+			"type":   "node",
+		}
+		for idx, name := range m.matches {
+			if idx < len(f) {
+				x, err := strconv.ParseInt(f[idx], 0, 64)
+				if err == nil {
+					y, err := lp.New(name, tags, map[string]interface{}{"value": int(x)}, time.Now())
+					if err == nil {
+						*out = append(*out, y)
+					}
+				}
+			}
+		}
+	}
+	return
+}
+
+func (m *DiskstatCollector) Close() {
+	m.init = false
+	return
+}

collectors/infinibandMetric.go

@@ -2,45 +2,124 @@ package collectors
 
 import (
 	"fmt"
+	lp "github.com/influxdata/line-protocol"
 	"io/ioutil"
 	"log"
 	"os/exec"
+	//	"os"
+	"encoding/json"
+	"errors"
+	"path/filepath"
 	"strconv"
 	"strings"
 	"time"
 )
 
+const IBBASEPATH = `/sys/class/infiniband/`
 const LIDFILE = `/sys/class/infiniband/mlx4_0/ports/1/lid`
+const PERFQUERY = `/usr/sbin/perfquery`
+
+type InfinibandCollectorConfig struct {
+	ExcludeDevices []string `json:"exclude_devices, omitempty"`
+	PerfQueryPath  string   `json:"perfquery_path"`
+}
 
 type InfinibandCollector struct {
 	MetricCollector
+	tags          map[string]string
+	lids          map[string]map[string]string
+	config        InfinibandCollectorConfig
+	use_perfquery bool
 }
 
-func (m *InfinibandCollector) Init() error {
+func (m *InfinibandCollector) Help() {
+	fmt.Println("This collector includes all devices that can be found below ", IBBASEPATH)
+	fmt.Println("and where any of the ports provides a 'lid' file (glob ", IBBASEPATH, "/<dev>/ports/<port>/lid).")
+	fmt.Println("The devices can be filtered with the 'exclude_devices' option in the configuration.")
+	fmt.Println("For each found LIDs the collector calls the 'perfquery' command")
+	fmt.Println("The path to the 'perfquery' command can be configured with the 'perfquery_path' option")
+	fmt.Println("in the configuration\n")
+	fmt.Println("Full configuration object:")
+	fmt.Println("\"ibstat\" : {")
+	fmt.Println("  \"perfquery_path\" : \"path/to/perfquery\"  # if omitted, it searches in $PATH")
+	fmt.Println("  \"exclude_devices\" : [\"dev1\"]")
+	fmt.Println("}\n")
+	fmt.Println("Metrics:")
+	fmt.Println("- ib_recv")
+	fmt.Println("- ib_xmit")
+}
+
+func (m *InfinibandCollector) Init(config []byte) error {
+	var err error
 	m.name = "InfinibandCollector"
+	m.use_perfquery = false
 	m.setup()
-	_, err := ioutil.ReadFile(string(LIDFILE))
+	m.tags = map[string]string{"type": "node"}
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			return err
+		}
+	}
+	if len(m.config.PerfQueryPath) == 0 {
+		path, err := exec.LookPath("perfquery")
+		if err == nil {
+			m.config.PerfQueryPath = path
+		}
+	}
+	m.lids = make(map[string]map[string]string)
+	p := fmt.Sprintf("%s/*/ports/*/lid", string(IBBASEPATH))
+	files, err := filepath.Glob(p)
+	for _, f := range files {
+		lid, err := ioutil.ReadFile(f)
+		if err == nil {
+			plist := strings.Split(strings.Replace(f, string(IBBASEPATH), "", -1), "/")
+			skip := false
+			for _, d := range m.config.ExcludeDevices {
+				if d == plist[0] {
+					skip = true
+				}
+			}
+			if !skip {
+				m.lids[plist[0]] = make(map[string]string)
+				m.lids[plist[0]][plist[2]] = string(lid)
+			}
+		}
+	}
+
+	for _, ports := range m.lids {
+		for port, lid := range ports {
+			args := fmt.Sprintf("-r %s %s 0xf000", lid, port)
+			command := exec.Command(m.config.PerfQueryPath, args)
+			command.Wait()
+			_, err := command.Output()
+			if err == nil {
+				m.use_perfquery = true
+			}
+			break
+		}
+		break
+	}
+
+	if len(m.lids) > 0 {
+		m.init = true
+	} else {
+		err = errors.New("No usable devices")
+	}
+
 	return err
 }
 
-func (m *InfinibandCollector) Read(interval time.Duration) {
+func DoPerfQuery(cmd string, dev string, lid string, port string, tags map[string]string, out *[]lp.MutableMetric) error {
-	buffer, err := ioutil.ReadFile(string(LIDFILE))
 
-	if err != nil {
+	args := fmt.Sprintf("-r %s %s 0xf000", lid, port)
-		log.Print(err)
+	command := exec.Command(cmd, args)
-		return
-	}
-
-	args := fmt.Sprintf("-r %s 1 0xf000", string(buffer))
-
-	command := exec.Command("/usr/sbin/perfquery", args)
 	command.Wait()
 	stdout, err := command.Output()
 	if err != nil {
 		log.Print(err)
-		return
+		return err
 	}
-
 	ll := strings.Split(string(stdout), "\n")
 
 	for _, line := range ll {
@@ -48,19 +127,112 @@ func (m *InfinibandCollector) Read(interval time.Duration) {
 			lv := strings.Fields(line)
 			v, err := strconv.ParseFloat(lv[1], 64)
 			if err == nil {
-				m.node["ib_recv"] = float64(v)
+				y, err := lp.New("ib_recv", tags, map[string]interface{}{"value": float64(v)}, time.Now())
+				if err == nil {
+					*out = append(*out, y)
+				}
 			}
 		}
 		if strings.HasPrefix(line, "PortXmitData") || strings.HasPrefix(line, "XmtData") {
 			lv := strings.Fields(line)
 			v, err := strconv.ParseFloat(lv[1], 64)
 			if err == nil {
-				m.node["ib_xmit"] = float64(v)
+				y, err := lp.New("ib_xmit", tags, map[string]interface{}{"value": float64(v)}, time.Now())
+				if err == nil {
+					*out = append(*out, y)
+				}
+			}
+		}
+	}
+	return nil
+}
+
+func DoSysfsRead(dev string, lid string, port string, tags map[string]string, out *[]lp.MutableMetric) error {
+	path := fmt.Sprintf("%s/%s/ports/%s/counters/", string(IBBASEPATH), dev, port)
+	buffer, err := ioutil.ReadFile(fmt.Sprintf("%s/port_rcv_data", path))
+	if err == nil {
+		data := strings.Replace(string(buffer), "\n", "", -1)
+		v, err := strconv.ParseFloat(data, 64)
+		if err == nil {
+			y, err := lp.New("ib_recv", tags, map[string]interface{}{"value": float64(v)}, time.Now())
+			if err == nil {
+				*out = append(*out, y)
+			}
+		}
+	}
+	buffer, err = ioutil.ReadFile(fmt.Sprintf("%s/port_xmit_data", path))
+	if err == nil {
+		data := strings.Replace(string(buffer), "\n", "", -1)
+		v, err := strconv.ParseFloat(data, 64)
+		if err == nil {
+			y, err := lp.New("ib_xmit", tags, map[string]interface{}{"value": float64(v)}, time.Now())
+			if err == nil {
+				*out = append(*out, y)
+			}
+		}
+	}
+	return nil
+}
+
+func (m *InfinibandCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
+
+	if m.init {
+		for dev, ports := range m.lids {
+			for port, lid := range ports {
+				tags := map[string]string{"type": "node", "device": dev, "port": port}
+				if m.use_perfquery {
+					DoPerfQuery(m.config.PerfQueryPath, dev, lid, port, tags, out)
+				} else {
+					DoSysfsRead(dev, lid, port, tags, out)
 				}
 			}
 		}
 	}
 
+	//	buffer, err := ioutil.ReadFile(string(LIDFILE))
+
+	//	if err != nil {
+	//		log.Print(err)
+	//		return
+	//	}
+
+	//	args := fmt.Sprintf("-r %s 1 0xf000", string(buffer))
+
+	//	command := exec.Command(PERFQUERY, args)
+	//	command.Wait()
+	//	stdout, err := command.Output()
+	//	if err != nil {
+	//		log.Print(err)
+	//		return
+	//	}
+
+	//	ll := strings.Split(string(stdout), "\n")
+
+	//	for _, line := range ll {
+	//		if strings.HasPrefix(line, "PortRcvData") || strings.HasPrefix(line, "RcvData") {
+	//			lv := strings.Fields(line)
+	//			v, err := strconv.ParseFloat(lv[1], 64)
+	//			if err == nil {
+	//				y, err := lp.New("ib_recv", m.tags, map[string]interface{}{"value": float64(v)}, time.Now())
+	//				if err == nil {
+	//					*out = append(*out, y)
+	//				}
+	//			}
+	//		}
+	//		if strings.HasPrefix(line, "PortXmitData") || strings.HasPrefix(line, "XmtData") {
+	//			lv := strings.Fields(line)
+	//			v, err := strconv.ParseFloat(lv[1], 64)
+	//			if err == nil {
+	//				y, err := lp.New("ib_xmit", m.tags, map[string]interface{}{"value": float64(v)}, time.Now())
+	//				if err == nil {
+	//					*out = append(*out, y)
+	//				}
+	//			}
+	//		}
+	//	}
+}
+
 func (m *InfinibandCollector) Close() {
+	m.init = false
 	return
 }

collectors/ipmiMetric.go

@@ -0,0 +1,137 @@
+package collectors
+
+import (
+	"errors"
+	lp "github.com/influxdata/line-protocol"
+	"log"
+	"strconv"
+	"strings"
+	"time"
+	"os"
+	"os/exec"
+	"encoding/json"
+)
+
+const IPMITOOL_PATH = `/usr/bin/ipmitool`
+const IPMISENSORS_PATH = `/usr/sbin/ipmi-sensors`
+
+type IpmiCollectorConfig struct {
+    ExcludeDevices []string `json:"exclude_devices"`
+    IpmitoolPath string `json:"ipmitool_path"`
+    IpmisensorsPath string `json:"ipmisensors_path"`
+}
+
+type IpmiCollector struct {
+	MetricCollector
+	tags    map[string]string
+	matches map[string]string
+	config IpmiCollectorConfig
+}
+
+func (m *IpmiCollector) Init(config []byte) error {
+	m.name = "IpmiCollector"
+	m.setup()
+	if len(config) > 0 {
+		err := json.Unmarshal(config, &m.config)
+		if err != nil {
+			return err
+		}
+	}
+	_, err1 := os.Stat(m.config.IpmitoolPath)
+	_, err2 := os.Stat(m.config.IpmisensorsPath)
+	if err1 != nil {
+	    m.config.IpmitoolPath = ""
+	}
+	if err2 != nil {
+	    m.config.IpmisensorsPath = ""
+	}
+	if err1 != nil && err2 != nil {
+	    return errors.New("No IPMI reader found")
+	}
+	m.init = true
+	return nil
+}
+
+func ReadIpmiTool(cmd string, out *[]lp.MutableMetric) {
+	command := exec.Command(cmd, "sensor")
+	command.Wait()
+	stdout, err := command.Output()
+	if err != nil {
+		log.Print(err)
+		return
+	}
+
+	ll := strings.Split(string(stdout), "\n")
+
+	for _, line := range ll {
+		lv := strings.Split(line, "|")
+		if len(lv) < 3 {
+            continue
+        }
+		v, err := strconv.ParseFloat(strings.Trim(lv[1], " "), 64)
+		if err == nil {
+			name := strings.ToLower(strings.Replace(strings.Trim(lv[0], " "), " ", "_", -1))
+			unit := strings.Trim(lv[2], " ")
+			if unit == "Volts" {
+			    unit = "V"
+			} else if unit == "degrees C" {
+			    unit = "C"
+			} else if unit == "degrees F" {
+			    unit = "F"
+			} else if unit == "Watts" {
+			    unit = "W"
+			}
+			
+			y, err := lp.New(name, map[string]string{"unit": unit, "type" : "node"}, map[string]interface{}{"value": v}, time.Now())
+			if err == nil {
+				*out = append(*out, y)
+			}
+		}
+	}
+}
+
+func ReadIpmiSensors(cmd string, out *[]lp.MutableMetric) {
+
+	command := exec.Command(cmd, "--comma-separated-output", "--sdr-cache-recreate")
+	command.Wait()
+	stdout, err := command.Output()
+	if err != nil {
+		log.Print(err)
+		return
+	}
+
+	ll := strings.Split(string(stdout), "\n")
+
+	for _, line := range ll {
+		lv := strings.Split(line, ",")
+		if len(lv) > 3 {
+		    v, err := strconv.ParseFloat(lv[3], 64)
+		    if err == nil {
+			    name := strings.ToLower(strings.Replace(lv[1], " ", "_", -1))
+			    y, err := lp.New(name, map[string]string{"unit": lv[4], "type" : "node"}, map[string]interface{}{"value": v}, time.Now())
+			    if err == nil {
+				    *out = append(*out, y)
+			    }
+		    }
+		}
+	}
+}
+
+func (m *IpmiCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
+    if len(m.config.IpmitoolPath) > 0 {
+	    _, err := os.Stat(m.config.IpmitoolPath)
+	    if err == nil {
+		    ReadIpmiTool(m.config.IpmitoolPath, out)
+		}
+	} else if len(m.config.IpmisensorsPath) > 0 {
+	    _, err := os.Stat(m.config.IpmisensorsPath)
+		if err == nil {
+			ReadIpmiSensors(m.config.IpmisensorsPath, out)
+		}
+	}
+}
+
+func (m *IpmiCollector) Close() {
+	m.init = false
+	return
+}

collectors/likwidMetric.go

@@ -9,21 +9,51 @@ package collectors
 import "C"
 
 import (
+	"encoding/json"
 	"errors"
 	"fmt"
+	lp "github.com/influxdata/line-protocol"
+	"gopkg.in/Knetic/govaluate.v2"
+	"io/ioutil"
 	"log"
+	"math"
+	"os"
+	"strconv"
 	"strings"
 	"time"
 	"unsafe"
 )
 
+type LikwidCollectorMetricConfig struct {
+	Name         string `json:"name"`
+	Calc         string `json:"calc"`
+	Socket_scope bool   `json:"socket_scope"`
+	Publish      bool   `json:"publish"`
+}
+
+type LikwidCollectorEventsetConfig struct {
+	Events  map[string]string             `json:"events"`
+	Metrics []LikwidCollectorMetricConfig `json:"metrics"`
+}
+
+type LikwidCollectorConfig struct {
+	Eventsets      []LikwidCollectorEventsetConfig `json:"eventsets"`
+	Metrics        []LikwidCollectorMetricConfig   `json:"globalmetrics"`
+	ExcludeMetrics []string                        `json:"exclude_metrics"`
+	ForceOverwrite bool                            `json:"force_overwrite"`
+}
+
 type LikwidCollector struct {
 	MetricCollector
 	cpulist   []C.int
 	sock2tid  map[int]int
 	metrics   map[C.int]map[string]int
-	groups   map[string]C.int
+	groups    []C.int
-	init     bool
+	config    LikwidCollectorConfig
+	results   map[int]map[int]map[string]interface{}
+	mresults  map[int]map[int]map[string]float64
+	gmresults map[int]map[string]float64
+	basefreq  float64
 }
 
 type LikwidMetric struct {
@@ -33,28 +63,31 @@ type LikwidMetric struct {
 	group_idx    int
 }
 
-const GROUPPATH = `/home/unrz139/Work/cc-metric-collector/collectors/likwid/groups`
+func eventsToEventStr(events map[string]string) string {
-
+	elist := make([]string, 0)
-var likwid_metrics = map[string][]LikwidMetric{
+	for k, v := range events {
-	"MEM_DP": {LikwidMetric{name: "mem_bw", search: "Memory bandwidth [MBytes/s]", socket_scope: true},
+		elist = append(elist, fmt.Sprintf("%s:%s", v, k))
-		LikwidMetric{name: "pwr1", search: "Power [W]", socket_scope: true},
+	}
-		LikwidMetric{name: "pwr2", search: "Power DRAM [W]", socket_scope: true},
+	return strings.Join(elist, ",")
-		LikwidMetric{name: "flops_dp", search: "DP [MFLOP/s]", socket_scope: false}},
-	"FLOPS_SP": {LikwidMetric{name: "clock", search: "Clock [MHz]", socket_scope: false},
-		LikwidMetric{name: "cpi", search: "CPI", socket_scope: false},
-		LikwidMetric{name: "flops_sp", search: "SP [MFLOP/s]", socket_scope: false}},
 }
 
-func getMetricId(group C.int, search string) (int, error) {
+func getBaseFreq() float64 {
-	for i := 0; i < int(C.perfmon_getNumberOfMetrics(group)); i++ {
+	var freq float64 = math.NaN()
-		mname := C.perfmon_getMetricName(group, C.int(i))
+	C.power_init(0)
-		go_mname := C.GoString(mname)
+	info := C.get_powerInfo()
-		if strings.Contains(go_mname, search) {
+	if float64(info.baseFrequency) != 0 {
-			return i, nil
+		freq = float64(info.baseFrequency)
+	} else {
+		buffer, err := ioutil.ReadFile("/sys/devices/system/cpu/cpu0/cpufreq/bios_limit")
+		if err == nil {
+			data := strings.Replace(string(buffer), "\n", "", -1)
+			x, err := strconv.ParseInt(data, 0, 64)
+			if err == nil {
+				freq = float64(x) * 1e3
 			}
-
 		}
-	return -1, errors.New(fmt.Sprintf("Cannot find metric for search string '%s' in group %d", search, int(group)))
+	}
+	return freq
 }
 
 func getSocketCpus() map[C.int]int {
@@ -71,9 +104,15 @@ func getSocketCpus() map[C.int]int {
 	return outmap
 }
 
-func (m *LikwidCollector) Init() error {
+func (m *LikwidCollector) Init(config []byte) error {
 	var ret C.int
 	m.name = "LikwidCollector"
+	if len(config) > 0 {
+		err := json.Unmarshal(config, &m.config)
+		if err != nil {
+			return err
+		}
+	}
 	m.setup()
 	cpulist := CpuList()
 	m.cpulist = make([]C.int, len(cpulist))
@@ -86,105 +125,172 @@ func (m *LikwidCollector) Init() error {
 			m.sock2tid[sid] = i
 		}
 	}
-	m.metrics = make(map[C.int]map[string]int)
+	m.results = make(map[int]map[int]map[string]interface{})
-	m.groups = make(map[string]C.int)
+	m.mresults = make(map[int]map[int]map[string]float64)
+	m.gmresults = make(map[int]map[string]float64)
 	ret = C.topology_init()
 	if ret != 0 {
 		return errors.New("Failed to initialize LIKWID topology")
 	}
+	if m.config.ForceOverwrite {
+		os.Setenv("LIKWID_FORCE", "1")
+	}
 	ret = C.perfmon_init(C.int(len(m.cpulist)), &m.cpulist[0])
 	if ret != 0 {
 		C.topology_finalize()
 		return errors.New("Failed to initialize LIKWID topology")
 	}
-	gpath := C.CString(GROUPPATH)
-	C.config_setGroupPath(gpath)
-	C.free(unsafe.Pointer(gpath))
 
-	for g, metrics := range likwid_metrics {
+	for i, evset := range m.config.Eventsets {
-		cstr := C.CString(g)
+		estr := eventsToEventStr(evset.Events)
+		cstr := C.CString(estr)
 		gid := C.perfmon_addEventSet(cstr)
 		if gid >= 0 {
-			gmetrics := 0
+			m.groups = append(m.groups, gid)
-			for i, metric := range metrics {
-				idx, err := getMetricId(gid, metric.search)
-				if err != nil {
-					log.Print(err)
-				} else {
-					likwid_metrics[g][i].group_idx = idx
-					gmetrics++
-				}
-			}
-			if gmetrics > 0 {
-				m.groups[g] = gid
-			}
-		} else {
-			log.Print("Failed to add events set ", g)
 		}
 		C.free(unsafe.Pointer(cstr))
+		m.results[i] = make(map[int]map[string]interface{})
+		m.mresults[i] = make(map[int]map[string]float64)
+		for tid, _ := range m.cpulist {
+			m.results[i][tid] = make(map[string]interface{})
+			m.mresults[i][tid] = make(map[string]float64)
+			m.gmresults[tid] = make(map[string]float64)
 		}
+	}
+
 	if len(m.groups) == 0 {
 		C.perfmon_finalize()
 		C.topology_finalize()
 		return errors.New("No LIKWID performance group initialized")
 	}
+	m.basefreq = getBaseFreq()
 	m.init = true
 	return nil
 }
 
-func (m *LikwidCollector) Read(interval time.Duration) {
+func (m *LikwidCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
-	if m.init {
+	if !m.init {
+		return
+	}
 	var ret C.int
-		for gname, gid := range m.groups {
+
+	for i, gid := range m.groups {
+		evset := m.config.Eventsets[i]
 		ret = C.perfmon_setupCounters(gid)
 		if ret != 0 {
-				log.Print("Failed to setup performance group ", gname)
+			log.Print("Failed to setup performance group ", C.perfmon_getGroupName(gid))
 			continue
 		}
 		ret = C.perfmon_startCounters()
 		if ret != 0 {
-				log.Print("Failed to start performance group ", gname)
+			log.Print("Failed to start performance group ", C.perfmon_getGroupName(gid))
 			continue
 		}
 		time.Sleep(interval)
 		ret = C.perfmon_stopCounters()
 		if ret != 0 {
-				log.Print("Failed to stop performance group ", gname)
+			log.Print("Failed to stop performance group ", C.perfmon_getGroupName(gid))
 			continue
 		}
+		var eidx C.int
+		for tid, _ := range m.cpulist {
+			for eidx = 0; int(eidx) < len(evset.Events); eidx++ {
+				ctr := C.perfmon_getCounterName(gid, eidx)
+				gctr := C.GoString(ctr)
+				res := C.perfmon_getLastResult(gid, eidx, C.int(tid))
+				m.results[i][tid][gctr] = float64(res)
+			}
+			m.results[i][tid]["time"] = float64(interval)
+			m.results[i][tid]["inverseClock"] = float64(1.0 / m.basefreq)
+			for _, metric := range evset.Metrics {
+				expression, err := govaluate.NewEvaluableExpression(metric.Calc)
+				if err != nil {
+					log.Print(err.Error())
+					continue
+				}
+				result, err := expression.Evaluate(m.results[i][tid])
+				if err != nil {
+					log.Print(err.Error())
+					continue
+				}
+				m.mresults[i][tid][metric.Name] = float64(result.(float64))
+			}
+		}
+	}
 
