ETCD清理碎片
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报错信息

节点kubelet日志出现

etcdserver: mvcc: database space exceeded

master节点安装etcdctl

arm 

wget https://repo.huaweicloud.com/etcd/v3.5.21/etcd-v3.5.21-linux-arm64.tar.gz

tar -zxvf etcd-v3.5.21-linux-arm64.tar.gz

mv etcd-v3.5.21-linux-arm64/etcdctl /usr/local/bin

x86

wget https://repo.huaweicloud.com/etcd/v3.5.21/etcd-v3.5.21-linux-amd64.tar.gz

tar -zxvf etcd-v3.5.21-linux-amd64.tar.gz

mv etcd-v3.5.21-linux-amd64/etcdctl /usr/local/bin

清理

执行
  ETCDCTL_API=3 etcdctl \
  --endpoints=https://127.0.0.1:2379 \
  --cacert=/etc/kubernetes/pki/etcd/ca.crt \
  --cert=/etc/kubernetes/pki/etcd/server.crt \
  --key=/etc/kubernetes/pki/etcd/server.key \
  endpoint status --write-out=fields

找到Revision

  ETCDCTL_API=3 etcdctl \
  --endpoints=https://127.0.0.1:2379 \
  --cacert=/etc/kubernetes/pki/etcd/ca.crt \
  --cert=/etc/kubernetes/pki/etcd/server.crt \
  --key=/etc/kubernetes/pki/etcd/server.key \
  --dial-timeout=60s \
  --command-timeout=600s \
  compact 485945827  ## Revision id


ETCDCTL_API=3 etcdctl --endpoints=https://127.0.0.1:2379 \
  --cacert=/etc/kubernetes/pki/etcd/ca.crt \
  --cert=/etc/kubernetes/pki/etcd/server.crt \
  --key=/etc/kubernetes/pki/etcd/server.key \
  --dial-timeout=60s \
  --command-timeout=600s \
  defrag

  ETCDCTL_API=3 etcdctl \
  --endpoints=https://127.0.0.1:2379\
  --cacert=/etc/kubernetes/pki/etcd/ca.crt \
  --cert=/etc/kubernetes/pki/etcd/server.crt \
  --key=/etc/kubernetes/pki/etcd/server.key \
  alarm disarm

三台master节点轮流执行

查看
ETCDCTL_API=3 etcdctl --endpoints=https://127.0.0.1:2379 \
  --cacert=/etc/kubernetes/pki/etcd/ca.crt \
  --cert=/etc/kubernetes/pki/etcd/server.crt \
  --key=/etc/kubernetes/pki/etcd/server.key \
  endpoint status --write-out=table
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