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Posted to jira@kafka.apache.org by "Robert Yokota (JIRA)" <ji...@apache.org> on 2018/05/10 21:06:00 UTC

[jira] [Updated] (KAFKA-6894) Improve error message when connecting processor with a global store

     [ https://issues.apache.org/jira/browse/KAFKA-6894?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Yokota updated KAFKA-6894:
---------------------------------
    Description: 
I was trying to access a store from a {{GlobalKTable}} in {{KStream.transform()}}, but I got the following error:

{code}
org.apache.kafka.streams.errors.TopologyException: Invalid topology: StateStore globalStore is not added yet.
	at org.apache.kafka.streams.processor.internals.InternalTopologyBuilder.connectProcessorAndStateStore(InternalTopologyBuilder.java:716)
	at org.apache.kafka.streams.processor.internals.InternalTopologyBuilder.connectProcessorAndStateStores(InternalTopologyBuilder.java:615)
	at org.apache.kafka.streams.kstream.internals.KStreamImpl.transform(KStreamImpl.java:521)
{code}

I have submitted a PR to improve the error message.

  was:
I was trying to access a store from a {{GlobalKTable}} in {{KStream.transform()}}, but I got the following error:

{code}
org.apache.kafka.streams.errors.TopologyException: Invalid topology: StateStore globalStore is not added yet.
	at org.apache.kafka.streams.processor.internals.InternalTopologyBuilder.connectProcessorAndStateStore(InternalTopologyBuilder.java:716)
	at org.apache.kafka.streams.processor.internals.InternalTopologyBuilder.connectProcessorAndStateStores(InternalTopologyBuilder.java:615)
	at org.apache.kafka.streams.kstream.internals.KStreamImpl.transform(KStreamImpl.java:521)
{code}

I was able to make a change to {{InternalTopologyBuilder.connectProcessorAndState}} to allow me to access the global store from {{KStream.transform()}}.  I will submit a PR for review.

        Summary: Improve error message when connecting processor with a global store  (was: Cannot access GlobalKTable store from KStream.transform())

> Improve error message when connecting processor with a global store
> -------------------------------------------------------------------
>
>                 Key: KAFKA-6894
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6894
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 1.1.0
>            Reporter: Robert Yokota
>            Assignee: Robert Yokota
>            Priority: Minor
>
> I was trying to access a store from a {{GlobalKTable}} in {{KStream.transform()}}, but I got the following error:
> {code}
> org.apache.kafka.streams.errors.TopologyException: Invalid topology: StateStore globalStore is not added yet.
> 	at org.apache.kafka.streams.processor.internals.InternalTopologyBuilder.connectProcessorAndStateStore(InternalTopologyBuilder.java:716)
> 	at org.apache.kafka.streams.processor.internals.InternalTopologyBuilder.connectProcessorAndStateStores(InternalTopologyBuilder.java:615)
> 	at org.apache.kafka.streams.kstream.internals.KStreamImpl.transform(KStreamImpl.java:521)
> {code}
> I have submitted a PR to improve the error message.



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