hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6269) Missing synchronization for defaultResources in Configuration.addResource
Date Thu, 15 Oct 2009 08:18:31 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12765960#action_12765960
] 

Todd Lipcon commented on HADOOP-6269:
-------------------------------------

Hi Sreekanth,

What's the concern with the synchronization in the patch? This is not at all a hot section
(it should be called maybe 3-5 times in the course of an entire execution) so I don't think
the lock granularity really matters.

> Missing synchronization for defaultResources in Configuration.addResource
> -------------------------------------------------------------------------
>
>                 Key: HADOOP-6269
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6269
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: conf
>    Affects Versions: 0.20.1
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 0.20.2, 0.21.0
>
>         Attachments: hadoop-6269.txt, hadoop-6269.txt
>
>
> Configuration.defaultResources is a simple ArrayList. In two places in Configuration
it is accessed without appropriate synchronization, which we've seen to occasionally result
in ConcurrentModificationExceptions.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message