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Knowledge Base

Can’t start MariaDB: Assertion failure in thread 908 in file fut0lst.ic

 
databasedatabasesguidehostinghosting provider

Symptoms

  • Can't start MariaDB and/or Plesk SQL Server

    MySQL was stopped, attempted start - error 1067

  • The following error is logged to /var/log/mysql.log or %plesk_dir%MySQLData*.err

    InnoDB: Assertion failure in thread 908 in file fut0lst.ic line 83
    InnoDB: Failing assertion: addr.page == FIL_NULL || addr.boffset >= FIL_PAGE_DATA
    InnoDB: We intentionally generate a memory trap.

  • The MariaDB server keeps crashing, with the following records in /var/log/mysqld.log or /var/log/mariadb/mariadb.log

    190408 13:44:12 InnoDB: Assertion failure in thread 139664240350976 in file btr/btr0btr.c line 136
    InnoDB: Failing assertion: (ibool)!!page_is_comp(root) == dict_table_is_comp(index->table)
    InnoDB: We intentionally generate a memory trap.
    InnoDB: Submit a detailed bug report to http://bugs.mysql.com.
    InnoDB: If you get repeated assertion failures or crashes, even
    InnoDB: immediately after the mysqld startup, there may be
    InnoDB: corruption in the InnoDB tablespace. Please refer to
    InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-innodb-recovery.html
    InnoDB: about forcing recovery.
    12:44:12 UTC - mysqld got signal 6 ;
    InnoDB: Failing assertion: (ibool)!!page_is_comp(root) == dict_table_is_comp(index->table)
    InnoDB: We intentionally generate a memory trap.
    InnoDB: Submit a detailed bug report to http://bugs.mysql.com.
    InnoDB: If you get repeated assertion failures or crashes, even
    InnoDB: immediately after the mysqld startup, there may be
    InnoDB: corruption in the InnoDB tablespace. Please refer to
    InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-innodb-recovery.html
    InnoDB: about forcing recovery.
    12:44:12 UTC - mysqld got signal 6 ;

    [FATAL] InnoDB: The page in the doublewrite buffer is corrupt. Cannot continue operation. You can try to recover the database with innodb_force_recovery=6For more information, see Help and Support Center at http://www.mysql.com.

Cause

Severe InnoDB corruption caused by a server outage or faulty RAM module.

Resolution

  1. Replace the faulty RAM module(s) with the help of the hosting provider (if applicable)
  2. Recover the databases where possible, as instructed in the appropriate guide for the system:
    • How to fix InnoDB corruption cases for the MySQL/MariaDB databases on Plesk for Linux?
    • How to fix InnoDB corruption cases for the MySQL/MariaDB databases on Plesk for Windows?
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