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  1. Couchbase Server
  2. MB-35270

[Durability] Rebalance stuck during replica update

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Details

    • Triaged
    • Centos 64-bit
    • No
    • KV-Engine MH Beta part 2

    Description

      Seeing rebalance getting stuck at 45.8984375% during replica update case.

      Scenario:

      1. 4 node cluster, couchbase bucket (replica=0)
      2. Loaded 2 docs with durability=MAJORITY
      3. Updated replica from 0 -> 3 in incremental manner

      Observation:

      Rebalance struck when updating replica=3 from replica=2 and rebalance.

      cbcollect_info:
      https://cb-jira.s3.us-east-2.amazonaws.com/logs/MB35258_on_replica_update/collectinfo-2019-07-24T102756-ns_1%4010.112.191.101.zip
      https://cb-jira.s3.us-east-2.amazonaws.com/logs/MB35258_on_replica_update/collectinfo-2019-07-24T102756-ns_1%4010.112.191.102.zip
      https://cb-jira.s3.us-east-2.amazonaws.com/logs/MB35258_on_replica_update/collectinfo-2019-07-24T102756-ns_1%4010.112.191.103.zip
      https://cb-jira.s3.us-east-2.amazonaws.com/logs/MB35258_on_replica_update/collectinfo-2019-07-24T102756-ns_1%4010.112.191.104.zip
      Rebalance UI status:

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          duplicates

          Bug - A problem which impairs or prevents the functions of the product. MB-35245 [Chain Rebalance]: Subsequent rebalance in of 2 nodes failed because Disk ckpt streamed as Memory ckpt

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
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              ashwin.govindarajulu Ashwin Govindarajulu
              ashwin.govindarajulu Ashwin Govindarajulu
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              Dates

                Created:
                Updated:
                Resolved:

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