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https://issues.apache.org/jira/browse/JCR-2407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12782349#action_12782349
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Martijn Hendriks commented on JCR-2407:
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We've had problems with this once or twice before and as far as I could see the 
cleaning up by GC and shut-down hook worked fine. The issue was that the 
SharedItemStateManager just kept a lot of binary properties in its cache whose 
contents were stored on disk in a small filesystem (via BlobInTempFile) 
instances. We usually use configurations were the blobs are stored through the 
PM in the database.


> Make the disk space used by cached binary properties configurable
> -----------------------------------------------------------------
>
>                 Key: JCR-2407
>                 URL: https://issues.apache.org/jira/browse/JCR-2407
>             Project: Jackrabbit Content Repository
>          Issue Type: Improvement
>          Components: jackrabbit-core
>    Affects Versions: 2.0-beta1
>            Reporter: Martijn Hendriks
>
> Binary properties which are in Jackrabbit's caches (SharedItemStateManager 
> eg) are stored on disk in the temp dir. This can cause problems on small 
> temporary file systems as the size of the binary properties on disk is not 
> limited by Jackrabbit. There is one way to influence this indirectly: make 
> the Jackrabbit cache sizes smaller (via the CacheManager). It could be 
> helpful in some cases if an upper bound on the disk usage can be given. 

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