Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-11177

mysqlbinlog exits silently without error when another instance connects to server

    XMLWordPrintable

Details

    • 10.2.4-4, 10.2.4-5, 10.2.5-1

    Description

      When mysqlbinlog reads binlogs from a remote server (with stop-never), it connects to the server with a certain ID, either default or explicitly set. If another instance of mysqlbinlog connects with the same ID, the previous one exits. In MySQL, it returns a non-zero exit code and a clear enough error message:

      ERROR: Got error reading packet from server: A slave with the same server_uuid/server_id as this slave has connected to the master; the first event 'mysql-bin.000001' at 4, the last event read from './mysql-bin.000051' at 4700, the last byte read from './mysql-bin.000051' at 4700.

      In MariaDB, it exits silently with success code and without error messages. It's dangerous, because it will make user believe all logs have been stored.

      Attachments

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-13448 Slave should reconnect less quickly when being disconnected due to duplicate server id

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Confirmed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-13449 Master should also log server-id collisions

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Confirmed

          Task - A task that needs to be done. MDEV-8713 Add continuous binary log backup to mysqlbinlog

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

          Activity

            People

              holyfoot Alexey Botchkov
              elenst Elena Stepanova
              Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:

                Git Integration

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