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  1. Core Server
  2. SERVER-30058

Balancer policy should not move chunks off shards on 'size exceeded' conditions

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • 3.4.6, 3.5.9
    • 3.4.7, 3.5.10
    • Sharding
    • None
    • Fully Compatible
    • ALL
    • v3.4
    • Sharding 2017-07-31

    Description

      The inclusion of the shard size exceeded check as a pre-condition for deciding whether to move chunks off a shard is a bug, which was introduced in 3.4 as part of this commit.

      Such a policy has the potential to cause chunks to move off a shard and then back to it on subsequent rounds and should be removed.

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              kaloian.manassiev@mongodb.com Kaloian Manassiev
              kaloian.manassiev@mongodb.com Kaloian Manassiev
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                Updated:
                Resolved: