WebSphere Application Server - Introduction, Monitoring Tools, & Administration

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1 WebSphere Application Server - Introduction, Monitoring Tools, & Administration presented by: Michael S. Pallos, MBA Senior Solution Architect IBM Certified Systems Expert: WebSphere MQ 5.2 e-business Solution Designer/Technologist Candle Corporation

Pallos, MBA Senior Solution Architect IBM Certified Systems

2 Agenda Candle Corporation WAS Architecture Overview Administrative Tasks (basic) Monitoring Tools Analyst s Review Q & A

3 Candle Corporation Managing What Matters Most 26 Years in the industry One of the largest privately owned software and services providers in the world 1200 professionals Offices worldwide in 50+ countries 550 consultants Profitable, significant R&D investments

services providers in the world 1200 professionals Offices

4 Architecture

5 General Architecture WebSphere Application Server is based on the IBM Enterprise Server for Java Specification Three logical tiers within the application server: Core HTTP engine Web Container (Servlet engine) EJB Container (Enterprise Java Bean engine) Communication between tiers implemented as plugins This makes performance tuning a combinatorial problem Configuration changes propagate and side effects cascade WAS 5.0 is J2EE 1.3 WAS 4.x is J2EE 1.2 no JMS or JCA

(Enterprise Java Bean engine) Communication between tiers implemented as plugins This makes performance tuning a

6 General Architecture Core HTTP engine / Web Server Connection manager Native Web server plug-in Web Container / (Servlet engine) EJB Container Interface EJB Container JTS JBDC JNDI IIOP Tools to create, test, deploy, and manage Web applications

(Servlet engine) EJB Container Interface EJB Container JTS

7 Core HTTP Engine Handles requests for static resources HTML CGI programs Plug-ins applications Graphics Sends servlet requests to the Web Container Logs into the servlet engine Core HTTP engine

8 Core HTTP Engine Core HTTP engine Core HTTP engine Core HTTP engine First line of scalability by using an HTTP sprayer (IND) with multiple servers running in a cluster Can use the roundrobin method or intelligent routing based on real-time workload metrics

with multiple servers running in a cluster Can use the

9 Core HTTP Engine Interactive Network Dispatcher HTTP Engine Instance 1 HTTP Engine Instance 2 HTTP Engine Instance n Shared or Replicated Resources, Shared Database, Shared Files, Shared Sessions

10 Core HTTP Engine Measuring performance: Response time Turnaround time for handling a single HTTP request Throughput Total number of simple HTTP requests that can be handled by the engine in one second Core HTTP engine

Throughput Total number of simple HTTP requests that

11 Web Container Web Container Run-time environment plugs into supported Web servers via ISAPI and NSAPI Passes servlet requests to servlet manager Servlet manager processes request and sends data back to client

NSAPI Passes servlet requests to servlet manager

12 Web Container Contains most tuning points Very sensitive to topology choices Can be cloned Sometimes it helps boost performance depending on the platform Web Container Connection Web Container manager Servlet engine

it helps boost performance depending on the platform

13 Servlet Engine Generic Apache IIS Netscape Go Domino Various WebSphere App. Server Plug-Ins Servlet Service Manager SSI JNDI/LDAP IIOP Session State User Profile Enhanced Servlet API Java SSL Servlets EJB Container With JTS GWAPI Plug-Ins JSPs Connector Beans and Connection Manager Config Svc JSP Processor <HTML> <HTML> <HTML> <JAVA> <JAVA> <JAVA> If( ) If( ) If( ) <Servlet> <Servlet> <Servlet> Configuration requests from common Web-based UI Configuration Repository (property files or LDAP) Isolated in its own Process(es) Java connectors to various back ends, CICS, etc

JTS GWAPI Plug-Ins JSPs Connector Beans and Connection Manager Config Svc JSP Processor <HTML> <HTML> <HTML> <JAVA> <JAVA> <JAVA> If( ) If( )

14 EJB Container Handles lifecycle and persistence for EJBs Performance can be affected by the fact that it accepts IIOP connections and it has to ensure transactional integrity JTS JBDC JNDI IIOP

that it accepts IIOP connections and it has to

15 EJB Container Inherently slow Name resolution is an expensive task EJBs are heavy JTS JBDC JNDI IIOP Database connections are also expensive Performance tuning is critical

16 Basic Administration

17 Administrative Console (AE) Details view Properties view Tree view Message view

18 Starting & Stopping Servers

19 Updating Existing Items

20 Adding New Items

21 Removing Items

22 Monitoring Tools

23 Customer (End-User) Experience End-To-End Latency Time WebSphere Application Server Instrumentation (class loader hooks) JVM Profiler IBM API (PMI) Application Server Log SMF 120 Records (mainframe) Legacy Systems CICS IMS Database Connection Pools Monitoring Tools

28 JVM Methods

29 JVM Memory Usage

31 What the Analyst are Saying.

32 Leading Analysis Findings. MQSeries Monitoring Magic Quadrant Source: GartnerGroup, June 2001

33 Source: Leading Analysis Findings.

34 Questions

35 Thank you for your participation For more information, go to: For a free whitepaper, go to : For a free 30-day monitor trial, go to: [email protected]

WebSphere Training Outline

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