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https://reviews.apache.org/r/29835/
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Review request for drill, Aditya Kishore, Jacques Nadeau, and Steven Phillips.


Bugs: DRILL-1926
    https://issues.apache.org/jira/browse/DRILL-1926


Repository: drill-git


Description
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Fix Back Pressure logic where it was kicking in only when number of elements in 
the queue was == to softLimit.
Also change to release back presure gradually and not in a single shot


Diffs
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exec/java-exec/src/main/java/org/apache/drill/exec/work/batch/ResponseSenderQueue.java
 5a9316ebac83e39c6a66b3d4835bb2cea303908b 
  
exec/java-exec/src/main/java/org/apache/drill/exec/work/batch/UnlimitedRawBatchBuffer.java
 623a719d8ff54554f7e77bcda7b50de66b48c766 
  
exec/java-exec/src/test/java/org/apache/drill/exec/work/batch/TestUnlimitedBatchBuffer.java
 PRE-CREATION 

Diff: https://reviews.apache.org/r/29835/diff/


Testing
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all suites


Thanks,

Yuliya Feldman

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