ClusterCockpit/cc-metric-collector
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This commit is contained in:
Holger Obermaier
2022-01-28 15:16:58 +01:00
parent 82f5c1c5d0
commit 4e408f9490
3 changed files with 81 additions and 47 deletions
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39
collectors/collectorManager.go
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@@ -34,17 +34,18 @@ var AvailableCollectors = map[string]MetricCollector{
"nfsstat": new(NfsCollector),
}
// Metric collector manager data structure
type collectorManager struct {
collectors []MetricCollector
output chan lp.CCMetric // List of all output channels
done chan bool // channel to finish / stop metric collector manager
ticker mct.MultiChanTicker
duration time.Duration
wg *sync.WaitGroup
config map[string]json.RawMessage
collectors []MetricCollector // List of metric collectors to use
output chan lp.CCMetric // Output channels
done chan bool // channel to finish / stop metric collector manager
ticker mct.MultiChanTicker // periodically ticking once each interval
duration time.Duration // duration (for metrics that measure over a given duration)
wg *sync.WaitGroup // wait group for all goroutines in cc-metric-collector
config map[string]json.RawMessage // json encoded config for collector manager
}
// Metric collector access functions
// Metric collector manager access functions
type CollectorManager interface {
Init(ticker mct.MultiChanTicker, duration time.Duration, wg *sync.WaitGroup, collectConfigFile string) error
AddOutput(output chan lp.CCMetric)
@@ -53,9 +54,9 @@ type CollectorManager interface {
}
// Init initializes a new metric collector manager by setting up:
// * output channels
// * output channel
// * done channel
// * wait group synchronization (from variable wg)
// * wait group synchronization for goroutines (from variable wg)
// * ticker (from variable ticker)
// * configuration (read from config file in variable collectConfigFile)
// Initialization is done for all configured collectors
@@ -82,20 +83,20 @@ func (cm *collectorManager) Init(ticker mct.MultiChanTicker, duration time.Durat
}
// Initialize configured collectors
for k, cfg := range cm.config {
if _, found := AvailableCollectors[k]; !found {
cclog.ComponentError("CollectorManager", "SKIP unknown collector", k)
for collectorName, collectorCfg := range cm.config {
if _, found := AvailableCollectors[collectorName]; !found {
cclog.ComponentError("CollectorManager", "SKIP unknown collector", collectorName)
continue
}
c := AvailableCollectors[k]
collector := AvailableCollectors[collectorName]
err = c.Init(cfg)
err = collector.Init(collectorCfg)
if err != nil {
cclog.ComponentError("CollectorManager", "Collector", k, "initialization failed:", err.Error())
cclog.ComponentError("CollectorManager", "Collector", collectorName, "initialization failed:", err.Error())
continue
}
cclog.ComponentDebug("CollectorManager", "ADD COLLECTOR", c.Name())
cm.collectors = append(cm.collectors, c)
cclog.ComponentDebug("CollectorManager", "ADD COLLECTOR", collector.Name())
cm.collectors = append(cm.collectors, collector)
}
return nil
}
@@ -157,7 +158,7 @@ func (cm *collectorManager) Close() {
// New creates a new initialized metric collector manager
func New(ticker mct.MultiChanTicker, duration time.Duration, wg *sync.WaitGroup, collectConfigFile string) (CollectorManager, error) {
cm := &collectorManager{}
cm := new(collectorManager)
err := cm.Init(ticker, duration, wg, collectConfigFile)
if err != nil {
return nil, err