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https://issues.apache.org/jira/browse/KAFKA-7634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16692099#comment-16692099
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Eugen Feller commented on KAFKA-7634:
-------------------------------------
Sure. Punctuate call looks like this:.
{code:java}
override def punctuate(timestamp: Long): KeyValue[Key, Value3] = {
val iterator: KeyValueIterator[Key, Value3] = myStore.all()
while (iterator.hasNext) {
val kv = iterator.next()
val key = kv.key
val value = kv.value
// Some small time based updates for the value....
ctx.forward(key, value))
myStore.delete(key)
}
ctx.commit()
iterator.close()
return null
}
{code}
> Punctuate not being called with merge() and/or outerJoin()
> ----------------------------------------------------------
>
> Key: KAFKA-7634
> URL: https://issues.apache.org/jira/browse/KAFKA-7634
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 0.11.0.3
> Reporter: Eugen Feller
> Priority: Major
>
> Hi all,
> I am using the Processor API and having trouble to get Kafka streams
> v0.11.0.3 call the punctuate() function after a merge() and/or outerJoin().
> Specifically, I am having a topology where I am doing flatMapValues() ->
> merge() and/or outerJoin -> transform(). If I dont call merge() and/or
> outerJoin() before transform(), punctuate is being called as expected.
> Thank you very much in advance for your help.
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