-			for _, lmetric := range likwid_metrics[gname] {
+	for _, metric := range m.config.Metrics {
-				if lmetric.socket_scope {
+		for tid, _ := range m.cpulist {
+			var params map[string]interface{}
+			expression, err := govaluate.NewEvaluableExpression(metric.Calc)
+			if err != nil {
+				log.Print(err.Error())
+				continue
+			}
+			params = make(map[string]interface{})
+			for j, _ := range m.groups {
+				for mname, mres := range m.mresults[j][tid] {
+					params[mname] = mres
+				}
+			}
+			result, err := expression.Evaluate(params)
+			if err != nil {
+				log.Print(err.Error())
+				continue
+			}
+			m.gmresults[tid][metric.Name] = float64(result.(float64))
+		}
+	}
+	for i, _ := range m.groups {
+		evset := m.config.Eventsets[i]
+		for _, metric := range evset.Metrics {
+			_, skip := stringArrayContains(m.config.ExcludeMetrics, metric.Name)
+			if metric.Publish && !skip {
+				if metric.Socket_scope {
 					for sid, tid := range m.sock2tid {
-						res := C.perfmon_getLastMetric(gid, C.int(lmetric.group_idx), C.int(tid))
+						y, err := lp.New(metric.Name,
-						m.sockets[int(sid)][lmetric.name] = float64(res)
+							map[string]string{"type": "socket", "type-id": fmt.Sprintf("%d", int(sid))},
-						// log.Print("Metric '", lmetric.name,"' on Socket ",int(sid)," returns ", m.sockets[int(sid)][lmetric.name])
+							map[string]interface{}{"value": m.mresults[i][tid][metric.Name]},
+							time.Now())
+						if err == nil {
+							*out = append(*out, y)
+						}
 					}
 				} else {
 					for tid, cpu := range m.cpulist {
-						res := C.perfmon_getLastMetric(gid, C.int(lmetric.group_idx), C.int(tid))
+						y, err := lp.New(metric.Name,
-						m.cpus[int(cpu)][lmetric.name] = float64(res)
+							map[string]string{"type": "cpu", "type-id": fmt.Sprintf("%d", int(cpu))},
-						// log.Print("Metric '", lmetric.name,"' on CPU ",int(cpu)," returns ", m.cpus[int(cpu)][lmetric.name])
+							map[string]interface{}{"value": m.mresults[i][tid][metric.Name]},
+							time.Now())
+						if err == nil {
+							*out = append(*out, y)
 						}
 					}
 				}
-			for cpu := range m.cpus {
-				if flops_dp, found := m.cpus[cpu]["flops_dp"]; found {
-					if flops_sp, found := m.cpus[cpu]["flops_sp"]; found {
-						m.cpus[cpu]["flops_any"] = (2 * flops_dp.(float64)) + flops_sp.(float64)
 			}
 		}
 	}
-			for sid := range m.sockets {
+	for _, metric := range m.config.Metrics {
-				if pwr1, found := m.sockets[int(sid)]["pwr1"]; found {
+		_, skip := stringArrayContains(m.config.ExcludeMetrics, metric.Name)
-					if pwr2, found := m.sockets[int(sid)]["pwr2"]; found {
+		if metric.Publish && !skip {
-						sum := pwr1.(float64) + pwr2.(float64)
+			if metric.Socket_scope {
-						if sum > 0 {
+				for sid, tid := range m.sock2tid {
-							m.sockets[int(sid)]["power"] = sum
+					y, err := lp.New(metric.Name,
+						map[string]string{"type": "socket", "type-id": fmt.Sprintf("%d", int(sid))},
+						map[string]interface{}{"value": m.gmresults[tid][metric.Name]},
+						time.Now())
+					if err == nil {
+						*out = append(*out, y)
 					}
-						delete(m.sockets[int(sid)], "pwr2")
 				}
-					delete(m.sockets[int(sid)], "pwr1")
+			} else {
+				for tid, cpu := range m.cpulist {
+					y, err := lp.New(metric.Name,
+						map[string]string{"type": "cpu", "type-id": fmt.Sprintf("%d", int(cpu))},
+						map[string]interface{}{"value": m.gmresults[tid][metric.Name]},
+						time.Now())
+					if err == nil {
+						*out = append(*out, y)
+					}
 				}
 			}
 		}
@@ -193,9 +299,9 @@ func (m *LikwidCollector) Read(interval time.Duration) {
 
 func (m *LikwidCollector) Close() {
 	if m.init {
+		m.init = false
 		C.perfmon_finalize()
 		C.topology_finalize()
-		m.init = false
 	}
 	return
 }

collectors/loadavgMetric.go

@@ -1,6 +1,8 @@
 package collectors
 
 import (
+	"encoding/json"
+	lp "github.com/influxdata/line-protocol"
 	"io/ioutil"
 	"strconv"
 	"strings"
@@ -9,17 +11,39 @@ import (
 
 const LOADAVGFILE = `/proc/loadavg`
 
-type LoadavgCollector struct {
+type LoadavgCollectorConfig struct {
-	MetricCollector
+	ExcludeMetrics []string `json:"exclude_metrics, omitempty"`
 }
 
-func (m *LoadavgCollector) Init() error {
+type LoadavgCollector struct {
+	MetricCollector
+	tags         map[string]string
+	load_matches []string
+	proc_matches []string
+	config       LoadavgCollectorConfig
+}
+
+func (m *LoadavgCollector) Init(config []byte) error {
 	m.name = "LoadavgCollector"
 	m.setup()
+	if len(config) > 0 {
+		err := json.Unmarshal(config, &m.config)
+		if err != nil {
+			return err
+		}
+	}
+	m.tags = map[string]string{"type": "node"}
+	m.load_matches = []string{"load_one", "load_five", "load_fifteen"}
+	m.proc_matches = []string{"proc_run", "proc_total"}
+	m.init = true
 	return nil
 }
 
-func (m *LoadavgCollector) Read(interval time.Duration) {
+func (m *LoadavgCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
+	var skip bool
+	if !m.init {
+		return
+	}
 	buffer, err := ioutil.ReadFile(string(LOADAVGFILE))
 
 	if err != nil {
@@ -27,19 +51,30 @@ func (m *LoadavgCollector) Read(interval time.Duration) {
 	}
 
 	ls := strings.Split(string(buffer), ` `)
-	loadOne, _ := strconv.ParseFloat(ls[0], 64)
+	for i, name := range m.load_matches {
-	m.node["load_one"] = float64(loadOne)
+		x, err := strconv.ParseFloat(ls[i], 64)
-	loadFive, _ := strconv.ParseFloat(ls[1], 64)
+		if err == nil {
-	m.node["load_five"] = float64(loadFive)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, name)
-	loadFifteen, _ := strconv.ParseFloat(ls[2], 64)
+			y, err := lp.New(name, m.tags, map[string]interface{}{"value": float64(x)}, time.Now())
-	m.node["load_fifteen"] = float64(loadFifteen)
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
+		}
+	}
 	lv := strings.Split(ls[3], `/`)
-	proc_run, _ := strconv.ParseFloat(lv[0], 64)
+	for i, name := range m.proc_matches {
-	proc_total, _ := strconv.ParseFloat(lv[1], 64)
+		x, err := strconv.ParseFloat(lv[i], 64)
-	m.node["proc_total"] = float64(proc_total)
+		if err == nil {
-	m.node["proc_run"] = float64(proc_run)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, name)
+			y, err := lp.New(name, m.tags, map[string]interface{}{"value": float64(x)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
+		}
+	}
 }
 
 func (m *LoadavgCollector) Close() {
+	m.init = false
 	return
 }

collectors/lustreMetric.go

@@ -1,6 +1,9 @@
 package collectors
 
 import (
+	"encoding/json"
+	"errors"
+	lp "github.com/influxdata/line-protocol"
 	"io/ioutil"
 	"log"
 	"strconv"
@@ -10,19 +13,62 @@ import (
 
 const LUSTREFILE = `/proc/fs/lustre/llite/lnec-XXXXXX/stats`
 
+type LustreCollectorConfig struct {
+	procfiles      []string `json:"procfiles"`
+	ExcludeMetrics []string `json:"exclude_metrics"`
+}
+
 type LustreCollector struct {
 	MetricCollector
+	tags    map[string]string
+	matches map[string]map[string]int
+	devices []string
+	config  LustreCollectorConfig
 }
 
-func (m *LustreCollector) Init() error {
+func (m *LustreCollector) Init(config []byte) error {
+	var err error
 	m.name = "LustreCollector"
-	m.setup()
+	if len(config) > 0 {
-	_, err := ioutil.ReadFile(string(LUSTREFILE))
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
 			return err
 		}
+	}
+	m.setup()
+	m.tags = map[string]string{"type": "node"}
+	m.matches = map[string]map[string]int{"read_bytes": {"read_bytes": 6, "read_requests": 1},
+		"write_bytes":      {"write_bytes": 6, "write_requests": 1},
+		"open":             {"open": 1},
+		"close":            {"close": 1},
+		"setattr":          {"setattr": 1},
+		"getattr":          {"getattr": 1},
+		"statfs":           {"statfs": 1},
+		"inode_permission": {"inode_permission": 1}}
+	m.devices = make([]string, 0)
+	for _, p := range m.config.procfiles {
+		_, err := ioutil.ReadFile(p)
+		if err == nil {
+			m.devices = append(m.devices, p)
+		} else {
+			log.Print(err.Error())
+			continue
+		}
+	}
 
-func (m *LustreCollector) Read(interval time.Duration) {
+	if len(m.devices) == 0 {
-	buffer, err := ioutil.ReadFile(string(LUSTREFILE))
+		return errors.New("No metrics to collect")
+	}
+	m.init = true
+	return nil
+}
+
+func (m *LustreCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
+	if !m.init {
+		return
+	}
+	for _, p := range m.devices {
+		buffer, err := ioutil.ReadFile(p)
 
 		if err != nil {
 			log.Print(err)
@@ -32,31 +78,29 @@ func (m *LustreCollector) Read(interval time.Duration) {
 		for _, line := range strings.Split(string(buffer), "\n") {
 			lf := strings.Fields(line)
 			if len(lf) > 1 {
-			switch lf[0] {
+				for match, fields := range m.matches {
-			case "read_bytes":
+					if lf[0] == match {
-				m.node["read_bytes"], err = strconv.ParseInt(lf[6], 0, 64)
+						for name, idx := range fields {
-				m.node["read_requests"], err = strconv.ParseInt(lf[1], 0, 64)
+							_, skip := stringArrayContains(m.config.ExcludeMetrics, name)
-			case "write_bytes":
+							if skip {
-				m.node["write_bytes"], err = strconv.ParseInt(lf[6], 0, 64)
+								continue
-				m.node["write_requests"], err = strconv.ParseInt(lf[1], 0, 64)
+							}
-			case "open":
+							x, err := strconv.ParseInt(lf[idx], 0, 64)
-				m.node["open"], err = strconv.ParseInt(lf[1], 0, 64)
+							if err == nil {
-			case "close":
+								y, err := lp.New(name, m.tags, map[string]interface{}{"value": x}, time.Now())
-				m.node["close"], err = strconv.ParseInt(lf[1], 0, 64)
+								if err == nil {
-			case "setattr":
+									*out = append(*out, y)
-				m.node["setattr"], err = strconv.ParseInt(lf[1], 0, 64)
+								}
-			case "getattr":
+							}
-				m.node["getattr"], err = strconv.ParseInt(lf[1], 0, 64)
+						}
-			case "statfs":
+					}
-				m.node["statfs"], err = strconv.ParseInt(lf[1], 0, 64)
+				}
-			case "inode_permission":
-				m.node["inode_permission"], err = strconv.ParseInt(lf[1], 0, 64)
 			}
-
 		}
 	}
 }
 
 func (m *LustreCollector) Close() {
+	m.init = false
 	return
 }

collectors/memstatMetric.go

@@ -1,7 +1,10 @@
 package collectors
 
 import (
+	"encoding/json"
 	"errors"
+	"fmt"
+	lp "github.com/influxdata/line-protocol"
 	"io/ioutil"
 	"log"
 	"strconv"
@@ -11,59 +14,116 @@ import (
 
 const MEMSTATFILE = `/proc/meminfo`
 
+type MemstatCollectorConfig struct {
+	ExcludeMetrics []string `json:"exclude_metrics"`
+}
+
 type MemstatCollector struct {
 	MetricCollector
+	stats   map[string]int64
+	tags    map[string]string
+	matches map[string]string
+	config  MemstatCollectorConfig
 }
 
