prateekm commented on a change in pull request #1260: SAMZA-2446: Invoke
onCheckpoint only for registered SSPs
URL: https://github.com/apache/samza/pull/1260#discussion_r371568715
##########
File path:
samza-core/src/main/scala/org/apache/samza/checkpoint/OffsetManager.scala
##########
@@ -353,13 +353,16 @@ class OffsetManager(
}
}
- // invoke checkpoint listeners
- checkpoint.getOffsets.asScala.groupBy { case (ssp, _) => ssp.getSystem
}.foreach {
- case (systemName:String, offsets: Map[SystemStreamPartition, String])
=> {
- // Option is empty if there is no checkpointListener for this
systemName
-
checkpointListeners.get(systemName).foreach(_.onCheckpoint(offsets.asJava))
+ // invoke checkpoint listeners only for SSPs that are registered with
the OffsetManager
Review comment:
Let's add a comment explaining when this will not be the case.
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