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https://issues.apache.org/jira/browse/NUTCH-2719?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Roannel Fernández Hernández reassigned NUTCH-2719:
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Assignee: Roannel Fernández Hernández
> NPE if exchanges.xml uses index writer not available
> ----------------------------------------------------
>
> Key: NUTCH-2719
> URL: https://issues.apache.org/jira/browse/NUTCH-2719
> Project: Nutch
> Issue Type: Improvement
> Components: indexer
> Affects Versions: 1.15
> Reporter: Sebastian Nagel
> Assignee: Roannel Fernández Hernández
> Priority: Major
> Fix For: 1.16
>
>
> If the exchanges.xml uses an index writer not present (e.g., because the
> plugin is not in plugin.includes) the index job fails with a NPE:
> {noformat}
> java.lang.Exception: java.lang.NullPointerException
> at
> org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:462)
> at
> org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:529)
> Caused by: java.lang.NullPointerException
> at org.apache.nutch.indexer.IndexWriters.write(IndexWriters.java:222)
> at
> org.apache.nutch.indexer.IndexerOutputFormat$1.write(IndexerOutputFormat.java:62)
> at
> org.apache.nutch.indexer.IndexerOutputFormat$1.write(IndexerOutputFormat.java:47)
> at
> org.apache.hadoop.mapred.ReduceTask$NewTrackingRecordWriter.write(ReduceTask.java:558)
> {noformat}
> This should be caught gracefully with a message about an inconsistent
> configuration.
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