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https://issues.apache.org/jira/browse/BEAM-1948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15967781#comment-15967781
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Etienne Chauchot commented on BEAM-1948:
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[~tgroh] I propose to do a quick fix PR just to avoid the null pointer
exception in case the {code} aggregator {code} key is not present in the {code}
aggregatorSteps {code} map. In the meantime we could figure out why this
aggregator key is not in the map.
WDYT?
> Null pointer exception in
> DirectRunner.DirectPipelineResult.getAggregatorValues()
> ---------------------------------------------------------------------------------
>
> Key: BEAM-1948
> URL: https://issues.apache.org/jira/browse/BEAM-1948
> Project: Beam
> Issue Type: Bug
> Components: runner-direct
> Reporter: Etienne Chauchot
> Assignee: Thomas Groh
> Priority: Minor
>
> Running query3 of nexmark
> (https://github.com/iemejia/beam/blob/BEAM-160-nexmark/integration/java/nexmark/src/main/java/org/apache/beam/integration/nexmark/queries/Query3Model.java)
> in streaming mode (UnboundedSource) on Direct runner generates a null
> pointer exception in {code}
> DirectRunner.DirectPipelineResult.getAggregatorValues() {code}
> In
> {code} if (steps.contains(transform.getTransform())) {code}
> {code} steps == null {code}
> to reproduce it :
> run {code} NexmarkDirectDriver.main() {code}
> with options
> {code}
> --query=3 --streaming=true --numEventGenerators=4 --manageResources=false
> --monitorJobs=true --enforceEncodability=false --enforceImmutability=false
> {code}
> see the repo in link above
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