Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/2805#discussion_r87900573
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/StreamTask.java
---
@@ -586,7 +588,18 @@ private boolean performCheckpoint(CheckpointMetaData
checkpointMetaData) throws
// yet be created
final CancelCheckpointMarker message = new
CancelCheckpointMarker(checkpointMetaData.getCheckpointId());
for (ResultPartitionWriter output :
getEnvironment().getAllWriters()) {
- output.writeEventToAllChannels(message);
+ final Buffer eventBuffer =
EventSerializer.toBuffer(message);
--- End diff --
Why not add a method to the ResultPartitionWriter that encapsulates this
behavior? The IterationHeadTask now contains an exact copy of this code.
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