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Mohamed Salah Sayed
One Database and multible liferay installations
19 de Março de 2010 06:11
Resposta

Mohamed Salah Sayed

Ranking: New Member

Mensagens: 6

Data de entrada: 6 de Fevereiro de 2009

Mensagens recentes

Hello All,
I am new to liferay and I am wandering if the following deployment scenario is okay:
1- Two legs of application servers, which has a liferay running on them.
2- One instance of web server, that load balance between the two legs.
3- One shared Database between the two application servers.

My question is, is there problems in this configuration specilly in the DB, for example the couner ids, will it be okay that the two application servers will not be confused when increamenting the couter in the db ?

Thanks for support

M.Sayed
Abhishek Saxena
RE: One Database and multible liferay installations
19 de Março de 2010 07:20
Resposta

Abhishek Saxena

Ranking: Regular Member

Mensagens: 130

Data de entrada: 17 de Junho de 2009

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Hi ,

The architecture you have proposed is fine you will not face any issues.
Its common to have multiple nodes pointing to same DB.

Which version are you on.
MICHAIL MOUDATSOS
RE: One Database and multible liferay installations
23 de Março de 2012 07:04
Resposta

MICHAIL MOUDATSOS

Ranking: Regular Member

Mensagens: 110

Data de entrada: 4 de Outubro de 2011

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Abhishek Saxena:
The architecture you have proposed is fine you will not face any issues.

Don't you think he should consider disabling User indexing and entity caching?
Juan Gonzalez
RE: One Database and multible liferay installations
23 de Março de 2012 12:07
Resposta

Juan Gonzalez

LIFERAY STAFF

Ranking: Liferay Legend

Mensagens: 1980

Data de entrada: 28 de Outubro de 2008

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Nop. You can have multiple nodes and having cache and indexing properly replicated.

For that only have to enable cluster link and index replication.

Please search for "cluster" in user guide/wiki, there is a section for that.
Hitoshi Ozawa
RE: One Database and multible liferay installations
24 de Março de 2012 02:34
Resposta

Hitoshi Ozawa

Ranking: Liferay Legend

Mensagens: 7954

Data de entrada: 23 de Março de 2010

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Beside the indexes, there's also the prefetch counter problem. Setup distributed caching as Juan advised or set the counter.increment=1. If both are active, use the distributed cache. If one of them is a standby, set the counter.increment to 1.

#
# Set the number of increments between database updates to the Counter
# table. Set this value to a higher number for better performance.
#
counter.increment=100