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  1. MariaDB Server
  2. MDEV-4514

After increasing user name length mysql.db is reported broken and event scheduler does not start

    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 5.5.31
    • Component/s: None
    • Labels:
      None

      Description

      Test case:

      --source include/not_embedded.inc
       
      alter table mysql.user modify User char(80) binary not null default '';
      alter table mysql.db modify User char(80) binary not null default '';
      alter table mysql.tables_priv modify User char(80) binary not null default '';
      alter table mysql.columns_priv modify User char(80) binary not null default '';
      alter table mysql.procs_priv modify User char(80) binary not null default '';
      alter table mysql.proc modify definer char(141) collate utf8_bin not null default '';
      alter table mysql.event modify definer char(141) collate utf8_bin not null default '';
      flush privileges;
       
      --enable_reconnect
      --append_file $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
      restart
      EOF
      --shutdown_server 60
      --source include/wait_until_connected_again.inc
       
      set global event_scheduler = on;
      select @@event_scheduler;
       
      alter table mysql.user modify User char(16) binary not null default '';
      alter table mysql.db modify User char(16) binary not null default '';
      alter table mysql.tables_priv modify User char(16) binary not null default '';
      alter table mysql.columns_priv modify User char(16) binary not null default '';
      alter table mysql.procs_priv modify User char(16) binary not null default '';
      alter table mysql.proc modify definer char(77) collate utf8_bin not null default '';
      alter table mysql.event modify definer char(77) collate utf8_bin not null default '';
       
      set global event_scheduler = off;

      Output:

      CURRENT_TEST: bug.t1
      mysqltest: At line 19: query 'set global event_scheduler = on' failed: 1577: Cannot proceed because system tables used by Event Scheduler were found damaged at server start

      Error log:

      130512 17:22:23 [ERROR] Incorrect definition of table mysql.db: expected column 'User' at position 2 to have type char(16), found type char(80).
      130512 17:22:23 [ERROR] Event Scheduler: An error occurred when initializing system tables. Disabling the Event Scheduler.

      bzr version-info

      revision-id: wlad@montyprogram.com-20130509212557-5cdelkdvf7t61062
      revno: 3756
      branch-nick: 5.5

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              • Assignee:
                serg Sergei Golubchik
                Reporter:
                elenst Elena Stepanova
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                • Created:
                  Updated:
                  Resolved: