pnowojski commented on a change in pull request #12186:
URL: https://github.com/apache/flink/pull/12186#discussion_r426157143
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/OperatorChain.java
##########
@@ -262,7 +262,9 @@ public void prepareSnapshotPreBarrier(long checkpointId)
throws Exception {
// go forward through the operator chain and tell each operator
// to prepare the checkpoint
for (StreamOperatorWrapper<?, ?> operatorWrapper :
getAllOperators()) {
-
operatorWrapper.getStreamOperator().prepareSnapshotPreBarrier(checkpointId);
+ if (!operatorWrapper.isClosed()) {
+
operatorWrapper.getStreamOperator().prepareSnapshotPreBarrier(checkpointId);
+ }
Review comment:
Maybe in the future?
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