Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-30126

mariadb-install-db fails to install under --old-mode="" causing ("max key length is 2300 bytes")

Details

    Description

      In the official MariaDB container image, the old_mode variable - when set at the command line - behaves inconsistently with a locally-installed version of MariaDB 10.6.11 on the same machine.

      In addition, the command-line argument handling is inconsistent for string-valued flags when setting them to the empty string.

      Environment:

      • Docker client and server: Docker Engine Community, 20.10.21
      • Host: Rocky Linux 8.7 on x64
      • MariaDB version: 10.6.11, installed via RPM or run inside a Docker container.

      docker run --rm -e=MARIADB_ALLOW_EMPTY_ROOT_PASSWORD=1 mariadb:10.6 --old-mode=""

      2022-11-29 11:05:05+00:00 [Note] [Entrypoint]: Entrypoint script for MariaDB Server 1:10.6.11+maria~ubu2004 started.
      		 
      2022-11-29 11:05:05+00:00 [Note] [Entrypoint]: Switching to dedicated user 'mysql'
      		 
      2022-11-29 11:05:05+00:00 [Note] [Entrypoint]: Entrypoint script for MariaDB Server 1:10.6.11+maria~ubu2004 started.
      		 
      2022-11-29 11:05:05+00:00 [Note] [Entrypoint]: Initializing database files
      		 
      ERROR: 1071  Specified key was too long; max key length is 2300 bytes
      		 
      2022-11-29 11:05:05 0 [ERROR] Aborting
      		 
       
      		 
      Installation of system tables failed!  Examine the logs in
      		 
      /var/lib/mysql/ for more information.
      		 
       
      		 
      The problem could be conflicting information in an external
      		 
      my.cnf files. You can ignore these by doing:
      		 
       
      		 
          shell> /usr/bin/mariadb-install-db --defaults-file=~/.my.cnf
      		 
       
      		 
      You can also try to start the mysqld daemon with:
      		 
       
      		 
          shell> /usr/sbin/mariadbd --skip-grant-tables --general-log &
      		 
       
      		 
      and use the command line tool /usr/bin/mariadb
      		 
      to connect to the mysql database and look at the grant tables:
      		 
       
      		 
          shell> /usr/bin/mysql -u root mysql
      		 
          mysql> show tables;
      		 
       
      		 
      Try 'mysqld --help' if you have problems with paths.  Using
      		 
      --general-log gives you a log in /var/lib/mysql/ that may be helpful.
      		 
       
      		 
      The latest information about mysql_install_db is available at
      		 
      https://mariadb.com/kb/en/installing-system-tables-mysql_install_db
      		 
      You can find the latest source at https://downloads.mariadb.org and
      		 
      the maria-discuss email list at https://launchpad.net/~maria-discuss
      		 
       
      		 
      Please check all of the above before submitting a bug report
      		 
      at https://mariadb.org/jira

      docker run --rm -e=MARIADB_ALLOW_EMPTY_ROOT_PASSWORD=1 mariadb:10.6 --old-mode ""

      2022-11-29 11:06:50+00:00 [Note] [Entrypoint]: Entrypoint script for MariaDB Server 1:10.6.11+maria~ubu2004 started.
      		 
      2022-11-29 11:06:50+00:00 [Note] [Entrypoint]: Switching to dedicated user 'mysql'
      		 
      2022-11-29 11:06:50+00:00 [Note] [Entrypoint]: Entrypoint script for MariaDB Server 1:10.6.11+maria~ubu2004 started.
      		 
      2022-11-29 11:06:50+00:00 [Note] [Entrypoint]: Initializing database files
      		 
      2022-11-29 11:06:50 0 [ERROR] /usr/sbin/mariadbd: Error while setting value '--default-time-zone=SYSTEM' to 'old_mode'
      		 
       
      		 
      Installation of system tables failed!  Examine the logs in
      		 
      /var/lib/mysql/ for more information.
      		 
      [...]

      Despite the message given, no logs are left in /var/lib/mysql/ inside the container.

      The behaviour changes when the /var/lib/mysql directory is set as a mount inside the container. The first run fails with the "2300 bytes" error, while the second run with the same volume mounted succeeds. (e.g. docker run --mount=type=volume,source=mariadb-test,destination=/var/lib/mysql --rm -e=MARIADB_ALLOW_EMPTY_ROOT_PASSWORD=1 mariadb:10.6 --old-mode="")

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-28915 mysql_upgrade fails due to old_mode="", with "Cannot load from mysql.proc. The table is probably corrupted"

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

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              Unassigned Unassigned
              seang Sean Gebbett
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                Updated:

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