grpc: allow client send consecutive pings in every 5 seconds

[yongman]

What problem does this PR solve?

Issue Number: Close #8119

What is changed and how does it work?

grpc: allow client send consecutive pings in every 5 seconds

Check List

Tests

• Manual test (add detailed scripts or steps below)

Code changes

Side effects

Related changes

Release note

None.

[ti-chi-bot[bot]]

[REVIEW NOTIFICATION]

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[ti-chi-bot[bot]]

Hi @yongman. Thanks for your PR.

I'm waiting for a tikv member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

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 kubernetes/test-infra repository.

[HuSharp]

/ok-to-test

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 77.25%. Comparing base (ca179e6) to head (43bd742).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #8120   +/-   ##
=======================================
  Coverage   77.24%   77.25%           
=======================================
  Files         471      471           
  Lines       61696    61700    +4     
=======================================
+ Hits        47660    47669    +9     
+ Misses      10454    10450    -4     
+ Partials     3582     3581    -1     

Flag	Coverage Δ
unittests	77.25% <100.00%> (+<0.01%)	:arrow_up:

Flags with carried forward coverage won't be shown. Click here to find out more.

[HuSharp]

/check-issue-triage-complete

[yongman]

@HuSharp PTAL

[ti-chi-bot[bot]]

@yongman: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-integration-realcluster-test	43bd7424f04a7e6b4355ad3104d57853b19659c3	link	false	/test pull-integration-realcluster-test

Full PR test history. Your PR dashboard.

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 kubernetes/test-infra repository. I understand the commands that are listed here.

[HuSharp]

/test pull-integration-realcluster-test

[ti-chi-bot[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: HuSharp, nolouch

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Needs approval from an approver in each of these files:

• ~~OWNERS~~ [HuSharp,nolouch]

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[ti-chi-bot[bot]]

[LGTM Timeline notifier]

Timeline:

• 2024-07-08 07:46:01.828817064 +0000 UTC m=+257259.064051177: :ballot_box_with_check: agreed by nolouch.
• 2024-07-16 09:38:55.636950249 +0000 UTC m=+346757.627891714: :ballot_box_with_check: agreed by HuSharp.