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Tianying Chang commented on HBASE-7818: --------------------------------------- Running -Dtest=TestShell or -Dtest=org.apache.hadoop.hbase.client.TestShell did not work for me, it exit with "No tests were executed". I have increased the memory and ulimit on my VM, see if I can get a full test complete. > add region level metrics readReqeustCount and writeRequestCount > ---------------------------------------------------------------- > > Key: HBASE-7818 > URL: https://issues.apache.org/jira/browse/HBASE-7818 > Project: HBase > Issue Type: Improvement > Components: metrics > Affects Versions: 0.94.4 > Reporter: Tianying Chang > Assignee: Tianying Chang > Priority: Minor > Fix For: 0.94.7 > > Attachments: HBASE-7818_1.patch, HBASE-7818_2.patch, HBASE-7818.patch > > > Request rate at region server level can help identify the hot region server. > But it will be good if we can further identify the hot regions on that region > server. That way, we can easily find out unbalanced regions problem. > Currently, readRequestCount and writeReqeustCount per region is exposed at > webUI. It will be more useful to expose it through hadoop metrics framework > and/or JMX, so that people can see the history when the region is hot. > I am exposing the existing readRequestCount/writeRequestCount into the > dynamic region level metrics framework. I am not changing/exposing it as rate > because our openTSDB is taking the raw data of read/write count, and apply > rate function to display the rate already. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira