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From "Richard S. Hall (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (FELIX-3125) [Framework] Use single file per bundle in bundle cache by default
Date Tue, 20 Sep 2011 19:42:08 GMT

     [ https://issues.apache.org/jira/browse/FELIX-3125?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Richard S. Hall closed FELIX-3125.
----------------------------------

    Resolution: Fixed

I committed a patch to change the default; closing this issue.

> [Framework] Use single file per bundle in bundle cache by default
> -----------------------------------------------------------------
>
>                 Key: FELIX-3125
>                 URL: https://issues.apache.org/jira/browse/FELIX-3125
>             Project: Felix
>          Issue Type: Improvement
>          Components: Framework
>    Affects Versions: framework-3.2.2
>            Reporter: Richard S. Hall
>            Assignee: Richard S. Hall
>            Priority: Minor
>             Fix For: framework-4.0.0
>
>
> FELIX-2654 modified the bundle cache so it would use a single file per bundle to store
bundle-related state (e.g., location, persisted state, etc.). The main reason was to reduce
the amount of I/O performed during framework startup when you have lots of already cached
bundles. This feature was disabled by default, since it didn't seem proper to introduce it
in a micro release when it would result in bundle caches not being backward compatible with
previous micro releases of 3.0.x.
> WIth the coming framework 4.0 release, we should switch this to be the default. Which
means that new bundle caches created on 4.0 will not work with older releases. However, bundle
caches created with older releases will be seamlessly converted by 4.0. Older caches will
be converted non-destructively, so it is possible to go back, but if changes are made while
running 4.0 on an older cache, then it is possible that they will get out of sync and will
potentially no longer be backward compatible.
> For the foreseeable future, we can keep the felix.cache.singlebundlefile property which
allows you to revert to the old behavior if you so choose. At some point in the future, though,
it would be desirable to eliminate this property too and only support the new cache format.

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