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https://issues.apache.org/jira/browse/MAPREDUCE-5224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13661415#comment-13661415
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Xi Fang commented on MAPREDUCE-5224:
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Thanks Ivan for the comments. That is of great help! I will check my code:)
> 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
>
> Attachments: MAPREDUCE-5224.2.patch, MAPREDUCE-5224.patch
>
>
> 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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