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https://issues.apache.org/jira/browse/HDFS-1053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12847660#action_12847660
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Sanjay Radia commented on HDFS-1053:
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A client side mount table allows application centric filesystem view. Such a
feature is very useful
in an environment that contains multiple namspaces. These can arise today with
multiple independent HDFS clusters. It can also arise when a HDFS cluster has
muitiple namenodes/namepsaced as proposed in HDFS-1052.
Several file systems/naming systems have provided this in the past, especially
in an environment of
remote execution.
* Plan 9:
http://portal.acm.org/citation.cfm?id=506413&dl=GUIDE&coll=GUIDE&CFID=82715774&CFTOKEN=20109739
* The Per-Process View of Naming and Remote Execution:
http://portal.acm.org/citation.cfm?id=613822
* The Spring system:
http://www2.informatik.hu-berlin.de/~mint/Library/Spring/spring-namingpolicy.pshttp://www2.informatik.hu-berlin.de/~mint/Library/Spring/spring-namingpolicy.ps
> A client side mount table to give per-application/per-job file system view
> --------------------------------------------------------------------------
>
> Key: HDFS-1053
> URL: https://issues.apache.org/jira/browse/HDFS-1053
> Project: Hadoop HDFS
> Issue Type: New Feature
> Affects Versions: 0.22.0
> Reporter: Sanjay Radia
> Assignee: Sanjay Radia
> Fix For: 0.22.0
>
>
> This jira proposes a client side mount table to allow application-centric (or
> job-centric) filesystem views.
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