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  1. MariaDB Server
  2. MDEV-29069

ER_KEY_NOT_FOUND upon concurrent online auto-increment addition and DELETE

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    Description

      --source include/have_debug_sync.inc
      --source include/have_innodb.inc
       
      create table t1 (a int) engine=InnoDB;
      insert into t1 values (10),(20),(30);
      --send
        set debug_sync= 'now wait_for downgraded';
       
      --connect (con_alter,localhost,root,,test)
      set debug_sync= 'alter_table_online_downgraded signal downgraded wait_for goforit';
      --send
        alter table t1 add pk int auto_increment primary key, algorithm=copy, lock=none;
       
      --connection default
      --reap
      delete from t1 where a = 20;
      set debug_sync= 'now signal goforit';
       
      --connection con_alter
      --reap
      select * from t1;
      show create table t1;
       
      # Cleanup
      drop table t1;
      set debug_sync= reset;
      

      ALTER fails with:

      bb-10.10-MDEV-16329 49ad87590

      mysqltest: At line 20: query 'reap' failed: ER_KEY_NOT_FOUND (1032): Can't find record in 't1'
      

      For a side note, in the client the error gets scrambled reliably (at least for me), like this:

      MariaDB [test]> alter table t1 add pk int auto_increment primary key, algorithm=copy, lock=none;
      ERROR 1032 (HY000): Can't find record in 't1'e done
      

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            elenst Elena Stepanova created issue -
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            Assignee Sergei Golubchik [ serg ] Nikita Malyavin [ nikitamalyavin ]
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            nikitamalyavin Nikita Malyavin made changes -
            Status Stalled [ 10000 ] In Progress [ 3 ]
            serg Sergei Golubchik made changes -
            Fix Version/s 10.11 [ 27614 ]
            Fix Version/s 10.10 [ 27530 ]
            nikitamalyavin Nikita Malyavin made changes -
            Assignee Nikita Malyavin [ nikitamalyavin ] Sergei Golubchik [ serg ]
            Status In Progress [ 3 ] In Review [ 10002 ]
            serg Sergei Golubchik made changes -
            Status In Review [ 10002 ] In Testing [ 10301 ]
            serg Sergei Golubchik made changes -
            Status In Testing [ 10301 ] Stalled [ 10000 ]
            serg Sergei Golubchik made changes -
            Assignee Sergei Golubchik [ serg ] Nikita Malyavin [ nikitamalyavin ]
            serg Sergei Golubchik made changes -
            Labels online-ddl
            nikitamalyavin Nikita Malyavin made changes -
            Status Stalled [ 10000 ] In Progress [ 3 ]
            serg Sergei Golubchik made changes -
            serg Sergei Golubchik made changes -
            nikitamalyavin Nikita Malyavin made changes -
            Assignee Nikita Malyavin [ nikitamalyavin ] Sergei Golubchik [ serg ]
            Status In Progress [ 3 ] In Review [ 10002 ]
            serg Sergei Golubchik made changes -
            Assignee Sergei Golubchik [ serg ] Nikita Malyavin [ nikitamalyavin ]
            Status In Review [ 10002 ] Stalled [ 10000 ]
            nikitamalyavin Nikita Malyavin made changes -
            Status Stalled [ 10000 ] In Progress [ 3 ]
            nikitamalyavin Nikita Malyavin made changes -
            Assignee Nikita Malyavin [ nikitamalyavin ] Sergei Golubchik [ serg ]
            Status In Progress [ 3 ] In Review [ 10002 ]
            serg Sergei Golubchik made changes -
            Assignee Sergei Golubchik [ serg ] Nikita Malyavin [ nikitamalyavin ]
            Status In Review [ 10002 ] Stalled [ 10000 ]
            nikitamalyavin Nikita Malyavin made changes -
            Assignee Nikita Malyavin [ nikitamalyavin ] Sergei Golubchik [ serg ]
            Status Stalled [ 10000 ] In Review [ 10002 ]
            serg Sergei Golubchik made changes -
            Fix Version/s 10.12 [ 28320 ]
            Fix Version/s 10.11 [ 27614 ]
            serg Sergei Golubchik made changes -
            Status In Review [ 10002 ] In Testing [ 10301 ]
            ralf.gebhardt Ralf Gebhardt made changes -
            Fix Version/s 11.1 [ 28549 ]
            Fix Version/s 11.0 [ 28320 ]
            serg Sergei Golubchik made changes -
            Fix Version/s N/A [ 14700 ]
            Fix Version/s 11.1 [ 28549 ]
            serg Sergei Golubchik made changes -
            Resolution Fixed [ 1 ]
            Status In Testing [ 10301 ] Closed [ 6 ]
            elenst Elena Stepanova made changes -
            serg Sergei Golubchik made changes -
            Fix Version/s 11.2.1 [ 29034 ]
            Fix Version/s N/A [ 14700 ]

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              serg Sergei Golubchik
              elenst Elena Stepanova
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                Resolved:

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