How to enable and collect debug for HTTP, OC4J and OPMN

How to enable and collect debug for HTTP, OC4J and OPMN

For troubleshooting,we have to perform the following for enable and collect debug information from HTTP, OC4J and OPMN services .

Run the following script on all middle tiers as the application file system owner. A file named after the servername and date will be created in every server under the /tmp directory. Upload the resulting zip file from every server to your service request on Metalink.
zip -r /tmp/`uname -n`_`date +%m%d%y.%H%M`_iAS_CONFIG.zip \
$ORA_CONFIG_HOME/10.1.3/Apache/Apache/conf \
$ORA_CONFIG_HOME/10.1.3/config \
$INST_TOP/pids/10.1.3/Apache \
$ORA_CONFIG_HOME/10.1.3/j2ee/ \
$ORA_CONFIG_HOME/10.1.3/javacache/admin \
$ORA_CONFIG_HOME/10.1.3/network/admin \
$ORA_CONFIG_HOME/10.1.3/opmn
First of all, need to shutdown the http server, oc4j and opmn services, for that:

Then need to take the backup existing log files for safe custody.
$LOG_HOME/ora/10.1.3/Apache
$LOG_HOME/ora/10.1.3/j2ee
$LOG_HOME/ora/10.1.3/opmn

1. Enable http ODL logging

Edit httpd.conf file, add the following to the end of file $ORA_CONFIG_HOME/10.1.3/Apache/Apache/conf/httpd.conf

OraLogMode oracle
OraLogSeverity TRACE:32
OraLogDir $LOG_HOME/ora/10.1.3/Apache/oracle
Please use the full path to $LOG_HOME e.g.
OraLogDir = /u01/inst/apps/JCB_atg/logs/ora/10.1.3/Apache/oracle

Warning: the log.xml file created by the http ODL log can get very large.
Diligence must be taken to monitor this file and maintain its size under the 2GB limit which when exceeded can cause issues with login

2. Increase OC4J logging for java application
edit j2ee-logging.xml adjust the following in file:
$ORA_CONFIG_HOME/10.1.3/j2ee//config/j2ee-logging.xml


Message type: INTERNAL_ERROR, ERROR, WARNING, NOTIFICATION & TRACE
Message level: 1-32 (1 most severe, 32 least)




3. edit orion-web.xml adjust the following in file:
$ORA_CONFIG_HOME/10.1.3/j2ee/oacore/application-deployments/oacore/html/orion-web.xml

debug_mode
true

4. Increase OPMN Logging

edit opmn.xml adjust the following in file:
$ORA_CONFIG_HOME/10.1.3/opmn/conf/opmn.xml



Startup the http server, oc4j and opmn

Reproduce the issue