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[SPARK-7775] YARN AM negative sleep exception #6305

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andrewor14 wants to merge 2 commits into from
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[SPARK-7775] YARN AM negative sleep exception #6305

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56d6e5e
Avoid negative sleep
May 21, 2015
b970770
Use existing cap
May 21, 2015
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2 changes: 1 addition & 1 deletion yarn/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -345,7 +345,7 @@ private[spark] class ApplicationMaster(
if (numPendingAllocate > 0) {
val currentAllocationInterval =
math.min(heartbeatInterval, nextAllocationInterval)
nextAllocationInterval *= 2
nextAllocationInterval = currentAllocationInterval * 2 // avoid overflow
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@srowen srowen May 21, 2015

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This effectively caps the interval to the heartbeatInterval right? that seems OK, just checking.

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@andrewor14 andrewor14 May 21, 2015

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yes

currentAllocationInterval
} else {
nextAllocationInterval = initialAllocationInterval
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