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https://issues.apache.org/jira/browse/KAFKA-5469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16073696#comment-16073696
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ASF GitHub Bot commented on KAFKA-5469:
---------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/kafka/pull/3368
> Created state changelog topics not logged correctly
> ---------------------------------------------------
>
> Key: KAFKA-5469
> URL: https://issues.apache.org/jira/browse/KAFKA-5469
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Reporter: Paolo Patierno
> Assignee: Paolo Patierno
> Fix For: 0.11.1.0
>
>
> In the StreamPartitionAssignor class, the created state changelog topics
> aren't not logged correctly if the DEBUG log level is set.
> {code}
> [2017-06-19 12:18:44,186] DEBUG stream-thread
> [streams-temperature-6d25c7ff-0927-4469-8ab3-24444685e7d8-StreamThread-1]
> Created state changelog topics
> {streams-temperature-KSTREAM-REDUCE-STATE-STORE-0000000002-changelog=org.apache.kafka.streams.processor.internals.StreamPartitionAssignor$InternalTopicMetadata@65ae7693}
> from the parsed topology.
> (org.apache.kafka.streams.processor.internals.StreamPartitionAssignor:477)
> {code}
> against repartition topics which are well logged :
> {code}
> [2017-06-19 12:18:37,871] DEBUG stream-thread
> [streams-temperature-6d25c7ff-0927-4469-8ab3-24444685e7d8-StreamThread-1]
> Created repartition topics [Partition(topic =
> streams-temperature-KSTREAM-REDUCE-STATE-STORE-0000000002-repartition,
> partition = 0, leader = none, replicas = [], isr = [])] from the parsed
> topology.
> (org.apache.kafka.streams.processor.internals.StreamPartitionAssignor:402)
> {code}
> At same time if source topics are not created before launching the stream
> application, the state changelog topics log shows just {} (the placeholder)
> while for repartition topics the [] that is right because it's an empty list.
> It seems that there are two problems. For state changelog topics the values()
> is not used but then InternalTopicMetadata hasn't a toString() for having a
> well formatted output.
> I'm already working on that ..
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