TiCDC Stuck

Translated
1

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

Original topic: ticdc卡住

| username: TiDBer_pkQ5q1l0

[TiDB Usage Environment] Production Environment
[TiDB Version] 5.2.1
[Reproduction Path]
tiup ctl:v5.2.1 cdc changefeed pause --pd=http://xxxx:2379 --changefeed-id tidb-task01
tiup ctl:v5.2.1 cdc changefeed resume --pd=http://xxxx:2379 --changefeed-id tidb-task01
[Encountered Problem: Phenomenon and Impact]
After restarting ticdc, the following information is reported, which is incomprehensible, and the synchronization is stuck and does not proceed further.

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[Resource Configuration]
[Attachments: Screenshots/Logs/Monitoring]

2
| username: ealam_小羽 | Original post link

Sure, here is the translation:

“Refer to this?
ticdc 延迟非常高 后台一直刷 The resolvedTs is fallen back in kvclient - #7，来自 xiaohetao - TiDB 的问答社区”

3
| username: TiDBer_pkQ5q1l0 | Original post link

My version is 5.2.1, which seems to be higher than 5.1.4. Additionally, the workaround method is count(*), but it doesn’t specify whether it’s counting the upstream or downstream table.

4
| username: TiDBer_pkQ5q1l0 | Original post link

After waiting for more than an hour, the synchronization continued.

5
| username: system | Original post link

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