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  1. Core Server
  2. SERVER-43397

Blacklist FSM workloads that perform multi-deletes from balancer and migration suites.

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 4.3.1
    • Component/s: Sharding
    • Backwards Compatibility:
      Fully Compatible
    • Operating System:
      ALL
    • Sprint:
      Sharding 2019-10-07
    • Linked BF Score:
      19

      Description

      Workloads that perform multi-deletes and then assert on the number of documents deleted will not work with balancer or migration suites. This is because multi-deletes aren't versioned, and thus do not filter for orphans. During and after migrations, there could exist an undefined number of orphans, due to either:

      1. Documents currently streaming to the current node in process of a migration that have not yet been "assigned" to the node via shard versioning, or
      2. Documents not yet deleted ("left over") on a node that has officially migrated documents to another node.

      The consistent solution is to blacklist these suites from the balancer and migration suites.

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                Updated:
                Resolved: