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  1. MariaDB Server
  2. MDEV-31058

ER_KEY_NOT_FOUND upon concurrent CHANGE column to autoinc and DML

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    Description

      Notes:

      • A fix for MDEV-31043 is already in the branch. Besides, this time the failure affects transactional engines as well, reproducible with at least InnoDB, MyISAM, Aria, HEAP.
      • The test case is non-deterministic, run with --repeat=N. It fails for me on almost every attempt, but it can vary on different machines and builds.
      • The second table (t2) seems to be important somehow, at least I couldn't replace its operation with just a sleep.

      --source include/have_sequence.inc
      		 
       
      		 
      CREATE TABLE t1 (b int);
      		 
      INSERT INTO t1 VALUES (0),(0);
      		 
       
      		 
      CREATE TABLE t2 (a int);
      		 
      INSERT INTO t2 (a) select seq from seq_1_to_128;
      		 
       
      		 
      --connect (con1,localhost,root,,)
      		 
      --send
      		 
        ALTER TABLE t1 MODIFY b SERIAL;
      		 
       
      		 
      --connection default
      		 
      DELETE FROM t2 ORDER BY a LIMIT 1;
      		 
      DELETE FROM t1 ORDER BY b LIMIT 2;
      		 
       
      		 
      --connection con1
      		 
      --reap
      		 
       
      		 
      # Cleanup
      		 
      DROP TABLE t1, t2;

      bb-11.0-oalter 6f5427417eff

      		 
      mysqltest: At line 18: query 'reap' failed: ER_KEY_NOT_FOUND (1032): Can't find record in 't1'

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          causes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-31128 Server crashes in Rows_log_event::find_row upon concurrent DML and ALTER

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

          Bug - A problem which impairs or prevents the functions of the product. MDEV-31172 Server crash or ASAN errors in online_alter_check_autoinc

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

          Bug - A problem which impairs or prevents the functions of the product. MDEV-31128 Server crashes in Rows_log_event::find_row upon concurrent DML and ALTER

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

          Bug - A problem which impairs or prevents the functions of the product. MDEV-31136 Online ALTER is allowed on master but fails on slave with ER_ALTER_OPERATION_NOT_SUPPORTED_REASON

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

          Bug - A problem which impairs or prevents the functions of the product. MDEV-31172 Server crash or ASAN errors in online_alter_check_autoinc

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

          Task - A task that needs to be done. MDEV-16329 Engine-independent online ALTER TABLE

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed
          relates to

          Technical task - A technical task. MDEV-28808 Test MDEV-16329 (ALTER ONLINE TABLE) - Core server part

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

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              nikitamalyavin Nikita Malyavin
              elenst Elena Stepanova
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              Dates

                Created:
                Updated:
                Resolved:

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