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  1. Core Server
  2. SERVER-37760

New shard added, chunk migration starts throwing errors after a few chunks transferred

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    • Icon: Question Question
    • Resolution: Incomplete
    • Icon: Major - P3 Major - P3
    • None
    • 3.6.8
    • Sharding
    • None

    Description

      MDB 3.6.8 with MMAP, sharded cluster – After moving 2 chunks to the new shard, Balancer is throwing this error and not moving any chunks to a newly added shard –

      Error occurred while committing the migration. Performing a majority write against the config server to obtain its latest optime :: caused by :: NoSuchKey: Missing expected field "shardHasDistributedLock"

      What could be causing this and how to get past this issue?

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            Unassigned Unassigned
            sanjay.gianchandani@mongodb.com Sanjay Gianchandani
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