Hey Carsten, On Fri, Jan 14, 2011 at 2:47 AM, Carsten Ziegeler <[email protected]>wrote:
> Hi, > > Carl Hall wrote > > We (Sakai Project) are working to replace JCR with a non-JCR backend > > (Cassandra and any JDBC; our mail list details the reasons and factors). > > I'm just curious, can you please give some direct pointers to the > discussion? I think Ian's blog posts [1][2] best detail what we ran into. In short, our usage started going outside the intended usage of JCR. We found that we have a lot of data editors and the amount of ACL changes we make are not conducive to using JackRabbit. JR worked great until we tried to destroy it with a couple hundred threads writing data. Reads looked good the whole time but writing that much made JR sad. I spoke with Ard of JR at ApacheCon and in email about our usage. He wasn't surprised of our findings given our amount of writes. > While this isn't JackRabbit -> ModeShape (staying with JCR will be much > > easier), we can certainly attest that changing the storage engine is > > possible with some work. The Sling code does a great job of decoupling > > itself from the storage mechanism. > We have more features on our list for the resource resolver > (factory/provider) which would allow to create, update and delete > resources as well (I think there is a wiki page regarding this). So if > you need something in this area, maybe it's now a good time to address > these things The resource resolver and resource provider have been invaluable to us. The resource layer in general has made our work much easier. > Regards > Carsten > 1 http://blog.tfd.co.uk/2010/10/17/wrong-content-model/ 2 http://blog.tfd.co.uk/2010/10/15/jackrabbit-performance/ > > > > > > > On Fri, Dec 17, 2010 at 10:27 AM, Alessandro Novarini < > > [email protected]> wrote: > > > >> Hi Simon, > >> > >> Fine for me, we should start working on the server bundle soon. > >> I'll let you know what our progresses are. > >> > >> Thanks > >> Ale > >> > >> > >> On Dec 17, 2010, at 2:28 PM, Gunzenreiner Simon wrote: > >> > >>> Hi Ale > >>> > >>> I posted this question originally. Just to give you an update on where > we > >> stand - we haven't started this work yet, and it probably will be mid > >> January until we do. I suggest we share our findings on this list ... > >>> > >>> Regards > >>> Simon > >>> > >>> -----Ursprüngliche Nachricht----- > >>> Von: Alessandro Novarini [mailto:[email protected]] > >>> Gesendet: Mittwoch, 15. Dezember 2010 18:43 > >>> An: [email protected] > >>> Betreff: Sling+ModeShape > >>> > >>> Hello list, > >>> > >>> I've just subscribed because I would like to know if any progress has > >> been made on the replacement of Jackrabbit with another JCR > implementation, > >> as discussed here: > >>> > >> > http://dev.day.com/discussion-groups/content/lists/sling-users/2010-11/2010-11-16_Replacing_jackrabbit_with_other_JCR_implementation_Gunzenreiner_Simon.html > >>> > >>> I've tried in the last couple of days to work on it too, taking as > sample > >> the org.apache.sling.auth.openid bundle, and I've had some hard time > because > >> at the moment I have little knowledge of ModeShape; anyway, if there was > the > >> will to work openly on the project, I would be glad to contribute in > some > >> way. > >>> > >>> I don't have the original thread as email so sorry for not directly > >> replying to it. > >>> > >>> Thanks > >>> Ale > >> > >> > > > > > -- > Carsten Ziegeler > [email protected] >
