Make sure LRUFileCache doesn't lose files
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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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