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  1. MariaDB Server
  2. MDEV-36017

Fatal InnoDB error: Unknown error Temp file write failure

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    • Can result in hang or crash
    • Q3/2025 Maintenance

    Description

      The last few days one of our 10.11.10 galera clusters is crashing completely with the follow error: [ERROR] [FATAL] InnoDB: Unknown error Temp file write failure

      I've attached the full log.

      Looking at the log it seems to be caused by an OPTIMIZE. The table that is being optimized has about 6.7M rows, about 2M are added and removed each day.

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              thiru Thirunarayanan Balathandayuthapani
              rtuk Rick Tuk
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