mirror of
https://github.com/ClusterCockpit/cc-metric-collector.git
synced 2024-12-26 15:29:04 +01:00
200af84c54
* Use channels, add a metric router, split up configuration and use extended version of Influx line protocol internally * Use central timer for collectors and router. Add expressions to router * Add expression to router config * Update entry points * Start with README * Update README for CCMetric * Formatting * Update README.md * Add README for MultiChanTicker * Add README for MultiChanTicker * Update README.md * Add README to metric router * Update main README * Remove SinkEntity type * Update README for sinks * Update go files * Update README for receivers * Update collectors README * Update collectors README * Use seperate page per collector * Fix for tempstat page * Add docs for customcmd collector * Add docs for ipmistat collector * Add docs for topprocs collector * Update customCmdMetric.md * Use seconds when calculating LIKWID metrics * Add IB metrics ib_recv_pkts and ib_xmit_pkts * Drop domain part of host name * Updated to latest stable version of likwid * Define source code dependencies in Makefile * Add GPFS / IBM Spectrum Scale collector * Add vet and staticcheck make targets * Add vet and staticcheck make targets * Avoid go vet warning: struct field tag `json:"..., omitempty"` not compatible with reflect.StructTag.Get: suspicious space in struct tag value struct field tag `json:"...", omitempty` not compatible with reflect.StructTag.Get: key:"value" pairs not separated by spaces * Add sample collector to README.md * Add CPU frequency collector * Avoid staticcheck warning: redundant return statement * Avoid staticcheck warning: unnecessary assignment to the blank identifier * Simplified code * Add CPUFreqCollectorCpuinfo a metric collector to measure the current frequency of the CPUs as obtained from /proc/cpuinfo Only measure on the first hyperthread * Add collector for NFS clients * Move publication of metrics into Flush() for NatsSink * Update GitHub actions * Refactoring * Avoid vet warning: Println arg list ends with redundant newline * Avoid vet warning struct field commands has json tag but is not exported * Avoid vet warning: return copies lock value. * Corrected typo * Refactoring * Add go sources in internal/... * Bad separator in Makefile * Fix Infiniband collector Co-authored-by: Holger Obermaier <40787752+ho-ob@users.noreply.github.com>
92 lines
1.9 KiB
Go
92 lines
1.9 KiB
Go
package receivers
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import (
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"errors"
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"fmt"
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lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
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influx "github.com/influxdata/line-protocol"
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nats "github.com/nats-io/nats.go"
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"log"
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"time"
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)
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type NatsReceiverConfig struct {
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Addr string `json:"address"`
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Port string `json:"port"`
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Database string `json:"database"`
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}
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type NatsReceiver struct {
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receiver
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nc *nats.Conn
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handler *influx.MetricHandler
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parser *influx.Parser
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meta map[string]string
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config ReceiverConfig
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}
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var DefaultTime = func() time.Time {
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return time.Unix(42, 0)
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}
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func (r *NatsReceiver) Init(config ReceiverConfig) error {
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r.name = "NatsReceiver"
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r.config = config
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if len(r.config.Addr) == 0 ||
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len(r.config.Port) == 0 ||
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len(r.config.Database) == 0 {
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return errors.New("Not all configuration variables set required by NatsReceiver")
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}
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r.meta = map[string]string{"source": r.name}
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r.addr = r.config.Addr
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if len(r.addr) == 0 {
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r.addr = nats.DefaultURL
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}
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r.port = r.config.Port
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if len(r.port) == 0 {
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r.port = "4222"
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}
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log.Print("[NatsReceiver] INIT")
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uri := fmt.Sprintf("%s:%s", r.addr, r.port)
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nc, err := nats.Connect(uri)
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if err == nil {
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r.database = r.config.Database
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r.nc = nc
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} else {
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r.nc = nil
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return err
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}
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r.handler = influx.NewMetricHandler()
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r.parser = influx.NewParser(r.handler)
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r.parser.SetTimeFunc(DefaultTime)
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return err
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}
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func (r *NatsReceiver) Start() {
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log.Print("[NatsReceiver] START")
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r.nc.Subscribe(r.database, r._NatsReceive)
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}
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func (r *NatsReceiver) _NatsReceive(m *nats.Msg) {
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metrics, err := r.parser.Parse(m.Data)
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if err == nil {
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for _, m := range metrics {
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y := lp.FromInfluxMetric(m)
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for k, v := range r.meta {
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y.AddMeta(k, v)
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}
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//y, err := lp.New(m.Name(), Tags2Map(m), r.meta, Fields2Map(m), m.Time())
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if r.sink != nil {
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r.sink <- y
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}
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}
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}
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}
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func (r *NatsReceiver) Close() {
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if r.nc != nil {
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log.Print("[NatsReceiver] CLOSE")
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r.nc.Close()
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}
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}
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