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  1. Couchbase Server
  2. MB-45937

The disk space shoots up and cannot be reclaimed after the cluster goes into mixed mode while upgrading on windows cluster

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Details

    • Bug
    • Resolution: Fixed
    • Major
    • 7.0.0
    • 6.6.2, Cheshire-Cat
    • qe

    Description

      1. Create a 6.6.2 cluster on windows machines. Include all services in the cluster
      2. Create buckets and create secondary indexes. Drop and recreate atleast 1 index.
      3. Try to upgrade the data nodes in the cluster via graceful failover and re-add of the nodes.

      After re-adding the node, the disk space in the non-upgraded nodes shoots up disproportionately to the data present in the cluster. And the disk space isn't reclaimed even after the data is purged or has expired from the cluster. The disk space isn't reclaimed even after compaction or after setting the meta-data purge to 1 hour and waiting for few hours.

      This is on a windows cluster, with 6 gb 6 core VMs. Upgrade path: 6.6.2 to 7.0.0-5016

      This is a regression, since previous versions upgrade hadn't run into this issue.

      Attachments

        1. 126_compaction.png
          126_compaction.png
          179 kB
        2. 126_curr-items.png
          126_curr-items.png
          320 kB
        3. 126_data-size.png
          126_data-size.png
          232 kB
        4. 126_flush_reject.png
          126_flush_reject.png
          143 kB
        5. 126_fragmentation.png
          126_fragmentation.png
          285 kB
        6. 126_total-create-update.png
          126_total-create-update.png
          346 kB
        7. 126_total-delete.png
          126_total-delete.png
          347 kB
        8. Screenshot 2021-04-27 at 1.48.50 PM.png
          Screenshot 2021-04-27 at 1.48.50 PM.png
          486 kB
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            bharath.gp Bharath G P
            bharath.gp Bharath G P
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            Dates

              Created:
              Updated:
              Resolved:

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