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Thursday, January 31, 2013

JMS Module Uniform Distributed Queue using WLST


This post is continous series of JMS configurations experimenting with Python. Here the JMS module configuration changes for the JMS will be stored to config.xml repository and its sub-deployment module descriptor in a separate file. JMS system module can be defined with name, target to servers or cluster, its related sub-deployments such as Queue or publisher/Subscriber topics.

The WebLogic JMS related Mbeans are constructed as follows :
  • JMSBean
  • JMSSystemReourceMBean
  • QueueBean
  • JMSConnectionFactoryBean
  • DistributedQueueBean
  • UniformDistributedQueueBean
  • SubdeploymentMBean

While configuring you need to understand that JMS system module, that consists of ConnectionFactory that give access to the JMS services, and there could be a different scenario on demand. The machines are high-powered, low powered are in the same cluster then JMS destinations must be distributed destinations with ‘Allocate members Uniformly’ option set to false and manually select more physical destination from the high powered machines.The configuring JMS module is going to have various sub-deployment components in it. First we need to configure the JMS Module name, target to the advanced deployment as sub-deployment. 


Now you need brainstrom, and provide your customized domain with JMS module details in the properties file, let me give you sample :
############################################################################### 
# JMS MODULE CONFIGURATION
############################################################################### 
total_default_jms_module=1
jms_mod_name1=jmsSystemModule
jms_mod_target1=my_cluster

Subdeployment in JMS Module

Most of the Admins not really aware of the use of subdeployment. We need to configure a subdeployment per JMS Module. While configuring the subdeployment we have to provide the target as JMS servers which are configured in the first section. Why we need a subdeployment is interesting topic  • To avoid network traffic between JMS components communication • It will group Connection factories, queues, topics

 • Easy to migrate
WebLogic - JMS Module configuration using WLST

###############################################################################
# JMS SUBDEPLOY CONFIGURATION
###############################################################################
total_subdply=1
subdeployment_name=aJmssub

JMS Connection Factory

We have configured the ConnectionFactory properties as follows
###############################################################################
# JMS CONNECTION FACTORY CONFIGURATION
##########
conf_jndi1=myConnectionFactory
conf_name1=MyConnectionFactory
Configuring Uniform distributed queue using WLST We have configured the Queue with Distributed option because we have multiple JMS providers. The Uniform Distributed Queue is the one of the best practice when you have Clustered WebLogic Domain. While configuring this you need a name for the Uniform Distributed Queue and a JNDI name for it.
###############################################################################
#   UNIFORM DISTRIBUTED QUEUE CONFIGURATION
###############################################################################
total_udq=3
udq_name1=jmsIncomingChannel
udq_jndi1=jms/incoming/response
The JMS Module configuration with Subdeployment target to JMS Servers configured earlier. ConnectionFactory, Uniform Distributed Queue target to subdeployment.
from java.util import Properties
from java.io import FileInputStream
from java.io import File
from java.io import FileOutputStream
from java import io
from java.lang import Exception
from java.lang import Throwable
import os.path
import sys

envproperty=""
if (len(sys.argv) > 1):
        envproperty=sys.argv[1]
else:
        print "Environment Property file not specified"
        sys.exit(2)
propInputStream=FileInputStream(envproperty)
configProps=Properties()
configProps.load(propInputStream)

def createJMSModule(jms_module_name,cluster_target_name):
        cd('/JMSServers')
        jmssrvlist=ls(returnMap='true')
       # jmssrvlist=['AjmsServer1','AjmsServer2']
        cd('/')
        module = create(jms_module_name, "JMSSystemResource")
        cluster = getMBean("Clusters/"+cluster_target_name)
        module.addTarget(cluster)
        cd('/SystemResources/'+jms_module_name)

        module.createSubDeployment(subdeployment_name)
        cd('/SystemResources/'+jms_module_name+'/SubDeployments/'+subdeployment_name)
        list=[]
        for j in jmssrvlist:
                s='com.bea:Name='+j+',Type=JMSServer'
                list.append(ObjectName(str(s)))
        set('Targets',jarray.array(list, ObjectName))


def getJMSModulePath(jms_module_name):
        jms_module_path = "/JMSSystemResources/"+jms_module_name+"/JMSResource/"+jms_module_name
        return jms_module_path

def createJMSTEMP(jms_module_name,jms_temp_name):
        jms_module_path= getJMSModulePath(jms_module_name)
        cd(jms_module_path)
        cmo.createTemplate(jms_temp_name)
        cd(jms_module_path+'/Templates/'+jms_temp_name)
        cmo.setMaximumMessageSize(20)

def createJMSUDQ(jms_module_name,jndi,jms_udq_name):
        jms_module_path = getJMSModulePath(jms_module_name)
        cd(jms_module_path)
        cmo.createUniformDistributedQueue(jms_udq_name)
        cd(jms_module_path+'/UniformDistributedQueues/'+jms_udq_name)
        cmo.setJNDIName(jndi)
    #    cmo.setDefaultTargetingEnabled(bool("true"))
        cmo.setSubDeploymentName(subdeployment_name)

