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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HADOOP-6729) serializer.JavaSerialization should be added to io.serializations by default
Date Wed, 30 Jul 2014 18:30:39 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6729?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer resolved HADOOP-6729.
--------------------------------------

    Resolution: Won't Fix

Closing as won't fix based upon Tom's comments. So it's all his fault.

> serializer.JavaSerialization should be added to io.serializations by default
> ----------------------------------------------------------------------------
>
>                 Key: HADOOP-6729
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6729
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: conf
>    Affects Versions: 0.20.2
>            Reporter: Ted Yu
>
> org.apache.hadoop.io.serializer.JavaSerialization isn't included in io.serializations
by default.
> When a class which implements the Serializable interface is used, user would see the
following without serializer.JavaSerialization:
> java.lang.NullPointerException
>    at
> org.apache.hadoop.io.serializer.SerializationFactory.getSerializer(SerializationFactory.java:73)
>    at
> org.apache.hadoop.mapred.MapTask$MapOutputBuffer.<init>(MapTask.java:759)
>    at
> org.apache.hadoop.mapred.MapTask$NewOutputCollector.<init>(MapTask.java:487)
>    at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:575)
>    at org.apache.hadoop.mapred.MapTask.run(MapTask.java:305)
>    at org.apache.hadoop.mapred.Child.main(Child.java:170)



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