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  1. Cassandra
  2. CASSANDRA-7402

Add metrics to track memory used by client requests

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      Description

      When running a production cluster one common operational issue is quantifying GC pauses caused by ongoing requests.

      Since different queries return varying amount of data you can easily get your self into a situation where you Stop the world from a couple of bad actors in the system. Or more likely the aggregate garbage generated on a single node across all in flight requests causes a GC.

      It would be very useful for operators to see how much garbage the system is using to handle in flight mutations and queries.

      It would also be nice to have either a log of queries which generate the most garbage so operators can track this. Also a histogram.

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        1. 7402.txt
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          T Jake Luciani

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              • Assignee:
                tjake T Jake Luciani
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                tjake T Jake Luciani
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                T Jake Luciani
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