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Type: New Feature
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Resolution: Duplicate
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Priority: Major - P3
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None
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Affects Version/s: None
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Component/s: Diagnostics, Sharding
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Query
While monitoring a sharded cluster it would be helpful to know how seriously we are being affected by scatter-gather queries - how many operations are being targeted to multiple shards, how many require sorting and merging results on a shardsvr, and so forth.
While some of this data can be gathered by analyzing queries as they go in, it would be nice to be able to monitor a simple counter or two on grafana, CloudWatch, or Ops Manager to tell if some new code release or some other event has triggered a spate of scatter-gather queries that are negatively affecting performance.
- duplicates
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SERVER-43617 Add metrics on the mongos to indicate the number of shards targeted for the commands (find, aggregate, etc)
- Closed