-func (m *MemstatCollector) Init() error {
+func (m *MemstatCollector) Init(config []byte) error {
+	var err error
 	m.name = "MemstatCollector"
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			return err
+		}
+	}
+	m.stats = make(map[string]int64)
+	m.matches = make(map[string]string)
+	m.tags = map[string]string{"type": "node"}
+	matches := map[string]string{`MemTotal`: "mem_total",
+		"SwapTotal":    "swap_total",
+		"SReclaimable": "mem_sreclaimable",
+		"Slab":         "mem_slab",
+		"MemFree":      "mem_free",
+		"Buffers":      "mem_buffers",
+		"Cached":       "mem_cached",
+		"MemAvailable": "mem_available",
+		"SwapFree":     "swap_free"}
+	for k, v := range matches {
+		_, skip := stringArrayContains(m.config.ExcludeMetrics, k)
+		if !skip {
+			m.matches[k] = v
+		}
+	}
+	if len(m.matches) == 0 {
+		return errors.New("No metrics to collect")
+	}
 	m.setup()
-	return nil
+	_, err = ioutil.ReadFile(string(MEMSTATFILE))
+	if err == nil {
+		m.init = true
+	}
+	return err
 }
 
-func (m *MemstatCollector) Read(interval time.Duration) {
+func (m *MemstatCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
-	buffer, err := ioutil.ReadFile(string(MEMSTATFILE))
+	if !m.init {
+		return
+	}
 
+	buffer, err := ioutil.ReadFile(string(MEMSTATFILE))
 	if err != nil {
 		log.Print(err)
 		return
 	}
 
 	ll := strings.Split(string(buffer), "\n")
-	memstats := make(map[string]int64)
-
 	for _, line := range ll {
 		ls := strings.Split(line, `:`)
 		if len(ls) > 1 {
 			lv := strings.Fields(ls[1])
-			memstats[ls[0]], err = strconv.ParseInt(lv[0], 0, 64)
+			m.stats[ls[0]], err = strconv.ParseInt(lv[0], 0, 64)
 		}
 	}
 
-	if _, exists := memstats[`MemTotal`]; !exists {
+	if _, exists := m.stats[`MemTotal`]; !exists {
 		err = errors.New("Parse error")
 		log.Print(err)
 		return
 	}
 
-	m.node["mem_total"] = float64(memstats[`MemTotal`]) * 1.0e-3
+	for match, name := range m.matches {
-	m.node["swap_total"] = float64(memstats[`SwapTotal`]) * 1.0e-3
+		if _, exists := m.stats[match]; !exists {
-	m.node["mem_sreclaimable"] = float64(memstats[`SReclaimable`]) * 1.0e-3
+			err = errors.New(fmt.Sprintf("Parse error for %s : %s", match, name))
-	m.node["mem_slab"] = float64(memstats[`Slab`]) * 1.0e-3
+			log.Print(err)
-	m.node["mem_free"] = float64(memstats[`MemFree`]) * 1.0e-3
+			continue
-	m.node["mem_buffers"] = float64(memstats[`Buffers`]) * 1.0e-3
+		}
-	m.node["mem_cached"] = float64(memstats[`Cached`]) * 1.0e-3
+		y, err := lp.New(name, m.tags, map[string]interface{}{"value": int(float64(m.stats[match]) * 1.0e-3)}, time.Now())
-	m.node["mem_available"] = float64(memstats[`MemAvailable`]) * 1.0e-3
+		if err == nil {
-	m.node["swap_free"] = float64(memstats[`SwapFree`]) * 1.0e-3
+			*out = append(*out, y)
+		}
+	}
 
-	memUsed := memstats[`MemTotal`] - (memstats[`MemFree`] + memstats[`Buffers`] + memstats[`Cached`])
+	if _, free := m.stats[`MemFree`]; free {
-	m.node["mem_used"] = float64(memUsed) * 1.0e-3
+		if _, buffers := m.stats[`Buffers`]; buffers {
-	// In linux-2.5.52 when Memshared was removed
+			if _, cached := m.stats[`Cached`]; cached {
-	if _, found := memstats[`MemShared`]; found {
+				memUsed := m.stats[`MemTotal`] - (m.stats[`MemFree`] + m.stats[`Buffers`] + m.stats[`Cached`])
-		m.node["mem_shared"] = float64(memstats[`MemShared`]) * 1.0e-3
+				_, skip := stringArrayContains(m.config.ExcludeMetrics, "mem_used")
+				y, err := lp.New("mem_used", m.tags, map[string]interface{}{"value": int(float64(memUsed) * 1.0e-3)}, time.Now())
+				if err == nil && !skip {
+					*out = append(*out, y)
+				}
+			}
+		}
+	}
+	if _, found := m.stats[`MemShared`]; found {
+		_, skip := stringArrayContains(m.config.ExcludeMetrics, "mem_shared")
+		y, err := lp.New("mem_shared", m.tags, map[string]interface{}{"value": int(float64(m.stats[`MemShared`]) * 1.0e-3)}, time.Now())
+		if err == nil && !skip {
+			*out = append(*out, y)
+		}
 	}
 }
 
 func (m *MemstatCollector) Close() {
+	m.init = false
 	return
 }

collectors/metricCollector.go

@@ -1,6 +1,8 @@
 package collectors
 
 import (
+	"errors"
+	lp "github.com/influxdata/line-protocol"
 	"io/ioutil"
 	"log"
 	"strconv"
@@ -10,49 +12,21 @@ import (
 
 type MetricGetter interface {
 	Name() string
-	Init() error
+	Init(config []byte) error
-	Read(time.Duration)
+	Read(time.Duration, *[]lp.MutableMetric)
 	Close()
-	GetNodeMetric() map[string]interface{}
-	GetSocketMetrics() map[int]map[string]interface{}
-	GetCpuMetrics() map[int]map[string]interface{}
 }
 
 type MetricCollector struct {
 	name string
-	node    map[string]interface{}
+	init bool
-	sockets map[int]map[string]interface{}
-	cpus    map[int]map[string]interface{}
 }
 
 func (c *MetricCollector) Name() string {
 	return c.name
 }
 
-func (c *MetricCollector) GetNodeMetric() map[string]interface{} {
-	return c.node
-}
-
-func (c *MetricCollector) GetSocketMetrics() map[int]map[string]interface{} {
-	return c.sockets
-}
-
-func (c *MetricCollector) GetCpuMetrics() map[int]map[string]interface{} {
-	return c.cpus
-}
-
 func (c *MetricCollector) setup() error {
-	slist := SocketList()
-	clist := CpuList()
-	c.node = make(map[string]interface{})
-	c.sockets = make(map[int]map[string]interface{}, len(slist))
-	for _, s := range slist {
-		c.sockets[s] = make(map[string]interface{})
-	}
-	c.cpus = make(map[int]map[string]interface{}, len(clist))
-	for _, s := range clist {
-		c.cpus[s] = make(map[string]interface{})
-	}
 	return nil
 }
 
@@ -65,6 +39,15 @@ func intArrayContains(array []int, str int) (int, bool) {
 	return -1, false
 }
 
+func stringArrayContains(array []string, str string) (int, bool) {
+	for i, a := range array {
+		if a == str {
+			return i, true
+		}
+	}
+	return -1, false
+}
+
 func SocketList() []int {
 	buffer, err := ioutil.ReadFile("/proc/cpuinfo")
 	if err != nil {
@@ -114,3 +97,28 @@ func CpuList() []int {
 	}
 	return cpulist
 }
+
+func Tags2Map(metric lp.Metric) map[string]string {
+	tags := make(map[string]string)
+	for _, t := range metric.TagList() {
+		tags[t.Key] = t.Value
+	}
+	return tags
+}
+
+func Fields2Map(metric lp.Metric) map[string]interface{} {
+	fields := make(map[string]interface{})
+	for _, f := range metric.FieldList() {
+		fields[f.Key] = f.Value
+	}
+	return fields
+}
+
+func RemoveFromStringList(s []string, r string) ([]string, error) {
+	for i, item := range s {
+		if r == item {
+			return append(s[:i], s[i+1:]...), nil
+		}
+	}
+	return s, errors.New("No such string in list")
+}

collectors/netstatMetric.go

@@ -1,7 +1,8 @@
 package collectors
 
 import (
-	"fmt"
+	"encoding/json"
+	lp "github.com/influxdata/line-protocol"
 	"io/ioutil"
 	"log"
 	"strconv"
@@ -11,28 +12,43 @@ import (
 
 const NETSTATFILE = `/proc/net/dev`
 
+type NetstatCollectorConfig struct {
+	ExcludeDevices []string `json:"exclude_devices, omitempty"`
+}
+
 type NetstatCollector struct {
 	MetricCollector
+	config  NetstatCollectorConfig
+	matches map[int]string
 }
 
-func (m *NetstatCollector) Init() error {
+func (m *NetstatCollector) Init(config []byte) error {
 	m.name = "NetstatCollector"
 	m.setup()
-	return nil
+	m.matches = map[int]string{
-}
-
-func (m *NetstatCollector) Read(interval time.Duration) {
-	data, err := ioutil.ReadFile(string(NETSTATFILE))
-	if err != nil {
-		log.Print(err.Error())
-		return
-	}
-	var matches = map[int]string{
 		1:  "bytes_in",
 		9:  "bytes_out",
 		2:  "pkts_in",
 		10: "pkts_out",
 	}
+	err := json.Unmarshal(config, &m.config)
+	if err != nil {
+		log.Print(err.Error())
+		return err
+	}
+	_, err = ioutil.ReadFile(string(NETSTATFILE))
+	if err == nil {
+		m.init = true
+	}
+	return nil
+}
+
+func (m *NetstatCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
+	data, err := ioutil.ReadFile(string(NETSTATFILE))
+	if err != nil {
+		log.Print(err.Error())
+		return
+	}
 
 	lines := strings.Split(string(data), "\n")
 	for _, l := range lines {
@@ -41,13 +57,23 @@ func (m *NetstatCollector) Read(interval time.Duration) {
 		}
 		f := strings.Fields(l)
 		dev := f[0][0 : len(f[0])-1]
-		if dev == "lo" {
+		cont := false
+		for _, d := range m.config.ExcludeDevices {
+			if d == dev {
+				cont = true
+			}
+		}
+		if cont {
 			continue
 		}
-		for i, name := range matches {
+		tags := map[string]string{"device": dev, "type": "node"}
+		for i, name := range m.matches {
 			v, err := strconv.ParseInt(f[i], 10, 0)
 			if err == nil {
-				m.node[fmt.Sprintf("%s_%s", dev, name)] = float64(v) * 1.0e-3
+				y, err := lp.New(name, tags, map[string]interface{}{"value": int(float64(v) * 1.0e-3)}, time.Now())
+				if err == nil {
+					*out = append(*out, y)
+				}
 			}
 		}
 	}
@@ -55,5 +81,6 @@ func (m *NetstatCollector) Read(interval time.Duration) {
 }
 
 func (m *NetstatCollector) Close() {
+	m.init = false
 	return
 }

collectors/nvidiaMetric.go

@@ -1,151 +1,274 @@
 package collectors
 
 import (
+	"encoding/json"
 	"errors"
 	"fmt"
 	"github.com/NVIDIA/go-nvml/pkg/nvml"
+	lp "github.com/influxdata/line-protocol"
 	"log"
 	"time"
 )
 
+type NvidiaCollectorConfig struct {
+	ExcludeMetrics []string `json:"exclude_metrics, omitempty"`
+	ExcludeDevices []string `json:"exclude_devices, omitempty"`
+}
+
 type NvidiaCollector struct {
 	MetricCollector
 	num_gpus int
+	config   NvidiaCollectorConfig
 }
 
-func (m *NvidiaCollector) Init() error {
+func (m *NvidiaCollector) CatchPanic() error {
-	m.name = "NvidiaCollector"
+
-	m.setup()
+	if rerr := recover(); rerr != nil {
-	m.num_gpus = 0
+		log.Print("CatchPanic ", string(rerr.(string)))
-	ret := nvml.Init()
+		err := errors.New(rerr.(string))
-	if ret != nvml.SUCCESS {
-		err := errors.New(nvml.ErrorString(ret))
-		log.Print(err)
-		return err
-	}
-	m.num_gpus, ret = nvml.DeviceGetCount()
-	if ret != nvml.SUCCESS {
-		err := errors.New(nvml.ErrorString(ret))
 		return err
 	}
 	return nil
 }
 
-func (m *NvidiaCollector) Read(interval time.Duration) {
+func (m *NvidiaCollector) Init(config []byte) error {
+	var err error
+	m.name = "NvidiaCollector"
+	m.setup()
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			return err
+		}
+	}
+	m.num_gpus = 0
+	defer m.CatchPanic()
+	ret := nvml.Init()
+	if ret != nvml.SUCCESS {
+		err = errors.New(nvml.ErrorString(ret))
+		return err
+	}
+	m.num_gpus, ret = nvml.DeviceGetCount()
+	if ret != nvml.SUCCESS {
+		err = errors.New(nvml.ErrorString(ret))
+		return err
+	}
+	m.init = true
+	return nil
+}
 
+func (m *NvidiaCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
+	if !m.init {
+		return
+	}
 	for i := 0; i < m.num_gpus; i++ {
 		device, ret := nvml.DeviceGetHandleByIndex(i)
 		if ret != nvml.SUCCESS {
 			log.Fatalf("Unable to get device at index %d: %v", i, nvml.ErrorString(ret))
 			return
 		}
-		base := fmt.Sprintf("gpu%d", i)
+		_, skip := stringArrayContains(m.config.ExcludeDevices, fmt.Sprintf("%d", i))
+		if skip {
+			continue
+		}
+		tags := map[string]string{"type": "accelerator", "type-id": fmt.Sprintf("%d", i)}
 
 		util, ret := nvml.DeviceGetUtilizationRates(device)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_util", base)] = float64(util.Gpu)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "util")
-			m.node[fmt.Sprintf("%s_mem_util", base)] = float64(util.Memory)
+			y, err := lp.New("util", tags, map[string]interface{}{"value": float64(util.Gpu)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "mem_util")
+			y, err = lp.New("mem_util", tags, map[string]interface{}{"value": float64(util.Memory)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		meminfo, ret := nvml.DeviceGetMemoryInfo(device)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_mem_total", base)] = float64(meminfo.Total) / (1024 * 1024)
+			t := float64(meminfo.Total) / (1024 * 1024)
-			m.node[fmt.Sprintf("%s_fb_memory", base)] = float64(meminfo.Used) / (1024 * 1024)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "mem_total")
+			y, err := lp.New("mem_total", tags, map[string]interface{}{"value": t}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
+			f := float64(meminfo.Used) / (1024 * 1024)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "fb_memory")
+			y, err = lp.New("fb_memory", tags, map[string]interface{}{"value": f}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		temp, ret := nvml.DeviceGetTemperature(device, nvml.TEMPERATURE_GPU)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_temp", base)] = float64(temp)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "temp")
+			y, err := lp.New("temp", tags, map[string]interface{}{"value": float64(temp)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		fan, ret := nvml.DeviceGetFanSpeed(device)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_fan", base)] = float64(fan)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "fan")
+			y, err := lp.New("fan", tags, map[string]interface{}{"value": float64(fan)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		_, ecc_pend, ret := nvml.DeviceGetEccMode(device)
 		if ret == nvml.SUCCESS {
+			var y lp.MutableMetric
+			var err error
 			switch ecc_pend {
 			case nvml.FEATURE_DISABLED:
-				m.node[fmt.Sprintf("%s_ecc_mode", base)] = string("OFF")
+				y, err = lp.New("ecc_mode", tags, map[string]interface{}{"value": string("OFF")}, time.Now())
 			case nvml.FEATURE_ENABLED:
-				m.node[fmt.Sprintf("%s_ecc_mode", base)] = string("ON")
+				y, err = lp.New("ecc_mode", tags, map[string]interface{}{"value": string("ON")}, time.Now())
 			default:
-				m.node[fmt.Sprintf("%s_ecc_mode", base)] = string("UNKNOWN")
+				y, err = lp.New("ecc_mode", tags, map[string]interface{}{"value": string("UNKNOWN")}, time.Now())
+			}
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "ecc_mode")
+			if err == nil && !skip {
+				*out = append(*out, y)
 			}
 		} else if ret == nvml.ERROR_NOT_SUPPORTED {
-			m.node[fmt.Sprintf("%s_ecc_mode", base)] = string("N/A")
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "ecc_mode")
+			y, err := lp.New("ecc_mode", tags, map[string]interface{}{"value": string("N/A")}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		pstate, ret := nvml.DeviceGetPerformanceState(device)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_perf_state", base)] = fmt.Sprintf("P%d", int(pstate))
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "perf_state")
+			y, err := lp.New("perf_state", tags, map[string]interface{}{"value": fmt.Sprintf("P%d", int(pstate))}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		power, ret := nvml.DeviceGetPowerUsage(device)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_power_usage_report", base)] = float64(power) / 1000
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "power_usage_report")
+			y, err := lp.New("power_usage_report", tags, map[string]interface{}{"value": float64(power) / 1000}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		gclk, ret := nvml.DeviceGetClockInfo(device, nvml.CLOCK_GRAPHICS)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_graphics_clock_report", base)] = float64(gclk)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "graphics_clock_report")
+			y, err := lp.New("graphics_clock_report", tags, map[string]interface{}{"value": float64(gclk)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		smclk, ret := nvml.DeviceGetClockInfo(device, nvml.CLOCK_SM)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_sm_clock_report", base)] = float64(smclk)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "sm_clock_report")
+			y, err := lp.New("sm_clock_report", tags, map[string]interface{}{"value": float64(smclk)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		memclk, ret := nvml.DeviceGetClockInfo(device, nvml.CLOCK_MEM)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_mem_clock_report", base)] = float64(memclk)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "mem_clock_report")
+			y, err := lp.New("mem_clock_report", tags, map[string]interface{}{"value": float64(memclk)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		max_gclk, ret := nvml.DeviceGetMaxClockInfo(device, nvml.CLOCK_GRAPHICS)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_max_graphics_clock", base)] = float64(max_gclk)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "max_graphics_clock")
+			y, err := lp.New("max_graphics_clock", tags, map[string]interface{}{"value": float64(max_gclk)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		max_smclk, ret := nvml.DeviceGetClockInfo(device, nvml.CLOCK_SM)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_max_sm_clock", base)] = float64(max_smclk)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "max_sm_clock")
+			y, err := lp.New("max_sm_clock", tags, map[string]interface{}{"value": float64(max_smclk)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		max_memclk, ret := nvml.DeviceGetClockInfo(device, nvml.CLOCK_MEM)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_max_mem_clock", base)] = float64(max_memclk)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "max_mem_clock")
+			y, err := lp.New("max_mem_clock", tags, map[string]interface{}{"value": float64(max_memclk)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		ecc_db, ret := nvml.DeviceGetTotalEccErrors(device, 1, 1)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_ecc_db_error", base)] = float64(ecc_db)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "ecc_db_error")
+			y, err := lp.New("ecc_db_error", tags, map[string]interface{}{"value": float64(ecc_db)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		ecc_sb, ret := nvml.DeviceGetTotalEccErrors(device, 0, 1)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_ecc_sb_error", base)] = float64(ecc_sb)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "ecc_sb_error")
+			y, err := lp.New("ecc_sb_error", tags, map[string]interface{}{"value": float64(ecc_sb)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		pwr_limit, ret := nvml.DeviceGetPowerManagementLimit(device)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_power_man_limit", base)] = float64(pwr_limit)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "power_man_limit")
+			y, err := lp.New("power_man_limit", tags, map[string]interface{}{"value": float64(pwr_limit)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		enc_util, _, ret := nvml.DeviceGetEncoderUtilization(device)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_power_man_limit", base)] = float64(enc_util)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "encoder_util")
+			y, err := lp.New("encoder_util", tags, map[string]interface{}{"value": float64(enc_util)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 
 		dec_util, _, ret := nvml.DeviceGetDecoderUtilization(device)
 		if ret == nvml.SUCCESS {
-			m.node[fmt.Sprintf("%s_power_man_limit", base)] = float64(dec_util)
+			_, skip = stringArrayContains(m.config.ExcludeMetrics, "decoder_util")
+			y, err := lp.New("decoder_util", tags, map[string]interface{}{"value": float64(dec_util)}, time.Now())
+			if err == nil && !skip {
+				*out = append(*out, y)
+			}
 		}
 	}
 
 }
 
 func (m *NvidiaCollector) Close() {
+	if m.init {
 		nvml.Shutdown()
+		m.init = false
+	}
 	return
 }

collectors/tempMetric.go

@@ -0,0 +1,110 @@
+package collectors
+
+import (
+	"fmt"
+	lp "github.com/influxdata/line-protocol"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"time"
+	"encoding/json"
+)
+
+const HWMON_PATH = `/sys/class/hwmon`
+
+
+type TempCollectorConfig struct {
+	ExcludeMetrics []string `json:"exclude_metrics"`
+	TagOverride map[string]map[string]string `json:"tag_override"`
+}
+
+type TempCollector struct {
+	MetricCollector
+	config TempCollectorConfig
+}
+
+func (m *TempCollector) Init(config []byte) error {
+	m.name = "TempCollector"
+	m.setup()
+	m.init = true
+	if len(config) > 0 {
+		err := json.Unmarshal(config, &m.config)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func get_hwmon_sensors() (map[string]map[string]string, error) {
+	var folders []string
+	var sensors map[string]map[string]string
+	sensors = make(map[string]map[string]string)
+	err := filepath.Walk(HWMON_PATH, func(p string, info os.FileInfo, err error) error {
+		if info.IsDir() {
+			return nil
+		}
+		folders = append(folders, p)
+		return nil
+	})
+	if err != nil {
+		return sensors, err
+	}
+
+	for _, f := range folders {
+		sensors[f] = make(map[string]string)
+		myp := fmt.Sprintf("%s/", f)
+		err := filepath.Walk(myp, func(path string, info os.FileInfo, err error) error {
+			dir, fname := filepath.Split(path)
+			if strings.Contains(fname, "temp") && strings.Contains(fname, "_input") {
+				namefile := fmt.Sprintf("%s/%s", dir, strings.Replace(fname, "_input", "_label", -1))
+				name, ierr := ioutil.ReadFile(namefile)
+				if ierr == nil {
+					sensors[f][strings.Replace(string(name), "\n", "", -1)] = path
+				}
+			}
+			return nil
+		})
+		if err != nil {
+			continue
+		}
+	}
+	return sensors, nil
+}
+
+func (m *TempCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
+
+	sensors, err := get_hwmon_sensors()
+	if err != nil {
+		return
+	}
+	for _, files := range sensors {
+		for name, file := range files {
+			tags := map[string]string{"type": "node"}
+			for key, newtags := range m.config.TagOverride {
+				if strings.Contains(file, key) {
+					tags = newtags
+					break
+				}
+			}
+			buffer, err := ioutil.ReadFile(string(file))
+			if err != nil {
+				continue
+			}
+			x, err := strconv.ParseInt(strings.Replace(string(buffer), "\n", "", -1), 0, 64)
+			if err == nil {
+				y, err := lp.New(strings.ToLower(name), tags, map[string]interface{}{"value": float64(x) / 1000}, time.Now())
+				if err == nil {
+					*out = append(*out, y)
+				}
+			}
+		}
+	}
+}
+
+func (m *TempCollector) Close() {
+	m.init = false
+	return
+}

collectors/topprocsMetric.go

@@ -1,26 +1,56 @@
 package collectors
 
 import (
+	"encoding/json"
+	"errors"
 	"fmt"
+	lp "github.com/influxdata/line-protocol"
 	"log"
 	"os/exec"
 	"strings"
 	"time"
 )
 
