#首先确认数据情况
/usr/bin/etcdctl --endpoints=$(kubectl get no -owide|awk '$3 == "master"{print$1}'|xargs -I {} printf "https://{}:2379,"|sed 's/,$//') --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key endpoint status -w table

• 1.
• 2.

#登录masterj节点
chmod +x /usr/bin/etcdctl
export ETCDCTL_API=3 
HOST1=10.156.140.178
HOST2=10.156.140.187
HOST3=10.156.140.189
#3个etcd节点ip分开执行
ENDPOINTS=https://$HOST1:2379  
#获取当前版本
rev=$(/usr/bin/etcdctl --endpoints=$ENDPOINTS --cacert /etc/kubernetes/pki/etcd/ca.crt    --cert /etc/kubernetes/pki/etcd/peer.crt   --key /etc/kubernetes/pki/etcd/peer.key endpoint status --write-out="json" | egrep -o '"revision":[0-9]*' | egrep -o '[0-9].*')

#备注：echo $rev 验证有无数据输出
# 由于这里的ep是3个，需要检查revs中最大的版本，然后以最大的来压缩。
 echo $revs
292113382 292113383 292113386

rev=292113386

#压缩掉所有旧版本
etcdctl --endpoints=$ENDPOINTS --cacert /etc/kubernetes/pki/etcd/ca.crt    --cert /etc/kubernetes/pki/etcd/peer.crt   --key /etc/kubernetes/pki/etcd/peer.key compact $rev

#整理多余空间
usr/bin/etcdctl --endpoints=$ENDPOINTS --cacert /etc/kubernetes/pki/etcd/ca.crt    --cert /etc/kubernetes/pki/etcd/peer.crt   --key /etc/kubernetes/pki/etcd/peer.key defrag

#执行完验证
/usr/bin/etcdctl --endpoints=$(kubectl get no -owide|awk '$3 == "master"{print$1}'|xargs -I {} printf "https://{}:2379,"|sed 's/,$//') --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key endpoint status -w table

• 1.
• 2.
• 3.
• 4.
• 5.
• 6.
• 7.
• 8.
• 9.
• 10.
• 11.
• 12.
• 13.
• 14.
• 15.
• 16.
• 17.
• 18.
• 19.
• 20.
• 21.
• 22.
• 23.
• 24.
• 25.
• 26.