Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-25709

Replication IO_Thread Connecting Primary server handshake call "SELECT GTID_BINLOG_POS" even when MASTER_USE_GITD=NO and GTID is disabled

    XMLWordPrintable

Details

    • Bug
    • Status: Closed (View Workflow)
    • Critical
    • Resolution: Duplicate
    • 10.2(EOL), 10.3(EOL), 10.4(EOL), 10.5
    • 11.4.1
    • Replication
    • None

    Description

      Replication IO_Thread call SELECT GTID_BINLOG_POS even when MASTER_USE_GTID=NO and GTID is disabled.

      Id: 49525
      User: replica
      Host: XXXXX.XXXX.XXXX.XXXXX
      db: NULL
      Command: Query
      Time: 61
      State: executing
      Info: SELECT binlog_gtid_pos('mysql-binlog.XXXXX',XXXXXXXX)
      Progress: 0.000
      
      

      ..
      ...
      ......
      Using_Gtid: No
      Gtid_IO_Pos:
      Replicate_Do_Domain_Ids:
      Replicate_Ignore_Domain_Ids:
      Parallel_Mode: conservative
      SQL_Delay: 0
      SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
      
      

      This unnecessary query execution can hang IO thread for significant time, Causing slave lag (MDEV-25764)

      Attachments

        Issue Links

          Activity

            People

              Elkin Andrei Elkin
              pramod.mahto@mariadb.com Pramod Mahto
              Votes:
              1 Vote for this issue
              Watchers:
              11 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.