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Chris Lohfink commented on CASSANDRA-7974: ------------------------------------------ gotcha, I can make a new patch with generic java collections. is the getKeyValidator Ok or should I move that processing into operation? > Enable tooling to detect hot partitions > --------------------------------------- > > Key: CASSANDRA-7974 > URL: https://issues.apache.org/jira/browse/CASSANDRA-7974 > Project: Cassandra > Issue Type: Improvement > Reporter: Brandon Williams > Assignee: Chris Lohfink > Fix For: 2.1.3 > > Attachments: 7974.txt, cassandra-2.1-7974v2.txt > > > Sometimes you know you have a hot partition by the load on a replica set, but > have no way of determining which partition it is. Tracing is inadequate for > this without a lot of post-tracing analysis that might not yield results. > Since we already include stream-lib for HLL in compaction metadata, it > shouldn't be too hard to wire up topK for X seconds via jmx/nodetool and then > return the top partitions hit. -- This message was sent by Atlassian JIRA (v6.3.4#6332)