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  1. Couchbase Server
  2. MB-63008

XDCR - Optimise and re-enable new pipeline cas poisoning check

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Details

    • Bug
    • Resolution: Unresolved
    • Major
    • Morpheus
    • Morpheus, 7.2.6, 7.6.4, Cypher
    • XDCR
    • Untriaged
    • 0
    • Unknown

    Description

      Since it was observed that preCheckCasCheck takes around 11 seconds, blocking the pipeline creation + start, it has been disabled by default in MB-63005. To enable it back some work needs to be done to reduce this overhead. Some work I can think of that can to be done:
      1. Follow-up on kv_engine to implement MB-62956 and use the new implemented API.
      2. Concurrently execute preCheckCasCheck with some other part of pipeline start (with VBMasterCheck?)
      3. Optional - We can look into if we really need max_cas getter in bucket topology service given we only use it when a new pipeline is created. (Or if a standalone call everytime a new pipeline is created will suffice)

      Attachments

        Issue Links

          causes

          Bug - A problem which impairs or prevents the functions of the product. MB-63010 [BP 7.6.3] - XDCR - Disable new pipeline cas poisoning check

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. MB-63009 [BP 7.2.6] - XDCR - Disable new pipeline cas poisoning check

          • Major - Major loss of function.
          • Closed
          depends on

          Improvement - An improvement or enhancement to an existing feature or task. MB-62956 Create a new stat or a bespoke API to retrieve max_cas information

          • Major - Major loss of function.
          • Open
          finishs with

          Bug - A problem which impairs or prevents the functions of the product. MB-63005 XDCR - Disable new pipeline cas poisoning check

          • Major - Major loss of function.
          • Resolved
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              neil.huang Neil Huang
              sumukh.bhat Sumukh Bhat
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              Dates

                Created:
                Updated:

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