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collect: instrumenting some basic gc stats #1267

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Aug 20, 2015
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collect: instrumenting some basic gc stats #1267

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14 changes: 14 additions & 0 deletions collect/collect.go
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Original file line number Diff line number Diff line change
Expand Up @@ -70,6 +70,8 @@ const (
descCollectAlloc = "Total number of bytes allocated and still in use by the runtime (via runtime.ReadMemStats)."
descCollectDropped = "Counter of dropped data points due to the queue being full."
descCollectGoRoutines = "Total number of goroutines that currently exist (via runtime.NumGoroutine)."
descCollectGcCpuFraction = "fraction of CPU time used by GC"
descCollectTotalGCPause = "Total GC Pause time in milliseconds"
descCollectPostBad = "Counter of HTTP POST requests where resp.StatusCode != http.StatusNoContent."
descCollectPostBatchSize = "Number of datapoints included in each batch."
descCollectPostCount = "Counter of batches sent to the server."
Expand Down Expand Up @@ -143,13 +145,25 @@ func InitChan(tsdbhost *url.URL, root string, ch chan *opentsdb.DataPoint) error
runtime.ReadMemStats(&ms)
return ms.Alloc
})
Set("collect.gc.cpu_fraction", Tags, func() interface{} {
var ms runtime.MemStats
runtime.ReadMemStats(&ms)
return ms.GCCPUFraction
})
Set("collect.gc.total_pause", Tags, func() interface{} {
var ms runtime.MemStats
runtime.ReadMemStats(&ms)
return ms.PauseTotalNs / uint64(time.Millisecond)
})
Set("collect.goroutines", Tags, func() interface{} {
return runtime.NumGoroutine()
})
AggregateMeta(metricRoot+"collect.post.batchsize", metadata.Count, descCollectPostBatchSize)
AggregateMeta(metricRoot+"collect.post.duration", metadata.MilliSecond, descCollectPostDuration)
metadata.AddMetricMeta(metricRoot+"collect.alloc", metadata.Gauge, metadata.Bytes, descCollectAlloc)
metadata.AddMetricMeta(metricRoot+"collect.goroutines", metadata.Gauge, metadata.Count, descCollectGoRoutines)
metadata.AddMetricMeta(metricRoot+"collect.gc.cpu_fraction", metadata.Gauge, metadata.Pct, descCollectGcCpuFraction)
metadata.AddMetricMeta(metricRoot+"collect.gc.total_pause", metadata.Counter, metadata.MilliSecond, descCollectTotalGCPause)
metadata.AddMetricMeta(metricRoot+"collect.post.bad_status", metadata.Counter, metadata.PerSecond, descCollectPostBad)
metadata.AddMetricMeta(metricRoot+"collect.post.count", metadata.Counter, metadata.PerSecond, descCollectPostCount)
metadata.AddMetricMeta(metricRoot+"collect.post.error", metadata.Counter, metadata.PerSecond, descCollectPostError)
Expand Down