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show variables like "log_bin"; show pump status; show drainer status; |
总结：
1.配置tidb的binlogEnabled: false
2.将pump节点缩容到0
如果pump的pod无法自动删除，可以标记为下线
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kubectl -n tidb exec -it tidb-cluster-drainer-0 bash
/binlogctl -pd-urls=http://tidb-cluster-pd:2379 -cmd update-pump -node-id tidb-cluster-pump-0:8250 --state offline
/binlogctl -pd-urls=http://tidb-cluster-pd:2379 -cmd update-pump -node-id tidb-cluster-pump-1:8250 --state offline
/binlogctl -pd-urls=http://tidb-cluster-pd:2379 -cmd update-pump -node-id tidb-cluster-pump-2:8250 --state offline |
3.删除pump配置项
4.删除 Pump StatefulSet 资源
5.移除pump的pvc资源
6. 进入到drainer的pod中
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kubectl -n tidb exec -it tidb-cluster-drainer-0 bash
##如果有多个drainer需要执行多次tidb-cluster-drainer-0:8249
/binlogctl -pd-urls=http://tidb-cluster-pd:2379 -cmd offline-drainer -node-id tidb-cluster-drainer-0:8249 |
7.删除 Drainer StatefulSet 资源
第6步如果失败
kubectl run update-drainer-${ordinal_id} --image=pingcap/tidb-binlog:${tidb_version} --namespace=${namespace} --restart=OnFailure -- /binlogctl -pd-urls=http://${cluster_name}-pd:2379 -cmd update-drainer -node-id ${drainer_node_id}:8249 --state offline