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Posted to issues@flink.apache.org by "jiexray (via GitHub)" <gi...@apache.org> on 2025/09/23 02:18:58 UTC

[PR] [FLINK-38364][runtime] Implement async state version of ProcessingTimeoutTrigger [flink]

jiexray opened a new pull request, #27027:
URL: https://github.com/apache/flink/pull/27027

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## Implement `AsyncProcessingTimeoutTrigger`, the async state version of `ProcessingTimeoutTrigger`

Before this pr, `ProcessingTimeoutTrigger` only supports sync state mode. After this pr, user can use `AsyncProcessingTimeoutTrigger`, and enable async state mode.

## Brief change log

- Add `AsyncProcessingTimeoutTrigger`, support `ProcessingTimeoutTrigger` in async mode.

## Verifying this change

- Parameterize `ProcessingTimeoutTriggerTest` to test both sync and async state mode.

## Does this pull request potentially affect one of the following parts:

- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with `@Public(Evolving)`: no
- The serializers: no
- The runtime per-record code paths (performance sensitive): no
- Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
- The S3 file system connector: no

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Re: [PR] [FLINK-38364][streaming-java] Implement async state version of ProcessingTimeoutTrigger [flink]

Posted by "Zakelly (via GitHub)" <gi...@apache.org>.

Zakelly merged PR #27027:
URL: https://github.com/apache/flink/pull/27027


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Re: [PR] [FLINK-38364][runtime] Implement async state version of ProcessingTimeoutTrigger [flink]

Posted by "Zakelly (via GitHub)" <gi...@apache.org>.

Zakelly commented on code in PR #27027:
URL: https://github.com/apache/flink/pull/27027#discussion_r2380833432


##########
flink-runtime/src/main/java/org/apache/flink/streaming/runtime/operators/windowing/AsyncTriggerConvertable.java:
##########
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.streaming.runtime.operators.windowing;
+
+import org.apache.flink.annotation.Internal;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Interface for declaring the ability to convert a sync {@code Trigger} to {@code AsyncTrigger}.
+ * The trigger conversion happens in {@code AsyncTriggerConverter}.
+ */
+@Internal
+public interface AsyncTriggerConvertable {

Review Comment:
   Ah... why we introduce this interface since we already have `AsyncTriggerConverter`?



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