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Region may not be removed in hot peer cache after merging #8698

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#8702
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Region may not be removed in hot peer cache after merging#8698
#8702
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affects-5.4This bug affects the 5.4.x(LTS) versions.affects-6.1This bug affects the 6.1.x(LTS) versions.affects-6.5This bug affects the 6.5.x(LTS) versions.affects-7.1This bug affects the 7.1.x(LTS) versions.affects-7.5This bug affects the 7.5.x(LTS) versions.affects-8.1This bug affects the 8.1.x(LTS) versions.severity/majortype/bugThe issue is confirmed as a bug.
@rleungx

Description

@rleungx
rleungx
opened on Oct 14, 2024

Bug Report

If the region is not completely cooled down and the merge happens, it might be left in the hot peer cache and never be cleaned up. The merged region will never send a heartbeat again, resulting in checkExpiredTask not working.

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    affects-5.4This bug affects the 5.4.x(LTS) versions.affects-6.1This bug affects the 6.1.x(LTS) versions.affects-6.5This bug affects the 6.5.x(LTS) versions.affects-7.1This bug affects the 7.1.x(LTS) versions.affects-7.5This bug affects the 7.5.x(LTS) versions.affects-8.1This bug affects the 8.1.x(LTS) versions.severity/majortype/bugThe issue is confirmed as a bug.

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