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  1. Couchbase Server
  2. MB-56798

[BP 7.1.5] - XDCR - global OSO mode off switch

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Details

    • Improvement
    • Resolution: Fixed
    • Major
    • 7.1.5
    • 7.0.0, 7.0.1, 7.0.2, 7.0.3, 7.0.4, 7.0.5, 7.1.0, 7.1.1, 7.1.2, 7.2.0, 7.1.3
    • XDCR
    • 0

    Description

      XDCR can turn OSO mode off at a per-replication level, or at a default replication level. But, in certain cases where OSO could cause performance issues, we want a fail-safe switch to be able to turn off OSO mode globally.

      This fail safe needs to be developed so that it can be applied globally to any currently deployed replications.

       

      Issue Resolution
      Data streamed from the Data Service over XDCR should always be streamed in order by mutation id. However, in some scenarios, for efficiency, the Data Service streamed records that were not ordered by mutation id. In certain situations, this out-of-sequence-order [OSO] caused performance issues. OSO mode is now available as a global override to be switched off for any currently deployed replications to avoid performance issues.

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        Issue Links

          is a backport of

          Improvement - An improvement or enhancement to an existing feature or task. MB-56503 XDCR - global OSO mode off switch

          • Major - Major loss of function.
          • Closed
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              ayush.nayyar Ayush Nayyar
              neil.huang Neil Huang
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              Dates

                Created:
                Updated:
                Resolved:

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