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  1. MariaDB Server
  2. MDEV-7557

Option to put into slow log any transaction that was retried in parallel replication

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          In optimistic parallel replication (MDEV-6676), we speculatively apply
          transactions in parallel, even if they might conflict. If too many conflicts
          happen, excessive retry might degrade performance.

          The DBA needs some way to monitor for such problems. One good way would seem
          to have an option to add to the slow query log any transactions that were
          retried due to parallel replication conflicts. Possibly with extra information
          such as duration of transaction and similar.

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                serg Sergei Golubchik added a comment -

                I'm not sure that slow log is a good match for this kind of events

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                serg Sergei Golubchik added a comment - I'm not sure that slow log is a good match for this kind of events

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                  • Assignee:
                    knielsen Kristian Nielsen
                    Reporter:
                    knielsen Kristian Nielsen
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                    • Created:
                      Updated: