WebSphere Application Server V7.0: Concepts ... - IBM Redbooks

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11.2.1 What was in Feature Pack for V6.1 The Feature Pack for Web Services for WebSphere Application Server V6.1extended the capabilities of V6.1 to enable Web services messages to be sent asynchronously, reliably, and securely, focusing on interoperability with other vendors. It also provided support for the Java API for XML Web Services (JAX-WS) 2.0 programming model. The Feature Pack added support for the following features (also present in WebSphere Application Server V7.0): ► Web services standards – Web Services Reliable Messaging (WS-RM) 1.1 – Web Services Addressing (WS-Addressing) 1.0 – Web Services Secure Conversation (WS-SC) 1.0 – SOAP 1.2 – SOAP Message Transmission Optimization Mechanism (MTOM) 1.0 ► Standards-based programming models – Java API for XML Web Services (JAX-WS) 2.0 – Java Architecture for XML Binding (JAXB) 2.0 – SOAP with Attachments API for Java (SAAJ) 1.3 – Streaming API for XML (StAX) 1.0 11.2.2 Features added to WebSphere Application Server V7.0 In addition to the enhancements brought about by the Feature Pack for Web services, there are other major Web services enhancements in WebSphere Application Server V7.0: ► Web Services for Java Enterprise Edition (Java EE) 1.2 (JSR-109) specification is now supported. ► Support for JAX-WS 2.1, extending the functionality of JAX-WS 2.0 to provide support for the WS-Addressing in a standardized API. ► Added support for W3C (World Wide Web Consortium) SOAP over JMS (Java Message Service) 1.0 (submission draft) for JAX-WS. ► By default, HTTP chunking is used when sending MTOM (Message Transmission Optimization Mechanism) attachments, thus allowing for greater scalability and improved performance. This feature does not require the applications to be changed, but it can be disabled if desired. ► Added support for WS-Policy 1.5 and related specifications such as WS-SecurityPolicy 1.2. ► WS-Addressing is now based on JAX-WS. 360 WebSphere Application Server V7.0: Concepts, Planning, and Design
► Security has been enhanced with the adoption of OASIS (Organization for the Advancement of Structured Information Standards) WS-SecureConversation 1.2. ► Enterprise Java Bean (EJB) 3.0 components may now be exposed as JAX-WS Web services. ► The Integrated Solutions Console has been improved with enhanced support to policy sets, application bindings, and endpoints management. ► Enhanced Configuration Archive support for Web services specific metadata (policy sets, policy types, and bindings) has been added. 11.3 Important aspects in using Web services There are some business and technical aspects that need to be considered when deciding to use Web services. The following questions represent the types of strategic thinking that needs to happen if you want to provide or use Web services: ► Do you have business functionality that is common and can be shared? The typical reason to use a Web service is to save time and effort by reusing existing infrastructure. Over time, this enables the entire IT infrastructure of an enterprise to reduce redundancy and consist of mature, well-tested components. Does your application have this sort of functionality? Can you reduce the complexity of your application by using other Web services? ► Do you need a more consumable interface to existing exposed function? Web services can be used as an easier way to expose application programing interfaces (APIs) to consumers. Wrapping existing APIs in Web services provides a more friendly interface to them. ► What business functionality do you want to expose to external parties? You have the option to expose as much or as little of your application as you want. This can range from single business functions exposed as services to the entire application wrapped up as a single Web service. It largely depends on your business strategy. There are no technical constraints. Does the architecture of your application allow individual business functions to be exposed in this manner? Chapter 11. Web services 361
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WebSphere Application Server V7.0:
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Note: Before using this information
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2.2 Tivoli Directory Server . . . .
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5.1.3 Security . . . . . . . . . .
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7.9 WebSphere performance tools . .
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11.4 Web services architecture . .
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14.9.7 Java Command Language (JACL)
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xiv WebSphere Application Server V7
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Trademarks IBM, the IBM logo, and i
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xviii WebSphere Application Server
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Tze Puah is an Application Infrastr
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Become a published author Join us f
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1.1 Java Platform Enterprise Editio
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1.2 WebSphere Application Server ov
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1.2.2 Evolving Java application dev
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Runtime provisioning WebSphere Appl
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WebSphere Application Server suppor
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Installation Factory WebSphere Appl
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WebSphere Application Server for z/
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These features become more importan
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1.4 Supported hardware, platforms,
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Operating systems Versions Linux®
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1.4.5 Directory servers Databases V
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► Product binaries and source cod
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Some of the features of Rational Ap
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Groovy and PHP. It also includes ap
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2.1 Tivoli Access Manager IBM Tivol
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All communication between the Tivol
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LDAP is a fast and simple way of lo
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For WebSphere Application Server Ve
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WebSphere MQ applications can send
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► Technology Adapters These adapt
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The IBM WebSphere DataPower SOA App
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Client or Server Internet IP Firewa
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2.6 DB2 IBM DB2 is an open-standard
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2.7.1 Integration with WebSphere Ap
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50 WebSphere Application Server V7.
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3.1 WebSphere Application Server co
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Administration is greatly enhanced
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About Figure 3-2 : This figure only
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It is also possible to replicate se
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DMgr Node Deployment Manager Node A
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3.1.6 Deployment manager Local conf
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3.1.8 Job manager The administrativ
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Web server plug-ins A Web server ca
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SIP proxy The SIP proxy design is b
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3.1.11 Generic servers A generic se
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► Aligns WebSphere applications c
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3.2.1 Single cell configurations Yo
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Node Agent Application Server Deplo
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Node Agent V5.1 Application Server
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Administrative Agent WebSphere Appl
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Cluster workload management Workloa
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groups enables WebSphere Applicatio
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Mixed topologies Figure 3-23 shows
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3.4 Runtime processes In this secti
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Node Agent Application Server Deplo
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3.5.3 IBM HTTP Server as an unmanag
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4.1 Infrastructure planning This se
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4.2.1 Scalability Scalability, as u
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4.2.2 Caching 6. Reevaluate. Recogn
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- Consider regular maintenance. In
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4.2.6 Security Disaster recovery co
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► Plan for certificates and their
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4.3 Sizing the infrastructure After
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When using a service such as those
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4.5.4 Load factors ► Monitor reso
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4.5.5 Production system tuning This
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4.6 Planning for monitoring As most
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products, like the IBM Tivoli Compo
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4.7.3 Backup plan 4.7.4 Recovery pl
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5.1 Topology selection criteria 5.1
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Load balancing Use load balancing t
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5.1.3 Security 5.1.4 Maintainabilit
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Scaling Scaling represents the abil
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Both of these options are valid app
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- You will more likely have to call
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5.2 Terminology 5.2.1 Load balancer
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WebSphere Application Server Proxy
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WebSphere Application Server V7.0 s
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5.3.1 Stand-alone server topology T
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► Increased security by using a D
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User Outside World DMZ Internal Net
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Installation and configuration The
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The Web server plug-in distributes
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System D Perform the following step
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primary Load Balancer through heart
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5.3.4 Reverse proxy topology User R
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Installation and configuration: Edg
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System B Perform the following step
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System A 1. Copy the file targetTre
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Note: Each Load Balancer installati
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Disadvantages The major disadvantag
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5.3.6 Heterogeneous cell z/OS DMGR
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Disadvantages The disadvantages of
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Advantages This topology provides t
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The topology in Figure 5-11 shows a
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3. Create an application server pro
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Disadvantages There are no real dis
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This document does not describe the
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When you choose the platform or pla
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6.5 Naming conventions Naming conve
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Forwarding method Each of the avail
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The following examples outline the
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What is next? You can start the Web
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Assume that the application server
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6.8.2 Distributed server environmen
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Assume that the application server
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► Slip install Slip install means
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Deployment Manager . . . Deployment
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Installation factory The Installati
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Note: The IBM Update Installer for
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Profile types The types of profiles
