Robert Honeyman

Transcription

1 An Introduction to WebLogic Administration Robert Honeyman

2 WEBLOGIC 11G : WHAT IS IT? Weblogic = 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 Underpins Fusion Middleware Products

3 WEBLOGIC : HIGH LEVEL ARCHITECTURE Domain - logical grouping of WebLogic services Administration Server maintains domain configuration Managed Servers host applications Node Manager host service management Clusters can contain multiple Managed Servers

4 WEBLOGIC : HIGH LEVEL ARCHITECTURE

5 WEBLOGIC : ADMIN SERVER Special server process Runs as a java process Hosts Weblogic Console application Hosts Fusion Middleware Control for FMW apps Maintains domain configuration in config.xml Central configuration point ONLY 1 per domain even with HA

6 WEBLOGIC : NODE MANAGER Remote control of WebLogic server processes Used by Admin Server to start Managed Servers Machines in Weblogic configuration Independent of domain (with 11g) Automated server management Restart Node failover / Server Migration

7 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 SSH to secure communication Script instead of Java process wls_control.sh

8 WEBLOGIC : NODE MANAGER COMMUNICATION

9 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) CustomIdentityXXXXX (keystore configuration for SSL)

10 WEBLOGIC / FMW : STANDARD DIRECTORY LAYOUT

11 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 OPMN Managed Configuration

12 WEBLOGIC : EXERCISE 1 - INSTALLATION Obtain VirtualBox VM Prepare for install (run as root) cd /software./prep.sh reboot Install JDK (run as oracle) su - oracle cd /u01/app/oracle/product/middleware sh /software/jdk-6u45-linux-x64.bin

13 WEBLOGIC : EXERCISE 1 - INSTALLATION Weblogic Silent 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 Manual install (run as oracle) cd /u01/app/oracle/product/middleware java -Xmx1024m -jar /software/wls1036_generic.jar

14 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 No password required to start by default, boot.properties

15 WEBLOGIC: EXERCISE 2 - DOMAIN CONFIGURATION Run the Domain creation tool cd /u01/app/oracle/product/middleware/wlserver_10.3/common/bin./config.sh Select options Domain Source -> 2 Choose custom template Domain Template Location /u01/app/oracle/product/middleware/wlserver_10.3/common/templates/domain s/wls.jar Domain Name 1 *Name: base_domain Domain Location /u01/app/oracle/product/middleware/user_projects/domains Mode ->2 Production Mode JDK ->1 Sun SDK /u01/app/oracle/product/middleware/jdk1.6.0_45 Optional Configuration Skip

16 WEBLOGIC: EXERCISE 2 - DOMAIN CONFIGURATION Check contents of Domain cat $MW_HOME/domain-registry.xml cd $MW_HOME/user_projects/domains ls base_domain Start Node Manager which startnodemanager.sh nohup startnodemanager.sh > /dev/null 2&1 & Start Admin Server cd $MW_HOME/user_projects/domains/base_domain/bin./startWebLogic.sh User Name: weblogic Password: M1ddl3war3

17 WEBLOGIC : CONFIGURE AUTO START Configure boot.properties export DOMAIN_HOME=${MW_HOME}/user_projects/domains/base_domain mkdir $DOMAIN_HOME/servers/AdminServer/security echo \ username=weblogic password=m1ddl3war3" > ${DOMAIN_HOME}/servers/AdminServer/security/boot.properties Start Admin Server without prompt cd $DOMAIN_HOME nohup./startweblogic.sh > AdminServer.out 2>&1 & Verify startup is OK

18 WEBLOGIC: EXERCISE 3 - CREATE A MANAGED SERVER Login to Admin console Navigate to Base_domain > Environment > Servers Create New Server Server Name: mserver01 Server Listen Address: Server Listen Port: 8001 Standalone Server: Checked Start Managed Server cd $MW_HOME/user_projects/domains/base_domain/bin nohup./startmanagedweblogic.sh test-server > test_server.out 2>&1 &

19 WEBLOGIC : APPLICATION ARCHIVES Web Archive (WAR file) web.xml weblogic.xml Web app descriptor WebLogic specific web descriptor Enterprise Archive (EAR file) application.xml JEE descriptor weblogic-application.xml WebLogic specific descriptor

20 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 Offline and Online modes

21 WLST : BASIC COMMANDS Navigation Commands cd(), ls(), pwd() Status commands dumpvariables(), dumpstack() Easy Syntax Use for interactive CLI Brackets and quotes not required easesyntax()

22 WLST : OFFLINE MODE Template management readtemplate(), writetemplate(), addtemplate() Domain creation createdomain() Domain configuration changes readdomain(), updatedomain(), writedomain(), closedomain() Connect to Node Manager, Admin Server nmconnect(), connect(), disconnect()

23 WLST : ONLINE MODE Application Deployments deploy(), redeploy(), undeploy() Control start(), startserver(), shutdown(), resume(), suspend() Recording features startrecording(), stoprecording() Advanced features Data Source configuration Mbean configuration Fusion Middleware Specifc commands

24 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 ${ORACLE_INSTANCE}/diagnostics

25 DIAGNOSTICS : JDK TOOLS jps show processes jstack thread dumps jmap show heap usage jinfo environment settings jstat statistics jconsole GUI monitoring

26 DIAGNOSTICS : USEFUL UNIX TOOLS netstat netstat lnp netstat -an tcpdump tcpdump lsof lsof -i

27 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 WebLogic and FMW packs

28 JVM MEMORY TUNING PARAMETERS Heap configuration -Xmx -Xms -XX:NewSize -XX:MaxNewSize -XX:MaxPermSize -XX:SurvivorRatio Garbage Collection -XX:+UseParallelGC -XX:+UseParallelOldGC -XX:+UseSerialGC -XX:+UseConcMarkSweepGC

29 JVM MEMORY TUNING PARAMETERS Debugging -XX:+PrintGC (or -verbose:gc) -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -Xloggc More information

30 FORMS AND REPORTS : HIGH LEVEL ARCHITECTURE