CDC task is stuck. The task resumes after restarting the CDC process

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

Original topic: cdc任务卡住.重启cdc进程后任务恢复。

| username: 像风一样的男子

In the early morning, the enterprise WeChat group received a CDC monitoring alert.

Upon checking the CDC logs, the following warning was found:
[WARN] [client.go:279] [“etcd client outCh blocking too long, the etcdWorker may be stuck”] [duration=4h4m27.999698335s] [role=processor]

After searching the forum, it was found to be a known bug:

Action: After restarting the faulty CDC node, the task returned to normal.

| username: 大飞哥online | Original post link

Can’t sleep anymore, time to get up and upgrade :face_with_peeking_eye:

| username: Kongdom | Original post link

:yum: I’ll mark this as the best answer myself.

| username: 像风一样的男子 | Original post link

I didn’t see which version fixed this bug.

| username: 大飞哥online | Original post link

I see it was mentioned in 2022, quite early.

| username: 像风一样的男子 | Original post link

Three CDC nodes, just one node failed, three tasks got stuck on one task, and restarting the failed node resolved the issue.

| username: 像风一样的男子 | Original post link

I saw a post reporting that this bug still exists in version 6.5.2.

| username: Kongdom | Original post link

It looks like it was only fixed in version 6.0 and later~

| username: 像风一样的男子 | Original post link

Take a look at this post, version 6.5.2 is mentioned, and version 6.5 was just released this year.

| username: Fly-bird | Original post link

The almighty reboot method

| username: Kongdom | Original post link

:joy: That might not have been fixed properly~

| username: 像风一样的男子 | Original post link

This bug won’t be triggered if the downstream Kafka doesn’t fail. If it is triggered, just restart.

| username: Kongdom | Original post link

:yum: Restarting solves 99.99% of problems.

| username: system | Original post link

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