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Sean Busbey updated HBASE-12217: -------------------------------- Fix Version/s: (was: 1.2.0) 1.3.0 I think we'd be interested in more than just load average if it was available. Over in HBASE-13103 [~lhofhansl] calls out several other metrics we'd want to know about when auto-tuning number of regions. > System load average based client pushback > ----------------------------------------- > > Key: HBASE-12217 > URL: https://issues.apache.org/jira/browse/HBASE-12217 > Project: HBase > Issue Type: New Feature > Reporter: Andrew Purtell > Assignee: Andrew Purtell > Fix For: 2.0.0, 1.3.0 > > > If a RegionServer host is already heavily loaded* then it might not be best > to accept more work in the form of coprocessor invocations. This could > generalize to all RPC work, perhaps as part of a broader admission control > initiative, but I think it makes sense to start small in an obvious place. > *: We could use % CPU utilization or the UNIX 1min or 5min load average to > determine this, and provide an option for choosing between those > alternatives. -- This message was sent by Atlassian JIRA (v6.3.4#6332)