pan3793 commented on code in PR #3487:
URL: https://github.com/apache/celeborn/pull/3487#discussion_r2368761221


##########
client/src/main/scala/org/apache/celeborn/client/commit/ReducePartitionCommitHandler.scala:
##########
@@ -75,6 +75,7 @@ class ReducePartitionCommitHandler(
   private val stageEndShuffleSet = ConcurrentHashMap.newKeySet[Int]()
   private val inProcessStageEndShuffleSet = ConcurrentHashMap.newKeySet[Int]()
   private val shuffleMapperAttempts = JavaUtils.newConcurrentHashMap[Int, 
Array[Int]]()
+  private val shuffleToCompletedMappers = JavaUtils.newConcurrentHashMap[Int, 
Int]()

Review Comment:
   millions of key-value pairs take dozens of MiB memory, not sure if worth 
using `fastutil`-like optimization, which is more memory-friendly for primitive 
types.



-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]

Reply via email to