mirror of
https://github.com/ClusterCockpit/cc-metric-collector.git
synced 2024-11-10 04:27:25 +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>
85 lines
1.7 KiB
Go
85 lines
1.7 KiB
Go
package sinks
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import (
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"bytes"
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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 NatsSink struct {
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sink
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client *nats.Conn
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encoder *influx.Encoder
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buffer *bytes.Buffer
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}
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func (s *NatsSink) connect() error {
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uinfo := nats.UserInfo(s.user, s.password)
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uri := fmt.Sprintf("nats://%s:%s", s.host, s.port)
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log.Print("Using URI ", uri)
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s.client = nil
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nc, err := nats.Connect(uri, uinfo)
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if err != nil {
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log.Fatal(err)
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return err
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}
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s.client = nc
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return nil
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}
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func (s *NatsSink) Init(config sinkConfig) error {
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s.name = "NatsSink"
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if len(config.Host) == 0 ||
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len(config.Port) == 0 ||
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len(config.Database) == 0 {
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return errors.New("Not all configuration variables set required by NatsSink")
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}
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s.host = config.Host
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s.port = config.Port
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s.database = config.Database
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s.organization = config.Organization
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s.user = config.User
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s.password = config.Password
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// Setup Influx line protocol
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s.buffer = &bytes.Buffer{}
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s.buffer.Grow(1025)
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s.encoder = influx.NewEncoder(s.buffer)
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s.encoder.SetPrecision(time.Second)
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s.encoder.SetMaxLineBytes(1024)
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// Setup infos for connection
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return s.connect()
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}
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func (s *NatsSink) Write(point lp.CCMetric) error {
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if s.client != nil {
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_, err := s.encoder.Encode(point)
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if err != nil {
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log.Print(err)
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return err
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}
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}
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return nil
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}
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func (s *NatsSink) Flush() error {
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if s.client != nil {
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if err := s.client.Publish(s.database, s.buffer.Bytes()); err != nil {
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return err
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}
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s.buffer.Reset()
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}
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return nil
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}
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func (s *NatsSink) Close() {
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log.Print("Closing Nats connection")
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if s.client != nil {
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s.client.Close()
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}
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}
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