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  1. Core Server
  2. SERVER-12363

Record type of queries (targeted=1 shard, and #-shards) on each mongos in ServerStatus

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    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Minor - P4
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Diagnostics, Sharding
    • Labels:

      Description

      When optimizing the performance of a sharded system, a lot of times you would want to make sure that most (ideally all) your queries are targeted, or how many shards are queried.

      An example section might look like this:

      { query: {
        { byShards: {"1": XX, "2":XX, "2":XX, .... }},
        { configDB: {reload:XX, partial:XX}},
      }}
       

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