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Date: Sun, 20 Oct 2013 11:34:33 +0200
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 <CAAuOd=UvV71RUMrQ49=cTVN3cL1xyih-Fbz6QPuAVAdpj79i5w@mail.gmail.com>
Subject: Re: [OT but still JSF]: Clustering, session replication, and
 database, too
From: Thomas Andraschko <andraschko.thomas@gmail.com>
To: MyFaces Discussion <users@myfaces.apache.org>
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Hey,

JFYI:
MyFaces+OWB on Tomcat with MSM is working fine.

Don't know about TomEE.

Regards,
Thomas


2013/10/20 Karl Kild=E9n <karl.kilden@gmail.com>

> Hello! I am also very interested in having more i.e. docs, examples and
> stuff for clustering across the tomee stack. The discussion came up on a
> jira some time ago and after that I asked Thomas to write a new post abou=
t
> it (First part was great!).
>
> For example this is something that sounds really interesting and I want t=
o
> know more:
>
> * do not replicate the session over to other nodes!
>
> My scenarios are usually tomee with one war or tomcat with one war and JS=
F,
> CDI, JPA only.
>
>
> On 20 October 2013 05:48, Howard W. Smith, Jr. <smithh032772@gmail.com
> >wrote:
>
> > I had a question or two, since I have been reading "Java Summit -
> Pitfalls
> > in EE"[1] provided by Mark Struberg while having a discussion on tomee
> user
> > list.
> >
> > The following page stated the following:
> >
> > Page 134
> > Clustering
> >
> > * We use 'asymmetric clustering'
> > * use sticky sessions
> > * backup away the session to a memcached after each
> > request
> > * do not replicate the session over to other nodes!
> > * Session-Replication always in node pairs.
> > * only restore the session from the memcached if a failover
> > happened
> > * msm can be integrated into OWB:
> > http://code.google.com/p/memcached-session-manager/
> >
> > Since it says, 'We use asymmetric clustering' and other suggestions wer=
e
> > made, I found it appropriate to direct my question(s) to MyFaces 'JSF'
> user
> > list and committers.
> >
> > is there some type of blog (or two or three) available that discuss how
> to
> > properly cluster a tomcat/tomee/openwebbeans/myfaces JSF web app? also,
> how
> > is the database replicated? I don't ever see database cluster/replicati=
on
> > discussed by JSF developers; i recently had to search for database
> cluster
> > and saw 'replication', which is something i have not had to worry about
> > since my previous work involved database teams while i was doing
> > front-end/GUI software.
> >
> > now that i am doing java ee and jsf, i would love to know how to do
> > database clustering and/or replicating database while clustering JSF
> > webapp. Of course, right now, i only have one  tomee which references
> > 'apache' derby (which is performing well, but I would love to get my fe=
et
> > wet and cluster my web app + database). i did search derby's mail list
> > archives and i learned about sequioa and HA-JDBC (High-Availability
> JDBC).
> >
> > i was hoping to get an answer from MyFaces 'JSF' users/committers...bas=
ed
> > on their experience. I think someone told me that they use mysql
> > (clustering); my preference is still 'apache' derby (smile). please
> > remember, i'm wondering if any blogs are available that discuss
> clustering
> > tomcat (preference =3D tomee) + JSF web app (with database) + memcached
> > session manager.
> >
> > Thomas has already started writing a blog[2] about this. I'm looking
> > forward to seeing sample config for it all (if available). :)
> >
> > [1]
> >
> >
> http://people.apache.org/~struberg/eesummit2013/Java%20EE%20Summit%20-%20=
pitfalls%20in%20EE.pdf
> >
> > [2]
> >
> >
> http://tandraschko.blogspot.com/2013/09/session-replication-clustering-fa=
ilover.html
> >
>

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