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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15528) Deprecate ContainerLaunch#link by using FileUtil#SymLink
Date Mon, 09 Jul 2018 22:05:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16537672#comment-16537672
] 

Jason Lowe commented on HADOOP-15528:
-------------------------------------

It may be useful to have a config disable for this given it could cause difficulties, but
it'd also be nice if we could avoid users shooting themselves in the foot with this config.
 If we know using this config with some container executors makes no sense then it'd be nice
to either fail fast on NM startup, warn it's being ignored, or otherwise do something smarter
than just failing every container execution in a difficult to debug manner.


> Deprecate ContainerLaunch#link by using FileUtil#SymLink
> --------------------------------------------------------
>
>                 Key: HADOOP-15528
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15528
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Giovanni Matteo Fumarola
>            Assignee: Giovanni Matteo Fumarola
>            Priority: Major
>         Attachments: HADOOP-15528-HADOOP-15461.v1.patch, HADOOP-15528-HADOOP-15461.v2.patch,
HADOOP-15528-HADOOP-15461.v3.patch
>
>
> {{ContainerLaunch}} currently uses its own utility to create links (including winutils).
> This should be deprecated and rely on {{FileUtil#SymLink}} which is already multi-platform
and pure Java.



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