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  1. MariaDB Server
  2. MDEV-30000

make mariadb-backup to force an innodb checkpoint

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      Since MDEV-23855 InnoDB can do checkpoints much more rarely. This improves performance under write-heavy load, but makes mariadb-backup create huge incremental backups (since the last checkpoint).

      One way to solve it would be to let mariadb-backup to force an InnoDB checkpoint before a backup. There are many ways of doing it, innodb.page_cleaner test shows one of them, marko knows more. Perhaps it should be optional, but, likely, enabled by default.

      Alternatively, InnoDB can force a checkpoint automatically when entering a certain backup stage.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-24537 innodb_max_dirty_pages_pct_lwm=0 lost its special meaning

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-24949 Enabling idle flushing (possible regression from MDEV-23855)

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-26626 InnoDB fails to advance the log checkpoint

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

          Bug - A problem which impairs or prevents the functions of the product. MDEV-31410 mariadb-backup prepare crash with InnoDB: Missing FILE_CREATE, FILE_DELETE or FILE_MODIFY before FILE_CHECKPOINT

          • Major - Major loss of function.
          • Closed
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              serg Sergei Golubchik
              serg Sergei Golubchik
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