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如果pump的pod无法自动删除，可以标记为下线
| Code Block |
|---|
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 |
...