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Posted to dev@jackrabbit.apache.org by "Julian Reschke (Commented) (JIRA)" <ji...@apache.org> on 2011/12/14 18:31:30 UTC

[jira] [Commented] (JCR-2859) Make open scoped locks recoverable

    [ https://issues.apache.org/jira/browse/JCR-2859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13169516#comment-13169516 ] 

Julian Reschke commented on JCR-2859:
-------------------------------------

> Attached a patch. If the session is an admin session and lock is open scoped the session will be
the lock holder so it can be unlocked. 

I think this is problematic. Consider processes running in admin sessions trying to synchronize/reserve using locks. If all admin locks are essentially shared by all admin sessions, this will break big time.

                
> Make open scoped locks recoverable
> ----------------------------------
>
>                 Key: JCR-2859
>                 URL: https://issues.apache.org/jira/browse/JCR-2859
>             Project: Jackrabbit Content Repository
>          Issue Type: New Feature
>          Components: locks
>    Affects Versions: 2.2
>            Reporter: Carsten Ziegeler
>            Assignee: Julian Reschke
>         Attachments: JCR-2859.patch, OpenScopeLockTest.java
>
>
> The lock tokens for open scoped locks are currently tied to the session which created the lock. If the session dies (for whatever reason) there is no way to recover the lock and unlock the node.
> There is a theoretical way of adding the lock token to another session, but in most cases the lock token is not available.
> Fortunately, the spec allows to relax this behaviour and I think it would make sense to allow all sessions from the same user to unlock the node - this is still in compliance with the spec but would make unlocked locked nodes possible in a programmatic way.

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