pnowojski commented on a change in pull request #10177: [FLINK-14747] Fix
performance regression with latest changes to Mailbox
URL: https://github.com/apache/flink/pull/10177#discussion_r346190958
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/mailbox/TaskMailboxImpl.java
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@@ -107,9 +107,12 @@ public boolean hasMail() {
@Override
public Optional<Mail> tryTake(int priority) {
- Optional<Mail> head = tryTakeFromBatch();
- if (head.isPresent()) {
- return head;
+ Mail head = takeOrNull(batch, priority);
Review comment:
Missing test coverage?
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