kubernetes - Kubernetes 中的 CouchbaseCluster 资源在几天后消失

Question

在 kubernetes 中运行 Couchbase 6.5.1 几天后，定义的“CouchbaseCluster”资源消失了，导致我的 couchbase pod 被删除。

经过一番挖掘，我发现 Admissions Operator pod 日志包含每秒不止一次对 CouchbaseCluster 资源的持续更新：

I1021 15:05:20.013984       1 admission.go:185] Mutating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:20.061531       1 admission.go:137] Validating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:20.613922       1 admission.go:185] Mutating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:20.620427       1 admission.go:137] Validating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:21.414017       1 admission.go:185] Mutating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:21.460600       1 admission.go:137] Validating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:22.013887       1 admission.go:185] Mutating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:22.060931       1 admission.go:137] Validating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:22.413665       1 admission.go:185] Mutating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:22.420773       1 admission.go:137] Validating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:23.014797       1 admission.go:185] Mutating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:23.023459       1 admission.go:137] Validating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:23.614544       1 admission.go:185] Mutating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:23.661482       1 admission.go:137] Validating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:24.014503       1 admission.go:185] Mutating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:24.021428       1 admission.go:137] Validating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:24.613723       1 admission.go:185] Mutating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:24.639612       1 admission.go:137] Validating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:25.217866       1 admission.go:185] Mutating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:25.223814       1 admission.go:137] Validating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:25.614774       1 admission.go:185] Mutating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:25.662553       1 admission.go:137] Validating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:26.213481       1 admission.go:185] Mutating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:26.221502       1 admission.go:137] Validating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:26.813576       1 admission.go:185] Mutating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example
I1021 15:05:26.820181       1 admission.go:137] Validating resource: UPDATE couchbase.com/v2, Kind=CouchbaseCluster test/cb-example

这会导致 CouchbaseCluster 类型定义上的世代数迅速攀升。仅仅 15 分钟后它就达到了 1500。我怀疑这种行为不正常，最终 CouchbaseCluster 资源被 kubernetes 删除。

这种行为发生在最基本的 CouchbaseCluster 定义中：

apiVersion: couchbase.com/v2
kind: CouchbaseCluster
metadata:
  name: cb-example  
spec:
  image: couchbase/server:6.5.1  
  security:
    adminSecret: cb-auth
  networking:
    exposeAdminConsole: true
    adminConsoleServices:
    - data
  buckets:
    managed: true
  servers:
  - size: 3  
    name: all_services
    services:
    - data
    - index
    - query
    - search
    - eventing
    - analytics

运营商录取日志是否正常？

如何进一步调试它？

标签： kubernetescouchbase

Answer 1

消失的集群原来是这个问题： https ://forums.couchbase.com/t/multiple-couchbase-environments-in-one-kubernetes-cluster/28343