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Memory leak in region statistics #8710

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Memory leak in region statistics#8710
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affects-6.5This bug affects the 6.5.x(LTS) versions.affects-7.1This bug affects the 7.1.x(LTS) versions.impact/leakmay-affects-5.4may-affects-6.1may-affects-7.5may-affects-8.1report/customerCustomers have encountered this bug.severity/majortype/bugThe issue is confirmed as a bug.
@rleungx

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@rleungx
rleungx
opened on Oct 15, 2024

Bug Report

#7748 is going to fix the region statistics issue. But when cherry-picking to release 7.1 and 6.5. The PR forgot to delete the offline index when executing ClearDefunctRegion. See

EjZBjzs19m

https://github.com/tikv/pd/pull/7840/files#diff-dab84781ea260730fbe8dc607a08a59bd397947731905e3b3d9d2c3ad1ab0330R303-R311

After merging, it may be left in memory until the PD restarts.

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    affects-6.5This bug affects the 6.5.x(LTS) versions.affects-7.1This bug affects the 7.1.x(LTS) versions.impact/leakmay-affects-5.4may-affects-6.1may-affects-7.5may-affects-8.1report/customerCustomers have encountered this bug.severity/majortype/bugThe issue is confirmed as a bug.

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