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https://issues.apache.org/jira/browse/MAPREDUCE-5224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13667999#comment-13667999
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Ivan Mitic commented on MAPREDUCE-5224:
---------------------------------------
Thanks Xi for taking time to address all comments! Latest patch looks good to
me, +1
bq. There is no need to use the default file system for the jobhistory. There
is another (orthogonal) bug here. Job history completed location also assumes
the default FS what is not correct. This should be a separate Jira.
I filed a Jira on this: MAPREDUCE-5277
> 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-5224.3.patch,
> MAPREDUCE-5224.4.patch, MAPREDUCE-5224.5.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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