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From "Nicolas De Loof" <nicolas.del...@cgey.com>
Subject Re: question on heavy load website design using struts
Date Fri, 18 Jul 2003 10:21:42 GMT
Thanks Vic.

We allready used PostgreSQL on a "non strategic" project, but our customers aren't open-source
addicts (until they need
to reduce costs !)

Nico.


> FYI, one site I worked on P&T (performance and tuning) we improved
> performance by removing replication.
> Also look at postgresql.org, it is much like Oracle.
>
> (self-promo: keep me in mind for engineering larger sites, I have some
> useful experience with good ROI)
>
> Nicolas De Loof wrote:
>
> > No problem, I'll be patient. I just want my boss to stop saying "Oracle replication"
each time we get
load-ballancing
> > needs.
> >
> > Nico.
> >
> >
> >
> >
> >>Sure! Only a little bit patience,please.It may take me
> >>one or two weeks to go over the test.I used to meet a
> >>problem on container managed security using jboss
> >>cluster.That is,jboss'clusterring feature works fine
> >>except when I use declarative security model to
> >>protect my page,the authenticated principal will not
> >>get replicated across the members in the cluster.At
> >>this time,I want to find a work around to that too.
> >>
> >>Again,thaks for your info.
> >>
> >>Guo Yingshou
> >> --- Nicolas De Loof <nicolas.deloof@cgey.com>
> >>的正文:> Please could you send me feedback if you
> >>experiment
> >>
> >>>this jdbc-cluster-driver ?
> >>>
> >>>Nico
> >>>
> >>>
> >>>
> >>>
> >>>>Nico,
> >>>>
> >>>>Great! That is exactly what I'm looking for.Maybe
> >>>
> >>>I'll
> >>>
> >>>>have some hard time to setup a testing environment
> >>>
> >>>and
> >>>
> >>>>write some code to see what will happen.
> >>>>
> >>>>Thanks a lot!
> >>>>
> >>>>Guo Yingshou
> >>>>
> >>>> --- Nicolas De Loof <nicolas.deloof@cgey.com>
> >>>>的正文:> You could look at this :
> >>>>
> >>>>>http://c-jdbc.objectweb.org/
> >>>>>
> >>>>>this intermediate JDBC driver allow you to
> >>>
> >>>cluster
> >>>
> >>>>>databases. Notice I never used it, use it at
> >>>
> >>>your
> >>>
> >>>>>own risk ;-)
> >>>>>
> >>>>>Nico.
> >>>>>
> >>>>>
> >>>>>
> >>>>>>Hi,
> >>>>>>
> >>>>>>I am sure that someone here must have worked
> >>>
> >>>on a
> >>>
> >>>>>>large website with heavy load using struts and
> >>>
> >>>I
> >>>
> >>>>>>wonder if you'll be kindly enough to give me
> >>>
> >>>some
> >>>
> >>>>>>suggestions in this occasion.
> >>>>>>
> >>>>>>I am using tomcat+jboss as application
> >>>
> >>>server.I
> >>>
> >>>>>have
> >>>>>
> >>>>>>setup several tomcat_jboss instances in a
> >>>
> >>>cluster
> >>>
> >>>>>>environment and of course I use struts in my
> >>>>>>application.HttpSession created in one
> >>>
> >>>instance
> >>>
> >>>>>will
> >>>>>
> >>>>>>get replicated across all members in the
> >>>>>
> >>>>>cluster.It's
> >>>>>
> >>>>>>just what I want.The problem is how should I
> >>>>>
> >>>>>connect
> >>>>>
> >>>>>>the app servers with the backend db server(s)?
> >>>
> >>>If
> >>>
> >>>>>I
> >>>>>
> >>>>>>use only one db instance,all app server can
> >>>>>
> >>>>>connect to
> >>>>>
> >>>>>>it without any problem,but here lies the
> >>>>>
> >>>>>bottleneck.I
> >>>>>
> >>>>>>want to use several db instances(preferrably
> >>>>>>mysql).How can I do that?
> >>>>>>
> >>>>>>Thanks in advance!
> >>>>>>
> >>>>>>Guo Yingshou
> >>>>>>
> >>>>>>
> >>>>>
> >>_________________________________________________________
> >>
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> >>>>>>
> >>>>>
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> >>
> >>>>>>
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> >>
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>
> -- 
> Vic Cekvenich,
> Struts Instructor,
> 1-800-917-JAVA
>
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> recovery in North East.
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