[
https://issues.apache.org/jira/browse/KAFKA-7316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16586909#comment-16586909
]
Ted Yu edited comment on KAFKA-7316 at 8/22/18 12:20 AM:
---------------------------------------------------------
Patch v4 makes the code compile.
Just leaving it here showing one potential approach where there is no chance of
Scala API having stack overflow error.
was (Author: [email protected]):
Patch v4 makes the code compile.
> Use of filter method in KTable.scala may result in StackOverflowError
> ---------------------------------------------------------------------
>
> Key: KAFKA-7316
> URL: https://issues.apache.org/jira/browse/KAFKA-7316
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 2.0.0
> Reporter: Ted Yu
> Priority: Major
> Labels: scala
> Attachments: 7316.v4.txt
>
>
> In this thread:
> http://search-hadoop.com/m/Kafka/uyzND1dNbYKXzC4F1?subj=Issue+in+Kafka+2+0+0+
> Druhin reported seeing StackOverflowError when using filter method from
> KTable.scala
> This can be reproduced with the following change:
> {code}
> diff --git
> a/streams/streams-scala/src/test/scala/org/apache/kafka/streams/scala/StreamToTableJoinScalaIntegrationTestImplicitSerdes.scala
> b/streams/streams-scala/src/test/scala
> index 3d1bab5..e0a06f2 100644
> ---
> a/streams/streams-scala/src/test/scala/org/apache/kafka/streams/scala/StreamToTableJoinScalaIntegrationTestImplicitSerdes.scala
> +++
> b/streams/streams-scala/src/test/scala/org/apache/kafka/streams/scala/StreamToTableJoinScalaIntegrationTestImplicitSerdes.scala
> @@ -58,6 +58,7 @@ class StreamToTableJoinScalaIntegrationTestImplicitSerdes
> extends StreamToTableJ
> val userClicksStream: KStream[String, Long] =
> builder.stream(userClicksTopic)
> val userRegionsTable: KTable[String, String] =
> builder.table(userRegionsTopic)
> + userRegionsTable.filter { case (_, count) => true }
> // Compute the total per region by summing the individual click counts
> per region.
> val clicksPerRegion: KTable[String, Long] =
> {code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
