shahidki31 commented on a change in pull request #24398:
[SPARK-27468][Core][WEBUI] BlockUpdate replication event shouldn't overwrite
storage level description in the UI
URL: https://github.com/apache/spark/pull/24398#discussion_r281041842
##########
File path: core/src/main/scala/org/apache/spark/status/AppStatusListener.scala
##########
@@ -917,8 +917,24 @@ private[spark] class AppStatusListener(
// Update the block entry in the RDD info, keeping track of the deltas
above so that we
// can update the executor information too.
liveRDDs.get(block.rddId).foreach { rdd =>
+
if (updatedStorageLevel.isDefined) {
- rdd.setStorageLevel(updatedStorageLevel.get)
+ // Replicated block update events will have
`storageLevel.replication=1`.
+ // To avoid overwriting the block replicated event in the store, we
need to
+ // have a check for whether the event is block replication or not.
+ // Default value of `storageInfo.replication = 1` and hence if
+ // `storeLevel.replication = 2`, the replicated events won't overwrite
in the store.
+ val storageInfo = rdd.storageInfo
+ val isReplicatedBlockUpdateEvent = storageLevel.replication <
storageInfo.replication &&
Review comment:
Hi, This line checks the storageLevel is valid or not.
https://github.com/apache/spark/blob/d9bcacf94b93fe76542b5c1fd852559075ef6faa/core/src/main/scala/org/apache/spark/status/AppStatusListener.scala#L916-L920
If not valid, then the `updatedStorageLevel` will be `None`. So, it won't
come to this line (L-928).
Thanks
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