Instance Performance Analysis Stuck at 99%

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

Original topic: 实例性能分析卡在99%不动

| username: wakaka

[TiDB Usage Environment] Production Environment / Testing / PoC
[TiDB Version] 5.2.2
[Encountered Issue] Instance performance analysis stuck at 99%
[Reproduction Path] Steps taken that led to the issue
Clicked on instance performance analysis at 10:48 AM, and by 2:48 PM, 4 hours later, it was still stuck at 99%
[Issue Phenomenon and Impact]

[Attachment]

| username: wakaka | Original post link

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| username: wakaka | Original post link

How can I check the cause of the hang, and how can I terminate it?

| username: xfworld | Original post link

Check the dashboard logs…

| username: xiaohetao | Original post link

How large is the cluster? How long did it take to analyze up to 99%?

| username: alfred | Original post link

Can selecting a single instance for analysis be successful?

| username: wakaka | Original post link

It’s not quite 6TB, and it’s still at 99%. It’s been nearly 12 hours now.

| username: wakaka | Original post link

Didn’t find any critical error information, are there any key logs?

| username: wakaka | Original post link

It reached 99% in less than 10 minutes, but then it stopped moving. Is there a way to cancel it?

| username: Billmay表妹 | Original post link

You need to upload the logs.

| username: cheng | Original post link

Why doesn’t yours have the analysis type option?

| username: wakaka | Original post link

Version issue? I’m using 5.2.2.

| username: wakaka | Original post link

There are too many logs, I don’t know which logs to upload~

| username: Billmay表妹 | Original post link

Reference

| username: xiaohetao | Original post link

The lower version seems to not have that option, mine doesn’t have it either.

| username: xiaohetao | Original post link

It reached 99% in less than 10 minutes, but then it stopped moving. Is there a way to cancel it?

There is no exit, pause, or cancel button.

| username: HACK | Original post link

After initiating this function on the frontend, I’m not sure if it’s possible to view the related processes on the node’s operating system.

| username: wakaka | Original post link

If there is no button, is there any way to cancel it? I see it’s still there.

| username: xiaohetao | Original post link

No, and I can’t find the corresponding process.

If it’s not a core business environment, you can try restarting the PD node where the dashboard is located (UI node).