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  1. MariaDB Server
  2. MDEV-32339

decreasing innodb_buffer_pool_size at runtime does not release memory

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Details

    • Bug
    • Status: Open (View Workflow)
    • Major
    • Resolution: Unresolved
    • 10.5.21
    • 10.5
    • Server
    • None

    Description

      After reducing the value of innodb_buffer_pool_size at runtime from 90G to 50G with "set global", the memory is not released to system, OOM event strikes.

      Happened to multiple servers with same configuration.

      other relevant variables:

      innodb_buffer_pool_chunk_size=134217728
      innodb_buffer_pool_instances=1

      Attachments

        Issue Links

          relates to

          Task - A task that needs to be done. MDEV-29445 reorganise innodb buffer pool (and remove buffer pool chunks)

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

          Activity

            People

              marko Marko Mäkelä
              rpizzi Rick Pizzi
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              Dates

                Created:
                Updated:

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