Showing posts with label weblogic start at server boot. Show all posts
Showing posts with label weblogic start at server boot. Show all posts

Monday, February 13, 2012

Weblogic Server as Daemon Process

Script to start WebLogic domain server at  Machine Start in distributed environment .


I had a requirement to configure weblogic server to start at the server reboot on linux machine , i.e. to configure weblogic server as a daemon process. In my case the weblogic domain was distributed over two different physical machines .

Challenges :



  • In Weblogic Domain Admin Server should be started First.

  • After the Admin Server has come to RUNNING state, then we can start the Managed Server  of the local Machine and Remote Machine.


Steps :



  • Here I will mention the steps I followed to write the shell script to complete the above mentioned task. I will post the code snippet and the task they fulfill and in the end I will provide the complete


First task is to start the Weblogic Admin Server using the startWeblogic.sh file from $DOMAIN_HOME/bin dir.

My code snippet to check for the domain dir, then check for any nohup.out file existing or not and then finally start the server .
domain=/Middleware/user_projects/domains/BASE_DOMAIN
# Clear the nohup file that is existing
echo ${domain}/bin
cd ${domain}/bin
if [ `pwd` == ${domain}/bin ]
then
if [ -f nohup.out ]
then
rm -f nohup.out
fi
fi

# Start the Weblogic Admin Server.
echo " Starting Weblogic Admin Server "
nohup ./startWebLogic.sh &

 

Now we have to get the status of the Admin Server and wait till the Server comes in RUNNING State. For that I will use the weblogic.Admin GETSTAT command with below snippet .
CLASSPATH="/opt/Middleware1032/wlserver_10.3/server/lib/weblogic.jar${CLASSPATH}"
export CLASSPATH

status=`java weblogic.Admin -adminurl t3://host1.com:7231 -username weblogic -password weblogic123 GETSTATE AdminServer | awk '{print$6}'`

printf "Admin Server is Starting "

count=1
while [ "$status" != "RUNNING" ]
 do
 printf "."
 status=`java weblogic.Admin -adminurl t3://host1.com:7231 -username weblogic -password weblogic123 GETSTATE AdminServer | awk '{print$6}'`
 count=$count+1
 if [ $count -gt 100 ];
  then
  echo " There is some problem with admin server "
  exit 0
 fi
done

After Admin Server has come to RUNNING state we will start the Managed Server of local machine.
if [ "$status" == "RUNNING" ];
  then
  echo "Admin Server is running "
  echo "Starting Managed Server "
  cd ${domain}/servers/MS1/bin
  if [ `pwd` == ${domain}/servers/MS1/bin ]
     then
     if [ -f nohup.out ]
        then
        rm -f nohup.out
     fi
  fi

  ./startMS1.sh

  echo " Managed Server is Starting "

  echo " do : tail -f $pwd/nohup.out  to check the status of Server "

  fi

Once Managed Server of local machine is started we will start the Managed Server of Remote Machine with below snippet.
# starting Managed Server on remote machine
#
MACHINE2=host2.com
if  ping -c 1 -w 10 $MACHINE2
  then
  echo "This machine is up and reachable"
  echo " Checking MS2 server PID "

# Getting PID of MS2 on MACHINE2

PID=`ssh weblogic@host2.com \`\`ps -ef |grep -v grep |grep  weblogic.Name=MS2 | awk '{print\$2}'\`\``

echo $PID

if [ -z "$PID" ]
then
echo " MS2  Server not running "
echo " Starting MS2 Server "
ssh weblogic@host2.com '/flexcube/user_projects/domains/BASE_DOMAIN/servers/MS2/bin/startRelease1.sh ;/flexcube/user_projects/domains/BASE_DOMAIN/servers/MS2/bin/nohup.out'

else

#CLASSPATH="/oracle/app/Middleware1032/wlserver_10.3/server/lib/weblogic.jar${CLASSPATH}"
#export CLASSPATH

MS2_status=`java weblogic.Admin -adminurl t3://host2.com:7231 -username weblogic -password weblogic123 GETSTATE MS2 | awk '{print$6}'`

if [ "$MS2_status" = "RUNNING" ]
  then
  echo " MS2 is already Running "
  echo " exiting from script"
exit 0
else
  echo " MS2 PID=$PID exist and current state of server is $MS2_status"
fi

fi

fi

The complete script startBASE_DOMAIN.sh is available here :


One additional script has been used ,  startMS1.sh is available here :


${domain}/servers/MS1/bin .  The additional script can be found at below location.

