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  1. Core Server
  2. SERVER-22516

mongos should apply client's read preference to all commands

    • Type: Icon: Improvement Improvement
    • Resolution: Unresolved
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: None
    • Component/s: Sharding
    • Cluster Scalability
    • Major Change

      If mongos is committed to matching the drivers Server Selection Spec, it needs to be updated to match behavior we decided on for drivers last year. See this section of the Server Selection Spec:

      https://github.com/mongodb/specifications/blob/master/source/server-selection/server-selection.rst#use-of-read-preferences-with-commands

      mongos should obey the "$readPreference" document sent with any command, regardless of the command name. The "whitelist" from the old Read Preferences spec is superseded by the new, simpler Server Selection Spec behavior.

            Assignee:
            backlog-server-cluster-scalability [DO NOT USE] Backlog - Cluster Scalability
            Reporter:
            jesse@mongodb.com A. Jesse Jiryu Davis
            Votes:
            1 Vote for this issue
            Watchers:
            9 Start watching this issue

              Created:
              Updated: