Robert Honeyman

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An Introduction to WebLogic

Administration

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WEBLOGIC 11G : WHAT IS IT?

Weblogic 10.3.3-10.3.6 = 11g

Java EE 5 compliant Application Server

Deployment of compliant App Archives (.ear,.war,.jar) Services / Resources

 JDBC Data Sources – Database connectivity  JMS topics and queues - Messaging

 JNDI resources  Web Services  Security Providers

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WEBLOGIC : HIGH LEVEL ARCHITECTURE

Domain - logical grouping of WebLogic services

Administration Server – maintains domain configuration Managed Servers – host applications

Node Manager – host service management

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WEBLOGIC : ADMIN SERVER

“Special “ server process Runs as a java process

Hosts Weblogic Console application

 http://<mywlhost>:7001/console

Hosts Fusion Middleware Control for FMW apps

 http://<mywlhost>:7001/em

Maintains domain configuration in config.xml Central configuration point

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WEBLOGIC : NODE MANAGER

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Remote control of WebLogic server processes



Used by Admin Server to start Managed Servers



Machines in Weblogic configuration



Independent of domain (with 11g)

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Automated server management

Restart

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WEBLOGIC : NODE MANAGER VERSIONS

Java Based Node Manager

 Optional one-way SSL between client and server (default on)  Runs as Java process listening on port 5556 by default

 nm_password.properties verification for nmConnect()

Script Based Node Manager

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WEBLOGIC : NODE MANAGER PROPERTIES

Configured in nodemanager.properties file

StartScriptEnabled (set to true, false by default) StartScriptName (custom start script name)

NativeVersionEnabled (use shared OS libraries) SecureListener (Enables SSL, true by default)

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WEBLOGIC / FMW: KEY DIRECTORY VARIABLES

MW_HOME (Middleware Home)

 Parent directory for Oracle Software, Java and Weblogic

WL_HOME (Weblogic Home) JAVA_HOME (Java JDK Home) ORACLE_HOME

 Oracle Software binaries

DOMAIN_HOME

 WebLogic Domain Configuration

ORACLE_INSTANCE

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WEBLOGIC : EXERCISE 1 - INSTALLATION

Obtain VirtualBox VM

Prepare for install (run as root)

Install JDK (run as oracle)

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WEBLOGIC : EXERCISE 1 - INSTALLATION

Weblogic Silent install (run as oracle)

Manual install (run as oracle)

cd /u01/app/oracle/product/Middleware java -Xmx1024m \

-jar /software/wls1036_generic.jar -mode=silent \ -silent_xml=/software/silent_linux_1036.xml

cd /u01/app/oracle/product/Middleware

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WEBLOGIC : MODES

Production Mode

 Lock and Edit required for domain changes  No auto-deploy

 Password required to start by default

Development Mode

 No lock required for domain changes  Application auto-deploy

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WEBLOGIC: EXERCISE 2 - DOMAIN CONFIGURATION

Run the Domain creation tool

Select options

cd /u01/app/oracle/product/Middleware/wlserver_10.3/common/bin ./config.sh

Domain Source

-> 2|Choose custom template

Domain Template Location

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WEBLOGIC: EXERCISE 2 - DOMAIN CONFIGURATION

Check contents of Domain

Start Node Manager

Start Admin Server

cat $MW_HOME/domain-registry.xml cd $MW_HOME/user_projects/domains ls base_domain

which startNodeManager.sh

nohup startNodeManager.sh > /dev/null 2&1 &

cd $MW_HOME/user_projects/domains/base_domain/bin ./startWebLogic.sh

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WEBLOGIC : CONFIGURE AUTO START

Configure boot.properties

Start Admin Server without prompt

Verify startup is OK

cd $DOMAIN_HOME

nohup ./startWebLogic.sh > AdminServer.out 2>&1 &

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WEBLOGIC: EXERCISE 3 - CREATE A MANAGED SERVER

Login to Admin console http://<your-ip>:7001/console Navigate to

Create New Server

Start Managed Server

Base_domain

> Environment

> Servers

Server Name: mserver01

Server Listen Address: 192.168.56.50 Server Listen Port: 8001

Standalone Server: Checked

cd $MW_HOME/user_projects/domains/base_domain/bin

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WEBLOGIC : APPLICATION ARCHIVES

Web Archive (WAR file)

 web.xml Web app descriptor

 weblogic.xml WebLogic specific web descriptor

 Enterprise Archive (EAR file)

 application.xml JEE descriptor

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WEBLOGIC : SCRIPTING TOOL - WLST

Scripts to automate administrative functions Python syntax

Jython – Java implementation of Python Command query shell

Weblogic and FMW extensions JMX communication

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WLST : BASIC COMMANDS

Navigation Commands

Status commands

Easy Syntax

 Use for interactive CLI

 Brackets and quotes not required

easeSyntax()

cd(), ls(), pwd()

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WLST : OFFLINE MODE

Template management

Domain creation

Domain configuration changes

Connect to Node Manager, Admin Server

nmConnect(), connect(), disconnect()

readDomain(), updateDomain(), writeDomain(), closeDomain() createDomain()

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WLST : ONLINE MODE

Application Deployments

Control

Recording features

Advanced features

 Data Source configuration  Mbean configuration

 Fusion Middleware Specifc commands

deploy(), redeploy(), undeploy()

startRecording(), stopRecording()

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DIAGNOSTICS : LOG LOCATIONS

Node Manager Logs

 ${WL_HOME}/nodemanager/log

Admin Server Logs

 ${DOMAIN_HOME}/servers/AdminServer/logs

Managed Server Logs

 ${DOMAIN_HOME}/servers/<MSERVER_NAME>/logs

OPMN Managed

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DIAGNOSTICS : JDK TOOLS

jps – show processes jstack – thread dumps jmap – show heap usage jinfo – environment settings jstat – statistics

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DIAGNOSTICS : ADMIN CONSOLES

Weblogic Admin Console

 Stuck and hogging threads  Heap size

 Thread dumps

 JDBC connection pool health

 JMS Queues

 Logging Control

Fusion Middleware Control

 FMW specific monitoring

Cloud Control

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JVM MEMORY TUNING PARAMETERS

Debugging

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