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https://issues.apache.org/jira/browse/NUTCH-1029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13062489#comment-13062489
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Markus Jelsma commented on NUTCH-1029:
--------------------------------------
It seems this error is caused due to the _SUCCESS file in crawldb. This file is
saved after a successful job completion because of MAPREDUCE-947. The crawldb
reader attempts to read the file, which it can't and thus throws the above
exception.
The reader job writes and then reads a temporary stat_tmp1234567 directory. The
following read seems to choke on the _SUCCESS file.
> Readdb throws EOFException
> --------------------------
>
> Key: NUTCH-1029
> URL: https://issues.apache.org/jira/browse/NUTCH-1029
> Project: Nutch
> Issue Type: Bug
> Components: linkdb
> Affects Versions: 1.4
> Environment: Hadoop 0.20.203.0
> Reporter: Markus Jelsma
> Assignee: Markus Jelsma
> Fix For: 1.4, 2.0
>
>
> Readdb -stats on a crawldb with 1 record exits with EOFError on
> Hadoop-0.20.203.0.
> {code}
> Exception in thread "main" java.io.EOFException
> at java.io.DataInputStream.readFully(DataInputStream.java:180)
> at java.io.DataInputStream.readFully(DataInputStream.java:152)
> at
> org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1450)
> at
> org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1428)
> at
> org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1417)
> at
> org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1412)
> at
> org.apache.hadoop.mapred.SequenceFileOutputFormat.getReaders(SequenceFileOutputFormat.java:93)
> at
> org.apache.nutch.crawl.CrawlDbReader.processStatJob(CrawlDbReader.java:320)
> at org.apache.nutch.crawl.CrawlDbReader.main(CrawlDbReader.java:502)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
> {code}
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