[hotfix] Fix stale read can not eliminate the learner read on TiFlash#10134
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JaySon-Huang merged 4 commits intopingcap:release-8.1-20250425-v8.1.2from Apr 25, 2025
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… proxy (pingcap#9841) ref pingcap#4982, close pingcap#9745 Signed-off-by: Calvin Neo <calvinneo1995@gmail.com>
…p#9882) ref pingcap#9745, close pingcap#9880 Signed-off-by: Calvin Neo <calvinneo1995@gmail.com> Signed-off-by: JaySon-Huang <tshent@qq.com> Co-authored-by: Calvin Neo <calvinneo1995@gmail.com> Co-authored-by: JaySon-Huang <tshent@qq.com>
…ingcap#9893) close pingcap#9750 Add a label with {"exclusive": "no-data"}, so that PD won't select TiFlash compute node stores for placing Region Signed-off-by: JaySon-Huang <tshent@qq.com>
…#10099) (pingcap#10132) ref pingcap#4982, close pingcap#10046 Signed-off-by: CalvinNeo <calvinneo1995@gmail.com>
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Note:
What problem does this PR solve?
Issue Number: ref #4982, close #10046
Problem Summary:
update proxy to raftstore-proxy-8.1
Proxy PR:
Including:\nSubmodule contrib/tiflash-proxy caa7a0c1dd..96545a2632:
The leader_safe_ts, self_safe_ts are always 0 in the TiFlash side, making TiFlash can not eliminate the learner read on region without any updates.
What is changed and how it works?
For detailed reasons why safe_ts failed to be updated, checkout the description on pingcap/tidb-engine-ext#429.
Check List
Tests
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