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kube-proxy: change buckets used by NetworkProgrammingLatency

Browse Source 
refs https://github.com/kubernetes/perf-tests/issues/640

We have too fine buckets granularity for lower latencies, at cost of the higher
latecies (7+ minutes). This is causing spikes in SLI calculated based on that
metrics.

I don't have strong opinion about actual values - those seemed to be better
matching our need. But let's have discussion about them.

Values:

0.015 s
0.030 s
0.060 s
0.120 s
0.240 s
0.480 s
0.960 s
1.920 s
3.840 s
7.680 s
15.360 s
30.720 s
61.440 s
122.880 s
245.760 s
491.520 s
983.040 s
1966.080 s
3932.160 s
7864.320 s
This commit is contained in:
Janek Łukaszewicz 2019-07-16 16:32:34 +02:00
parent 8e3a2f2a5b
commit 1dda3d8dfc
1 changed files with 1 additions and 3 deletions
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4
pkg/proxy/metrics/metrics.go
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@ -68,9 +68,7 @@ var (
Subsystem: kubeProxySubsystem,
Name: "network_programming_duration_seconds",
Help: "In Cluster Network Programming Latency in seconds",
// TODO(mm4tt): Reevaluate buckets before 1.14 release.
// The last bucket will be [0.001s*2^20 ~= 17min, +inf)
Buckets: prometheus.ExponentialBuckets(0.001, 2, 20),
Buckets: prometheus.ExponentialBuckets(0.015, 2, 20),
},
)