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  1. Ignite
  2. IGNITE-7017

Reconsider WAL archive strategy

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Details

    • Task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.3
    • 2.5
    • None
    • None

    Description

      Currently, we write WAL files in work directory and then copy them to the archive after the segment is closed.
      This was done to overcome XFS bug which leads to a double fsync cost immediately after file creation. This approach leads to excessive disk usage and can be optimized, especially for LOG_ONLY mode.

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          incorporates

          Task - A task that needs to be done. IGNITE-7582 Document 'No Archiver' WAL mode

          • Major - Major loss of function.
          • Resolved
          is related to

          Bug - A problem which impairs or prevents the functions of the product. IGNITE-7175 Throttling is not applied to page allocation

          • Major - Major loss of function.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. IGNITE-7584 Smooth decrease WAL write speed if low work segments left

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

          Bug - A problem which impairs or prevents the functions of the product. IGNITE-7507 Ignite node performance drop during checkpoint start: store metapage eviction causes long checkpoint lock hold time

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. IGNITE-7074 NPE when WAL path and WAL archive path are the same

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          supercedes

          Test - A new unit, integration or system test. IGNITE-6802 NullPointerException when WAL store and WAL archive paths are same

          • Major - Major loss of function.
          • Resolved
          links to

          Web Link GitHub Pull Request #3140

          Web Link GitHub Pull Request #3200

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            People

              dpavlov Dmitry Pavlov
              agoncharuk Alexey Goncharuk
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              Dates

                Created:
                Updated:
                Resolved: