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  1. Core Server
  2. SERVER-71229

Make shardsvr mongods also act as a sampler for query sampling

    • Type: Icon: Task Task
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 6.2.0-rc0
    • Affects Version/s: None
    • Component/s: None
    • None
    • Fully Compatible
    • Sharding NYC 2022-11-14

      $lookup, $graphLookup and $unionWith stages take in a "pipeline" that can be executed against any collection. Such nested aggregate queries do not go through mongoses since they are routed by the shardsvr mongods themselves. To support sampling such queries, we need to allow shardsvr mongods to act as a sampler (i.e. QueryAnalysisSampler).

            Assignee:
            cheahuychou.mao@mongodb.com Cheahuychou Mao
            Reporter:
            cheahuychou.mao@mongodb.com Cheahuychou Mao
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              Updated:
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