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  1. Couchbase Server
  2. MB-61941

[System Test] Rebalance hung for FTS Node

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Details

    • Bug
    • Resolution: Duplicate
    • Major
    • 7.6.2
    • 7.6.2
    • fts
    • None
    • Untriaged
    • 0
    • Unknown

    Description

      While the system test is in progress, multiple rebalances were not successful. Also, if the rebalance is in progress, it takes lot of time to complete. The resources for the cluster are also not high when the rebalance is in progress. Refer to the image attached.

      Steps:

      1. Created an on-prem cluster with 12 nodes. Out of which 5 are fts nodes.
      2. Each node has atleast 12gb of memory.
      3. Created one scope and one collection under that scope
      4. Loaded 5 million documents for normal vectors and 10k documents with xattrs using the sift dataset
      5. Created two indexes with 90 partitions acoss 5 fts nodes. One index indexes the normal vector data and the other index indexes the xattrs vectors.
      6. Run knn queries
      7. Mutated the documents and then again ran the knn query
      8. Rebalanced in an FTS node
      9. Perform mutations and then again run the knn queries
      10. Rebalanced out an FTS node

       

      Logs:

      Attachments

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. MB-61753 [System Test] Rebalancing FTS node takes infinite amount of time

          • Major - Major loss of function.
          • Closed
          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. MB-61940 [System Test] FTS Indexing Stopped while rebalancing the cluster

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MB-61942 [System Test] FTS service exited with OOM error

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
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              koushal.sharma Koushal Sharma
              koushal.sharma Koushal Sharma
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              Dates

                Created:
                Updated:
                Resolved:

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