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From: "Xi Fang (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Work started] (MAPREDUCE-5224) JobTracker should allow the
 system directory to be in non-default FS
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     [ https://issues.apache.org/jira/browse/MAPREDUCE-5224?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on MAPREDUCE-5224 started by Xi Fang.

> JobTracker should allow the system directory to be in non-default FS
> --------------------------------------------------------------------
>
>                 Key: MAPREDUCE-5224
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5224
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>            Reporter: Xi Fang
>            Assignee: Xi Fang
>            Priority: Minor
>             Fix For: 1-win
>
>
>  JobTracker today expects the system directory to be in the default file system
>         if (fs == null) {
>           fs = mrOwner.doAs(new PrivilegedExceptionAction<FileSystem>() {
>             public FileSystem run() throws IOException {
>               return FileSystem.get(conf);
>           }});
>         }
> ...
>   public String getSystemDir() {
>     Path sysDir = new Path(conf.get("mapred.system.dir", "/tmp/hadoop/mapred/system"));  
>     return fs.makeQualified(sysDir).toString();
>   }
> In Cloud like Azure the default file system is set as ASV (Windows Azure Blob Storage), but we would still like the system directory to be in DFS. We should change JobTracker to allow that.

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