Weblogic Server has an ADR folder containing a sub directory called incident. This directory holds one directory for each incident that happens during an application lifetime.
Each of these individual incident folder can be several Mega Bytes so i use the following to zip them up and delete them. I set it as a cron to run every 5 minutes.
find /MW_HOME/user_projects/domains/my_domain/servers/AdminServer/adr/diag/ofm/apps/myapp/incident -iname "incdir_*" -type d -exec sh -c 'zip -r {}.zip {}' \; -exec rm -rf {} \;
How to create a Java Thread dump
To create a java thread dump in Linux you must send a QUIT signal to your java process. JVM then catches that and prints the thread dump to standard output. If you are running your program from a script that has it's output directed to a file the thread dump will be written to that file obviously .
So first do we need to find the PID of our java program.
ps -ef | grep java
for example this could return :
lapps 3243 3065 21 Nov12 ? 08:01:50 java -Xms2048m -Xmx10g -XX:MaxPermSize=256m -Djava.awt.headless=true -XX:+UseParallelGC -XX:-UseGCOverheadLimit -classpath .:./test.jar:./lib/:./lib/* mypackage.org.TestApp
Now that we have 3243 as the PID, we simply send a QUIT signal to it.
kill -QUIT 3243
So first do we need to find the PID of our java program.
ps -ef | grep java
for example this could return :
lapps 3243 3065 21 Nov12 ? 08:01:50 java -Xms2048m -Xmx10g -XX:MaxPermSize=256m -Djava.awt.headless=true -XX:+UseParallelGC -XX:-UseGCOverheadLimit -classpath .:./test.jar:./lib/:./lib/* mypackage.org.TestApp
Now that we have 3243 as the PID, we simply send a QUIT signal to it.
kill -QUIT 3243
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