[jira] [Resolved] (NUTCH-2597) NPE in updatehostdb

["Sebastian Nagel (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NUTCH-2597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sebastian Nagel resolved NUTCH-2597.
------------------------------------
    Resolution: Fixed

Tested/verified solution and merged. Thanks, [~jurian]!

> NPE in updatehostdb
> -------------------
>
>                 Key: NUTCH-2597
>                 URL: https://issues.apache.org/jira/browse/NUTCH-2597
>             Project: Nutch
>          Issue Type: Bug
>          Components: hostdb
>    Affects Versions: 1.15
>            Reporter: Jurian Broertjes
>            Priority: Critical
>             Fix For: 1.15
>
>
> I get an NPE on updatehostdb. I start with a clean crawlDB & hostDB. After an inject, I do an updatehostdb with -checkAll and get the following stacktrace:
> {code}
> 2018-06-13 10:45:21,958 WARN hostdb.ResolverThread - java.lang.NullPointerException
>  at org.apache.hadoop.io.SequenceFile$Writer.checkAndWriteSync(SequenceFile.java:1359)
>  at org.apache.hadoop.io.SequenceFile$Writer.append(SequenceFile.java:1400)
>  at org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat$1.write(SequenceFileOutputFormat.java:83)
>  at org.apache.hadoop.mapred.ReduceTask$NewTrackingRecordWriter.write(ReduceTask.java:558)
>  at org.apache.hadoop.mapreduce.task.TaskInputOutputContextImpl.write(TaskInputOutputContextImpl.java:89)
>  at org.apache.hadoop.mapreduce.lib.reduce.WrappedReducer$Context.write(WrappedReducer.java:105)
>  at org.apache.nutch.hostdb.ResolverThread.run(ResolverThread.java:82)
>  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>  at java.lang.Thread.run(Thread.java:748)
> {code}
> Is this related to NUTCH-2375?
> If further testing is needed, please let me know!



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