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backendcluster: isolate topology fetch across clusters#1150

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ti-chi-bot[bot] merged 2 commits into
pingcap:mainfrom
YangKeao:fix-affect-range-of-single-cluster-failure
May 21, 2026
Merged

backendcluster: isolate topology fetch across clusters#1150
ti-chi-bot[bot] merged 2 commits into
pingcap:mainfrom
YangKeao:fix-affect-range-of-single-cluster-failure

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What problem does this PR solve?

Issue Number: close #1149

Problem Summary:

What is changed and how it works:

  1. Parallelize the GetTiDBTopology

Check List

Tests

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

Notable changes

  • Has configuration change
  • Has HTTP API interfaces change
  • Has tiproxyctl change
  • Other user behavior changes

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

@ti-chi-bot ti-chi-bot Bot requested review from bb7133 and djshow832 May 14, 2026 17:43
@ti-chi-bot ti-chi-bot Bot added the size/M label May 14, 2026
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codecov-commenter commented May 14, 2026

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (main@989ac0e). Learn more about missing BASE report.

Additional details and impacted files
@@           Coverage Diff           @@
##             main    #1150   +/-   ##
=======================================
  Coverage        ?   67.37%           
=======================================
  Files           ?      149           
  Lines           ?    16336           
  Branches        ?        0           
=======================================
  Hits            ?    11007           
  Misses          ?     4586           
  Partials        ?      743           
Flag Coverage Δ
unit 67.37% <100.00%> (?)

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Signed-off-by: Yang Keao <yangkeao@chunibyo.icu>
@YangKeao YangKeao force-pushed the fix-affect-range-of-single-cluster-failure branch from 00f5673 to c22fbb8 Compare May 15, 2026 05:06
@ti-chi-bot ti-chi-bot Bot removed the lgtm label May 21, 2026
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ti-chi-bot Bot commented May 21, 2026

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: djshow832

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@ti-chi-bot ti-chi-bot Bot added the lgtm label May 21, 2026
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ti-chi-bot Bot commented May 21, 2026

[LGTM Timeline notifier]

Timeline:

  • 2026-05-21 09:18:49.650152119 +0000 UTC m=+28660.291008922: ☑️ agreed by djshow832.
  • 2026-05-21 09:19:01.485434596 +0000 UTC m=+28672.126291399: ✖️🔁 reset by djshow832.
  • 2026-05-21 09:19:12.087471078 +0000 UTC m=+28682.728327881: ☑️ agreed by djshow832.

@ti-chi-bot ti-chi-bot Bot merged commit d052629 into pingcap:main May 21, 2026
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One failed backend cluster may affect all clusters

3 participants