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From "steven zhuang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-7425) ReflectionUtils.setConf would configure anything Configurable twice
Date Wed, 13 Jul 2011 02:41:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-7425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

steven zhuang updated HADOOP-7425:
----------------------------------

    Attachment: test.tar

use the scripts in this tar ball to test the KeyFieldBasedPartitioner.


> ReflectionUtils.setConf would configure anything Configurable twice
> -------------------------------------------------------------------
>
>                 Key: HADOOP-7425
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7425
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: util
>    Affects Versions: 0.21.0
>            Reporter: steven zhuang
>         Attachments: test.tar
>
>
> In  the setConf method of org.apache.hadoop.util.ReflectionUtils, any instance of Configurable
would be configured twice.
> In 0.21.0, KeyFieldBasedPartitioner implements the Configurable interface. When configured
twice, it get two KeyDescription and gives out wrong partition number. 
> public static void setConf(Object theObject, Configuration conf) {
>     if (conf != null) {
>       if (theObject instanceof Configurable) {
>         ((Configurable) theObject).setConf(conf);
>       }
>       setJobConf(theObject, conf);
>     }
>   }

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