Joey Echeverria created HBASE-7633:
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Summary: Add a metric that tracks the current number of used RPC
threads on the regionservers
Key: HBASE-7633
URL: https://issues.apache.org/jira/browse/HBASE-7633
Project: HBase
Issue Type: Improvement
Reporter: Joey Echeverria
One way to detect that you're hitting a "John Wayne" disk[1] would be if we
could see when region servers exhausted their RPC handlers. This would also be
useful when tuning the cluster for your workload to make sure that reads or
writes were not starving the other operations out.
[1] http://hbase.apache.org/book.html#bad.disk
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