Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/13482#discussion_r67429393
--- Diff:
yarn/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala ---
@@ -462,10 +464,23 @@ private[spark] class ApplicationMaster(
nextAllocationInterval = initialAllocationInterval
heartbeatInterval
}
- logDebug(s"Number of pending allocations is
$numPendingAllocate. " +
- s"Sleeping for $sleepInterval.")
+ sleepStart = System.currentTimeMillis()
allocatorLock.wait(sleepInterval)
}
+ val sleepDuration = System.currentTimeMillis() - sleepStart
+ if (sleepDuration < sleepInterval - 5) {
+ // log when sleep is interrupted
+ logInfo(s"Number of pending allocations is
$numPendingAllocate. " +
--- End diff --
most users don't care about how long the internal yarn allocator loop slept
for. If these logs are valuable then I would just set the `ApplicationMaster`
log level to DEBUG.
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