Hot Region Diagnosis -------------------- Key: HBASE-4038 URL: https://issues.apache.org/jira/browse/HBASE-4038 Project: HBase Issue Type: Improvement Components: client, regionserver Affects Versions: 0.92.0 Reporter: Nicolas Spiegelberg Assignee: Nicolas Spiegelberg Priority: Minor
We should provide a basic way for end users to operationally diagnose hot row problems. Thinking about a 2-phase approach: 1. Diagnose hot regions 2. Inspect those regions/servers to find the hot rows. To diagnose hot regions, we could query the master or regionservers for these regions + sort. To inspect the regions for hot rows, we could write another script to analyze the HLogs on a server and basically do: sort log|uniq -n|sort -n|top -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira