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  1. MariaDB Server
  2. MDEV-34233

InnoDB crashes due to corrupted ibdata1 (Assertion failure in innodb.undo_page)

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Details

    • Bug
    • Status: Needs Feedback (View Workflow)
    • Major
    • Resolution: Unresolved
    • 10.6.17
    • None
    • Platform RedHat
    • CPanel 11.118.0.11, CloudLinux 8, Virtual Machine (KVM), 178G RAM

    Description

      During the day with no events happening at the same time, innodb1 turns out corrupted.

      2024-05-23 12:12:01 8668229 [ERROR] InnoDB: Trying to read 16384 bytes at 70368744161280 outside the bounds of the file: ./ibdata1
      2024-05-23 12:12:01 8668229 [ERROR] InnoDB: File './ibdata1' is corrupted
      2024-05-23 12:12:01 0x7f0944bad700  InnoDB: Assertion failure in file /builddir/build/BUILD/cl-MariaDB106-10.6.17/mariadb-10.6.17/storage/innobase/trx/trx0purge.cc line 268
      InnoDB: Failing assertion: undo_page
      InnoDB: We intentionally generate a memory trap.
      InnoDB: Submit a detailed bug report to https://jira.mariadb.org/
      InnoDB: If you get repeated assertion failures or crashes, even
      InnoDB: immediately after the mariadbd startup, there may be
      InnoDB: corruption in the InnoDB tablespace. Please refer to
      InnoDB: https://mariadb.com/kb/en/library/innodb-recovery-modes/
      InnoDB: about forcing recovery.
      240523 12:12:01 [ERROR] mysqld got signal 6 ;
      Sorry, we probably made a mistake, and this is a bug.
      Your assistance in bug reporting will enable us to fix this for the next release.
      To report this bug, see https://mariadb.com/kb/en/reporting-bugs
      We will try our best to scrape up some info that will hopefully help
      diagnose the problem, but since we have already crashed,
      something is definitely wrong and this may fail.
      Server version: 10.6.17-MariaDB-cll-lve source revision: 15c75ad083a55e198ae78324f22970694b72f22b
      key_buffer_size=402653184
      read_buffer_size=2097152
      max_used_connections=307
      max_threads=802
      thread_count=33
      It is possible that mysqld could use up to
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 3699403 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
      Thread pointer: 0x7f078463b9a8
      Attempting backtrace. You can use the following information to find out
      where mysqld died. If you see no messages after this, something went
      terribly wrong...
      stack_bottom = 0x7f0944bacb98 thread_stack 0x49000
      /usr/sbin/mariadbd(my_print_stacktrace+0x2e)[0x55ec22da47ae]
      /usr/sbin/mariadbd(handle_fatal_signal+0x475)[0x55ec2287ed95]
      /lib64/libpthread.so.0(+0x12cf0)[0x7f0c8d514cf0]
      2024-05-23 12:12:05 0x7f0944ed1700  InnoDB: Assertion failure in file /builddir/build/BUILD/cl-MariaDB106-10.6.17/mariadb-10.6.17/storage/innobase/buf/buf0lru.cc line 281
      InnoDB: Failing assertion: !block->page.in_file()
      InnoDB: We intentionally generate a memory trap.
      InnoDB: Submit a detailed bug report to https://jira.mariadb.org/
      InnoDB: If you get repeated assertion failures or crashes, even
      InnoDB: immediately after the mariadbd startup, there may be
      InnoDB: corruption in the InnoDB tablespace. Please refer to
      InnoDB: https://mariadb.com/kb/en/library/innodb-recovery-modes/
      InnoDB: about forcing recovery.
      mariadb.service: Main process exited, code=killed, status=6/ABRT
      mariadb.service: Failed with result 'signal'.
      

      The size of the ibdata1 is about 6931087360 bytes for reference.

      This resulted in broken mini-transaction which was later recovered from via innodb_force_recovery=1 (setting the value, starting, stopping, removing the value, starting). The database is running without issues after that.

      There is no core dump logged.

      What is concerning is that the previous week the database was rsynced and migrated from CloudLinux 7. However no problems where noticed while migrating the database.

      I would like to offer more information about the incident, but non is available. If you feel that information about the following mini-transaction problem is interesting I can post that too. I post this issue hoping that someone can shed some light on what our next step would be. Known bug? Need to upgrade?

      My.cnf

      [mysqld]
      character_set_server = utf8mb4
      collation_server = utf8mb4_unicode_ci
      ft_min_word_len = 3
      innodb_buffer_pool_size = 12G
      innodb_file_per_table = 1
      key_buffer_size = 384M
      max_allowed_packet = 268435456
      max_connections = 800
      max_user_connections = 100
      max_heap_table_size = 256M
      myisam_sort_buffer_size = 64M
      myisam_use_mmap = 1
      open_files_limit = 80000
      performance-schema = 1
      read_buffer_size = 2M
      read_rnd_buffer_size = 8M
      sort_buffer_size = 2M
      table_open_cache = 4000
      thread_cache_size = 8
      tmp_table_size = 256M
      join_buffer_space_limit = 24M
      join_cache_level = 8
      join_buffer_size = 24M
      query_cache_size = 128M
      query_cache_limit = 8M
      query_cache_type = 0
      tmp_disk_table_size = 805306368
      ignore_db_dirs = lost+found
      explicit_defaults_for_timestamp = On
      optimizer_switch = ""
      sql_mode = ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE
      log_warnings=4
      tmpdir = "/var/cache/mysql"
      ssl_cert = /etc/mysql/ssl/fullchain.pem
      ssl_key = /etc/mysql/ssl/privkey.pem
      

      /var/cache/mysql is an ext4 fs with 10G space.

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              marko Marko Mäkelä
              isodude Josef Johansson
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                Updated:

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