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Fixbackup copy #11077

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Fixbackup copy #11077

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Commits on Nov 27, 2023

  1. Fix backup workers stability issues 

    This PR includes a few stability fixes for Backup Worker

* Fixed memory bookkeeping issue in Backup Worker. Previously
it didn't release flow lock correctly when erasing messages.

* Added a check for popped() API after peeking mutations from
tlog. A non-zero value indicates mutation loss

* Added TLogServer fix to return 0 from poppedVersion() for
unrecognized log router tags.
    @hfu94
    hfu94 committed Nov 27, 2023
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  2. Add log

    @hfu94
    hfu94 committed Nov 27, 2023
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  3. Add more logs about startedBackupWorkers key

    @hfu94
    hfu94 committed Nov 27, 2023
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  4. nested loop keyword seems to cause problems 

    now it has DataDistributionActive for quiet database
    @hfu94
    hfu94 committed Nov 27, 2023
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