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  1. MariaDB Server
  2. MDEV-5363

Make parallel replication waits killable

        Details

        • Type: Bug
        • Status: Closed
        • Priority: Major
        • Resolution: Fixed
        • Affects Version/s: 10.0.6
        • Fix Version/s: None
        • Component/s: None
        • Labels:

          Description

          The parallel replication feature (MDEV-4506) has some potentially long-running
          waits, when a transaction in one worker thread waits for another to commit.

          These waits are currently not killable. This is especially a problem if the
          waits end up deadlocked on one another, which can happen if the parallel
          replication feature is used incorrectly.

          All relevant waits need to be implemented in a way that allows them to be
          killed. And in case of kill, the code needs to handle the error and correctly
          roll back the killed transaction and so on.

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                Issue Links

                relates to

                Task - A task that needs to be done. MDEV-4506 MWL#184: Parallel replication of group-committed transactions

                • Critical - Crashes, loss of data, severe memory leak.
                • Closed

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                  knielsen Kristian Nielsen added a comment -

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                  knielsen Kristian Nielsen added a comment - Pushed to 10.0-base

                    People

                    • Assignee:
                      knielsen Kristian Nielsen
                      Reporter:
                      knielsen Kristian Nielsen
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                      Dates

                      • Created:
                        Updated:
                        Resolved: