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  1. MariaDB Server
  2. MDEV-28766

MDEV-28111 breaks innodb_flush_log_at_trx_commit=2

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      MDEV-28111 and specifically commit c4c88307091 breaks the meaning of innodb_flush_log_at_trx_commit = 2 by enabling O_DIRECT for the redo log.

      O_DIRECT should not be used when innodb_flush_log_at_trx_commit = 2 is set. Since this variable is dynamic, it has not only to be checked at server startup, but each time the variable is written to.

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          is caused by

          Bug - A problem which impairs or prevents the functions of the product. MDEV-28111 Redo log writes are being buffered on Linux for no good reason

          • Major - Major loss of function.
          • Closed
          relates to

          New Feature - A new feature of the product, which has yet to be developed. MDEV-30136 Map innodb_flush_method to new settable Booleans innodb_{log,data}_file_{buffering,write_through}

          • 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-31642 Upgrade from 10.7 or earlier may crash if innodb_log_file_buffering=OFF

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

          Task - A task that needs to be done. MDEV-24854 Change innodb_flush_method=O_DIRECT by default

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-33894 MariaDB does unexpected storage read IO for the redo log

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

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              marko Marko Mäkelä
              axel Axel Schwenke
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