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  1. Core Server
  2. SERVER-13340

parallel creation of hashed shard key for multiple collections may not distribute them evenly

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Duplicate
    • 2.4.9, 2.6.0-rc2
    • None
    • Sharding
    • None
    • ALL

    Description

      This is captured by SERVER-9258 and SERVER-9260 where parallel unit tests were causing hashed key sharded collection not to be distributed evenly.

      The problem is that it's a real life scenario so our test should include trying to do it in parallel and we should fix the distribution of initial chunks - when a migration of empty chunk errors, it should possibly try again several times rather than just continuing on as that leaves all initial chunks on the original shard.

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              Unassigned Unassigned
              asya.kamsky@mongodb.com Asya Kamsky
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                Updated:
                Resolved: