Mmm... As I remember I have some problem with Dspace context in REST API, because it doesn't close the link with database an exhausts the limit of connections to pg database.

You should consider review the limit of connections to postgres. I don't know the addon, so I cant help you about this issue :(

El 14/04/2012 07:16, "Evelio Martínez" <[email protected]> escribió:

Hi Dennis

 

We are using standard JSPUI interface.

The unique exception is for statistics. We are using Minho Stats.

 

We are using the latest version of the addon (v3.1), available at:  

http://projecto.rcaap.pt/index.php/lang-pt/consultar-recursos-de-apoio/remository?func=fileinfo&id=327

 

Is this what you asked for?

By the way, it has some inefficient queries but that is another war to fight on.

 

Regards

Evelio

 

De: Dennis Tobar [mailto:[email protected]]
Enviado el: viernes, 13 de abril de 2012 17:28
Para: Evelio Martínez
CC: [email protected]
Asunto: Re: [Dspace-tech] WARN org.dspace.app.webui.util.UIUtil @ No context, the database might be down or the connection pool exhausted.

 

Hi:

 

I have some questions: Do you have REST API or another external module? Which modules are you using?

 

Regards

 

2012/4/13 Evelio Martínez <[email protected]>

Hello

 

We have a DSpace instance 1.6.2 installed with 16000 items aprox and we are having a  lot of warnings like the one on the email subject.

 

WARN  org.dspace.app.webui.util.UIUtil @ No context, the database might be down or the connection pool exhausted.

 

We can find in 25 days a mean value of 2800 warning messages per day on dspace log file.

 

I have increased  some values on postgresql and DSpace but the problem continue

 

-          RHEL  5.5

6 Gb RAM

 

-          Postgresql 8.4.2

max_connections=500

 

-          DSpace 1.6.2

db.maxconnections = 100

 

-          Tomcat 6.0.33

JAVA_OPTS="$JAVA_OPTS -Xmx1024m -Xms256m -XX:MaxPermSize=384m

 

-          JDK 1.6.0_30

 

Any clue to solve the problem?

 

 

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Evelio Martínez

Director proyectos software.


CISA, CCNA


Dept. de Tecnologías y Sistemas de Información

C/ Garcilaso, 15-bajo
46003 Valencia
Telf: 96 369 41 23 / 677 405 909
Fax: 96 369 34 39

www.masmedios.com

cid:f0154016-8e66-4c6b-9255-4e7524133341

 

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--
Dennis Tobar Calderón
Ingeniero en Informática UTEM
Licenciado en Ciencias de la Ingeniería UTEM

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