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  1. Couchbase Server
  2. MB-32102

Recover Index from in-memory snapshot

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    Description

      This is to limit the amount of data that needs to catch up upon KV data loss.

      Indexer currently keeps only the latest vbuuid in the timestamp. Indexer could store 2-3 vbuuids in-memory if the seqno has not changed between those(and possibly persist in disk snapshot as well). If DCP asks to rollback to 0, indexer can first retry with stream request with the stored vbuuids before going to disk snapshots.

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          relates to

          Improvement - An improvement or enhancement to an existing feature or task. MB-32227 Improve dcp rollback handling

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          For Gerrit Dashboard: MB-32102
          # Subject Branch Project Status CR V
          104353,9 MB-32102 store last vbuuid for retry during rollback unstable indexing Status: MERGED +2 +1
          120530,1 Automated test scenario for MB-32102 master testrunner Status: ABANDONED 0 0
          120531,1 Adding test for #MB-32102 master testrunner Status: ABANDONED 0 0
          120532,3 Adding test automation for #MB-32102 master testrunner Status: MERGED +2 +1

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              mihir.kamdar Mihir Kamdar (Inactive)
              jeelan.poola Jeelan Poola
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                Updated:
                Resolved:

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