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Posted to dev@nutch.apache.org by "Jurian Broertjes (JIRA)" <ji...@apache.org> on 2018/06/13 10:58:00 UTC

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

Jurian Broertjes created NUTCH-2597:
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             Summary: 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


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:

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)

Is this related to NUTCH-2375?

If further testing is needed, please let me know!



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