pnowojski commented on a change in pull request #13465:
URL: https://github.com/apache/flink/pull/13465#discussion_r494374412
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/MultipleInputStreamTask.java
##########
@@ -18,32 +18,51 @@
package org.apache.flink.streaming.runtime.tasks;
import org.apache.flink.annotation.Internal;
+import org.apache.flink.runtime.checkpoint.CheckpointMetaData;
+import org.apache.flink.runtime.checkpoint.CheckpointMetrics;
+import org.apache.flink.runtime.checkpoint.CheckpointOptions;
+import org.apache.flink.runtime.checkpoint.channel.InputChannelInfo;
import org.apache.flink.runtime.execution.Environment;
+import org.apache.flink.runtime.io.network.api.CheckpointBarrier;
import org.apache.flink.runtime.io.network.partition.consumer.IndexedInputGate;
import org.apache.flink.runtime.metrics.MetricNames;
import org.apache.flink.streaming.api.graph.StreamConfig;
import org.apache.flink.streaming.api.graph.StreamConfig.InputConfig;
import org.apache.flink.streaming.api.graph.StreamEdge;
import org.apache.flink.streaming.api.operators.InputSelectable;
import org.apache.flink.streaming.api.operators.MultipleInputStreamOperator;
+import org.apache.flink.streaming.runtime.io.CheckpointBarrierHandler;
import org.apache.flink.streaming.runtime.io.CheckpointedInputGate;
import org.apache.flink.streaming.runtime.io.InputProcessorUtil;
import org.apache.flink.streaming.runtime.io.MultipleInputSelectionHandler;
import org.apache.flink.streaming.runtime.io.StreamMultipleInputProcessor;
+import org.apache.flink.streaming.runtime.io.StreamTaskSourceInput;
import org.apache.flink.streaming.runtime.metrics.MinWatermarkGauge;
import org.apache.flink.streaming.runtime.metrics.WatermarkGauge;
+import javax.annotation.Nullable;
+
+import java.io.IOException;
import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
import java.util.List;
-
-import static org.apache.flink.util.Preconditions.checkState;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.Future;
/**
* A {@link StreamTask} for executing a {@link MultipleInputStreamOperator}
and supporting
* the {@link MultipleInputStreamOperator} to select input for reading.
*/
@Internal
public class MultipleInputStreamTask<OUT> extends StreamTask<OUT,
MultipleInputStreamOperator<OUT>> {
+ public static final int MAX_TRACKED_CHECKPOINTS = 100_000;
Review comment:
It can
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