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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6602) ClassLoader (Configuration#setClassLoader) in new Job API (0.20) does not work
Date Tue, 02 Mar 2010 03:27:27 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12839991#action_12839991
] 

Amareshwari Sriramadasu commented on HADOOP-6602:
-------------------------------------------------

This is bug in Configuration and is fixed by HADOOP-6103.

> ClassLoader (Configuration#setClassLoader) in new Job API (0.20) does not work
> ------------------------------------------------------------------------------
>
>                 Key: HADOOP-6602
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6602
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: conf
>    Affects Versions: 0.20.1
>         Environment: Cloudera Hadoop 0.20.1+152
>            Reporter: William Kinney
>             Fix For: 0.20.1
>
>
> new Job/Configuration API's setClassLoader (Configuration#setClassLoader) gets overwritten
w/ {{Thread.currentThread().getContextClassLoader()}} when invoking Job#submit. 
> Upon class to Job#submit, JobClient#submitJobInternal invokes {{JobContext context =
new JobContext(job, jobId);}}, which in the constructor for org.apache.hadoop.mapreduce.JobContext,
wraps Job w/ new JobConf and therefore overwrites set classLoader member @ Configuration via
a init block w/ {{classLoader =  Thread.currentThread().getContextClassLoader();}}

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