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Posted to dev@hama.apache.org by "Filipe Manana (JIRA)" <ji...@apache.org> on 2010/10/11 20:07:33 UTC

[jira] Created: (HAMA-305) Redundant use of synchronize keyword

Redundant use of synchronize keyword
------------------------------------

                 Key: HAMA-305
                 URL: https://issues.apache.org/jira/browse/HAMA-305
             Project: Hama
          Issue Type: Bug
            Reporter: Filipe Manana
         Attachments: hama-305.patch

In GroomServer.startNewTask(), we synchronize on the newly created TaskInProgress. This is unnecessary since it's a method local variable. I believe the intention was to synchronize on 'this' or on the collection runningTasks.

Also, when the task is launched, I believe it doesn't need to be inside the synchronized block. The only field it accesses from the parent class is the configuration (conf).

Patch attached.
cheers



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[jira] Resolved: (HAMA-305) Redundant use of synchronize keyword

Posted by "Edward J. Yoon (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HAMA-305?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edward J. Yoon resolved HAMA-305.
---------------------------------

       Resolution: Fixed
    Fix Version/s: 0.2.0
         Assignee: Filipe Manana

Patch looks great. +1
I've just committed this. Thanks!

> Redundant use of synchronize keyword
> ------------------------------------
>
>                 Key: HAMA-305
>                 URL: https://issues.apache.org/jira/browse/HAMA-305
>             Project: Hama
>          Issue Type: Bug
>            Reporter: Filipe Manana
>            Assignee: Filipe Manana
>             Fix For: 0.2.0
>
>         Attachments: hama-305.patch
>
>
> In GroomServer.startNewTask(), we synchronize on the newly created TaskInProgress. This is unnecessary since it's a method local variable. I believe the intention was to synchronize on 'this' or on the collection runningTasks.
> Also, when the task is launched, I believe it doesn't need to be inside the synchronized block. The only field it accesses from the parent class is the configuration (conf).
> Patch attached.
> cheers

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[jira] Updated: (HAMA-305) Redundant use of synchronize keyword

Posted by "Filipe Manana (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HAMA-305?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Filipe Manana updated HAMA-305:
-------------------------------

    Attachment: hama-305.patch

> Redundant use of synchronize keyword
> ------------------------------------
>
>                 Key: HAMA-305
>                 URL: https://issues.apache.org/jira/browse/HAMA-305
>             Project: Hama
>          Issue Type: Bug
>            Reporter: Filipe Manana
>         Attachments: hama-305.patch
>
>
> In GroomServer.startNewTask(), we synchronize on the newly created TaskInProgress. This is unnecessary since it's a method local variable. I believe the intention was to synchronize on 'this' or on the collection runningTasks.
> Also, when the task is launched, I believe it doesn't need to be inside the synchronized block. The only field it accesses from the parent class is the configuration (conf).
> Patch attached.
> cheers

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