Github user chenghao-intel commented on a diff in the pull request:
https://github.com/apache/spark/pull/11101#discussion_r53118993
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/scheduler/JobGenerator.scala
---
@@ -123,6 +126,12 @@ class JobGenerator(jobScheduler: JobScheduler) extends
Logging {
timedOut
}
+ // generate one more bacth to make sure RDD in lastJob is
checkpointed.
+ if (!jobScheduler.receiverTracker.hasUnallocatedBlocks &&
+ ssc.graph.isCheckpointMissedLastTime) {
+ Thread.sleep(ssc.graph.batchDuration.milliseconds)
--- End diff --
What about if the last batch execution takes longer time than the
batchDuration? Probably we need a notification with a timeout?
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