-const NUM_PROCS = 5
+const MAX_NUM_PROCS = 10
+
+type TopProcsCollectorConfig struct {
+	num_procs int `json:"num_procs"`
+}
 
 type TopProcsCollector struct {
 	MetricCollector
+	tags   map[string]string
+	config TopProcsCollectorConfig
 }
 
-func (m *TopProcsCollector) Init() error {
+func (m *TopProcsCollector) Init(config []byte) error {
+	var err error
 	m.name = "TopProcsCollector"
+	m.tags = map[string]string{"type": "node"}
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			return err
+		}
+	}
+	if m.config.num_procs <= 0 || m.config.num_procs > MAX_NUM_PROCS {
+		return errors.New(fmt.Sprintf("num_procs option must be set in 'topprocs' config (range: 1-%d)", MAX_NUM_PROCS))
+	}
 	m.setup()
+	command := exec.Command("ps", "-Ao", "comm", "--sort=-pcpu")
+	command.Wait()
+	_, err = command.Output()
+	if err != nil {
+		return errors.New("Failed to execute command")
+	}
+	m.init = true
 	return nil
 }
 
-func (m *TopProcsCollector) Read(interval time.Duration) {
+func (m *TopProcsCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
+	if !m.init {
+		return
+	}
 	command := exec.Command("ps", "-Ao", "comm", "--sort=-pcpu")
 	command.Wait()
 	stdout, err := command.Output()
@@ -30,11 +60,16 @@ func (m *TopProcsCollector) Read(interval time.Duration) {
 	}
 
 	lines := strings.Split(string(stdout), "\n")
-	for i := 1; i < NUM_PROCS+1; i++ {
+	for i := 1; i < m.config.num_procs+1; i++ {
-		m.node[fmt.Sprintf("topproc%d", i)] = lines[i]
+		name := fmt.Sprintf("topproc%d", i)
+		y, err := lp.New(name, m.tags, map[string]interface{}{"value": string(lines[i])}, time.Now())
+		if err == nil {
+			*out = append(*out, y)
+		}
 	}
 }
 
 func (m *TopProcsCollector) Close() {
+	m.init = false
 	return
 }

config.json

@@ -3,23 +3,34 @@
     "user": "testuser",
     "password": "testpass",
     "host": "127.0.0.1",
-        "port": "8087",
+    "port": "9090",
     "database": "testdb",
     "organization": "testorg",
-        "type": "influxdb"
+    "type": "stdout"
   },
   "interval": 3,
   "duration": 1,
   "collectors": [
-        "memstat",
+    "tempstat"
-        "loadavg",
-        "netstat",
-        "ibstat",
-        "lustrestat",
-        "cpustat",
-        "topprocs"
   ],
+  "default_tags": {
+    "cluster": "testcluster"
+  },
   "receiver": {
     "type": "none"
+  },
+  "collect_config": {
+    "tempstat": {
+      "tag_override": {
+        "hwmon0" : {
+            "type" : "socket",
+            "type-id" : "0"
+        },
+        "hwmon1" : {
+            "type" : "socket",
+            "type-id" : "1"
+        }
+      }
+    }
   }
 }

go.mod

@@ -3,6 +3,10 @@ module github.com/ClusterCockpit/cc-metric-collector
 go 1.16
 
 require (
+	github.com/NVIDIA/go-nvml v0.11.1-0 // indirect
 	github.com/influxdata/influxdb-client-go/v2 v2.2.2
 	github.com/influxdata/line-protocol v0.0.0-20210311194329-9aa0e372d097
+	github.com/nats-io/nats.go v1.10.0
+	github.com/nats-io/nkeys v0.1.4 // indirect
+	github.com/prometheus/client_golang v1.10.0 // indirect
 )

go.sum

@@ -1,61 +1,447 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
+github.com/NVIDIA/go-nvml v0.11.1-0 h1:XHSz3zZKC4NCP2ja1rI7++DXFhA+uDhdYa3MykCTGHY=
+github.com/NVIDIA/go-nvml v0.11.1-0/go.mod h1:hy7HYeQy335x6nEss0Ne3PYqleRa6Ct+VKD9RQ4nyFs=
+github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
+github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
+github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
+github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
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 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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 golang.org/x/tools v0.0.0-20191125144606-a911d9008d1f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
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+gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
+gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
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+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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+sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
+sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=

metric-collector.go

@@ -7,6 +7,7 @@ import (
 	"github.com/ClusterCockpit/cc-metric-collector/collectors"
 	"github.com/ClusterCockpit/cc-metric-collector/receivers"
 	"github.com/ClusterCockpit/cc-metric-collector/sinks"
+	lp "github.com/influxdata/line-protocol"
 	"log"
 	"os"
 	"os/signal"
@@ -27,6 +28,10 @@ var Collectors = map[string]collectors.MetricGetter{
 	"cpustat":    &collectors.CpustatCollector{},
 	"topprocs":   &collectors.TopProcsCollector{},
 	"nvidia":     &collectors.NvidiaCollector{},
+	"customcmd":  &collectors.CustomCmdCollector{},
+	"diskstat":   &collectors.DiskstatCollector{},
+	"tempstat":   &collectors.TempCollector{},
+	"ipmistat" :  &collectors.IpmiCollector{},
 }
 
 var Sinks = map[string]sinks.SinkFuncs{
@@ -34,6 +39,7 @@ var Sinks = map[string]sinks.SinkFuncs{
 	"stdout":   &sinks.StdoutSink{},
 	"nats":     &sinks.NatsSink{},
 	"sqlite3":  &sinks.SqliteSink{},
+	"http":     &sinks.HttpSink{},
 }
 
 var Receivers = map[string]receivers.ReceiverFuncs{
@@ -47,6 +53,8 @@ type GlobalConfig struct {
 	Duration       int                        `json:"duration"`
 	Collectors     []string                   `json:"collectors"`
 	Receiver       receivers.ReceiverConfig   `json:"receiver"`
+	DefTags        map[string]string          `json:"default_tags"`
+	CollectConfigs map[string]json.RawMessage `json:"collect_config"`
 }
 
 // Load JSON configuration file
@@ -58,7 +66,7 @@ func LoadConfiguration(file string, config *GlobalConfig) error {
 		return err
 	}
 	jsonParser := json.NewDecoder(configFile)
-	jsonParser.Decode(config)
+	err = jsonParser.Decode(config)
 	return err
 }
 
@@ -66,10 +74,18 @@ func ReadCli() map[string]string {
 	var m map[string]string
 	cfg := flag.String("config", "./config.json", "Path to configuration file")
 	logfile := flag.String("log", "stderr", "Path for logfile")
+	pidfile := flag.String("pidfile", "/var/run/cc-metric-collector.pid", "Path for PID file")
+	once := flag.Bool("once", false, "Run all collectors only once")
 	flag.Parse()
 	m = make(map[string]string)
 	m["configfile"] = *cfg
 	m["logfile"] = *logfile
+	m["pidfile"] = *pidfile
+	if *once {
+		m["once"] = "true"
+	} else {
+		m["once"] = "false"
+	}
 	return m
 }
 
@@ -89,16 +105,29 @@ func SetLogging(logfile string) error {
 	return nil
 }
 
-// Register an interrupt handler for Ctrl+C and similar. At signal,
+func CreatePidfile(pidfile string) error {
-// all collectors are closed
+	file, err := os.OpenFile(pidfile, os.O_CREATE|os.O_RDWR, 0600)
-func shutdown(wg *sync.WaitGroup, config *GlobalConfig, sink sinks.SinkFuncs, recv receivers.ReceiverFuncs) {
+	if err != nil {
-	sigs := make(chan os.Signal, 1)
+		log.Print(err)
-	signal.Notify(sigs, os.Interrupt)
+		return err
+	}
+	file.Write([]byte(fmt.Sprintf("%d", os.Getpid())))
+	file.Close()
+	return nil
+}
 
-	go func(wg *sync.WaitGroup) {
+func RemovePidfile(pidfile string) error {
-		<-sigs
+	info, err := os.Stat(pidfile)
+	if !os.IsNotExist(err) && !info.IsDir() {
+		os.Remove(pidfile)
+	}
+	return nil
+}
+
+// General shutdown function that gets executed in case of interrupt or graceful shutdown
+func shutdown(wg *sync.WaitGroup, collectors []string, sink sinks.SinkFuncs, recv receivers.ReceiverFuncs, pidfile string) {
 	log.Print("Shutdown...")
-		for _, c := range config.Collectors {
+	for _, c := range collectors {
 		col := Collectors[c]
 		log.Print("Stop ", col.Name())
 		col.Close()
@@ -108,7 +137,20 @@ func shutdown(wg *sync.WaitGroup, config *GlobalConfig, sink sinks.SinkFuncs, re
 		recv.Close()
 	}
 	sink.Close()
+	RemovePidfile(pidfile)
 	wg.Done()
+}
+
+// Register an interrupt handler for Ctrl+C and similar. At signal,
+// all collectors are closed
+func prepare_shutdown(wg *sync.WaitGroup, config *GlobalConfig, sink sinks.SinkFuncs, recv receivers.ReceiverFuncs, pidfile string) {
+	sigs := make(chan os.Signal, 1)
+	signal.Notify(sigs, os.Interrupt)
+
+	go func(wg *sync.WaitGroup) {
+		<-sigs
+		log.Print("Shutdown...")
+		shutdown(wg, config.Collectors, sink, recv, pidfile)
 	}(wg)
 }
 
@@ -125,9 +167,10 @@ func main() {
 		return
 	}
 	clicfg := ReadCli()
+	err = CreatePidfile(clicfg["pidfile"])
 	err = SetLogging(clicfg["logfile"])
 	if err != nil {
-		log.Print("Error setting up logging system to ", clicfg["logfile"])
+		log.Print("Error setting up logging system to ", clicfg["logfile"], " on ", host)
 		return
 	}
 
@@ -135,6 +178,7 @@ func main() {
 	err = LoadConfiguration(clicfg["configfile"], &config)
 	if err != nil {
 		log.Print("Error reading configuration file ", clicfg["configfile"])
+		log.Print(err.Error())
 		return
 	}
 	if config.Interval <= 0 || time.Duration(config.Interval)*time.Second <= 0 {
@@ -187,43 +231,38 @@ func main() {
 	}
 
 	// Register interrupt handler
-	shutdown(&wg, &config, sink, recv)
+	prepare_shutdown(&wg, &config, sink, recv, clicfg["pidfile"])
 
 	// Initialize all collectors
 	tmp := make([]string, 0)
 	for _, c := range config.Collectors {
 		col := Collectors[c]
-		err = col.Init()
+		conf, found := config.CollectConfigs[c]
+		if !found {
+			conf = json.RawMessage("")
+		}
+		err = col.Init([]byte(conf))
 		if err != nil {
-			log.Print("SKIP ", col.Name())
+			log.Print("SKIP ", col.Name(), " (", err.Error(), ")")
 		} else {
 			log.Print("Start ", col.Name())
 			tmp = append(tmp, c)
 		}
 	}
 	config.Collectors = tmp
+	config.DefTags["hostname"] = host
 
 	// Setup up ticker loop
+	if clicfg["once"] != "true" {
 		log.Print("Running loop every ", time.Duration(config.Interval)*time.Second)
+	} else {
+		log.Print("Running loop only once")
+	}
 	ticker := time.NewTicker(time.Duration(config.Interval) * time.Second)
 	done := make(chan bool)
 
 	// Storage for all node metrics
-	nodeFields := make(map[string]interface{})
+	tmpPoints := make([]lp.MutableMetric, 0)
-
-	// Storage for all socket metrics
-	slist := collectors.SocketList()
-	socketsFields := make(map[int]map[string]interface{}, len(slist))
-	for _, s := range slist {
-		socketsFields[s] = make(map[string]interface{})
-	}
-
-	// Storage for all CPU metrics
-	clist := collectors.CpuList()
-	cpuFields := make(map[int]map[string]interface{}, len(clist))
-	for _, s := range clist {
-		cpuFields[s] = make(map[string]interface{})
-	}
 
