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  1. Core Server
  2. SERVER-13340

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

    • Type: Icon: Bug Bug
    • Resolution: Duplicate
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 2.4.9, 2.6.0-rc2
    • Component/s: Sharding
    • Labels:
      None
    • ALL

      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.

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

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