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https://issues.apache.org/jira/browse/JCR-4354?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Woonsan Ko updated JCR-4354:
----------------------------
    Description: 
I think it would be nice to have a VFS (commons-vfs) based {{FileSystem}} which 
then can be used by {{BundleFsPersistenceManager}}.

For example, I have worked with a Jackrabbit based WCMS product which 
recommends using one of {{BundleDbPersistenceManager}} components for both 
workspaces and version, which makes it easier for clustering.
One typical problem is that the version storage in DBMS keeps increasing, so as 
a result we've recommended cleaning up older version items periodically. (You 
may google "cms version cleaner" for more info.)
In this case, if they were able to configure a VFS based {{FileSystem}} and the 
generic {{PersistenceManager}}, {{BundleFsPersistenceManager}}, for the 
versions, their DB size would keep small enough, and they may keep the version 
items almost infinitely. Actually versioning are used relatively less than 
other normal functionalities such as content retrieval and searching, only when 
authoring users publish a document in our case. So, keeping version data 
separately from database wouldn't be a problem, as long as it supports easier 
clustering (through WebDAV or SFTP in this option).

Another possible use case is that some people may use VFS based solution for 
both workspaces and version, backed by a clustered WebDAV server or SFTP 
server. They can use VFS-based DataStore provided by JCR-3975 as well. This 
would increase architectural options around Jackrabbit ecosystem.

  was:
I think it would be nice to have a VFS (commons-vfs) based {{FileSystem}} which 
then can be used by {{BundleFsPersistenceManager}}.

For example, I have worked with a Jackrabbit based WCMS product which 
recommends using one of {{BundleDbPersistenceManager}} components for both 
workspaces and version for clustering.
One typical problem is that the version storage in DBMS keeps increasing a lot, 
so as a result we've recommended cleaning up older version items periodically. 
(You may google "cms version cleaner" for more info.)
In this case, if they were able to configure a VFS based {{FileSystem}} and the 
generic {{PersistenceManager}}, {{BundleFsPersistenceManager}}, for the 
versions, their DB size would keep small enough, and they may keep the version 
items almost infinitely. Actually versioning are used very rarely, only when 
authoring users publish a document in our case. So, keeping versions separately 
from database wouldn't be a problem, as long as it's easily clusterable 
(through WebDAV or SFTP for instance).

And, another possible use case is that some people may use VFS based 
{{FileSystem}} and the generic {{PersistenceManager}} for both workspaces and 
version, backed by a clustered WebDAV server or SFTP server. That could help 
increase architectural options as well. Also, they can use VFS-based DataStore 
provided by JCR-3975.


> VFS (commons-vfs) based FileSystem for VFS backend based Persistence Manager
> ----------------------------------------------------------------------------
>
>                 Key: JCR-4354
>                 URL: https://issues.apache.org/jira/browse/JCR-4354
>             Project: Jackrabbit Content Repository
>          Issue Type: Improvement
>            Reporter: Woonsan Ko
>            Priority: Major
>
> I think it would be nice to have a VFS (commons-vfs) based {{FileSystem}} 
> which then can be used by {{BundleFsPersistenceManager}}.
> For example, I have worked with a Jackrabbit based WCMS product which 
> recommends using one of {{BundleDbPersistenceManager}} components for both 
> workspaces and version, which makes it easier for clustering.
> One typical problem is that the version storage in DBMS keeps increasing, so 
> as a result we've recommended cleaning up older version items periodically. 
> (You may google "cms version cleaner" for more info.)
> In this case, if they were able to configure a VFS based {{FileSystem}} and 
> the generic {{PersistenceManager}}, {{BundleFsPersistenceManager}}, for the 
> versions, their DB size would keep small enough, and they may keep the 
> version items almost infinitely. Actually versioning are used relatively less 
> than other normal functionalities such as content retrieval and searching, 
> only when authoring users publish a document in our case. So, keeping version 
> data separately from database wouldn't be a problem, as long as it supports 
> easier clustering (through WebDAV or SFTP in this option).
> Another possible use case is that some people may use VFS based solution for 
> both workspaces and version, backed by a clustered WebDAV server or SFTP 
> server. They can use VFS-based DataStore provided by JCR-3975 as well. This 
> would increase architectural options around Jackrabbit ecosystem.



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