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https://issues.apache.org/jira/browse/SPARK-17193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-17193:
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Assignee: Apache Spark (was: Sean Owen)
> HadoopRDD NPE at DEBUG log level when getLocationInfo == null
> -------------------------------------------------------------
>
> Key: SPARK-17193
> URL: https://issues.apache.org/jira/browse/SPARK-17193
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.0.0
> Reporter: Sean Owen
> Assignee: Apache Spark
> Priority: Trivial
>
> When I set the log level to "DEBUG" in one of my apps that reads from
> Parquet, I notice several NullPointerExceptions logged from
> HadoopRDD.getPreferredLocations.
> It doesn't affect executions as it just results in "no preferred locations".
> It happens when InputSplitWithLocationInfo.getLocationInfo produces null,
> which it may. The code just dereferences it however.
> It's cleaner to check this directly (and maybe tighten up the code slightly)
> and avoid polluting the log, though, it's just at debug level. No big deal,
> but enough of an annoyance when I was debugging something that it's probably
> worth zapping.
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