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  1. Core Server
  2. SERVER-31959

Update HostTypeRequirements for $changeStream stages that run on mongoS

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    • Icon: Improvement Improvement
    • Resolution: Won't Fix
    • Icon: Minor - P4 Minor - P4
    • None
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    • Aggregation Framework
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    • Query
    • Fully Compatible

    Description

      Following SERVER-31763 and SERVER-30834, there are no longer any circumstances in which we forward a complete $changeStream pipeline from mongoS to a single shard. Since all $changeStream pipelines issued to a mongoS must now split and be merged locally, the HostTypeRequirement for all post-split stages should be changed to kLocalOnly.

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            backlog-server-query Backlog - Query Team (Inactive)
            bernard.gorman@mongodb.com Bernard Gorman
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