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  1. Percona Monitoring and Management
  2. PMM-1845

qan-agent FLUSH SLOW LOGS needlessly creates a GTID event

    Details

    • Type: Improvement
    • Status: Done
    • Priority: Medium
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: 1.5.3
    • Component/s: QAN Agent
    • Labels:

      Description

      since FLUSH SLOW LOGS is replicated, it generates a GTID event that executes on the slave and thus contains a GTID event that preclude it from being promoted as a master.  We should change our call to be:

      FLUSH NO_WRITE_TO_BINLOG SLOW LOGS

      Further this syntax is supported back to 5.5 so we should not have any compatability issues:

      https://dev.mysql.com/doc/refman/5.5/en/flush.html

      https://dev.mysql.com/doc/refman/5.6/en/flush.html

      https://dev.mysql.com/doc/refman/5.7/en/flush.html

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              • Assignee:
                roma.novikov Roma Novikov
                Reporter:
                michael.coburn@percona.com Michael Coburn
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                • Created:
                  Updated:
                  Resolved: