rickyma commented on code in PR #1537:
URL:
https://github.com/apache/incubator-uniffle/pull/1537#discussion_r1500629483
##########
server/src/main/java/org/apache/uniffle/server/DefaultFlushEventHandler.java:
##########
@@ -126,6 +126,11 @@ private void
handleEventAndUpdateMetrics(ShuffleDataFlushEvent event, Storage st
if (e instanceof EventInvalidException) {
return;
Review Comment:
This is because once the `ShuffleBuffer` associated with the `appId`
expires, its corresponding `bufferPool` will be cleared by a scheduled task.
Consequently, the `event` related to the `appId` will become invalid, and there
is no need to repeatedly release memory, as the scheduled task has already
taken care of releasing the buffer memory for all events associated with that
`appId`. You can check the code for more detailed reasons. @EnricoMi
As for why the code is designed this way, you can ask @zuston
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