Script to fire GC using WLST

Linux:

#/usr/bin/env python

export CLASSPATH=$CLASSPATH:/opt/java1001/bin::/bea/track10200/wlserver_10.0/server/lib/weblogic.jar

export PATH=$PATH:/opt/java1001/bin::/bea/track10200/wlserver_10.0/server/lib/weblogic.jar::/usr/bin

/bea/track10200/wlserver_10.0/server/bin/setWLSEnv.sh

/bea/track10200/user_projects/domains/track10200/bin/setDomainEnv.sh

while true

do

java weblogic.WLST /bea/track10200/scripts/python/gc.py ls -al | tee -a /bea/track10200/scripts/logs/heapmonitor.out

tempfile=heapmonitor.out

if [ -f $tempfile ]; then rm $tempfile;fi

sleep 5m

sed -i -e '/Welcome*/d' -e '/Initializing*/d' -e '/Type help()*/d' -e '/^ *$/d' /bea/track10200/scripts/logs/heapmonitor.out

done

Python:

import os

import time

localtime = time.asctime(time.localtime(time.time()))

if __name__ == "__main__":   

    from wlstModule import *#@UnusedWildImport 

print 'starting the script ....'

redirect('/dev/null','false')

connect('username','password','adminurl')

domainRuntime()

cd('ServerRuntimes')

servers=domainRuntimeService.getServerRuntimes();

print '================='+ localtime + '========================'

print 'Garbage collections performed will be logged below.'

for server in servers:

    try:

        cd("/ServerRuntimes/"+server.getName()+"/JVMRuntime/"+server.getName())

        if int(get('HeapFreePercent'))< 20:

            cmo.runGC()

            print "*> Finished garbage collect on.." +server.getName()

            freejvm = long(get('HeapFreeCurrent'))/(1024*1024)

            totaljvm = long(get('HeapSizeCurrent'))/(1024*1024)

            usedjvm = (totaljvm - freejvm)           

            print server.getName()+ '\tTotal:' + str(totaljvm) + 'MB' '\tFree:' +str(freejvm) + 'MB' '\tUsed:' +str(usedjvm)+'MB'                            

    except WLSTException,e:

        print e

print '=================================================================='

disconnect()  

exit()