APPS DBA- DOCUMENT
3 Tier architecture:
Desktop Tier
For Desktop tier We need sun JRE plug-in component and it’s invoked when a user choose to access function.
Database Tier
The database tier contains the Oracle database server, which stores all the data maintained by Oracle Applications.
Application Tier
1.web services:- It process http request,The oracle HTTP server (Apache) acts as the web server. It processes the requests received over the network from the desktop clients and includes additional components such as:
• Web Listeners
• Java Servlet Engine
• Java server Pages(JSP)
The Web server may service a request itself by returning the HTML to construct a simple Web page
or pass the request to the servlet engine, which contacts the database server as needed.
2.form services:- It process for form services related, communication between the desktop client and the Oracle database server, displaying client screens and initiating changes in the database according to user actions
3.concurrent processing services:- It supports data-intensive program.
R12 EBS Directory Structure:
DB_TIER :- 10.2.0.2 RDBMS ORACLE_HOME
APPS_TIER:- 10.1.2 ---Its supporting forms based application.
10.1.3—It will be used by java –based application and it bring with lastest code OC4J.
OACORE services:- Its supports frame work based application(where we can build and deploy web based application)
Forms service:- Its supports form based application.
Oafm:- Its is expanded to fusion middleware for wenservices& maplinks
Types of Concurrent Managers
• Internal Concurrent Manager :- The Internal Concurrent Manager (ICM) controls all other concurrent managers. It administers the startup and shutdown of managers as defined by their work shift, monitors for process failure, and cleans up if a failure occurs.
• Standard Manager :- The Standard Manager will accept and run any concurrent requests, as it has no specialization rules that would restrict its activities.
• Conflict Resolution Manager :- The Conflict Resolution Manager (CRM) ensure that incompatible concurrent requests do not run in the same conflict domain.
3 Tier architecture:
Desktop Tier
For Desktop tier We need sun JRE plug-in component and it’s invoked when a user choose to access function.
Database Tier
The database tier contains the Oracle database server, which stores all the data maintained by Oracle Applications.
Application Tier
1.web services:- It process http request,The oracle HTTP server (Apache) acts as the web server. It processes the requests received over the network from the desktop clients and includes additional components such as:
• Web Listeners
• Java Servlet Engine
• Java server Pages(JSP)
The Web server may service a request itself by returning the HTML to construct a simple Web page
or pass the request to the servlet engine, which contacts the database server as needed.
2.form services:- It process for form services related, communication between the desktop client and the Oracle database server, displaying client screens and initiating changes in the database according to user actions
3.concurrent processing services:- It supports data-intensive program.
R12 EBS Directory Structure:
DB_TIER :- 10.2.0.2 RDBMS ORACLE_HOME
APPS_TIER:- 10.1.2 ---Its supporting forms based application.
10.1.3—It will be used by java –based application and it bring with lastest code OC4J.
OACORE services:- Its supports frame work based application(where we can build and deploy web based application)
Forms service:- Its supports form based application.
Oafm:- Its is expanded to fusion middleware for wenservices& maplinks
Types of Concurrent Managers
• Internal Concurrent Manager :- The Internal Concurrent Manager (ICM) controls all other concurrent managers. It administers the startup and shutdown of managers as defined by their work shift, monitors for process failure, and cleans up if a failure occurs.
• Standard Manager :- The Standard Manager will accept and run any concurrent requests, as it has no specialization rules that would restrict its activities.
• Conflict Resolution Manager :- The Conflict Resolution Manager (CRM) ensure that incompatible concurrent requests do not run in the same conflict domain.
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