WebLogic for DBAs
11 likes4,781 views
The document provides an overview of WebLogic Server (WLS) architecture, installation, and management, focusing on components such as domains, admin servers, and managed servers. It discusses installation steps including JVM setup, domain configuration, and the use of Oracle Enterprise Manager (OEM) for management. The document also emphasizes the importance of monitoring and automation through tools like the WebLogic Scripting Tool (WLST).
![2) Install WebLogic
E.g.
java -jar wls1036_generic.jar
silent_xml=wls1036.rsp]
[-mode=silent -silent_xml=wls1036.rsp]
◦ On small test environments without much /tmp you can use:
-Djava.io.tmpdir=/softlib/tmp
◦ Don’t forget WLS has PSUs (e.g. 10.3.6.0.3) and quarterly SPUs (fka
CPUs)
Only most relevant screens follow…](https://image.slidesharecdn.com/weblogicfordbas1-5h-130417165853-phpapp02/85/WebLogic-for-DBAs-14-320.jpg)
![WLST Example
Fri 15:45
def create_ds(DS_NAME, DS_PARAMS, TARGETS, JNDI, DB_USER, DB_PASS,
DB_SERVICE, DB_HOSTS, ONS_HOSTS):
cd('/')
cmo.createJDBCSystemResource(DS_NAME)
cd('/JDBCSystemResources/'+DS_NAME+'/JDBCResource/'+DS_NAME)
cmo.setName(DS_NAME)
cd('JDBCDataSourceParams/'+DS_NAME)
set('JNDINames',jarray.array([String(JNDI)], String))
...etc...](https://image.slidesharecdn.com/weblogicfordbas1-5h-130417165853-phpapp02/85/WebLogic-for-DBAs-39-320.jpg)
WebLogic for DBAs
- 1. WebLogic for DBAs Simon Haslam Veriton Limited
- 2. Simon Haslam / Veriton Consultant & Oracle Partner, established for 16 years I mainly work on the middle tier of demanding web & contact-centre applications: architecture planning to installation to troubleshooting (and most things in between!)
- 3. Agenda WebLogic Architecture and Components Installing WLS & Configuring a Domain Oracle Enterprise Manager 12c Managing WebLogic
- 4. Recap. HTTP(S) HTTP(S) used Web Server to return HTTP(S), AJP etc HTML Application Server e.g. SQL*Net Database etc
- 5. Key WebLogic Terms Domain ◦ Grouping of config/resources for an environment ◦ Has one set of administrators/security privileges ◦ Supports one major release of WebLogic at a time ◦ Is run in either ‘Production’ or ‘Development’ mode Admin Server ◦ Only one per domain ◦ Runs the Admin Console Managed Server ◦ The server(s)/JVM that run your app(s) ◦ Cluster(s) distribute your app over several MS Node Manager ◦ Java program that (re)starts your servers (MS & AS)
- 6. Example Architecture Note: with 64 bit OS & VMs it’s becoming common to have one app WebLogic server process per host requests webserver plug-in admin console admin A node manager can server manage multiple managed domains, though this may not be desirable server domain node host manager END
- 7. Component Notes A domain only ever has one Admin Server ◦ it looks after the master config.xml The Admin Server doesn’t actually need to be running all the time ◦ Managed Server Independence (MSI) – the MS can start up/run on its own ◦ AS primarily used for changing configuration or deploying apps ◦ BUT… more reliance post-Oracle on admin apps on AS You want Node Manager running all the time to stop/start WebLogic servers
- 8. Quick Demo WebLogic Console ◦ machines ◦ servers ◦ data sources ◦ deployed applications
- 9. Typical Enterprise Application Load Balancers Web Server Web Server WebLogic WebLogic App App Managed Server Cluster Managed Server Oracle Database Web Services Services Layer
- 10. Agenda WebLogic Architecture and Components Installing WLS & Configuring a Domain Oracle Enterprise Manager – 11g & 12c Managing WebLogic
- 11. Install Middleware Home ◦ ‘binaries’ which may include various Oracle layered products (such as SOA Suite or Forms) ◦ read-only* Domain Home ◦ configuration and logs ◦ can live happily outside the middleware home: nice! ◦ one middleware home / WebLogic installation can be used to run several separate domains * a few parts of Oracle ignore this
- 12. WebLogic Installation Steps 1. Install JVM 2. Install a Middleware Home and WebLogic 3. Configure a Domain Note: I usually install the JVM and use the generic .jar installer (i.e. same for all platforms) rather than using installer bundled with a JVM
- 13. 1) Install JVM Sun HotSpot or JRockit (being merged in Java7/8), or JVM for your platform (e.g. IBM or HP) JRockit specific: ◦ Don’t install demos & samples/source code ◦ You probably don’t want JRockit as the public JRE
- 14. 2) Install WebLogic E.g. java -jar wls1036_generic.jar silent_xml=wls1036.rsp] [-mode=silent -silent_xml=wls1036.rsp] ◦ On small test environments without much /tmp you can use: -Djava.io.tmpdir=/softlib/tmp ◦ Don’t forget WLS has PSUs (e.g. 10.3.6.0.3) and quarterly SPUs (fka CPUs) Only most relevant screens follow…
- 15. Installation
- 18. 3) Configure a Domain You use the config wizard to create domains ◦ $WL_HOME/common/bin/config.sh (.cmd) ◦ there are several other methods too There’s a good chance your app will configure a domain for you (though you may wish to standardise) Only most relevant screens follow…
- 23. Agenda WebLogic Architecture and Components Installing WLS & Configuring a Domain Oracle Enterprise Manager 12c Managing WebLogic
- 24. Enterprise Manager GC/CC Mostly a big java application Runs an Oracle Management Service (OMS) which OEM Agents (a java process running on each remote machine you want to manage) connect to over HTTPS Has a web application that provides the main EM console (and EM CLI)
- 25. EM Cloud Control Fri 11:30 Agent Web Server Oracle Management Administrator Service Managed Server Node Admin Manager Server Software My Oracle Repository Database Library Support Services Layer
- 26. (OEM Grid Control 11g) 11g GC was first OEM release to use WebLogic instead of OC4J You had to install WebLogic yourself first, then use SmartUpdate (BSU) to apply WDJ7 set of patches ◦ online or offline ◦ see http://www.veriton.co.uk/roller/fmw/entry/offline_patching_of_weblogic_server If you’re installing now go straight to EM 12cR2 ☺
- 28. OEM Cloud Control 12c Installer sets up WebLogic for you Some options to customise to be consistent with your environment
- 31. Demo Installation (JDK, WebLogic) Domain creation Startup
- 32. Agenda WebLogic Architecture and Components Installing WLS & Configuring a Domain Oracle Enterprise Manager 12c Managing WebLogic
- 34. Managing WebLogic Admin console is usually starting point Processes to check ◦ java for admin server & managed server ◦ java for nm Node manager (only use java version)
- 35. Admin & Managed server logs are under: ◦ DOMAIN_HOME/servers/<name>/logs ◦ Accessible through console too Monitoring dashboard
- 36. Monitoring Toolset Pure WebLogic ◦ WebLogic Admin Console WebLogic plus middleware components (single system) ◦ OEM Fusion Middleware Control All products ◦ OEM 12c Cloud Control
- 37. Demo Processes Log files Monitoring Dashboard
- 38. Check out WebLogic Scripting Tool wlst.sh ◦ sets environment Initializing WebLogic Scripting Tool (WLST) ... Welcome to WebLogic Server Administration Scripting Shell Type help() for help on available commands wls:/offline> exit()
- 39. WLST Example Fri 15:45 def create_ds(DS_NAME, DS_PARAMS, TARGETS, JNDI, DB_USER, DB_PASS, DB_SERVICE, DB_HOSTS, ONS_HOSTS): cd('/') cmo.createJDBCSystemResource(DS_NAME) cd('/JDBCSystemResources/'+DS_NAME+'/JDBCResource/'+DS_NAME) cmo.setName(DS_NAME) cd('JDBCDataSourceParams/'+DS_NAME) set('JNDINames',jarray.array([String(JNDI)], String)) ...etc...
- 40. Agenda WebLogic Architecture and Components Installing WLS & Configuring a Domain Oracle Enterprise Manager 12c Managing WebLogic
- 42. WebLogic is a java application server ◦ typically delivers HTML over HTTP(S) All WLS processes run on a JVM Middleware home is static; domain home contains config and logs WLS Console is usually first point of contact (though don’t forget about WLST for automation) OEM 12c runs on WebLogic but the installer now does the WLS set up work for you
- 43. Thanks for listening! Twitter: @simon_haslam Oracle Fusion Middleware Architecture & Admin blog: http://simonhaslam.co.uk Fri 11:30 Fri 15:45