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  1. MariaDB Server
  2. MDEV-37634

mariabackup: Highly suspicious "Skip table ... at it is in exclude list"

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Details

    • Bug
    • Status: Needs Feedback (View Workflow)
    • Major
    • Resolution: Unresolved
    • 10.11.14
    • None
    • mariabackup
    • None
    • RHEL 9.6, with mariadb from mariadb repo (not the RHEL included version)

    Description

      Running a backup with:

      mariabackup --backup --host=localhost --port=3306 --parallel=2 --galera-info --extra-lsndir=/data/mariabackup --stream=mbstream | pigz > /data/mariabackup/full_20250910.backup.stream.gz
      

      We observe the databases and tables scrolling by, as they are backupped.
      However, we also see many "Skip table" lines like:

      > <snip>
      > [00] 2025-09-10 14:54:00 Started BACKUP STAGE BLOCK_DDL
      > [00] 2025-09-10 14:54:00 Acquired locks for BACKUP STAGE BLOCK_DDL
      > [00] 2025-09-10 14:54:00 Start scanning common engine tables, need backup locks: 1, collect log and stat tables: 0
      > [00] 2025-09-10 14:54:00 Skip table 533.lime_answers at it is in exclude list
      > [00] 2025-09-10 14:54:00 Skip table 533.lime_conditions at it is in exclude list
      > [00] 2025-09-10 14:54:00 Skip table 533.lime_assessments at it is in exclude list
      > [00] 2025-09-10 14:54:00 Skip table 533.lime_assessments at it is in exclude list
      > [00] 2025-09-10 14:54:00 Skip table 533.lime_asset_version at it is in exclude list
      > [00] 2025-09-10 14:54:00 Skip table 533.lime_asset_version at it is in exclude list
      > [00] 2025-09-10 14:54:00 Skip table 533.lime_defaultvalues at it is in exclude list
      > [00] 2025-09-10 14:54:00 Skip table 533.lime_defaultvalue_l10ns at it is in exclude list
      > [00] 2025-09-10 14:54:00 Skip table 533.lime_boxes at it is in exclude list
      > [00] 2025-09-10 14:54:00 Skip table 533.lime_defaultvalue_l10ns at it is in exclude list
      > <snip>
      

      More info on some of the skipped tables:

      MariaDB [ls533]> SHOW TABLE STATUS WHERE Name = 'lime_answers';
      +--------------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+---------------------+--------------------+----------+----------------+---------+--------------------+-----------+
      | Name         | Engine | Version | Row_format | Rows | Avg_row_length | Data_length | Max_data_length | Index_length | Data_free | Auto_increment | Create_time         | Update_time         | Check_time          | Collation          | Checksum | Create_options | Comment | Max_index_length   | Temporary |
      +--------------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+---------------------+--------------------+----------+----------------+---------+--------------------+-----------+
      | lime_answers | MyISAM |      10 | Dynamic    | 2770 |             21 |       59072 | 281474976710655 |       108544 |         0 |           4542 | 2024-07-22 14:08:28 | 2025-08-28 18:54:06 | 2024-07-22 14:08:28 | utf8mb4_unicode_ci |     NULL |                |         | 288230376151710720 | N         |
      +--------------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+---------------------+--------------------+----------+----------------+---------+--------------------+-----------+
       
      MariaDB [ls533]> SHOW TABLE STATUS WHERE Name = 'lime_defaultvalues';
      +--------------------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+---------------------+--------------------+----------+----------------+---------+--------------------+-----------+
      | Name               | Engine | Version | Row_format | Rows | Avg_row_length | Data_length | Max_data_length | Index_length | Data_free | Auto_increment | Create_time         | Update_time         | Check_time          | Collation          | Checksum | Create_options | Comment | Max_index_length   | Temporary |
      +--------------------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+---------------------+--------------------+----------+----------------+---------+--------------------+-----------+
      | lime_defaultvalues | MyISAM |      10 | Dynamic    |  182 |             20 |        3640 | 281474976710655 |         9216 |         0 |            195 | 2024-07-22 14:08:28 | 2025-08-28 16:32:30 | 2024-07-22 14:08:28 | utf8mb4_unicode_ci |     NULL |                |         | 288230376151710720 | N         |
      +--------------------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+---------------------+--------------------+----------+----------------+---------+--------------------+-----------+
      

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              Unassigned Unassigned
              mourikjan mourik jan heupink
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                Updated:

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