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  1. Core Server
  2. SERVER-34633

Allow $currentOp to retrieve operations from all members of each shard in a cluster

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      With the introduction of the $currentOp aggregation stage, users have the ability to obtain a list of operations running on Secondaries in a sharded cluster by setting the appropriate readPreference. However, this will only provide the operations from a single eligible Secondary in each shard, and the standard approach to more fine-grained targeting - using replica set tags - is both onerous and does not satisfactorily address this shortcoming.

      Add a new flag to $currentOp which, if set, stipulates that it should target every data-bearing member in each shard and return an exhaustive list of all operations running anywhere in the cluster.

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              Assignee:
              backlog-query-execution Backlog - Query Execution
              Reporter:
              bernard.gorman Bernard Gorman
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