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From "Oliver Heger (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CONFIGURATION-530) AbstractFileConfiguration.getProperty(String key) locking causes thread halt
Date Tue, 04 Jun 2013 19:45:21 GMT

    [ https://issues.apache.org/jira/browse/CONFIGURATION-530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13675152#comment-13675152
] 

Oliver Heger commented on CONFIGURATION-530:
--------------------------------------------

Unfortunately, there is not yet a concrete release schedule. There are still some important
points open which need to be fixed before a release.

Because of all these incompatible changes (parts of the API have been completely redesigned)
it certainly makes sense to get out some alpha or beta releases first to get feedback from
the community.
                
> AbstractFileConfiguration.getProperty(String key) locking causes thread halt
> ----------------------------------------------------------------------------
>
>                 Key: CONFIGURATION-530
>                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-530
>             Project: Commons Configuration
>          Issue Type: Bug
>          Components: File reloading
>    Affects Versions: 1.9
>            Reporter: yair ogen
>            Priority: Critical
>             Fix For: 2.0
>
>
> Every call to getProperty causes a lock (related to the reload functionality). In a near
real-time system where we have many concurrent threads this affects heavily on the application
TPS. 
> Possible solution will be: getProperty only returns current value. Reload when needed
occurs in a background thread that updates the in-memory map (perhaps by using CopyOnWrite
collections?).

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