automation-suite
2023.10
false
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Linux 版 Automation Suite 安装指南

上次更新日期 2025年6月10日

Redis 探测器失败

描述

如果节点 ID 文件不存在,则 Redis 探测器可能会失败。如果 Pod 尚未启动,则可能会发生这种情况。

有一个恢复作业可以自动修复此问题,并且不应在作业运行时执行以下步骤。

当 Redis 企业版集群与其半数以上的节点失去联系时(由于节点故障或网络拆分),集群将停止响应客户端连接。Pod 也无法重新加入集群。

解决方案

  1. 使用以下命令禁用 argo 同步,删除 Redis 数据库和 Redis 集群资源,重新启用 argo 同步,然后启动恢复作业:

    kubectl -n argocd patch application fabric-installer --type=json -p '[{"op":"replace","path":"/spec/syncPolicy/automated/selfHeal","value":false}]'
    kubectl -n argocd patch application redis-cluster --type=json -p '[{"op":"replace","path":"/spec/syncPolicy/automated/selfHeal","value":false}]'
    kubectl -n argocd patch application redis-operator --type=json -p '[{"op":"replace","path":"/spec/syncPolicy/automated/selfHeal","value":false}]'
    kubectl delete redb -n redis-system redis-cluster-db --force --grace-period=0 &
    kubectl delete rec -n redis-system redis-cluster --force --grace-period=0 &
    kubectl patch redb -n redis-system redis-cluster-db --type=json -p '[{"op":"remove","path":"/metadata/finalizers","value":"finalizer.redisenterprisedatabases.app.redislabs.com"}]'
    kubectl patch rec redis-cluster -n redis-system --type=json -p '[{"op":"remove","path":"/metadata/finalizers","value":"redbfinalizer.redisenterpriseclusters.app.redislabs.com"}]'
    kubectl -n redis-system get pods | grep services-rigger | awk '{print $1}' | xargs kubectl -n redis-system delete pod --force
    kubectl -n redis-system get pods | grep -E "redis-cluster-[0-2]" | awk '{print $1}' | xargs kubectl -n redis-system delete pod --force
    kubectl -n argocd patch application fabric-installer --type=json -p '[{"op":"replace","path":"/spec/syncPolicy/automated/selfHeal","value":true}]'
    kubectl -n argocd patch application redis-cluster --type=json -p '[{"op":"replace","path":"/spec/syncPolicy/automated/selfHeal","value":true}]'
    kubectl -n argocd patch application redis-operator --type=json -p '[{"op":"replace","path":"/spec/syncPolicy/automated/selfHeal","value":true}]'
    kubectl -n redis-system create job --from=cronjob/redis-cluster-recovery-job cronjob-manual-runkubectl -n argocd patch application fabric-installer --type=json -p '[{"op":"replace","path":"/spec/syncPolicy/automated/selfHeal","value":false}]'
    kubectl -n argocd patch application redis-cluster --type=json -p '[{"op":"replace","path":"/spec/syncPolicy/automated/selfHeal","value":false}]'
    kubectl -n argocd patch application redis-operator --type=json -p '[{"op":"replace","path":"/spec/syncPolicy/automated/selfHeal","value":false}]'
    kubectl delete redb -n redis-system redis-cluster-db --force --grace-period=0 &
    kubectl delete rec -n redis-system redis-cluster --force --grace-period=0 &
    kubectl patch redb -n redis-system redis-cluster-db --type=json -p '[{"op":"remove","path":"/metadata/finalizers","value":"finalizer.redisenterprisedatabases.app.redislabs.com"}]'
    kubectl patch rec redis-cluster -n redis-system --type=json -p '[{"op":"remove","path":"/metadata/finalizers","value":"redbfinalizer.redisenterpriseclusters.app.redislabs.com"}]'
    kubectl -n redis-system get pods | grep services-rigger | awk '{print $1}' | xargs kubectl -n redis-system delete pod --force
    kubectl -n redis-system get pods | grep -E "redis-cluster-[0-2]" | awk '{print $1}' | xargs kubectl -n redis-system delete pod --force
    kubectl -n argocd patch application fabric-installer --type=json -p '[{"op":"replace","path":"/spec/syncPolicy/automated/selfHeal","value":true}]'
    kubectl -n argocd patch application redis-cluster --type=json -p '[{"op":"replace","path":"/spec/syncPolicy/automated/selfHeal","value":true}]'
    kubectl -n argocd patch application redis-operator --type=json -p '[{"op":"replace","path":"/spec/syncPolicy/automated/selfHeal","value":true}]'
    kubectl -n redis-system create job --from=cronjob/redis-cluster-recovery-job cronjob-manual-run 
  2. 如果错误仍然存在,请检查 Kubernetes 节点之间是否存在时钟偏差。 即使任何节点提前或滞后了几秒钟,Redis Pod 都将无法在其上运行。 要修复此问题,您必须确保所有节点的时钟同步。

  • 描述
  • 解决方案

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