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Application Server
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How do you establish high
availability concepts in the Oracle Application Server?
High availability is defined by the percentage of time that your
server works normally. You can use hardware cluster for failover to
build High availability.
Hardware cluster is a collection of loosely coupled computers where
a load balancer provides a single view of services.
Failover is a process to relocate an application from failed node to
a standby node. You can install as many redundant infrastructures in
many servers.
You can install as many J2EE and Web Cache Middle-Tier instance.
How can you create a J2EE and Web Cache Cluster?
Assuming you have two J2EE and web caches installed.
$ORACLE_HOME/webcache1
$ORACLE_HOME/webcache2
Their port assignments are in the
$ORACLE_HOME/webcache(1 or 2)/install/portlist.ini files.
Go to webcache1 to create cluster:
<http://hostname1:4000/> -- log on as the �administrator� userid.
Click Clustering under Properties. In the new page, select the
cluster member and click Edit Selected, enter a new name, submit and
restart web cache.
Go to webcache2 to add the web cache to cluster. Click Clustering
under Properties and then click �Add.� Enter information and submit.
In Cache operations, select the new cache cluster and then click
Propagate. Then select all cache and click Restart.
How do you find the DCM user password?
Go to the oidadmin tool, log as �orcladmin�
cn = OracleContext
cn = Products
cn = IAS
IAS Infrastructure Databases
orclReferenceName=<database-name>
OrclResourceName=DCM
How do you deploy an application to OC4J?
First you should create an OC4J instance. In the OC4J control page,
click on the Application tab. In this page, you can deploy EAR or
WAR files. In the deploy application page, type the J2EE application
location, application name, and select �default� as Parent
Application. Click the Finish bottom after you entered the URL
mapping for your Web Modules for example /myapplication. To point
your browser to your application just type: http://<host-name>:<HTTP
listener port>/myapplication.
How do you administer OracleAS business intelligence components?
In this section, you will learn how to access business intelligence
home pages, identify the different components running, start, stop
and restart instances.
# $ORACLE_HOME/bin/emctl stop iasconsole -- to stop or start
enterprise manager
# $ORACLE_HOME/bin/opmn/bin/opmnctl stopall -- to stop or start all
bi components.
To run a report using url:
http://<hostname>:<httpServerPort>/reports/paramform.jsp?userid=.../...@databasname
To run a form using url:
http://<hostname>:<httpServerPort>/forms90/f90servlet?form=your-form-name
To compile the forms:
# f90genm.sh your-form-name.fmb userid=username/password@your-database
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