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https://issues.apache.org/jira/browse/APEXMALHAR-2566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16799364#comment-16799364
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Pramod Immaneni commented on APEXMALHAR-2566:
---------------------------------------------
java.lang.NullPointerException
at
com.google.common.base.Preconditions.checkNotNull(Preconditions.java:213)
at
org.apache.apex.malhar.lib.wal.FSWindowDataManager.retrieve(FSWindowDataManager.java:487)
at
org.apache.apex.malhar.lib.wal.FSWindowDataManager.retrieve(FSWindowDataManager.java:448)
at
com.example.myapexapp.HTTPSPostOperator.beginWindow(HTTPSPostOperator.java:183)
at
com.datatorrent.stram.engine.GenericNode.run(GenericNode.java:306)
at
com.datatorrent.stram.engine.StreamingContainer$2.run(StreamingContainer.java:1407)
> NPE in FSWindowDataManager
> --------------------------
>
> Key: APEXMALHAR-2566
> URL: https://issues.apache.org/jira/browse/APEXMALHAR-2566
> Project: Apache Apex Malhar
> Issue Type: Bug
> Reporter: Pramod Immaneni
> Priority: Major
>
> Running into a null pointer exception during recovery in FSWindowDataManager
> implementation which in turn is causing operator to be stuck in a recovery
> loop.
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