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From "Sridhar Raman" <sridhar.ra...@gmail.com>
Subject Re: Saving of nodes takes too long/Indexing configuration
Date Mon, 16 Jul 2007 08:17:40 GMT
Also, how do I switch to bundle persistence?  Currently, this is the
configuration in my workspace.xml file:

>     <PersistenceManager class="
> org.apache.jackrabbit.core.state.db.DerbyPersistenceManager">
>      <param name="url" value="jdbc:derby:${wsp.home}/db;create=true"/>
>      <param name="schemaObjectPrefix" value="${wsp.name}_"/>
>     </PersistenceManager>
>

How do I change it to include the bundle persistance for Derby?

Thanks,
Sridhar

On 7/16/07, Sridhar Raman <sridhar.raman@gmail.com> wrote:
>
> I use DerbyPersistenceManager and LocalFileSystem.  So would I be able to
> switch to bundle persistence in this case, and would it be helpful?
>
> On 7/15/07, Jukka Zitting <jukka.zitting@gmail.com> wrote:
> >
> > Hi,
> >
> > On 7/14/07, Sridhar Raman <sridhar.raman@gmail.com> wrote:
> > > I use Jackrabbit extensively, and one problem that I seem to run into
> > a lot
> > > of times is when I import data, and save the nodes.  For saving 4000
> > nodes,
> > > it almost takes 32 mins to execute the session.save() command.  Any
> > way of
> > > fixing this?
> > >
> > > Is it probably because all my data is getting indexed?  Could I
> > somehow
> > > specify only specific properties/types to be indexed?
> >
> > I much more suspect that the time is spent talking to the persistence
> > store. Are you using an external database for persistence?
> >
> > The traditional database persistence managers issue a separate SQL
> > statement (causing a network roundtrip to the database) for each node
> > *and* property being saved, which can quickly end up taking a lot of
> > time especially if the network roundtrip to a database server takes
> > more than a few milliseconds.
> >
> > Good solutions to this problem are either to switch to the bundle
> > persistence (which uses just a single statement for a node and all
> > it's properties) included in Jackrabbit 1.3 and/or using an embedded
> > database like the default Derby.
> >
> > BR,
> >
> > Jukka Zitting
> >
>
>

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