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Posted to common-dev@hadoop.apache.org by "Amar Kamat (JIRA)" <ji...@apache.org> on 2007/12/17 19:00:47 UTC
[jira] Issue Comment Edited: (HADOOP-2419) HADOOP-1965 breaks nutch
[ https://issues.apache.org/jira/browse/HADOOP-2419?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12552325 ]
amar_kamat edited comment on HADOOP-2419 at 12/17/07 9:59 AM:
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Plz check the new patch [https://issues.apache.org/jira/secure/attachment/12371797/HADOOP-2419.patch]. Earlier the calls to {{MapTask.Collect()}} were not thread-safe. Now the call to {{Collect()}} is made thread-safe. Let us know if this patch works fine.
was (Author: amar_kamat):
Plz check the new patch [https://issues.apache.org/jira/secure/attachment/12371775/HADOOP-2419.patch]. Earlier the calls to {{MapTask.Collect()}} were not thread-safe. Now the call to {{Collect()}} is made thread-safe. Let us know if this patch works fine.
> HADOOP-1965 breaks nutch
> ------------------------
>
> Key: HADOOP-2419
> URL: https://issues.apache.org/jira/browse/HADOOP-2419
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.16.0
> Reporter: Paul Saab
> Assignee: Amar Kamat
> Attachments: jobtasks.jsp.html, MapRunnableTest.java
>
>
> When running nutch on trunk, nutch is unable to complete a fetch and the following exceptions are raised:
> java.io.EOFException
> at java.io.DataInputStream.readFully(DataInputStream.java:180)
> at org.apache.nutch.protocol.Content.readFields(Content.java:158)
> at org.apache.nutch.util.GenericWritableConfigurable.readFields(GenericWritableConfigurable.java:38)
> at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.spill(MapTask.java:536)
> at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.sortAndSpillToDisk(MapTask.java:474)
> at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.access$100(MapTask.java:248)
> at org.apache.hadoop.mapred.MapTask$MapOutputBuffer$1.run(MapTask.java:413)
> Exception in thread "SortSpillThread" java.lang.NegativeArraySizeException
> at org.apache.hadoop.io.Text.readString(Text.java:388)
> at org.apache.nutch.metadata.Metadata.readFields(Metadata.java:243)
> at org.apache.nutch.protocol.Content.readFields(Content.java:151)
> at org.apache.nutch.util.GenericWritableConfigurable.readFields(GenericWritableConfigurable.java:38)
> at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.spill(MapTask.java:536)
> at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.sortAndSpillToDisk(MapTask.java:474)
> at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.access$100(MapTask.java:248)
> at org.apache.hadoop.mapred.MapTask$MapOutputBuffer$1.run(MapTask.java:413)
> After reverting HADOOP-1965 nutch works just fine.
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