1u0 commented on a change in pull request #8692: [FLINK-12804] Introduce
mailbox-based ExecutorService
URL: https://github.com/apache/flink/pull/8692#discussion_r296616785
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/StreamTask.java
##########
@@ -1329,33 +1364,66 @@ public void
tryHandleCheckpointException(CheckpointMetaData checkpointMetaData,
*/
public final class ActionContext {
- private final Runnable actionUnavailableLetter =
ThrowingRunnable.unchecked(mailbox::waitUntilHasMail);
+ private final Runnable actionUnavailableLetter;
+ private final TaskMailboxExecutorServiceImpl
mailboxExecutorService;
+
+ public ActionContext(TaskMailboxExecutorServiceImpl
mailboxExecutorService) {
+ final Mailbox mailbox =
taskMailboxExecutor.getMailbox();
+ this.actionUnavailableLetter =
ThrowingRunnable.unchecked(() -> mailbox.takeMail().run());
+ this.mailboxExecutorService = mailboxExecutorService;
Review comment:
Nitpick: you are mixing two fields in the `ActionContext` implementation
`TaskMailboxExecutorServiceImpl
mailboxExecutorService // this` and `TaskMailboxExecutorServiceImpl
taskMailboxExecutor // enclosing StreamTask`.
Although, I'd expect that they both reference the same object.
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