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Add connection related metrics to EventedPLEG

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Signed-off-by: Harshal Patil <harpatil@redhat.com>
This commit is contained in:
Harshal Patil
2023-02-22 10:29:07 -05:00
parent d971809b49
commit 412b4b3329
3 changed files with 53 additions and 0 deletions
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41
pkg/kubelet/metrics/metrics.go
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@@ -43,6 +43,9 @@ const (
PLEGDiscardEventsKey = "pleg_discard_events"
PLEGRelistIntervalKey = "pleg_relist_interval_seconds"
PLEGLastSeenKey = "pleg_last_seen_seconds"
EventedPLEGConnErrKey = "evented_pleg_connection_error_count"
EventedPLEGConnKey = "evented_pleg_connection_success_count"
EventedPLEGConnLatencyKey = "evented_pleg_connection_latency_seconds"
EvictionsKey = "evictions"
EvictionStatsAgeKey = "eviction_stats_age_seconds"
PreemptionsKey = "preemptions"
@@ -240,6 +243,41 @@ var (
StabilityLevel: metrics.ALPHA,
},
)
// EventedPLEGConnErr is a Counter that tracks the number of errors encountered during
// the establishment of streaming connection with the CRI runtime.
EventedPLEGConnErr = metrics.NewCounter(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: EventedPLEGConnErrKey,
Help: "The number of errors encountered during the establishment of streaming connection with the CRI runtime.",
StabilityLevel: metrics.ALPHA,
},
)
// EventedPLEGConn is a Counter that tracks the number of times a streaming client
// was obtained to receive CRI Events.
EventedPLEGConn = metrics.NewCounter(
&metrics.CounterOpts{
Subsystem: KubeletSubsystem,
Name: EventedPLEGConnKey,
Help: "The number of times a streaming client was obtained to receive CRI Events.",
StabilityLevel: metrics.ALPHA,
},
)
// EventedPLEGConnLatency is a Histogram that tracks the latency of streaming connection
// with the CRI runtime, measured in seconds.
EventedPLEGConnLatency = metrics.NewHistogram(
&metrics.HistogramOpts{
Subsystem: KubeletSubsystem,
Name: EventedPLEGConnLatencyKey,
Help: "The latency of streaming connection with the CRI runtime, measured in seconds.",
Buckets: metrics.DefBuckets,
StabilityLevel: metrics.ALPHA,
},
)
// RuntimeOperations is a Counter that tracks the cumulative number of remote runtime operations.
// Broken down by operation type.
RuntimeOperations = metrics.NewCounterVec(
@@ -605,6 +643,9 @@ func Register(collectors ...metrics.StableCollector) {
legacyregistry.MustRegister(PLEGDiscardEvents)
legacyregistry.MustRegister(PLEGRelistInterval)
legacyregistry.MustRegister(PLEGLastSeen)
legacyregistry.MustRegister(EventedPLEGConnErr)
legacyregistry.MustRegister(EventedPLEGConn)
legacyregistry.MustRegister(EventedPLEGConnLatency)
legacyregistry.MustRegister(RuntimeOperations)
legacyregistry.MustRegister(RuntimeOperationsDuration)
legacyregistry.MustRegister(RuntimeOperationsErrors)