Fixing set command related failures #2
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vibhaska
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Jan 6, 2016
Fixing set command related failures
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sumwale
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Aug 7, 2021
Deploy in production with 10k tables for months, revealed a lot of orphan lock grantors
when 'DROP TABLE'; and 100% Thread CPU usage on OldEntriesCleanerThread.
This pull request fixed these:
[Lock] Prevent unnecessary creating distributedLock when destroying a bucket region with
zero redundancy
[TX] OldEtriesCleanThread may run very slow due to getHostedTransactionsInProgress()
for each OldEntry. Replaced as Batch Compare for great performance enhancement.
[sumedh] fixed the running TX list to maintain a version and refresh if changed
in the above change else it can keep referring to an outdated list during its run
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