def createJMSConnectionFactory(jms_module_name,cfjndi,jms_cf_name):
        jms_module_path = getJMSModulePath(jms_module_name)
        cd(jms_module_path)
        cf = create(jms_cf_name,'ConnectionFactory')
        jms_cf_path = jms_module_path+'/ConnectionFactories/'+jms_cf_name
        cd(jms_cf_path)
        cf.setJNDIName(cfjndi)
        cd (jms_cf_path+'/SecurityParams/'+jms_cf_name)
        #cf.setAttachJMXUserId(bool("false"))
        cd(jms_cf_path+'/ClientParams/'+jms_cf_name)
        cmo.setClientIdPolicy('Restricted')
        cmo.setSubscriptionSharingPolicy('Exclusive')
        cmo.setMessagesMaximum(10)
        cd(jms_cf_path+'/TransactionParams/'+jms_cf_name)
        #cmo.setXAConnectionFactory(bool("true"))
        cd(jms_cf_path)
        cmo.setDefaultTargetingEnabled(bool("true"))

adminUser=configProps.get("adminUser")
adminPassword=configProps.get("adminPassword")
adminURL=configProps.get("adminURL")

connect(adminUser,adminPassword,adminURL)

edit()
startEdit()

 # ====# JMS CONFIGURATION## ##########################################
total_temp=configProps.get("total_temp")
total_udq=configProps.get("total_udq")
total_conf=configProps.get("total_conf")
tot_djmsm=configProps.get("total_default_jms_module")
subdeployment_name=configProps.get("subdeployment_name")

a=1
while(a <= int(tot_djmsm)):
        var1=int(a)
        jms_mod_name=configProps.get("jms_mod_name"+ str(var1))
        cluster=configProps.get("jms_mod_target"+ str(var1))
        createJMSModule(jms_mod_name,cluster)
        i=1

        while(i <= int(total_temp)):
                t_name=configProps.get("temp_name"+ str(i))
                createJMSTEMP(jms_mod_name,t_name)
                i = i + 1

        j=1
        while(j <= int(total_udq)):
                udq_name=configProps.get("udq_name"+ str(j))
                udq_jndi=configProps.get("udq_jndi"+ str(j))
                createJMSUDQ(jms_mod_name,udq_jndi,udq_name)
                j = j + 1
        k = 1
        while(k <= int(total_conf)):
                conf_name=configProps.get("conf_name"+ str(k))
                conf_jndi=configProps.get("conf_jndi"+ str(k))
                createJMSConnectionFactory(jms_mod_name,conf_jndi,conf_name)
                k = k + 1
        a = a+1

save()
activate(block="true")
disconnect()
############################################################

The properties listed for sample here
###############################################################################
# JMS SUBDEPLOY CONFIGURATION
###############################################################################
total_subdply=1
total_default_jms_module=1
total_conf=1
subdeployment_name=demoSub

###############################################################################
# JMS CONNECTION FACTORY CONFIGURATION
######################################################
conf_jndi1=demoCF
conf_name1=jms/demoCF

###############################################################################
#   UNIFORM DISTRIBUTED QUEUE CONFIGURATION
###############################################################################
 

total_temp=0
total_udq=2
udq_name1=jmsIncomingChannel
udq_jndi1=jms/incoming/response
temp_name1=jmsIncomingChannel1

udq_name2=jmsOutgoingChannel
udq_jndi2=jms/outgoing/response
temp_name2=jmsOutgoingChannel1

adminUser=weblogic
adminPassword=welcome1
adminURL=t3://192.168.1.106:8100
###############################################################################
# JMS MODULE CONFIGURATION
###############################################################################
total_default_jms_module=1
jms_mod_name1=demo_jmsmod
jms_mod_target1=democlstr

To execute this JMS Module with subdeployments you need to pass the properties file as argument
java weblogic.WLST jms_module.py jms_module.properties
pavanbsd@ubuntu:~/pybin$ wlst jmsmodnq.py jmsmodnq.properties

Initializing WebLogic Scripting Tool (WLST) ...

Welcome to WebLogic Server Administration Scripting Shell

Type help() for help on available commands

Connecting to t3://192.168.1.106:8100 with userid weblogic ...
Successfully connected to Admin Server "demoadmin" that belongs to domain "demodomain".

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.

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')
You already have an edit session in progress and hence WLST will
continue with your edit session.

Starting an edit session ...
Started edit session, please be sure to save and activate your
changes once you are done.
drw-   jms_ms1
drw-   jms_ms2

MBean type JMSSystemResource with name demo_jmsmod has been created successfully.
MBean type ConnectionFactory with name jms/demoCF has been created successfully.
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.
Activation completed
Disconnected from weblogic server: demoadmin

Keep writing your comments and suggestions on this post. cheers!!

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