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[FLINK-37206][Runtime] Fix initialization of batching timer service i…
…n async state operators
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85 changes: 85 additions & 0 deletions
85
...streaming/api/operators/sorted/state/BatchExecutionInternalTimeServiceWithAsyncState.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.flink.streaming.api.operators.sorted.state; | ||
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| import org.apache.flink.runtime.asyncprocessing.AsyncExecutionController; | ||
| import org.apache.flink.runtime.asyncprocessing.RecordContext; | ||
| import org.apache.flink.streaming.api.operators.InternalTimer; | ||
| import org.apache.flink.streaming.api.operators.InternalTimerService; | ||
| import org.apache.flink.streaming.api.operators.Triggerable; | ||
| import org.apache.flink.streaming.runtime.tasks.ProcessingTimeService; | ||
| import org.apache.flink.util.function.ThrowingRunnable; | ||
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|
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| /** | ||
| * An implementation of a {@link InternalTimerService} that manages timers with a single active key | ||
| * at a time. Can be used in a BATCH execution mode cooperating with async state operators. | ||
| */ | ||
| public class BatchExecutionInternalTimeServiceWithAsyncState<K, N> | ||
| extends BatchExecutionInternalTimeService<K, N> { | ||
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| private AsyncExecutionController<K> asyncExecutionController; | ||
|
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| BatchExecutionInternalTimeServiceWithAsyncState( | ||
| ProcessingTimeService processingTimeService, Triggerable<K, N> triggerTarget) { | ||
| super(processingTimeService, triggerTarget); | ||
| } | ||
|
|
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| /** Set up the async execution controller. */ | ||
| public void setup(AsyncExecutionController<K> asyncExecutionController) { | ||
| if (asyncExecutionController != null) { | ||
| this.asyncExecutionController = asyncExecutionController; | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Sets the current key. Timers that are due to be fired are collected and will be triggered. | ||
| */ | ||
| @Override | ||
| public void setCurrentKey(K currentKey) throws Exception { | ||
| if (currentKey != null && currentKey.equals(this.currentKey)) { | ||
| return; | ||
| } | ||
| currentWatermark = Long.MAX_VALUE; | ||
| InternalTimer<K, N> timer; | ||
| while ((timer = eventTimeTimersQueue.poll()) != null) { | ||
| final InternalTimer<K, N> timerToTrigger = timer; | ||
| maintainContextAndProcess( | ||
| timerToTrigger, () -> triggerTarget.onEventTime(timerToTrigger)); | ||
| } | ||
| while ((timer = processingTimeTimersQueue.poll()) != null) { | ||
| final InternalTimer<K, N> timerToTrigger = timer; | ||
| maintainContextAndProcess( | ||
| timerToTrigger, () -> triggerTarget.onProcessingTime(timerToTrigger)); | ||
| } | ||
| currentWatermark = Long.MIN_VALUE; | ||
| this.currentKey = currentKey; | ||
| } | ||
|
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| private void maintainContextAndProcess( | ||
| InternalTimer<K, N> timer, ThrowingRunnable<Exception> runnable) { | ||
| // Since we are in middle of processing a record, we need to maintain the context. | ||
| final RecordContext<K> previousContext = asyncExecutionController.getCurrentContext(); | ||
| RecordContext<K> recordCtx = asyncExecutionController.buildContext(timer, timer.getKey()); | ||
| recordCtx.retain(); | ||
| asyncExecutionController.setCurrentContext(recordCtx); | ||
| asyncExecutionController.syncPointRequestWithCallback(runnable, true); | ||
| recordCtx.release(); | ||
| asyncExecutionController.setCurrentContext(previousContext); | ||
| } | ||
| } |
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