[opencms-dev] OCEE Cluster architecture

[Filip Kratochvil]

Thank you Kai, we will try to check cache settings.

 

Have a nice weekend too.

 

--
Regards
Filip Kratochvil
------------------------------------------------
NELASOFT Technologies, s.r.o.
E-mail: filip.kratochvil at nelasoft.cz
Web: www.nelasoft.cz <http://www.nelasoft.cz/> 

Twitter: @NELASOFT <https://twitter.com/NELASOFT> 

 

From: opencms-dev-bounces at opencms.org
[mailto:opencms-dev-bounces at opencms.org] On Behalf Of Schliemann, Kai
Sent: Friday, January 16, 2015 12:02 PM
To: The OpenCms mailing list
Subject: Re: [opencms-dev] OCEE Cluster architecture

 

Hi Filip,

we had performance issues in an OCEE Cluster as well. We changed a few
settings especially in the CmsVfsCache section in the ocee-cache.xml.

Do not use the default setting. They don't help very much.

Best thing is you start with a certain value depending on the full amount of
RAM.

A good start value may be 8192 or 16384 for offline and online. But be
careful with the setting of the CmsCacheProperties. We had issues, that
properties were not correctly updated between clusters.

 

Of course I do not know very much about your complete system, but I think
you do not need a third cluster. I think you gain more by correctly setting
your ocee cache parameter. If that does not help, I would suggest using a
tool like dynatrace to find possible performance issues in your custom code.

 

HTH

Have a nice weekend.

 

Kai

 

 

Von: opencms-dev-bounces at opencms.org
[mailto:opencms-dev-bounces at opencms.org] Im Auftrag von Filip Kratochvil
Gesendet: Freitag, 16. Januar 2015 11:35
An: opencms-dev at opencms.org
Betreff: [opencms-dev] OCEE Cluster architecture

 

Hi guys,

 

I'd like to know your opinion to the OpenCms Cluster Architecture.

 

What I'm speaking about?

 

We have 2 nod cluster where ND1 is used for both - content serving and
administration (it is workplace server). ND2 is used only for content
serving (and is "standby" workplace server). We have some problems with
performance. Site have heavy load, we use OCEE Accelerator as so as Flex
cache (+ some files are static exported).

 

I want to know, if the better solution will be use new ND3 as sepparate
workplace server and let ND1 and ND2 only serve content. In this case we
must use OCEE Replication module of course. But my question is - is it "much
better"? Will it improve performance significantly? Or its not necessary and
we can only add ND3 with the same approach?

 

I know it depends on many things. Thank you for your suggestions.

 

--
Regards
Filip Kratochvil
------------------------------------------------
NELASOFT Technologies, s.r.o.
E-mail: filip.kratochvil at nelasoft.cz
Web: www.nelasoft.cz <http://www.nelasoft.cz/> 

Twitter: @NELASOFT <https://twitter.com/NELASOFT> 

 

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