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Internal Structure of AS JAVA There are 3 logical levels • SAP Java Enterprise Runtime - provides fundamental functions of the runtime environment, such as class loading, cluster communication, management of configuration data, and so on • J2EE components - contain interfaces, libraries, and services • Applications Layer - relates to the applications that are deployed and run in SAP NetWeaver Application Server Java. 18 October 2010
Services in the AS JAVA • The services that SAP NetWeaver AS Java provides for processing requests are defined and configured using “Services”. Service components can access & utilize functions of the runtime through the Framework API. They are the most important of J2EE components Service Description Security Provider Administration of users and groups and authorization administration. Controls Monitoring Service Log Configurator Service Log Viewer Service access to resources or applications deployed in SAP NetWeaver AS Java. Allows access to information about the current system status. Provides general and statistical information, among other things, about the nodes in the cluster, memory utilization, performance, applications, and user connections. Manages the configuration of the logging and tracing mechanism of SAP NetWeaver AS Java. Provides an integrated log viewer for displaying log and trace information. Deploy Service Manages the deployment of Java applications. EJB Container Service Manages all Enterprise Java Beans (session beans, entity beans, and message-driven beans), which are executed in the EJB Container of SAP NetWeaver AS Java. HTTP Provider Analyzes the URL of inbound HTTP requests, forwards the requests to the correct module of SAP NetWeaver AS Java for processing, and returns the responses to the client. 18 October 2010
Page 1 and 2: SAP BASIS Introductory Training Pro
Page 3 and 4: AS JAVA Architecture & Processes 18
Page 5 and 6: SAP AS JAVA Instance Central Instan
Page 7 and 8: Summary of AS JAVA Processes The fo
Page 9 and 10: AS JAVA Architecture • In AS Java
Page 11 and 12: Key architecture principles of Dual
Page 13 and 14: Details on request processing • T
Page 15 and 16: Transaction Processing in AS JAVA 1
Page 17 and 18: Details on Managers & Services •
Page 19 and 20: Open SQL for JAVA • If the Java p
Page 21 and 22: The JAVA Instance Concept • SAP N
Page 23 and 24: Request Processing by the dispatche
Page 25: Message & Enqueue Service • The m
Page 29 and 30: Startup & Shutdown Of AS JAVA Insta
Page 31 and 32: Sequence of Startup • The SAP Sys
Page 33 and 34: Stopping AS JAVA in UNIX • The st
Page 35 and 36: Starting/Stopping a pure AS JAVA in
Page 37 and 38: Process Information 18 October 2010
Page 39 and 40: SMICM Details • In the case of SA
Page 41 and 42: Start/Stop in UNIX • For SAP syst
Page 43 and 44: Details on the Framework • SAP pr
Page 45 and 46: Location in Windows 18 October 2010
Page 47 and 48: JCMON Tool • The JCmon tool can b
Page 49 and 50: Logs & Trace Files in AS JAVA 18 Oc
Page 51 and 52: Administration & Configuration Tool
Page 53 and 54: Features of the Config Tool • The
Page 55 and 56: Visual Administrator • With the V
Page 57 and 58: Memory Management in AS JAVA • Th
Page 59 and 60: Explanation of the Term “Generati
Page 61 and 62: Exercise EXERCISE • Login to the

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