Configuring the Above script in init.d directory.

In Linux : /etc/init.d

In AIX :   /etc/rc.d/init.d

Create a file weblogic.sh with the below contents :
#!/bin/sh
# Start the weblogic domains
su - weblogic -c "/opt /Middleware1032/wlserver_10.3/server/bin/startNodeManager.sh"
su - weblogic -c "/opt/user_projects/domains/scripts/startup/startBASE_DOMAIN.sh"

Now create soft link in /etc/rc.d/rc5.d with any name starting with S98 as given below:
Linux
ln –s  /etc/init.d/weblogic.sh S98weblogicstart

 AIX
ln –s /etc/rc.d/init.d/weblogic.sh S98weblogicstart

 
startBASE_DOMAIN.sh

#!/bin/sh
# To Start BASE_DOMAIN Domain while server start
# Written by Sandeep Singh
#
umask 037

domain=/flexcube/user_projects/domains/BASE_DOMAIN

# Clear the nohup file that is existing
echo ${domain}/bin
cd ${domain}/bin
if [ `pwd` == ${domain}/bin ]
then
if [ -f nohup.out ]
then
rm -f nohup.out
fi
fi

# Start the Weblogic Admin Server.
echo " Starting Weblogic Admin Server "
nohup ./startWebLogic.sh &

CLASSPATH="/opt/app/Middleware1032/wlserver_10.3/server/lib/weblogic.jar${CLASSPATH}"
export CLASSPATH

status=`java weblogic.Admin -adminurl t3://host1.com:7231 -username weblogic -password weblogic123 GETSTATE AdminServer | awk '{print$6}'`
printf "Admin Server is Starting "
count=1
while [ "$status" != "RUNNING" ]
do
printf "."
status=`java weblogic.Admin -adminurl t3://host1.com:7231 -username weblogic -password weblogic123 GETSTATE AdminServer | awk '{print$6}'`
count=$count+1
if [ $count -gt 40 ];
then
echo " There is some problem with admin server "
exit 0
fi
done
if [ "$status" == "RUNNING" ];
then
echo "Admin Server is running "
echo "Starting Managed Server "

cd ${domain}/servers/MS1/bin
if [ `pwd` == ${domain}/servers/MS1/bin ]
then
if [ -f nohup.out ]
then
rm -f nohup.out
fi
fi

./startMS1.sh
echo " Managed Server is Starting "
echo " do : tail -f $pwd/nohup.out  to check the status of Server "
fi

# Starting Managed Server on remote machine
#
MACHINE2=host2.com

if  ping -c 1 -w 10 $MACHINE2
then
echo "This machine is up and reachable"
echo " Checking MS2 server PID "

# Getting PID of MS2 on MACHINE2

PID=`ssh weblogic@host2.com \`\`ps -ef |grep -v grep |grep  weblogic.Name=MS2 | awk '{print\$2}'\`\``
echo $PID
if [ -z "$PID" ]
then
echo " MS2 Server not running "
echo " Starting MS2 Server "
ssh weblogic@host2.com '/flexcube/user_projects/domains/BASE_DOMAIN/servers/MS2/bin/startMS2.sh >/flexcube/user_projects/domains/BASE_DOMAIN/servers/MS2/bin/nohup.out &'
else
#CLASSPATH="/opt/app/Middleware1032/wlserver_10.3/server/lib/weblogic.jar${CLASSPATH}"
#export CLASSPATH
MS2_status=`java weblogic.Admin -adminurl t3://host1.com:7231 -username weblogic -password weblogic123 GETSTATE MS2 | awk '{print$6}'`

if [ "$MS2_status" = "RUNNING" ]
then
echo " MS2 is already Running "
echo " exiting from script"
exit 0
else
echo " MS2 PID=$PID exist and current state of server is $MS2_status"
fi
fi

fi

 

startMS1.sh



#!/bin/sh
#  Purpose : Starting the SOA SERVER1 of DOMAIN : BASE_DOMAIN
#
# WARNING: This file is created by the Configuration Wizard.
# Any changes to this script may be lost when adding extensions to this configuration.

export HOME=/flexcube/user_projects/domains/BASE_DOMAIN
export SR=MS1

nohup ${HOME}/bin/startManagedWebLogic.sh ${SR} http://host1.com:7231 &

 

 
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