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From RafalJanik <r...@softwaremind.pl>
Subject Re: Filesystem, datastore and mysql in JackRabbit
Date Fri, 10 Oct 2008 11:44:14 GMT
Thank  You:)
 I understand how DataStore works. Important thing for was what exactly 
is in  [workspaces/WORKSPACE_NAME/index]
and  I've found it and second thing - is workspace important and 
necessary, e.g. what will happen when I remove this folder -
will db or repository have any problems. I've done it and everything 
seems to be ok - it's why i've asked about workspaces and db.
Alexander Klimetschek pisze:
> Basically all data (JCR nodes and properties) is stored in the
> PersistenceManager, eg. the mysql db in your case. The FileSystem is
> only used if the persistence manager uses it, which is not the case
> for the (recommended) bundle db persistence managers. The Lucene
> search index always uses the filesystem
> (workspaces/WORKSPACE_NAME/index). The datastore is used for large
> binary properties (eg. files stored as nt:file in the repo), which are
> faster when stored separately from smaller properties and on the
> filesystem than in a database (and it avoids duplicates, see
> http://wiki.apache.org/jackrabbit/DataStore).
> Regards,
> Alex
> On Fri, Oct 10, 2008 at 12:44 PM, RafalJanik <rajn@softwaremind.pl> wrote:
>> Hi, I'm trying to understand how JacRabbit works...
>> In my repository.xml I have <datastore> <persistanceManager> with mysql.
>> In datastore there is sended date which size is lower then 100.
>> I know that in MySQL db JackRabbit creates four tables for workspace, but
>> when add nodes with the same properties only the workspace in filesystem is
>> changing and tables in mysqldb. My question is what exactly is putting into
>> db and what into filesystem after adding a new node? Is workspace filesystem
>> only working copy of part of data stored in db? How works connections
>> between datastore and db?
>> Cheers,
>> Rafael

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