 	// Start receiver
 	if use_recv {
@@ -236,54 +275,33 @@ func main() {
 			case <-done:
 				return
 			case t := <-ticker.C:
-				// Count how many socket and cpu metrics are returned
-				scount := 0
-				ccount := 0
 
 				// Read all collectors are sort the results in the right
 				// storage locations
 				for _, c := range config.Collectors {
 					col := Collectors[c]
-					col.Read(time.Duration(config.Duration))
+					col.Read(time.Duration(config.Duration), &tmpPoints)
 
-					for key, val := range col.GetNodeMetric() {
+					for {
-						nodeFields[key] = val
+						if len(tmpPoints) == 0 {
+							break
 						}
-					for sid, socket := range col.GetSocketMetrics() {
+						p := tmpPoints[0]
-						for key, val := range socket {
+						for k, v := range config.DefTags {
-							socketsFields[sid][key] = val
+							p.AddTag(k, v)
-							scount++
+							p.SetTime(t)
-						}
-					}
-					for cid, cpu := range col.GetCpuMetrics() {
-						for key, val := range cpu {
-							cpuFields[cid][key] = val
-							ccount++
 						}
+						sink.Write(p)
+						tmpPoints = tmpPoints[1:]
 					}
 				}
 
-				// Send out node metrics
+				if err := sink.Flush(); err != nil {
-				if len(nodeFields) > 0 {
+					log.Printf("sink error: %s\n", err)
-					sink.Write("node", map[string]string{"host": host}, nodeFields, t)
-				}
-
-				// Send out socket metrics (if any)
-				if scount > 0 {
-					for sid, socket := range socketsFields {
-						if len(socket) > 0 {
-							sink.Write("socket", map[string]string{"socket": fmt.Sprintf("%d", sid), "host": host}, socket, t)
-						}
-					}
-				}
-
-				// Send out CPU metrics (if any)
-				if ccount > 0 {
-					for cid, cpu := range cpuFields {
-						if len(cpu) > 0 {
-							sink.Write("cpu", map[string]string{"cpu": fmt.Sprintf("%d", cid), "host": host}, cpu, t)
-						}
 				}
+				if clicfg["once"] == "true" {
+					shutdown(&wg, config.Collectors, sink, recv, clicfg["pidfile"])
+					return
 				}
 			}
 		}

receivers/natsReceiver.go

@@ -3,7 +3,7 @@ package receivers
 import (
 	"errors"
 	s "github.com/ClusterCockpit/cc-metric-collector/sinks"
-	protocol "github.com/influxdata/line-protocol"
+	lp "github.com/influxdata/line-protocol"
 	nats "github.com/nats-io/nats.go"
 	"log"
 	"time"
@@ -12,6 +12,8 @@ import (
 type NatsReceiver struct {
 	Receiver
 	nc      *nats.Conn
+	handler *lp.MetricHandler
+	parser  *lp.Parser
 }
 
 var DefaultTime = func() time.Time {
@@ -42,6 +44,9 @@ func (r *NatsReceiver) Init(config ReceiverConfig, sink s.SinkFuncs) error {
 		log.Print(err)
 		r.nc = nil
 	}
+	r.handler = lp.NewMetricHandler()
+	r.parser = lp.NewParser(r.handler)
+	r.parser.SetTimeFunc(DefaultTime)
 	return err
 }
 
@@ -51,15 +56,13 @@ func (r *NatsReceiver) Start() {
 }
 
 func (r *NatsReceiver) _NatsReceive(m *nats.Msg) {
-	handler := protocol.NewMetricHandler()
+	metrics, err := r.parser.Parse(m.Data)
-	parser := protocol.NewParser(handler)
-	parser.SetTimeFunc(DefaultTime)
-	metrics, err := parser.Parse(m.Data)
 	if err == nil {
 		for _, m := range metrics {
-			tags := Tags2Map(m)
+			y, err := lp.New(m.Name(), Tags2Map(m), Fields2Map(m), m.Time())
-			fields := Fields2Map(m)
+			if err == nil {
-			r.sink.Write(m.Name(), tags, fields, m.Time())
+				r.sink.Write(y)
+			}
 		}
 	}
 }

scripts/cc-metric-collector.config

@@ -0,0 +1,20 @@
+CC_USER=clustercockpit
+
+CC_GROUP=clustercockpit
+
+CC_HOME=/tmp
+
+LOG_DIR=/var/log
+
+DATA_DIR=/var/lib/grafana
+
+MAX_OPEN_FILES=10000
+
+CONF_DIR=/etc/cc-metric-collector
+
+CONF_FILE=/etc/cc-metric-collector/cc-metric-collector.json
+
+RESTART_ON_UPGRADE=true
+
+# Only used on systemd systems
+PID_FILE_DIR=/var/run

scripts/cc-metric-collector.init

@@ -0,0 +1,140 @@
+#! /usr/bin/env bash
+
+# chkconfig: 2345 80 05
+# description: ClusterCockpit metric collector
+# processname: cc-metric-collector
+# config: /etc/default/cc-metric-collector
+# pidfile: /var/run/cc-metric-collector.pid
+
+### BEGIN INIT INFO
+# Provides:          cc-metric-collector
+# Required-Start:    $all
+# Required-Stop:     $remote_fs $syslog
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: Start ClusterCockpit metric collector at boot time
+### END INIT INFO
+
+
+PATH=/bin:/usr/bin:/sbin:/usr/sbin
+NAME=cc-metric-collector
+DESC="ClusterCockpit metric collector"
+DEFAULT=/etc/default/${NAME}.json
+
+CC_USER=clustercockpit
+CC_GROUP=clustercockpit
+CONF_DIR=/etc/cc-metric-collector
+PID_FILE=/var/run/$NAME.pid
+DAEMON=/usr/sbin/$NAME
+CONF_FILE=${CONF_DIR}/cc-metric-collector.json
+
+umask 0027
+
+if [ ! -x $DAEMON ]; then
+  echo "Program not installed or not executable"
+  exit 5
+fi
+
+. /lib/lsb/init-functions
+
+if [ -r /etc/default/rcS ]; then
+	. /etc/default/rcS
+fi
+
+# overwrite settings from default file
+if [ -f "$DEFAULT" ]; then
+	. "$DEFAULT"
+fi
+
+CC_OPTS="--config=${CONF_FILE}"
+
+function checkUser() {
+  if [ `id -u` -ne 0 ]; then
+  	echo "You need root privileges to run this script"
+  	exit 4
+  fi
+}
+
+case "$1" in
+  start)
+  checkUser
+	log_daemon_msg "Starting $DESC"
+
+	pid=`pidofproc -p $PID_FILE $NAME`
+	if [ -n "$pid" ] ; then
+		log_begin_msg "Already running."
+		log_end_msg 0
+		exit 0
+	fi
+
+	# Prepare environment
+	touch "$PID_FILE" && chown "$CC_USER":"$CC_GROUP" "$PID_FILE"
+
+  if [ -n "$MAX_OPEN_FILES" ]; then
+		ulimit -n $MAX_OPEN_FILES
+	fi
+
+	# Start Daemon
+	start-stop-daemon --start -b --chdir "$WORK_DIR" --user "$CC_USER" -c "$CC_USER" --pidfile "$PID_FILE" --exec $DAEMON -- $DAEMON_OPTS
+	return=$?
+	if [ $return -eq 0 ]
+	then
+	  sleep 1
+
+    # check if pid file has been written to
+	  if ! [[ -s $PID_FILE ]]; then
+	    log_end_msg 1
+	    exit 1
+	  fi
+
+		i=0
+		timeout=10
+		# Wait for the process to be properly started before exiting
+		until { cat "$PID_FILE" | xargs kill -0; } >/dev/null 2>&1
+		do
+			sleep 1
+			i=$(($i + 1))
+      if [ $i -gt $timeout ]; then
+			  log_end_msg 1
+			  exit 1
+			fi
+		done
+  fi
+  log_end_msg $return
+	;;
+  stop)
+  checkUser
+	log_daemon_msg "Stopping $DESC"
+
+	if [ -f "$PID_FILE" ]; then
+		start-stop-daemon --stop --pidfile "$PID_FILE" \
+			--user "$CC_USER" \
+			--retry=TERM/20/KILL/5 >/dev/null
+		if [ $? -eq 1 ]; then
+			log_progress_msg "$DESC is not running but pid file exists, cleaning up"
+		elif [ $? -eq 3 ]; then
+			PID="`cat $PID_FILE`"
+			log_failure_msg "Failed to stop $DESC (pid $PID)"
+			exit 1
+		fi
+		rm -f "$PID_FILE"
+	else
+		log_progress_msg "(not running)"
+	fi
+	log_end_msg 0
+	;;
+  status)
+	status_of_proc -p $PID_FILE $NAME $NAME && exit 0 || exit $?
+    ;;
+  restart|force-reload)
+	if [ -f "$PID_FILE" ]; then
+		$0 stop
+		sleep 1
+	fi
+	$0 start
+	;;
+  *)
+	log_success_msg "Usage: $0 {start|stop|restart|force-reload|status}"
+	exit 3
+	;;
+esac

scripts/cc-metric-collector.service

@@ -0,0 +1,27 @@
+[Unit]
+Description=ClusterCockpit metric collector
+Documentation=https://github.com/ClusterCockpit/cc-metric-collector
+Wants=network-online.target
+After=network-online.target
+After=postgresql.service mariadb.service mysql.service
+
+[Service]
+EnvironmentFile=/etc/default/cc-metric-collector
+User=clustercockpit
+Group=clustercockpit
+Type=simple
+Restart=on-failure
+WorkingDirectory=/tmp
+RuntimeDirectory=cc-metric-collector
+RuntimeDirectoryMode=0750
+ExecStart=/usr/sbin/cc-metric-collector                                             \
+                            --config=${CONF_FILE}                                   \
+                            --pidfile=${PID_FILE_DIR}/cc-metric-collector.pid
+
+
+LimitNOFILE=10000
+TimeoutStopSec=20
+UMask=0027
+
+[Install]
+WantedBy=multi-user.target

scripts/cc-metric-collector.spec

@@ -0,0 +1,51 @@
+Name:           cc-metric-collector
+Version:        0.1
+Release:        1%{?dist}
+Summary:        Metric collection daemon from the ClusterCockpit suite
+
+License:        MIT
+Source0:        %{name}-%{version}.tar.gz
+
+BuildRequires:  golang
+
+Provides:       %{name} = %{version}
+
+%description
+A simple web app
+
+%global debug_package %{nil}
+
+%prep
+%autosetup
+
+
+%build
+cd collectors
+make
+go build -v -o %{name}
+
+
+%install
+install -Dpm 0755 %{name} %{buildroot}%{_bindir}/%{name}
+install -Dpm 0755 config.json %{buildroot}%{_sysconfdir}/%{name}/config.json
+install -Dpm 644 scripts/%{name}.service %{buildroot}%{_unitdir}/%{name}.service
+
+%check
+# go test should be here... :)
+
+%post
+%systemd_post %{name}.service
+
+%preun
+%systemd_preun %{name}.service
+
+%files
+%dir %{_sysconfdir}/%{name}
+%{_bindir}/%{name}
+%{_unitdir}/%{name}.service
+%config(noreplace) %{_sysconfdir}/%{name}/config.json
+
+
+%changelog
+* Mon Nov 22 2021 Thomas Gruber - 0.1
+- Initial spec file

sinks/README.md

@@ -5,9 +5,10 @@ The base class/configuration is located in `metricSink.go`.
 
