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add comment about explicitly registering grpcprom client metrics

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This commit is contained in:
Han Kang
2019-08-27 10:30:57 -07:00
parent 4e5d906c4d
commit 1700a315c1
1 changed files with 4 additions and 0 deletions
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4
staging/src/k8s.io/apiserver/pkg/storage/storagebackend/factory/etcd3.go
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@@ -48,6 +48,10 @@ const keepaliveTimeout = 10 * time.Second
const dialTimeout = 20 * time.Second const dialTimeout = 20 * time.Second
func init() { func init() {
// grpcprom auto-registers (via an init function) their client metrics, since we are opting out of
// using the global prometheus registry and using our own wrapped global registry,
// we need to explicitly register these metrics to our global registry here.
// For reference: https://github.com/kubernetes/kubernetes/pull/81387
legacyregistry.RawMustRegister(grpcprom.DefaultClientMetrics) legacyregistry.RawMustRegister(grpcprom.DefaultClientMetrics)
} }