Memory leak of LoadPrivilegeLoop? #59403
Description
Bug Report
Please answer these questions before submitting your issue. Thanks!
1. Minimal reproduce step (Required)
Like #59400
I create 2M users, and the keep 10% of them active, then run
"set password for test = 'xxx'" for all the 2M users
then run
"alter user test%d failed_login_attempts 10" for all the 2M users
...
This time analyze the memory usage after the workload is gone.
I suspect there is a leak, after the workload gone, the memory usage is still there:
As you can see the CPU is 0%, but at time 15:45, the memory usage is high.
And after a privilege full reload (the spike), the memory usage finally decreased.
Here is the mem profile before and after the full reload:
2. What did you expect to see? (Required)
The memory usage should reduce after the workload is gone like after.pb.gz
3. What did you see instead (Required)
See before.pb.gz
4. What is your TiDB version? (Required)
master?
commit 27365b47b27820152faf79395f6cf1b96eb3031f (HEAD -> master, origin/master, origin/HEAD)
Author: xzhangxian1008 <[email protected]>
Date: Tue Feb 11 15:35:39 2025 +0800
executor: fix the incorrect return when hash join encounters error (#59381)
close pingcap/tidb#59377