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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3093) ma/reduce throws the following exception if "io.serializations" is not set:
Date Mon, 31 Mar 2008 05:42:24 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3093?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amareshwari Sriramadasu updated HADOOP-3093:
--------------------------------------------

    Attachment: patch-3093.txt

Here is a patch adding
1. String[] Configuration.getStrings(String name, String... defaultValue)
2. void Configuration.setStrings(String name, String... values)

> ma/reduce throws the following exception if "io.serializations" is not set:
> ---------------------------------------------------------------------------
>
>                 Key: HADOOP-3093
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3093
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.17.0
>            Reporter: Runping Qi
>            Assignee: Amareshwari Sriramadasu
>             Fix For: 0.17.0
>
>         Attachments: patch-3093.txt, patch-3093.txt
>
>
> map/reduce throws the following exception if "io.serializations" is not set:
> java.lang.NullPointerException
>         at org.apache.hadoop.io.serializer.SerializationFactory.<init>(SerializationFactory.java:52)
>         at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.<init>(MapTask.java:325)
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:177)
>         at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2073)
> Map/reduce should use org.apache.hadoop.io.serializer.WritableSerialization as the default
class as it had in the past.

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