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https://issues.apache.org/jira/browse/FLINK-8694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16376862#comment-16376862
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ASF GitHub Bot commented on FLINK-8694:
---------------------------------------
Github user NicoK commented on a diff in the pull request:
https://github.com/apache/flink/pull/5572#discussion_r170585362
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/iterative/task/IterationHeadTask.java
---
@@ -447,6 +447,8 @@ private void sendEndOfSuperstepToAllIterationOutputs()
throws IOException, Inter
for (RecordWriter<?> eventualOutput : this.eventualOutputs) {
eventualOutput.broadcastEvent(EndOfSuperstepEvent.INSTANCE);
+ eventualOutput.clearBuffers();
+ eventualOutput.flushAll();
--- End diff --
let's remove those two - they should be unnecessary
> Make notifyDataAvailable call reliable
> --------------------------------------
>
> Key: FLINK-8694
> URL: https://issues.apache.org/jira/browse/FLINK-8694
> Project: Flink
> Issue Type: Sub-task
> Reporter: Piotr Nowojski
> Assignee: Piotr Nowojski
> Priority: Blocker
>
> After FLINK-8591
> org.apache.flink.runtime.io.network.netty.SequenceNumberingViewReader#notifyDataAvailable
> (and the same for Credit base flow control) due to race condition can be
> sometimes ignored.
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