hadoop-mapreduce-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Gera Shegalov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4844) Counters.java doesn't obey Java Memory Model
Date Tue, 04 Dec 2012 19:28:59 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4844?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Gera Shegalov updated MAPREDUCE-4844:

    Attachment: MAPREDUCE-4844-branch-1.patch
> Counters.java doesn't obey Java Memory Model
> --------------------------------------------
>                 Key: MAPREDUCE-4844
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4844
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 1.0.4
>            Reporter: Gera Shegalov
>         Attachments: MAPREDUCE-4844-branch-1.patch
> Counters have a number of immutable fields that have not been declared 'final'.
> For example, the field groups is not final. It is, however, accessed in a couple of methods
that are declared 'synchronized'. While there is a happens-before relationship between these
methods calls, there is none between the Counters object initialization and these synchronized

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

View raw message