hadoop-mapreduce-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Mit Desai (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MAPREDUCE-3825) MR should not be getting duplicate tokens for a MR Job.
Date Wed, 16 Apr 2014 22:04:24 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3825?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mit Desai resolved MAPREDUCE-3825.
----------------------------------

          Resolution: Duplicate
    Target Version/s: 2.0.0-alpha, 0.23.3, 3.0.0  (was: 0.23.3, 2.0.0-alpha, 3.0.0)

I see that HADOOP-7967 was fixed and the change needed for this fix has already been checked
in with it.
Resolving this issue as dup.

> MR should not be getting duplicate tokens for a MR Job.
> -------------------------------------------------------
>
>                 Key: MAPREDUCE-3825
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3825
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 0.23.1, 0.24.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>         Attachments: MAPREDUCE-3825.patch, TokenCache.pdf, solution4.patch
>
>
> This is the counterpart to HADOOP-7967.  
> MR gets tokens for all input, output and the default filesystem when a MR job is submitted.

> The APIs in FileSystem make it challenging to avoid duplicate tokens when there are file
systems that have embedded
> filesystems.
> Here is the original description that Daryn wrote: 
> The token cache currently tries to assume a filesystem's token service key.  The assumption
generally worked while there was a one to one mapping of filesystem to token.  With the advent
of multi-token filesystems like viewfs, the token cache will try to use a service key (ie.
for viewfs) that will never exist (because it really gets the mounted fs tokens).
> The descriop



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Mime
View raw message