Link Module and DB App

I use 11.1.1.6 JDeveloper.

I have 20 modules app in my application. Each is set up using the weblogic Server Data Source.

On Weblogic, I configured the Data Source, pooling of max size 50.

While I tried to load test the application, I found the connection DB grow quickly with users to connect and eat 50 connections with only 10 user sessions.

I had

weblogic.jdbc.extensions.PoolLimitSQLException: weblogic.common.resourcepool.ResourceLimitException: no resources currently available in the pool

CentralConnection to allocate to the applications, please increase the size of the pool and try again...

at weblogic.jdbc.common.internal.JDBCUtil.wrapAndThrowResourceException(JDBCUtil.java:252)


Is it assumed that all modules to share the DB connection? seems each module contains a DB data source and never release.

What configuration I missed?

Thank you

You can create of 01:00 and adds the other AMs as nested AMs (but this will also require changes in pageDef files)

What is the configuration that is optimized for the following scenarios:

1. 100 concurrent users

2. top of 1000 concurrent users

Depends on the definition of 'simultaneous user '. If users are concurrent on db level, then you must have db, WLS datasource and AM pool configured to support connections simultaneous db at the minimum of 100 (or 1000).

Is they are simultaneous only on the level of the web session (so they access db at the same time), then it can be treated with the smaller number of cases of AM and db connections (but with AM activation/passivation, which can affect performance).

Here are some tips:

https://docs.Oracle.com/CD/E24382_01/Web.1112/e16182/bcampool.htm#ADFFD1347

http://technology.AMIS.nl/2014/07/01/10-tips-for-ADF-application-module-pool-tuning/

Andrejus Baranovskis Blog: ADF BC Application Module Instance Timeout and addictive Web Session Timeout

Dario

Tags: Java

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