Deploy WebLogic12c to Multiple Machines
In this post, we set-up a WebLogic cluster that spans multiple machines. We start with installing the WebLogic software on the machines involved. Next, we create the WebLogic domain by using the WebLogic Scripting Tool (WLST). Use pack and unpack to create managed server directories on remote machines. Create start and stop scripts for the environment. Deploy an application and tune it by using deployment override descriptors. Set-up load balancing by using the Apache HTTP Server and show the steps involved in scaling the environment. Finally, we perform a load test by using The Grinder and use JRockit Mission Control to obtain insight in the performance of the cluster.
Install WebLogic
First, we choose an installation directory, for example /home/oracle/weblogic12.1.1. This will be our middleware home in the installation of WebLogic. To keep things simple use the same directory structure on both machines.
To install JRockit we follow these steps:
- Run the file jrrt-4.0.1-1.6.0-linux-x64.bin (JRockit can be downloaded here).
- Click next on the welcome screen.
- Define the install directory
/home/oracle/jrrt-4.0.1-1.6.0and click next. - Optionally select extra components and click next.
- When the installation is finished click done.
To WebLogic we follow these steps:
- Navigate to the JDK’s bin directory (/home/oracle/jrrt-4.0.1-1.6.0/bin).
- Enter the following command:
./java -d64 -Xms1024m -Xmx1024m -jar wls1211_generic.jar(WebLogic can be downloaded here). - Click next on the welcome screen.
- Define the Middleware-Home directory and click next.
- Fill in support credentials if applicable and click next.
- Select custom as installation type and click next.
- De-select the evaluation database and click next.
- Select the installed JDK (if the JDK is not shown, click browse and browse to the root of the JDK) and click next.
- Accept the defaults in the directories screen and click next.
- Click next to start the installation.
- De-select run quickstart and click done.
Create domain
To create our domain, we are going to use WLST. The following script, creates the domain in production mode, disables hostname verification, creates two managed server that are clustered and are present on different machines and creates the artifacts needed to run the application, such as JMS and a data source.
beahome = '/home/oracle/weblogic12.1.1';
pathseparator = '/';
adminusername = 'weblogic';
adminpassword = 'magic12c';
adminservername='AdminServer';
adminserverurl='t3://172.31.0.113:7001';
domainname = 'base_domain';
domaindirectory = beahome + pathseparator + 'user_projects' + pathseparator + 'domains' + pathseparator + domainname;
domaintemplate = beahome + pathseparator + 'wlserver_12.1' + pathseparator + 'common' + pathseparator + 'templates' + pathseparator + 'domains' + pathseparator + 'wls.jar';
jvmdirectory = '/home/oracle/jrrt-4.0.1-1.6.0';
print 'CREATE DOMAIN';
readTemplate(domaintemplate);
setOption('DomainName', domainname);
setOption('OverwriteDomain', 'true');
setOption('ServerStartMode', 'prod');
cd('/Security/base_domain/User/weblogic');
cmo.setName(adminusername);
cmo.setUserPassword(adminpassword);
cd('/');
writeDomain(domaindirectory);
# When using startServer command on WebLogic12c, we have to perform the following steps (1 and 2):
# Starting weblogic server ...
# WLST-WLS-1326447719560: Exception in thread "Main Thread" java.lang.AssertionError: JAX-WS 2.2 API is required, but an older version was found in the JDK.
# WLST-WLS-1326447719560: Use the endorsed standards override mechanism (http://java.sun.com/javase/6/docs/technotes/guides/standards/).
# WLST-WLS-1326447719560: 1) locate the bundled Java EE 6 endorsed directory in $WL_HOME/endorsed.
# WLST-WLS-1326447719560: 2) copy those JAR files to $JAVA_HOME/jre/lib/endorsed OR add the endorsed directory to the value specified by system property java.endorsed.dirs.
