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From "Mikhail Antonov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-17032) CallQueueTooBigException and CallDroppedException should not be triggering PFFE
Date Sat, 05 Nov 2016 00:17:58 GMT
Mikhail Antonov created HBASE-17032:
---------------------------------------

             Summary: CallQueueTooBigException and CallDroppedException should not be triggering
PFFE
                 Key: HBASE-17032
                 URL: https://issues.apache.org/jira/browse/HBASE-17032
             Project: HBase
          Issue Type: Bug
            Reporter: Mikhail Antonov


Back in HBASE-15137 we made it so that CQTBE causes preemptive fast fail exception on the
client. 

It seems those 2 load control mechanists don't exactly align here. Server throws CallQueueTooBigException,
CallDroppedException (from deadline scheduler) when it feels overloaded. Client should accept
that behavior and retry. When servers sheds the load, and client also bails out, the load
shedding  bubbles up too high and high level impact on the client applications seems worse
with PFFE turned on then without.



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