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From Francisco Carriedo Scher <fcarrie...@gmail.com>
Subject Re: JR - Load Balancing & Fault Tolerance
Date Fri, 16 Sep 2011 13:15:16 GMT
Thanks a lot Lukas, sounds very interesting! I will check it for sure!

2011/9/16 Lukas Kahwe Smith <mls@pooteeweet.org>

>
> On Sep 16, 2011, at 14:50 , Francisco Carriedo Scher wrote:
>
> > Hi there,
> >
> > i have been checking the Wiki section about clustering and users' mailing
> > listthe  as well. I am missing some info about what clustering Jackrabbit
> > will provide and what not.
> >
> > It will provide _fault tolerance_ through journaling but, is this feature
> > really mature? I read that there are issues regarding to
> de-synchronisation
> > between journaling and file datastore state, too frequent sync delay
> causes
> > issues too, it is needed to fine tune the configuration enlarging cache
> > size...
>
> at liip we are using rdbms data store (with mysql) and have come up with
> the following solution to be able to globally distribute our cluster nodes:
>
> http://blog.liip.ch/archive/2011/05/04/how-to-make-jackrabbit-globally-distributable-fail-safe-and-scalable-in-one-go.html
>
> > It will _not_ provide built in load balancing so, the only option i see
> so
> > far is to access Jackrabbit through Webdav and use Apache webserver to
> > balance the requests along all the clustered nodes. Again, is this the
> best
> > way and are there any critical issues that i must consider?
>
> i should note that we access jackrabbit via davex and so we use a standard
> load balancer to direct the davex requests. our client lib adds a random
> header to each request which the load balancer uses to determine which
> jackrabbit node to redirect the traffic to.
>
> regards,
> Lukas Kahwe Smith
> mls@pooteeweet.org
>
>
>
>

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