 # Sinks
 * `stdoutSink.go`: Writes all metrics to `stdout` in InfluxDB line protocol. The sink does not use https://github.com/influxdata/line-protocol to reduce the executed code for debugging
-* `influxSink.go`: Writes all metrics to an InfluxDB database instance using a blocking writer. It uses https://github.com/influxdata/influxdb-client-go . Configuration for the server, port, user, password and database name are in the global configuration file
+* `influxSink.go`: Writes all metrics to an InfluxDB database instance using a blocking writer. It uses https://github.com/influxdata/influxdb-client-go . Configuration for the server, port, ssl, password, database name and organisation are in the global configuration file. The 'password' is used for the token and the 'database' for the bucket. It uses the v2 API of Influx.
 * `natsSink.go`: Sends all metrics to an NATS server using the InfluxDB line protocol as encoding. It uses https://github.com/nats-io/nats.go . Configuration for the server, port, user, password and database name are in the global configuration file. The database name is used as subject for the NATS messages.
 * `sqliteSink.go`: Writes all metrics to a Sqlite3 database. It uses https://github.com/mattn/go-sqlite3
+* `httpSink.go`: Sends all metrics to an HTTP endpoint `http://<host>:<port>/<database>` using a POST request. The body of the request will consist of lines in the InfluxDB line protocol. In case password is specified, that password is used as a JWT in the 'Authorization' header.
 
 # Installation
 Nothing to do, all sinks are pure Go code

sinks/httpSink.go

@@ -0,0 +1,68 @@
+package sinks
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"net/http"
+	"time"
+
+	lp "github.com/influxdata/line-protocol"
+)
+
+type HttpSink struct {
+	Sink
+	client   *http.Client
+	url, jwt string
+	encoder  *lp.Encoder
+	buffer   *bytes.Buffer
+}
+
+func (s *HttpSink) Init(config SinkConfig) error {
+	if len(config.Host) == 0 || len(config.Port) == 0 {
+		return errors.New("`host`, `port` and `database` config options required for TCP sink")
+	}
+
+	s.client = &http.Client{}
+	s.url = fmt.Sprintf("http://%s:%s/%s", config.Host, config.Port, config.Database)
+	s.port = config.Port
+	s.jwt = config.Password
+	s.buffer = &bytes.Buffer{}
+	s.encoder = lp.NewEncoder(s.buffer)
+	s.encoder.SetPrecision(time.Second)
+
+	return nil
+}
+
+func (s *HttpSink) Write(point lp.MutableMetric) error {
+	_, err := s.encoder.Encode(point)
+	return err
+}
+
+func (s *HttpSink) Flush() error {
+	req, err := http.NewRequest(http.MethodPost, s.url, s.buffer)
+	if err != nil {
+		return err
+	}
+
+	if len(s.jwt) != 0 {
+		req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", s.jwt))
+	}
+
+	res, err := s.client.Do(req)
+	s.buffer.Reset()
+
+	if err != nil {
+		return err
+	}
+
+	if res.StatusCode != 200 {
+		return errors.New(res.Status)
+	}
+
+	return nil
+}
+
+func (s *HttpSink) Close() {
+	s.client.CloseIdleConnections()
+}

sinks/influxSink.go

@@ -2,12 +2,14 @@ package sinks
 
 import (
 	"context"
+	"crypto/tls"
 	"errors"
 	"fmt"
+
 	influxdb2 "github.com/influxdata/influxdb-client-go/v2"
 	influxdb2Api "github.com/influxdata/influxdb-client-go/v2/api"
+	lp "github.com/influxdata/line-protocol"
 	"log"
-	"time"
 )
 
 type InfluxSink struct {
@@ -19,14 +21,20 @@ type InfluxSink struct {
 
 func (s *InfluxSink) connect() error {
 	var auth string
-	uri := fmt.Sprintf("http://%s:%s", s.host, s.port)
+	var uri string
+	if s.ssl {
+		uri = fmt.Sprintf("https://%s:%s", s.host, s.port)
+	} else {
+		uri = fmt.Sprintf("http://%s:%s", s.host, s.port)
+	}
 	if len(s.user) == 0 {
 		auth = s.password
 	} else {
 		auth = fmt.Sprintf("%s:%s", s.user, s.password)
 	}
 	log.Print("Using URI ", uri, " Org ", s.organization, " Bucket ", s.database)
-	s.client = influxdb2.NewClient(uri, auth)
+	s.client = influxdb2.NewClientWithOptions(uri, auth,
+		influxdb2.DefaultOptions().SetTLSConfig(&tls.Config{InsecureSkipVerify: true}))
 	s.writeApi = s.client.WriteAPIBlocking(s.organization, s.database)
 	return nil
 }
@@ -45,15 +53,28 @@ func (s *InfluxSink) Init(config SinkConfig) error {
 	s.organization = config.Organization
 	s.user = config.User
 	s.password = config.Password
+	s.ssl = config.SSL
 	return s.connect()
 }
 
-func (s *InfluxSink) Write(measurement string, tags map[string]string, fields map[string]interface{}, t time.Time) error {
+func (s *InfluxSink) Write(point lp.MutableMetric) error {
-	p := influxdb2.NewPoint(measurement, tags, fields, t)
+	tags := map[string]string{}
+	fields := map[string]interface{}{}
+	for _, t := range point.TagList() {
+		tags[t.Key] = t.Value
+	}
+	for _, f := range point.FieldList() {
+		fields[f.Key] = f.Value
+	}
+	p := influxdb2.NewPoint(point.Name(), tags, fields, point.Time())
 	err := s.writeApi.WritePoint(context.Background(), p)
 	return err
 }
 
+func (s *InfluxSink) Flush() error {
+	return nil
+}
+
 func (s *InfluxSink) Close() {
 	log.Print("Closing InfluxDB connection")
 	s.client.Close()

sinks/metricSink.go

@@ -1,7 +1,8 @@
 package sinks
 
 import (
-	"time"
+	//	"time"
+	lp "github.com/influxdata/line-protocol"
 )
 
 type SinkConfig struct {
@@ -12,6 +13,7 @@ type SinkConfig struct {
 	Password     string `json:"password"`
 	Organization string `json:"organization"`
 	Type         string `json:"type"`
+	SSL          bool   `json:"ssl"`
 }
 
 type Sink struct {
@@ -21,10 +23,12 @@ type Sink struct {
 	password     string
 	database     string
 	organization string
+	ssl          bool
 }
 
 type SinkFuncs interface {
 	Init(config SinkConfig) error
-	Write(measurement string, tags map[string]string, fields map[string]interface{}, t time.Time) error
+	Write(point lp.MutableMetric) error
+	Flush() error
 	Close()
 }

sinks/natsSink.go

@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
-	protocol "github.com/influxdata/line-protocol"
+	lp "github.com/influxdata/line-protocol"
 	nats "github.com/nats-io/nats.go"
 	"log"
 	"time"
@@ -13,7 +13,7 @@ import (
 type NatsSink struct {
 	Sink
 	client  *nats.Conn
-	encoder *protocol.Encoder
+	encoder *lp.Encoder
 	buffer  *bytes.Buffer
 }
 
@@ -46,31 +46,43 @@ func (s *NatsSink) Init(config SinkConfig) error {
 	// Setup Influx line protocol
 	s.buffer = &bytes.Buffer{}
 	s.buffer.Grow(1025)
-	s.encoder = protocol.NewEncoder(s.buffer)
+	s.encoder = lp.NewEncoder(s.buffer)
 	s.encoder.SetPrecision(time.Second)
 	s.encoder.SetMaxLineBytes(1024)
 	// Setup infos for connection
 	return s.connect()
 }
 
-func (s *NatsSink) Write(measurement string, tags map[string]string, fields map[string]interface{}, t time.Time) error {
+func (s *NatsSink) Write(point lp.MutableMetric) error {
 	if s.client != nil {
-		m, err := protocol.New(measurement, tags, fields, t)
+		//	    var tags map[string]string
-		if err != nil {
+		//        var fields map[string]interface{}
-			log.Print(err)
+		//        for _, t := range point.TagList() {
-			return err
+		//            tags[t.Key] = t.Value
-		}
+		//        }
-		_, err = s.encoder.Encode(m)
+		//        for _, f := range point.FieldList() {
+		//            fields[f.Key] = f.Value
+		//        }
+		//		m, err := protocol.New(point.Name(), tags, fields, point.Time())
+		//		if err != nil {
+		//			log.Print(err)
+		//			return err
+		//		}
+		_, err := s.encoder.Encode(point)
 		if err != nil {
 			log.Print(err)
 			return err
 		}
 		s.client.Publish(s.database, s.buffer.Bytes())
-
+		s.buffer.Reset()
 	}
 	return nil
 }
 
+func (s *NatsSink) Flush() error {
+	return nil
+}
+
 func (s *NatsSink) Close() {
 	log.Print("Closing Nats connection")
 	if s.client != nil {

sinks/stdoutSink.go

@@ -4,7 +4,9 @@ import (
 	"fmt"
 	"math"
 	"strings"
-	"time"
+
+	//	"time"
+	lp "github.com/influxdata/line-protocol"
 )
 
 type StdoutSink struct {
@@ -15,30 +17,48 @@ func (s *StdoutSink) Init(config SinkConfig) error {
 	return nil
 }
 
-func (s *StdoutSink) Write(measurement string, tags map[string]string, fields map[string]interface{}, t time.Time) error {
+func (s *StdoutSink) Write(point lp.MutableMetric) error {
 	var tagsstr []string
 	var fieldstr []string
-	for k, v := range tags {
+	for _, t := range point.TagList() {
-		tagsstr = append(tagsstr, fmt.Sprintf("%s=%s", k, v))
+		tagsstr = append(tagsstr, fmt.Sprintf("%s=%s", t.Key, t.Value))
 	}
-	for k, v := range fields {
+	for _, f := range point.FieldList() {
-		switch v.(type) {
+		switch f.Value.(type) {
 		case float64:
-			if !math.IsNaN(v.(float64)) {
+			if !math.IsNaN(f.Value.(float64)) {
-				fieldstr = append(fieldstr, fmt.Sprintf("%s=%v", k, v.(float64)))
+				fieldstr = append(fieldstr, fmt.Sprintf("%s=%v", f.Key, f.Value.(float64)))
+			} else {
+				fieldstr = append(fieldstr, fmt.Sprintf("%s=0.0", f.Key))
 			}
+		case float32:
+			if !math.IsNaN(float64(f.Value.(float32))) {
+				fieldstr = append(fieldstr, fmt.Sprintf("%s=%v", f.Key, f.Value.(float32)))
+			} else {
+				fieldstr = append(fieldstr, fmt.Sprintf("%s=0.0", f.Key))
+			}
+		case int:
+			fieldstr = append(fieldstr, fmt.Sprintf("%s=%d", f.Key, f.Value.(int)))
+		case int64:
+			fieldstr = append(fieldstr, fmt.Sprintf("%s=%d", f.Key, f.Value.(int64)))
 		case string:
-			fieldstr = append(fieldstr, fmt.Sprintf("%s=%q", k, v.(string)))
+			fieldstr = append(fieldstr, fmt.Sprintf("%s=%q", f.Key, f.Value.(string)))
+		default:
+			fieldstr = append(fieldstr, fmt.Sprintf("%s=%v", f.Key, f.Value))
 		}
 	}
 	if len(tagsstr) > 0 {
-		fmt.Printf("%s,%s %s %d\n", measurement, strings.Join(tagsstr, ","), strings.Join(fieldstr, ","), t.Unix())
+		fmt.Printf("%s,%s %s %d\n", point.Name(), strings.Join(tagsstr, ","), strings.Join(fieldstr, ","), point.Time().Unix())
 	} else {
-		fmt.Printf("%s %s %d\n", measurement, strings.Join(fieldstr, ","), t.Unix())
+		fmt.Printf("%s %s %d\n", point.Name(), strings.Join(fieldstr, ","), point.Time().Unix())
 	}
 	return nil
 }
 
+func (s *StdoutSink) Flush() error {
+	return nil
+}
+
 func (s *StdoutSink) Close() {
 	return
 }