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► Secure proxy profile A secure p
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Deployment manager profile options
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Typical settings Advanced options D
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Application server profile options
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Typical settings Advanced options Y
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Typical settings Advanced options D
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6.9.6 Naming convention The purpose
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If each application server will hos
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There are some specific considerati
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6.10 IBM Support Assistant IBM Supp
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7.1 What is new in V7.0 IBM WebSphe
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7.2.1 Scaling overview Note: In ord
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Note: IBM HTTP Server for z/OS offe
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7.3.2 System tuning To measure the
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For the DMZ secure proxy, there are
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Messaging connection pool When usin
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Workload management is a WebSphere
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For more details about Web server p
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7.5 High availability 7.5.1 Overvie
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7.5.4 Data availability In a WebSph
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7.5.6 Maintainability Software-base
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This time-out can be configured in
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High availability groups High avail
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7.6.1 Edge caching In this section
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7.6.3 Data caching Dynamic caching
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7.7 Session management 7.7.1 Overvi
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The following sections outline the
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Local sessions (non-persistent) If
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► Application Configuration at th
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7.9 WebSphere performance tools Whe
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Monitoring a system naturally chang
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for tuning and performance. The adv
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synthetic transactions or to track
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For more information about ARM, rev
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Planning item Plan for clustering:
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8.1 What is new in V7.0 The followi
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► Enterprise JavaBeans (EJB) thin
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Disciplines Business Modeling Requi
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► Support for WebSphere Applicati
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The WebSphere rapid deployment set
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To group and sort resources in the
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8.5.3 Subversion CVS has the follow
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8.6 Automated build process The maj
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8.8 Automated functional tests Auto
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Development environment Usually, ea
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The system test environment can als
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► Environment-specific This categ
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A lesser known, but better, approac
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Developers need to consider the fol
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► You can use the WebSphere Appli
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The included extensions to Ajax are
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Another good source of information
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Figure 13-2 Key SCA concepts ► Pr
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► SCA Web Services Binding V1.0 T
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14.1 WebSphere Application Server s
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14.1.3 Cell component—daemon WebS
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While WebSphere Application Server
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Cell Deployment Manager Control reg
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14.1.6 Workload management for WebS
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Request Platinum customer Request G
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Availability The concept of a separ
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Note: While the 31-bit mode can sti
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► MEMLIMIT setting in the JCL or
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14.4.3 HFS structure The HFS struct
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Cell01 Core Group Node01 Deployment
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14.5.4 XCF—alternative protocol o
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Member notification To notify the o
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14.6 z/OS Fast Response Cache Accel
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Perform the following steps to conf
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Note: By default the FRCA cache is
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14.6.4 Resource Access Control Faci
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The results of this can be as follo
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Note: If the request exceeds the sp
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garbage collection. The garbage col
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14.8.3 Function Modification Identi
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Note: For detailed information abou
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The set of tools is available for W
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14.9 System programmer consideratio
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Intelligent runtime provisioning Th
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Shared class cache This section con
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Because this is a JVM technique tha
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The REUSASID parameter is automatic
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14.10.1 Planning considerations Tab
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Various tools are available to ease
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15.1 Infrastructure migration consi
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15.1.1 Scripting migration Since We
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15.1.6 Mixed cell support To ease t
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Automated migration with mixed vers
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15.4 Messaging migration considerat
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15.7 WebSphere Application Server f
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MMT is intended for use by a system
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5. When you have successfully enter
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Example 15-1 Migration management c
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Tip: The BBOWMG3x job is long runni
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For more information about how to c
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Topology review Client Network (10.
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Advantages Disadvantages Sample top
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► In order to show the new securi
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Installing HTTP Servers (servers B
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Creating Job manager (server E) The
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d. On the Integrated Solutions Cons
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After clicking OK, we got the answe
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One WebSphere Application Server no
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Figure A-10 Additional parameters F
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Figure A-14 Job finished Summary We
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Online resources ► WebSphere Appl
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WebSphere Application Server V7.0:
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