Matt Stump created CASSANDRA-8195: ------------------------------------- Summary: Tools for discovering problem/largest partitions Key: CASSANDRA-8195 URL: https://issues.apache.org/jira/browse/CASSANDRA-8195 Project: Cassandra Issue Type: Improvement Reporter: Matt Stump
A very common problem is that a customer will have one or two very hot partitions. This could be a result of an unforeseen usage pattern or a problem user. Tracking down the offending parition/row currently involves a linear scan of the data. We should keep stats on the largest N partitions encountered and make those visible via nodetool as we do with cfhistograms. A reasonable suggestion for N is 10, meaning the top 10 partition keys and their size would be visible. We should also probably keep this info as part of the sstable metadata. -- This message was sent by Atlassian JIRA (v6.3.4#6332)