How to Decommission Non-existent Pump and Drainer Components

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This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: 如何下线不存在的pump和drainer 组件

| username: TiDBer_菜鸟

Today, I installed a pump and a Drainer component. When checking the status, I found that there are actually two nodes, 10.13.2.141:8250 and 10.13.2.141:8249, which are no longer visible in the TiDB cluster. It is possible that the nodes were not properly removed before directly upgrading the cluster, and the metadata is still stored in PD. Now, I am unable to remove these two non-existent nodes using the binlog-ctl tool. I would like to ask how I should proceed.

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| username: Jasper | Original post link

Doesn’t binlogctl --cmd update-pump work? How do you perform the operation you mentioned that can’t be done through binlogctl? Refer to this document: binlogctl 工具 | PingCAP 文档中心

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| username: TiDBer_菜鸟 | Original post link

Got it, you need to change the status first, you can’t go offline directly. Thanks for the reply.

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| username: wangccsy | Original post link

Just passing by.

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| username: oceanzhang | Original post link

You need to pause first and then go offline, right?

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| username: heiwandou | Original post link

It needs to be deleted under normal conditions.

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| username: dba远航 | Original post link

Amazing thing, first time encountering it.

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| username: system | Original post link

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