print 'START ADMIN SERVER';
startServer(adminservername, domainname, adminserverurl, adminusername, adminpassword, domaindirectory);
print 'CONNECT TO ADMIN SERVER';
connect(adminusername, adminpassword, adminserverurl);
print 'START EDIT MODE';
edit();
startEdit();
#print 'CHANGE NODEMANAGER USERNAME AND PASSWORD';
#cd('/SecurityConfiguration/' + domainname);
#cmo.setNodeManagerUsername(adminusername);
#set('NodeManagerPasswordEncrypted', encrypt(adminpassword, domaindirectory));
#cd('/');
print 'DISABLE HOSTNAME VERIFICATION';
cd('/Servers/' + adminservername + '/SSL/' + adminservername);
cmo.setHostnameVerificationIgnored(true);
cmo.setHostnameVerifier(None);
cmo.setTwoWaySSLEnabled(false);
cmo.setClientCertificateEnforced(false);
cd('/');
print 'SAVE AND ACTIVATE CHANGES';
save();
activate(block='true');
print 'SHUTDOWN THE ADMIN SERVER';
shutdown(block='true');
print 'START ADMIN SERVER';
startServer(adminservername, domainname, adminserverurl, adminusername, adminpassword, domaindirectory);
print 'CONNECT TO ADMIN SERVER';
connect(adminusername, adminpassword, adminserverurl);
print 'START EDIT MODE';
edit();
startEdit();
print 'CREATE MACHINE: machine1';
machine1 = cmo.createUnixMachine('machine1');
machine1.setPostBindUIDEnabled(true);
machine1.setPostBindUID('oracle');
machine1.getNodeManager().setListenAddress('172.31.0.175');
machine1.getNodeManager().setNMType('ssl');
print 'CREATE MACHINE: machine2';
machine2 = cmo.createUnixMachine('machine2');
machine2.setPostBindUIDEnabled(true);
machine2.setPostBindUID('oracle');
machine2.getNodeManager().setListenAddress('172.31.0.113');
machine2.getNodeManager().setNMType('ssl');
print 'CREATE CLUSTER: CLUSTER';
cluster = cmo.createCluster('cluster');
cluster.setClusterMessagingMode('unicast');
print 'CREATE MANAGED SERVER: server1';
server1 = cmo.createServer('server1');
server1.setListenPort(7002);
server1.setListenAddress('172.31.0.175');
server1.setAutoRestart(true);
server1.setAutoKillIfFailed(true);
server1.setRestartMax(2);
server1.setRestartDelaySeconds(10);
server1.getServerStart().setJavaHome(jvmdirectory);
server1.getServerStart().setJavaVendor('Oracle');
server1.getServerStart().setArguments('-jrockit -Xms1024m -Xmx1024m -Xns256m -Xgc:throughput');
print 'CREATE MANAGED SERVER: server2';
server2 = cmo.createServer('server2');
server2.setListenPort(7003);
server2.setListenAddress('172.31.0.113');
server2.setAutoRestart(true);
server2.setAutoKillIfFailed(true);
server2.setRestartMax(2);
server2.setRestartDelaySeconds(10);
server2.getServerStart().setJavaHome(jvmdirectory);
server2.getServerStart().setJavaVendor('Oracle');
server2.getServerStart().setArguments('-jrockit -Xms1024m -Xmx1024m -Xns256m -Xgc:throughput');
print 'ADD MANAGED SERVERS TO CLUSTER';
server1.setCluster(cluster);
server2.setCluster(cluster);
print 'ADD MANAGED SERVERS TO MACHINE';
server1.setMachine(machine1);
server2.setMachine(machine2);
print 'SAVE AND ACTIVATE CHANGES';
save();
activate(block='true');
print 'START EDIT MODE';
startEdit();
print 'CREATE FILESTORE FOR SERVER1';
filestore1 = cmo.createFileStore('FileStore1');
filestore1.setDirectory(beahome + pathseparator + 'deploy');
targets = filestore1.getTargets();
targets.append(server1);
filestore1.setTargets(targets);
print 'CREATE JMS SERVER FOR SERVER1';
jmsserver1 = cmo.createJMSServer('JMSServer1');
jmsserver1.setPersistentStore(filestore1);
jmsserver1.setTargets(targets);
targets.remove(server1);
targets.append(server2);
print 'CREATE FILESTORE FOR SERVER2';
filestore2 = cmo.createFileStore('FileStore2');
filestore2.setDirectory(beahome + pathseparator + 'deploy');
filestore2.setTargets(targets);
print 'CREATE JMS SERVER FOR SERVER2';
jmsserver2 = cmo.createJMSServer('JMSServer2');
jmsserver2.setPersistentStore(filestore2);
jmsserver2.setTargets(targets);
targets.remove(server2);
targets.append(cluster);
print 'CREATE JMS SYSTEM MODULE';
module = cmo.createJMSSystemResource('SystemModule');
module.setTargets(targets);
print 'CREATE SUBDEPLOYMENT';
module.createSubDeployment('SubDeployment');
cd('/JMSSystemResources/SystemModule/SubDeployments/SubDeployment');
set('Targets',jarray.array([ObjectName('com.bea:Name=JMSServer1,Type=JMSServer'), ObjectName('com.bea:Name=JMSServer2,Type=JMSServer')], ObjectName));
cd('/');
resource = module.getJMSResource();
print 'CREATE CONNECTION FACTORY';
resource.createConnectionFactory('ConnectionFactory');
connectionfactory = resource.lookupConnectionFactory('ConnectionFactory');
connectionfactory.setJNDIName('jms/ConnectionFactory');
connectionfactory.setDefaultTargetingEnabled(true);
connectionfactory.getTransactionParams().setTransactionTimeout(3600);
connectionfactory.getTransactionParams().setXAConnectionFactoryEnabled(true);
