Uploaded image for project: 'Couchbase Server'
  1. Couchbase Server
  2. MB-34402

DM::getHighCompletedSeqno returns 0 after Warmup

    XMLWordPrintable

Details

    Description

      At Warmup, while we read the HCS from disk (from the local document) into the cached vbstate, we don't update the value into the DurabilityMonitor.
      Given that the DM::getHighCompletedSeqno function is used for stats, there could be a time window where a stats-call returns HCS=0 while the actual value is different.

      Note that immediately after Warmup the HCS in DurabilityMonitor is not used for anything other than stats. As soon as Prepare are added and completed, the the HCS will start updating correctly.

      Attachments

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. MB-34910 HCS and HPS not loaded into DM at warmup [ETA 2019/7/17]

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          No reviews matched the request. Check your Options in the drop-down menu of this sections header.

          Activity

            People

              drigby Dave Rigby (Inactive)
              paolo.cocchi Paolo Cocchi
              Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:

                Gerrit Reviews

                  There are no open Gerrit changes

                  PagerDuty