tikv: fix region cache do not filter the down peers (#17337) #17342
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Signed-off-by: sre-bot <sre-bot@pingcap.com>
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/run-all-tests |
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cherry-pick #17337 to release-4.0
What problem does this PR solve?
Issue Number: close #17336
Problem Summary: filter the down peers to avoid accessing down peers in follower read and tiflash read(learner read).
What is changed and how it works?
What's Changed: filter the available peers.
Related changes
Check List
Tests
Side effects
Release note