WebLogic for DBAsWebLogic for DBAsWebLogic for DBAsWebLogic for DBAsSimon Haslam

Veriton Limited

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!)

Simon Simon Simon Simon HaslamHaslamHaslamHaslam / / / / VeritonVeritonVeritonVeriton

Agenda

� WebLogic Architecture and Components

� Installing WLS & Configuring a Domain

� Oracle Enterprise Manager 12c

� Managing WebLogic

Recap.Recap.Recap.Recap. �

Web Server

Application Server

Database etc

HTTP(S)

HTTP(S)

used

to return

HTMLHTTP(S), AJP etc

e.g. SQL*Net

Key WebLogic TermsKey WebLogic TermsKey WebLogic TermsKey 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)

�

host

server

admin

server

webserverplug-in

Example ArchitectureExample ArchitectureExample ArchitectureExample Architecture

adminconsole

app

requests

domain nodemanager

nodemanager

managed

server

managed

server

END

Note: with 64 bit OS &

VMs it’s becoming

common to have one

WebLogic server

process per host

A node manager can

manage multiple

domains, though this

may not be desirable

�

Component NotesComponent NotesComponent NotesComponent 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

�

Quick DemoQuick DemoQuick DemoQuick Demo

� WebLogic Console

◦ machines

◦ servers

◦ data sources

◦ deployed applications

�

Cluster

Typical Enterprise ApplicationTypical Enterprise ApplicationTypical Enterprise ApplicationTypical Enterprise Application

Services Layer

WebLogic

Managed Server

WebLogic

Managed Server

Oracle DatabaseServices

Web

Services

Web Server Web Server

Load Balancers

App App

�

Agenda

� WebLogic Architecture and Components

� Installing WLS & Configuring a Domain

� Oracle Enterprise Manager – 11g & 12c

� Managing WebLogic

InstallInstallInstallInstall

� 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

�

WebLogic Installation StepsWebLogic Installation StepsWebLogic Installation StepsWebLogic 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

�

1) Install JVM1) Install JVM1) Install JVM1) 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

�

2) Install WebLogic2) Install WebLogic2) Install WebLogic2) Install WebLogic

� E.g.java java java java ----jar wls1036_generic.jar jar wls1036_generic.jar jar wls1036_generic.jar jar wls1036_generic.jar \\\\[[[[----mode=silent mode=silent mode=silent mode=silent ----silent_xmlsilent_xmlsilent_xmlsilent_xml=wls1036.rsp]=wls1036.rsp]=wls1036.rsp]=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…

�

InstallationInstallationInstallationInstallation

3) Configure a Domain3) Configure a Domain3) Configure a Domain3) 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…

�

Agenda

� WebLogic Architecture and Components

� Installing WLS & Configuring a Domain

� Oracle Enterprise Manager 12c

� Managing WebLogic

Enterprise Manager GC/CCEnterprise Manager GC/CCEnterprise Manager GC/CCEnterprise 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)

�

EM EM EM EM Cloud ControlCloud ControlCloud ControlCloud Control

Services Layer

Repository DatabaseMy Oracle

Support

Web ServerOracle

Management

Service Managed Server

Software

Library

Software

Library

Admin

Server

Agent

AdministratorAdministrator

Node

Manager

�Fri 11:30

(OEM (OEM (OEM (OEM Grid Control Grid Control Grid Control Grid Control 11g)11g)11g)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 ☺

�

�

OEM Cloud Control 12cOEM Cloud Control 12cOEM Cloud Control 12cOEM Cloud Control 12c

� Installer sets up WebLogic for you

� Some options to customise to be consistent with your

environment

�

�

�

DemoDemoDemoDemo

� Installation (JDK, WebLogic)

� Domain creation

� Startup

Agenda

� WebLogic Architecture and Components

� Installing WLS & Configuring a Domain

� Oracle Enterprise Manager 12c

� Managing WebLogic

�

Managing WebLogicManaging WebLogicManaging WebLogicManaging 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)

�

� Admin & Managed server logs are under:

◦ DOMAIN_HOME/servers/<name>/logs

◦ Accessible through console too

� Monitoring dashboard

�

Monitoring ToolsetMonitoring ToolsetMonitoring ToolsetMonitoring Toolset

� Pure WebLogic

◦ WebLogic Admin Console

� WebLogic plus middleware components (single

system)

◦ OEM Fusion Middleware Control

� All products

◦ OEM 12c Cloud Control

�

DemoDemoDemoDemo

� Processes

� Log files

� Monitoring Dashboard

�

Check Check Check Check out WebLogic out WebLogic out WebLogic out WebLogic Scripting ToolScripting ToolScripting ToolScripting 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()

�

WLST WLST WLST WLST ExampleExampleExampleExample

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...

�Fri 15:45

Agenda

� WebLogic Architecture and Components

� Installing WLS & Configuring a Domain

� Oracle Enterprise Manager 12c

� Managing WebLogic

� 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

Thanks for listening!Thanks for listening!Thanks for listening!Thanks for listening!Twitter: @simon_haslam

Oracle Fusion Middleware Architecture & Admin blog:

http://simonhaslam.co.uk

Fri 15:45

Fri 11:30