[jira] Created: (ESBJAVA-602) VFS transport should support a locking mechanism

VFS transport should support a locking mechanism
------------------------------------------------

                 Key: ESBJAVA-602
                 URL: https://wso2.org/jira/browse/ESBJAVA-602
             Project: WSO2 ESB
          Issue Type: Improvement
          Components: Core Engine
    Affects Versions: 2.1
         Environment: all env
            Reporter: Ruwan Linton
            Assignee: Ruwan Linton
            Priority: Highest
             Fix For: 2.2


This issue is raised by a user (Harm Verhagen) on the user list, and the issue reads as;

<quote>
Say you have one server uploading flat files to a directory (scp). You have the ESB processing that library using the vfs file listener. to prevent that the ESB starts processing a file is is partially uploaded we'd like to put a file (eg:  lock.txt) in the directory, that blocks reading that file).
</quote>

Further this could be extended to support cluster of servers polling the same directory and the file to be not picked by two servers on the same cluster.

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    [ https://wso2.org/jira/browse/ESBJAVA-602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=28600#action_28600 ]

Ruwan Linton commented on ESBJAVA-602:
--------------------------------------

Implementation mostly done... need to make it configurable :-)

@see https://issues.apache.org/jira/browse/SYNAPSE-565

-Rwuan

> VFS transport should support a locking mechanism
> ------------------------------------------------
>
>                 Key: ESBJAVA-602
>                 URL: https://wso2.org/jira/browse/ESBJAVA-602
>             Project: WSO2 ESB
>          Issue Type: Improvement
>          Components: Core Engine
>    Affects Versions: 2.1
>         Environment: all env
>            Reporter: Ruwan Linton
>            Assignee: Ruwan Linton
>            Priority: Highest
>             Fix For: 2.2
>
>
> This issue is raised by a user (Harm Verhagen) on the user list, and the issue reads as;
> <quote>
> Say you have one server uploading flat files to a directory (scp). You have the ESB processing that library using the vfs file listener. to prevent that the ESB starts processing a file is is partially uploaded we'd like to put a file (eg:  lock.txt) in the directory, that blocks reading that file).
> </quote>
> Further this could be extended to support cluster of servers polling the same directory and the file to be not picked by two servers on the same cluster.

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     [ https://wso2.org/jira/browse/ESBJAVA-602?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ruwan Linton resolved ESBJAVA-602.
----------------------------------

    Resolution: Fixed

Implemented on the synapse-1.3 branch and trunk, so that it will be available in the 2.2 release also this is now available for the nightly builds and Milestone 1 planned for next week will also contain this feature.

> VFS transport should support a locking mechanism
> ------------------------------------------------
>
>                 Key: ESBJAVA-602
>                 URL: https://wso2.org/jira/browse/ESBJAVA-602
>             Project: WSO2 ESB
>          Issue Type: Improvement
>          Components: Core Engine
>    Affects Versions: 2.1
>         Environment: all env
>            Reporter: Ruwan Linton
>            Assignee: Ruwan Linton
>            Priority: Highest
>             Fix For: 2.2
>
>
> This issue is raised by a user (Harm Verhagen) on the user list, and the issue reads as;
> <quote>
> Say you have one server uploading flat files to a directory (scp). You have the ESB processing that library using the vfs file listener. to prevent that the ESB starts processing a file is is partially uploaded we'd like to put a file (eg:  lock.txt) in the directory, that blocks reading that file).
> </quote>
> Further this could be extended to support cluster of servers polling the same directory and the file to be not picked by two servers on the same cluster.

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