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  1. Couchbase Server
  2. MB-61565

[BP to 7.1.5-MP] - Track first snapshot optimisation per keyspace in mutation stream reader

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    Description

      Currently, mutation stream reader tracks the enablement of first snapshot optimisation per stream. This can lead to an issue if first snap optimisation can be enabled for one keyspace and should not be enabled for other keyspace  (See linked customer ticket). 

      If the first keyspace that starts the stream enables the first snapshot optimisation, it will be applicable for all keyspaces which follow. This is incorrect and can lead to duplicate rows in the index.

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          causes

          Bug - A problem which impairs or prevents the functions of the product. MB-61608 Initial Index build time regressed in 7.1.5 MP5

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

          Bug - A problem which impairs or prevents the functions of the product. MB-61435 [BP to 7.2.5] - Track first snapshot optimisation per keyspace in mutation stream reader

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          is a backport of

          Bug - A problem which impairs or prevents the functions of the product. MB-61387 Track first snapshot optimisation per keyspace in mutation stream reader

          • Critical - Crashes, loss of data, severe memory leak.
          • Open
          mentioned in

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          For Gerrit Dashboard: MB-61565
          # Subject Branch Project Status CR V
          208961,1 Revert "MB-61565 Disable first snap optimization for MAINT_STREAM" 7.1.5 indexing Status: NEW 0 0
          208962,1 Revert "MB-61565 Track markFirstSnap per keyspace in stream reader" 7.1.5 indexing Status: NEW 0 0

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              hemant.rajput Hemant Rajput
              varun.velamuri Varun Velamuri
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                Created:
                Updated:
                Resolved:

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