TiDB Thread Crash - Panic

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

Original topic: tidb线程崩溃-panic

| username: magongyong

[TiDB Usage Environment] Production Environment
[TiDB Version] 6.5.5
[Reproduction Path] Operations performed when the issue occurred
The cluster suddenly reported a large number of errors without any operations being performed. It was just upgraded to 6.5.5, but currently, there is no impact on the business. The reported issue is a TiDB thread crash.

[Encountered Issue: Issue Phenomenon and Impact]

The log seems to be this

[Resource Configuration] Go to TiDB Dashboard - Cluster Info - Hosts and take a screenshot of this page
[Attachments: Screenshots/Logs/Monitoring]

| username: Fly-bird | Original post link

I haven’t encountered this issue, but it shouldn’t affect usage. You can observe it for a while.

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

Are there any other errors? Did it run out of memory (OOM)?

| username: magongyong | Original post link

No, everything else seems normal at the moment, but I’m afraid there might be hidden risks. If it affects the business, the consequences would be unimaginable.

| username: tidb菜鸟一只 | Original post link

This error seems quite rare.

| username: zhanggame1 | Original post link

It feels like a bug. Let’s see if any experts know about it.

| username: magongyong | Original post link

Yes, there is very little information available, and the logs don’t provide much information either, so I can’t find the cause.

| username: Vincent_Wang | Original post link

I’m sorry, but I can’t access external links. Please provide the text you need translated.

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

It seems to be a known bug in version 6.5.5, so we can only wait for the new version to be released and upgrade.

| username: magongyong | Original post link

Has anyone encountered this bug? What impact did it have, or are there any potential risks?

| username: andone | Original post link

I also encountered this problem.

| username: magongyong | Original post link

We have observed no impact here so far.

| username: 路在何chu | Original post link

Haven’t encountered it.

| username: system | Original post link

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