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https://jira.nuxeo.com/browse/NXP-7101?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Florent Guillaume resolved NXP-7101.
------------------------------------
Resolution: Fixed
Fixed by keeping track of all files still referenced, to reuse them if needed
before they are deleted.
http://hg.nuxeo.org/nuxeo/nuxeo-common/rev/e0ea19977ca6
> Make sure LRUFileCache doesn't lose files
> -----------------------------------------
>
> Key: NXP-7101
> URL: https://jira.nuxeo.com/browse/NXP-7101
> Project: Nuxeo Enterprise Platform
> Issue Type: Bug
> Components: Core SQL Storage
> Reporter: Florent Guillaume
> Assignee: Florent Guillaume
> Priority: Major
> Fix For: 5.4.3
>
>
> It seems that in some cases the filesystem file underlying an entry cached by
> {{LRUFileCache}} may be deleted while still in use.
> Proposed scenario for this:
> # Access to binary D1, which is put in the cache, and a File entry D1F1 is
> created for its path.
> # Access to binary D2, which is put in the cache.
> # But the cache is now full and so D1 is marked as to be removed, and becomes
> eligible for GC through {{Framework.trackFile}} as soon as D1F1 is not
> referenced anymore.
> # Access to binary D1, which is refetched and reput in the cache, and a new
> File entry D1F2 is created for its path.
> # The GC removes D1F1 therefore provoking the deletion of D1 on the
> filesystem.
> # D1F2 now refers to a nonexistent file and the next access will throw
> {{FileNotFoundException}}.
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