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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5293) Symlink resolution requires unnecessary RPCs
Date Sun, 05 Jun 2016 05:58:59 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Vinod Kumar Vavilapalli updated HDFS-5293:
    Target Version/s:   (was: 2.8.0)

Not much going on here for a long time, dropping from 2.8.0.

Not putting any target-version either anymore, let's target this depending on when there is
patch activity.

> Symlink resolution requires unnecessary RPCs
> --------------------------------------------
>                 Key: HDFS-5293
>                 URL: https://issues.apache.org/jira/browse/HDFS-5293
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>    Affects Versions: 2.0.0-alpha, 3.0.0-alpha1
>            Reporter: Daryn Sharp
>            Priority: Critical
> When the NN encounters a symlink, it throws an {{UnresolvedLinkException}}.  This exception
contains only the path that is a symlink.  The client issues another RPC to obtain the link
target, followed by another RPC with the link target + remainder of the original path.
> {{UnresolvedLinkException}} should be returning both the link and the target to avoid
a costly and unnecessary intermediate RPC to obtain the link target.

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