Fix exception of sched_setaffinity.

[JinheLin]

What problem does this PR solve?

Issue Number: close #3106

What is changed and how it works?

Proposal: xxx

What's Changed:

sched_setaffinity may returns error when threads exit concurrently.

Don't throw exeception when sched_setaffinity returns error and just log a message.

Related changes

• PR to update pingcap/docs/pingcap/docs-cn:
• Need to cherry-pick to the release branch:

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

Release note

none

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• flowbehappy

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

The full list of commands accepted by this bot can be found here.

Reviewer can indicate their review by submitting an approval review.
Reviewer can cancel approval by submitting a request changes review.

[solotzg]

Can we catch all exceptions thrown from https://github.com/pingcap/tics/blob/275fa1bc48a9953e828db3100f3086a553d1255b/dbms/src/Server/Server.cpp#L1260-L1262

[flowbehappy]

LGTM

[JinheLin]

Can we catch all exceptions thrown from

https://github.com/pingcap/tics/blob/275fa1bc48a9953e828db3100f3086a553d1255b/dbms/src/Server/Server.cpp#L1260-L1262

Yes.

[JaySon-Huang]

/cherry-pick-master

[JaySon-Huang]

/cherrypick master

[ti-chi-bot]

@JaySon-Huang: new pull request created: #3133.

In response to this:

/cherrypick master

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.