Can I rotate application log in OC4J_Portal_default_island_1?

Question

My application.log file in %oracle_home%\j2ee\oc4j_portal\application-deployments\portal\oc4j_portal_default_island_1 grows quickly. Can I configure it to rotate every day or when it reaches a certain size? If yes, how?
TIA
Edited by: Angrydot on Aug 25, 2008 9:51 PM - what happens if I edit an old post in the new forum?
Edited by: Angrydot on Aug 25, 2008 9:52 PM - nothing

Answer 1

To rotate the OC4J log files under $ORACLE_HOME/opmn/logs, there are few parameters you can modify that are not documented in Oracle 9.0.4/10.1.2 documentation.
[New JVM parameters]
"stdstream.filesize"
Max file size limit of each archive. Unit is megabyte.
"stdstream.filenumber"
Max number of files that oc4j can keep as archives. The oldest file will be automatically deleted if the limit is exceeded.
[Usage]
ex 1: rotate stdout/stderr when the file size is reached to 2.5M byte.
java -Dstdstream.filesize=2.5 -jar oc4j.jar -out std.out -err std.err
OraHome\opmn\conf\opmn.xml
In order to get these parameters in opmn.xml you need to define it as follows:
<category id="start-parameters">
<data id="java-options" value="-server -Djava.security.policy=$ORACLE_HOME/j2ee/home/config/java2.policy -Djava.awt.headless =true -Dstdstream.filesize=0.2 -Dstdstream.filenumber=5"/>
<data id="oc4j-options" value="-out std.out -err std.err"/>
</category>
The new log files will be created under:$ORACLE_HOME\j2ee\home\home_default_island_1\
The file naming will be like:
std_2006_02_22_14_01_17.out
std_2006_02_22_14_16_25.out
Important notes:
1. Backup opmn.xml file before any modification.
2. Modify opmn.xml file to specify stdstream.filesize and stdstream.filenumber. See the example above.
3. Test and validate this solution in your test system first before implementing in Production.