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https://issues.apache.org/jira/browse/SAMZA-1754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jake Maes resolved SAMZA-1754.
------------------------------
Resolution: Fixed
PR closed
> Improve validation error messages in StreamSpec
> -----------------------------------------------
>
> Key: SAMZA-1754
> URL: https://issues.apache.org/jira/browse/SAMZA-1754
> Project: Samza
> Issue Type: Bug
> Reporter: Jagadish
> Priority: Major
>
> Often, there are validation failures due to a misconfigured StreamSpec.
> Here's one such example:
> {code}
> Caused by: java.lang.IllegalArgumentException: Identifier 'systemName' is
> 'null'. It must match the expression [A-Za-z0-9_-]+
> at
> org.apache.samza.system.StreamSpec.validateLogicalIdentifier(StreamSpec.java:245)
>
> at org.apache.samza.system.StreamSpec.<init>(StreamSpec.java:163)
> at org.apache.samza.system.StreamSpec.<init>(StreamSpec.java:140)
> at
> org.apache.samza.runtime.AbstractApplicationRunner.getStreamSpec(AbstractApplicationRunner.java:119)
>
> at
> org.apache.samza.runtime.AbstractApplicationRunner.getStreamSpec(AbstractApplicationRunner.java:100)
>
> at
> org.apache.samza.runtime.AbstractApplicationRunner.getStreamSpec(AbstractApplicationRunner.java:65)
>
> at
> org.apache.samza.operators.StreamGraphImpl.getInputStream(StreamGraphImpl.java:91)
>
> at
> org.apache.samza.operators.StreamGraphImpl.getInputStream(StreamGraphImpl.java:117)
>
> at
> com.linkedin.actioncommon.ams.samza.AccountManagementStreamApplication.init(AccountManagementStreamApplication.java:31)
>
> at
> org.apache.samza.runtime.AbstractApplicationRunner.getExecutionPlan(AbstractApplicationRunner.java:131)
>
> at
> org.apache.samza.runtime.AbstractApplicationRunner.getExecutionPlan(AbstractApplicationRunner.java:124)
>
> at
> org.apache.samza.runtime.LocalApplicationRunner.run(LocalApplicationRunner.java:152)
>
> {code}
> The error message should have adequate context:
> 1. What was the topicName, streamId, numPartitions, physicalName,
> numPartitions in the StreamSpec being validated?
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