Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-37609

Parallel Replication to Support MySQL 8+ Master

    XMLWordPrintable

Details

    Description

      A MariaDB replica cannot be configured to use parallel replication if it is consuming from a master that is MySQL 8.0 or higher. This can be problematic for migration, as replication wouldn't be able to keep up with busy workloads. The current workaround for this is to perform migrations during a period of low expected traffic.

      The main factor that prevents this is that the MariaDB 10.0+ primary embeds its binlog events with metadata that the replica uses to make scheduling decisions (e.g. for DDLs and non-transactional transactions), which the MySQL 8+ master doesn't include.

      Attachments

        Issue Links

          duplicates

          New Feature - A new feature of the product, which has yet to be developed. MDEV-10066 Implement a parallel replication mode that works with a MySQL master

          • Major - Major loss of function.
          • Open

          New Feature - A new feature of the product, which has yet to be developed. MDEV-34396 Translate MySQL GTIDs to Allow Parallel Replication in Migrations

          • Major - Major loss of function.
          • Open
          is part of

          Bug - A problem which impairs or prevents the functions of the product. MDEV-35642 Support replication from MySQL 8.0 to MariaDB

          • Major - Major loss of function.
          • Stalled

          Activity

            People

              Unassigned Unassigned
              bnestere Brandon Nesterenko
              Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:

                Time Tracking

                  Estimated:
                  Original Estimate - 15d
                  15d
                  Remaining:
                  0d
                  Logged:
                  Time Not Required
                  Not Specified

                  Git Integration

                    Error rendering 'com.xiplink.jira.git.jira_git_plugin:git-issue-webpanel'. Please contact your Jira administrators.