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  1. Nuxeo Platform
  2. NXP-27303

Overflow record filter should handle records with duplicate key

    Details

    • Release Notes Summary:
      Conflicts on external storage are prevented when using overflow record filter.
    • Tags:
    • Sprint:
      nxcore 11.1.8 / 11.1.9
    • Story Points:
      2

      Description

      NXP-26691 introduces a record filter that persists big value into external storage (a key-value store or a transient store).

      The key used for the storage is based on the record key.

      This creates a conflict if different records use the same key. At best the consumer will read the latest write or it will not find the value because of a race condition in the storage (NXP-27292).

      To prevent this conflict the key used by the storage must be unique.

      This can be easily done by combining the record's key and the record's watermark.

       

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