Hello all,

We are using JackRabbit 2.4.3 through Magnolia CMS.  Our users had used the 
documents workspace provided by Magnolia to upload large media files (movies, 
audio), some of which are over 100mb.  We migrated all that content away from 
Magnolia/JackRabbit into a regular Apache webserver, and I set up a DataStore 
Garbage Collector task to remove the underlying files that had been make 
unreachable by deleting the nodes.

It turns out that the documents workspace in Magnolia uses versioning, so after 
the GC run, I did not see much of a difference in the repository disk usage.  I 
followed the steps outlined in 
http://stackoverflow.com/questions/3292719/how-do-you-restore-a-versioned-node-in-a-jackrabbit-2-1-repository
 to iterate over all the version history for the workspace, and found the 
versions that were saved for the nodes that we had deleted.  I assume it is the 
version history that prevents the GC from removing the underlying files.

Unlike the code in that post, iterating the version history nodes does not 
return instances of javax.jcr.version.Version, but just regular javax.jcr.Node 
with primary node type nt:version.  I adapted my code accordingly to see the 
versions that are stored.  The question is how do I go about removing these 
versions from the workspace (we absolutely do not need those versions)?  The 
JCR API does not seem to give me any way to even restore these nodes if I 
wanted to, since the API seems to require the original node, from which I can 
then iterate over the saved versions and remove if needed.  In our case the 
original nodes have been removed, so there is no starting point to use to 
iterate over the version history.

For now, I have hacked a solution where, I look up the file name for the 
jcr:data, and then using the directory structure JackRabbit uses, delete the 
underlying files, so I have reclaimed the disk space.  This is obviously 
non-ideal, and I would like to find out the proper way to go about removing old 
versions we do not need and reclaiming the disk space.

Thanks
Rakesh

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