Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-4946

IO thread should expose its current GTID position

        Details

        • Type: Bug
        • Status: Closed
        • Priority: Major
        • Resolution: Fixed
        • Affects Version/s: 10.0.4
        • Fix Version/s: 10.0.7
        • Component/s: None
        • Labels:
          None

          Description

          Master_info already has the field gtid_current_pos representing GTID of the last full transaction saved into relay log. It would be extremely useful to have this field exposed e.g. in the result of SHOW SLAVE STATUS.

          This information will be useful in failover scenarios. Currently when master dies we can't know which of the slaves has all the latest transactions in their relay log until SQL thread executes all of them. But if Master_info::gtid_current_pos is visible we'll be able to know exactly what transactions each slave has and which GTID position it will be at when SQL thread catches up with all relay log events.

            Gliffy Diagrams

              Attachments

                Activity

                Hide
                Permalink
                knielsen Kristian Nielsen added a comment -

                Pushed to 10.0-base.

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

                  People

                  • Assignee:
                    knielsen Kristian Nielsen
                    Reporter:
                    pivanof Pavel Ivanov
                  • Votes:
                    0 Vote for this issue
                    Watchers:
                    1 Start watching this issue

                    Dates

                    • Created:
                      Updated:
                      Resolved: