*: supress grpc "tcp set inq" loggings

[JaySon-Huang]

Signed-off-by: JaySon-Huang tshent@qq.com

What problem does this PR solve?

Issue Number: close #4940

Problem Summary:

There are about 30 lines per minute of logging about grpc debug message when tiflash running without any workload

[2022/09/06 16:43:23.588 +08:00] [DEBUG] [Server.cpp:306] ["grpc:/data1/jaysonhuang/tics/contrib/grpc/src/core/lib/iomgr/tcp_posix.cc, line number: 1793, log msg : cannot set inq fd=463 errno=92"] [thread_id=263]
>  egrep '09/06 16.43.*cannot set inq' log/tiflash.log | wc -l
30

What is changed and how it works?

Fail to set TCP_INQ do no harm but the logging is annoying, disable the logging by applying a patch

/* Linux has TCP_INQ support since 4.18, but it is safe to set
   the socket option on older kernels. */

Ref:

• torvalds/linux@b75eba7
• Make the TCP_INQ log a debug entry. grpc/grpc#18352

Check List

Tests

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

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Suppress the "tcp set inq" loggings

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• LittleFall
• windtalker

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[JaySon-Huang]

/run-all-tests

[sre-bot]

Coverage for changed files

no c/c++ source change detected

Coverage summary

Functions  MissedFunctions  Executed  Lines   MissedLines  Cover
18665      8197             56.08%    215944  84390        60.92%

full coverage report (for internal network access only)

[LittleFall]

integration-test failed
[2022-09-06T10:05:29.969Z] => waiting for test.t1 available

[2022-09-06T10:05:29.969Z] => cannot sync tables in 600.01643014s

[LittleFall]

/run-integration-test

[windtalker]

LGTM

[JaySon-Huang]

/merge

[ti-chi-bot]

@JaySon-Huang: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

You only need to trigger /merge once, and if the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 7f3068d

[ti-chi-bot]

@JaySon-Huang: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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.

[sre-bot]

Coverage for changed files

no c/c++ source change detected

Coverage summary

Functions  MissedFunctions  Executed  Lines   MissedLines  Cover
18665      8198             56.08%    215943  84431        60.90%

full coverage report (for internal network access only)