print 'CREATE UNIFORM DISTRIBUTED QUEUE';
resource.createUniformDistributedQueue('DistributedQueue');
distributedqueue = resource.lookupUniformDistributedQueue('DistributedQueue');
distributedqueue.setJNDIName('jms/CompanyQueue');
distributedqueue.setLoadBalancingPolicy('Round-Robin');
distributedqueue.setSubDeploymentName('SubDeployment');
print 'CREATE DATA SOURCE';
datasource = cmo.createJDBCSystemResource('DataSource');
datasource.setTargets(targets);
jdbcResource = datasource.getJDBCResource();
jdbcResource.setName('DataSource');
names = ['jdbc/exampleDS'];
dataSourceParams = jdbcResource.getJDBCDataSourceParams();
dataSourceParams.setJNDINames(names);
dataSourceParams.setGlobalTransactionsProtocol('LoggingLastResource');
driverParams = jdbcResource.getJDBCDriverParams();
driverParams.setUrl('jdbc:oracle:thin:@hostname:1521:sid');
driverParams.setDriverName('oracle.jdbc.OracleDriver');
driverParams.setPassword('password');
driverProperties = driverParams.getProperties();
driverProperties.createProperty('user');
userProperty = driverProperties.lookupProperty('user');
userProperty.setValue('username');
connectionPoolParams = jdbcResource.getJDBCConnectionPoolParams();
connectionPoolParams.setTestTableName('SQL SELECT 1 FROM DUAL');
connectionPoolParams.setConnectionCreationRetryFrequencySeconds(100);
print 'SAVE AND ACTIVATE CHANGES';
save();
activate(block='true');
print 'SHUTDOWN THE ADMIN SERVER';
shutdown(block='true');
To run the script we can use the following (which also shows the output logging):
[oracle@edu-wls-rh ~]$ cd weblogic12.1.1/wlserver_12.1/common/bin/
[oracle@edu-wls-rh bin]$ ./wlst.sh /home/oracle/weblogic12.1.1/deploy/scripts/create_environment.py
CLASSPATH=/home/oracle/weblogic12.1.1/patch_wls1211/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/home/oracle/weblogic12.1.1/patch_ocp371/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/home/oracle/jrrt-4.0.1-1.6.0/lib/tools.jar:/home/oracle/weblogic12.1.1/wlserver_12.1/server/lib/weblogic_sp.jar:/home/oracle/weblogic12.1.1/wlserver_12.1/server/lib/weblogic.jar:/home/oracle/weblogic12.1.1/modules/features/weblogic.server.modules_12.1.1.0.jar:/home/oracle/weblogic12.1.1/wlserver_12.1/server/lib/webservices.jar:/home/oracle/weblogic12.1.1/modules/org.apache.ant_1.7.1/lib/ant-all.jar:/home/oracle/weblogic12.1.1/modules/net.sf.antcontrib_1.1.0.0_1-0b2/lib/ant-contrib.jar::/home/oracle/weblogic12.1.1/utils/config/10.3/config-launch.jar::/home/oracle/weblogic12.1.1/wlserver_12.1/common/derby/lib/derbynet.jar:/home/oracle/weblogic12.1.1/wlserver_12.1/common/derby/lib/derbyclient.jar:/home/oracle/weblogic12.1.1/wlserver_12.1/common/derby/lib/derbytools.jar::
Initializing WebLogic Scripting Tool (WLST) ...
Welcome to WebLogic Server Administration Scripting Shell
Type help() for help on available commands
CREATE DOMAIN
START ADMIN SERVER
Starting weblogic server ...
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Server started successfully.
CONNECT TO ADMIN SERVER
Connecting to t3://172.31.0.113:7001 with userid weblogic ...
Successfully connected to Admin Server 'AdminServer' that belongs to domain 'base_domain'.
Warning: An insecure protocol was used to connect to the
server. To ensure on-the-wire security, the SSL port or
Admin port should be used instead.
START EDIT MODE
Location changed to edit tree. This is a writable tree with
DomainMBean as the root. To make changes you will need to start
an edit session via startEdit().
For more help, use help(edit)
Starting an edit session ...
Started edit session, please be sure to save and activate your
changes once you are done.
DISABLE HOSTNAME VERIFICATION
SAVE AND ACTIVATE CHANGES
Saving all your changes ...
Saved all your changes successfully.
Activating all your changes, this may take a while ...
The edit lock associated with this edit session is released
once the activation is completed.
WLST-WLS-1326701511109:
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The following non-dynamic attribute(s) have been changed on MBeans
that require server re-start:
MBean Changed : com.bea:Name=AdminServer,Type=SSL,Server=AdminServer
Attributes changed : HostnameVerificationIgnored
Activation completed
SHUTDOWN THE ADMIN SERVER
Shutting down the server AdminServer with force=false while connected to AdminServer ...
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WLST lost connection to the WebLogic Server that you were
connected to, this may happen if the server was shutdown or
partitioned. You will have to re-connect to the server once the
server is available.
Disconnected from weblogic server: AdminServer
Disconnected from weblogic server:
START ADMIN SERVER
Starting weblogic server ...
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