Where to start the journey with conherence

Hi All,
I am new to coherence, so would like to know from where I can start exploring cohrence mechanism for caching. I'm trying to explore integrating coherence with webcenter server.
while installing webcenter stand alone server, even coherence will also gets installed (I guess) since I can see in my middleware home a folder with name "coherence_3.6".
How can I start using this with my webcenter application? Can anyone help me on this?

Hi Venky,
I would suggest you to learn the fundamentals of Coherence and start doing basic exercises and/or examples before integrating to WebCenter. I think the tutorial available at the URL below is very useful for people new to Coherence, as it explains step-by-step the basic installation (stand-alone first), the interaction with Java classes and the basic usage of the Coherence API and then more sophisticated steps like advanced features of Coherence, security, interaction with JPA and WebLogic. The tutorial can be seen at http://download.oracle.com/docs/cd/E18686_01/coh.37/e18692/toc.htm
Also, I strongly recommend the "Oracle Coherence 3.5" book written by Aleksandar Seovic, Patrick Peralta and Mark Falco, which can be ordered below:
http://www.packtpub.com/oracle-coherence-35/book
http://www.amazon.com/Oracle-Coherence-3-5-Aleksandar-Seovic/dp/1847196128
Finally, when you have certain knowledge of Coherence, you should be able to integrate it with WebCenter. The following URL may be useful for that: http://cfour.fishbowlsolutions.com/2011/03/09/using-webcenter-and-oracle-coherence-together-discussion-and-how-to/
Hope this helps.
Thanks,
Cris

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Copyright (c) 1991, 2005, Oracle. All rights reserved.
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is there any way to change the user privilege after i have started the managed
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sangita

Thanks again Rob.
Rob Woollen <[email protected]> wrote:
>
>
sangita wrote:
Thanks Rob for been so quick in responding.
I have 3 questions for you:
Running a server under root is a huge security hole.My Question: 1) what are the probable security issues while runninga server under
root ?
are these security issues external(from outside world) or internal(internally
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<
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-- Rob
Iam sorry for asking these "silly" questions(in your opinion) ...butiam a bit
confused.
thanks, sangita
Rob Woollen <[email protected]> wrote:
Running a server under root is a huge security hole.
The usual reason people want to do this is so they can bind to a port
<
1024. ie they want their web server to listen to 80.
There is a set uid option in WLS where you start the server as root
and
then after it binds to the low port, it will switch to another userthat
you specify.
Personally I would not recommend that you go that route. I would
recommend that you start the server as a very unprivileged user andbind
it to some port (say 7001).
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80
on the external net to 7001 on the internal net. That's the solution
I
would recommend.
-- Rob
sangita wrote:
<Sure, it's possible to do this, >
how to do this?
<but why do you want to do it? >
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as "root"...but somebody from that group asked me about this today.
I would not recommend that you start WLS as root on your production
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please advise ....
thanks again.
Rob Woollen <[email protected]> wrote:
Sure, it's possible to do this, but why do you want to do it?
I would not recommend that you start WLS as root on your production
system ever under any cirucmstance.
-- Rob
sangita wrote:
Hi,
is there any way to change the user privilege after i have startedthe managed
server with one user.....say for example ....i have started one
of
my Managed
server as "root" ...but after that i wanted to make this instance
work
under as
"inet"
how do i do this OR is it possible ????
please advise ....
sangita

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==> WARNING:
==> This systemd unit executes rabbitmq as rabbitmq user. This is *DIFFERENT*
==> from the legacy sysvinit scripts included in the package that
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sudo systemctl start rabbitmq
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rabbitmq.service - RabbitMQ Messaging Server
Loaded: loaded (/usr/lib/systemd/system/rabbitmq.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Mon 2014-12-29 02:03:25 GMT; 4s ago
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Main PID: 25549 (code=exited, status=1/FAILURE)
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Has anyone got rabbitmq server working using systemctl?
Last edited by mjandrews (2014-12-29 20:25:13)

I seem to have fixed it now.
I changed /etc/rabbitmq/rabbitmq-env.conf from
NODENAME=rabbit
NODE_IP_ADDRESS=0.0.0.0
NODE_PORT=5672
LOG_BASE=/var/log/rabbitmq
MNESIA_BASE=/var/lib/rabbitmq/mnesia
to
NODENAME=rabbit
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NODE_PORT=5672
HOME=/var/lib/rabbitmq
LOG_BASE=/var/log/rabbitmq
MNESIA_BASE=/var/lib/rabbitmq/mnesia
and that seems to have done the trick.

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