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  1. MariaDB Server
  2. MDEV-23089

rpl_parallel2 fails in 10.5

Details

    Description

      mtr --repeat=10 rpl.rpl_parallel2 sometimes hangs in 10.5
      It works in 10.4.

      The problem in 10.5 started after a merge from 10.3 -> 10.5 on 2 of July that enabled the test in
      10.5. The issue is probably because of the slightly different implementation of FLUSH TABLES WITH READ LOCK in 10.5 compared to 10.4

      The hangs happens in reap of "FLUSH TABLES WITH READ LOCK" at line
      157 in suite/rpl/t/rpl_parallel2.test

      Other things:

      • The comments in ba02550166eb39c0375a6422ecaa4731421250b6 may be useful to find and fix the bug
      • The code for flush_tables_with_read_lock is in sql_reload.cc. I would suggest that one looks at the differences
        between the functions in 10.4 and 10.5 to try to find out what is going on.

      Attachments

        1. gdb.txt
          52 kB
          Sachin Setiya

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-23381 rpl_parallel2 fails in 10.1 to 10.3 if slave_parallel_mode is changed to optimistic

          • Major - Major loss of function.
          • Closed

          Activity

            Transition Time In Source Status Execution Times
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            Open In Progress
            		8d 18h 16m 1
            Sachin Setiya (Inactive) made transition -
            In Progress Stalled
            		13d 19h 8m 1
            Michael Widenius made transition -
            Stalled In Progress
            		6d 4m 1
            Michael Widenius made transition -
            In Progress In Review
            		22h 9m 1
            Michael Widenius made transition -
            In Review Stalled
            		15s 1
            Sachin Setiya (Inactive) made transition -
            Stalled Closed
            		1d 57m 1

            People

              sachin.setiya.007 Sachin Setiya (Inactive)
              monty Michael Widenius
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              Dates

                Created:
                Updated:
                Resolved:

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