IBM Business Process Manager V8.5 Performance Tuning And . - IBM Redbooks

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IBM WebSphere Front coverIBM Business ProcessManager V8.5 PerformanceTuning and Best PracticesLearn valuable tips for tuningGet the latest recommendationsSee example settingsMike CollinsZi Hui DuanAndreas FriedBen HoflichChris RichardsonTorsten Wilmsibm.com/redbooks

International Technical Support OrganizationIBM Business Process Manager V8.5 PerformanceTuning and Best PracticesFebruary 2015SG24-8216-00

Note: Before using this information and the product it supports, read the information in“Notices” on page ix.First Edition (February 2015)This edition applies to Version 8.5.5 of IBM Business Process Manager and Version 8.5.5 of IBMBusiness Monitor. Copyright International Business Machines Corporation 2015. All rights reserved.Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADPSchedule Contract with IBM Corp.

ContentsNotices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ixTrademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xIBM Redbooks promotions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiPreface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiiiAuthors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xivNow you can become a published author, too! . . . . . . . . . . . . . . . . . . . . . . . xviiComments welcome. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviiStay connected to IBM Redbooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviiChapter 1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 Products covered in this publication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.2 Publication structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Chapter 2. Architecture best practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.1 Top tuning and deployment guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.2 Modeling and developing applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.2.1 Common best practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.2.2 Process Designer architecture best practices . . . . . . . . . . . . . . . . . . . 92.2.3 Integration Designer best practices. . . . . . . . . . . . . . . . . . . . . . . . . . 132.3 Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162.3.1 Deploy appropriate hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172.3.2 Deploy local modules in the same server . . . . . . . . . . . . . . . . . . . . . 182.3.3 Best practices for Deployment Environments . . . . . . . . . . . . . . . . . . 182.3.4 Evaluate service providers and external interfaces. . . . . . . . . . . . . . 192.4 Client environments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.4.1 Optimize the topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.4.2 Use a high-performing browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232.4.3 Enable browser caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232.4.4 Physical location of servers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232.4.5 Use modern desktop hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232.5 Large business objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242.5.1 Factors affecting large business object size processing . . . . . . . . . . 242.5.2 Large object design patterns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252.5.3 Data management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262.6 Use 64-bit JVMs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272.7 Business Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272.7.1 Event processing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Copyright IBM Corp. 2015. All rights reserved.iii

2.7.2 Dashboard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282.7.3 Database server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282.7.4 Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Chapter 3. Development best practices . . . . . . . . . . . . . . . . . . . . . . . . . . . 293.1 BPMN business process authoring best practices . . . . . . . . . . . . . . . . . . 303.1.1 Clear variables in exposed human services . . . . . . . . . . . . . . . . . . . 303.1.2 Do not use multi-instance loops in system lane or batch activities . . 313.1.3 Use conditional joins only when necessary. . . . . . . . . . . . . . . . . . . . 323.1.4 Follow guidelines for error handling . . . . . . . . . . . . . . . . . . . . . . . . . 323.1.5 Use sequential system lane activities efficiently . . . . . . . . . . . . . . . . 333.1.6 Ensure the Process Center is properly tuned and managed . . . . . . 343.1.7 Use fast connection for Process Designer and Process Center . . . . 343.1.8 Prevent WSDL validation from causing slow web serviceintegration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353.2 Case authoring best practices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353.2.1 Use required and automatically started case activities . . . . . . . . . . . 363.2.2 Use case folder properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363.3 Integration Designer best practices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363.3.1 Use share-by-reference libraries where possible . . . . . . . . . . . . . . . 363.3.2 Ensure content in Toolkits is needed for multiple applications . . . . . 373.3.3 Advanced Content Deployment considerations . . . . . . . . . . . . . . . . 373.3.4 Business object parsing mode considerations . . . . . . . . . . . . . . . . . 393.3.5 Service Component Architecture considerations . . . . . . . . . . . . . . . 473.3.6 Business Process Execution Language business processconsiderations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 483.3.7 Human task considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493.3.8 Business process and human tasks client considerations . . . . . . . . 503.3.9 Transactional considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 513.3.10 Invocation style considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533.3.11 Large object considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 563.3.12 Mediation Flow Component considerations . . . . . . . . . . . . . . . . . . 573.4 Browser environment considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 593.5 WebSphere InterChange Server migration considerations . . . . . . . . . . . . 60Chapter 4. Performance tuning and configuration. . . . . . . . . . . . . . . . . . . 634.1 Tuning checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 644.2 Common tuning parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664.2.1 Tracing and logging flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664.2.2 Java memory management tuning parameters. . . . . . . . . . . . . . . . . 674.2.3 Message-driven bean ActivationSpec . . . . . . . . . . . . . . . . . . . . . . . . 684.2.4 Process Engine navigation thread pools . . . . . . . . . . . . . . . . . . . . . . 694.2.5 Java Message Service connection pool sizes. . . . . . . . . . . . . . . . . . 69ivIBM Business Process Manager V8.5 Performance Tuning and Best Practices

4.2.6 Java Database Connectivity data source parameters. . . . . . . . . . . . 704.2.7 Tuning the Virtual Member Manager LDAP cache . . . . . . . . . . . . . . 714.2.8 Messaging engine properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 734.2.9 Run production servers in production mode . . . . . . . . . . . . . . . . . . . 734.3 Process Portal tuning and usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 734.3.1 Use a high-performing browser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 744.3.2 Enable browser caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 744.3.3 Locate the Process Portal physically close to the Process Server . . 744.3.4 Use the WORK tab to refresh the Task List . . . . . . . . . . . . . . . . . . . 744.3.5 Use modern desktop hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 744.3.6 Disable or uninstall add-ins or extensions. . . . . . . . . . . . . . . . . . . . . 754.3.7 Process Portal Dashboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 754.4 Business Processing Modeling Notation business process tuning . . . . . . 764.4.1 How to Change Configuration Settings for BPMN Processing . . . . . 764.4.2 Tune the Event Manager. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 764.4.3 Tune Participant Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 804.4.4 Use fast disk subsystem for recovery logs and Lucene Task Searchindexes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 814.4.5 Remove unnecessary snapshots from the Process Server . . . . . . . 814.4.6 Disable notifications and automatic task list refreshes if they are notrequired. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 814.4.7 Tune cache parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 834.5 Process Center tuning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 844.6 Advanced tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 854.6.1 Trace and monitor considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . 854.6.2 Tune for large objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 864.6.3 Tune for maximum concurrency . . . . . . . . . . . . . . . . . . . . . . . . . . . . 864.6.4 Clustered topology tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 904.6.5 Web services tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 914.6.6 Tune Human Workflow for Business Space . . . . . . . . . . . . . . . . . . . 924.6.7 Set AIX threading parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 934.7 Tune for Business Process Execution Language business processes . . . 944.7.1 Tune Work Manager-based navigation for business processes . . . . 944.7.2 Tune the business process container for Java Message Servicenavigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 954.7.3 Tune task list and process list queries . . . . . . . . . . . . . . . . . . . . . . . 964.7.4 Tune Business Process Choreographer API calls . . . . . . . . . . . . . . 964.7.5 Tune intermediate components for concurrency . . . . . . . . . . . . . . . . 974.8 Mediation flow component tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 974.8.1 Tune the database if using persistent messaging . . . . . . . . . . . . . . . 974.8.2 Configure Service Registry and Repository cache timeout . . . . . . . . 984.9 Business Monitor tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 984.9.1 Configure Java heap sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98Contentsv

4.9.2 Configuring Common Event Infrastructure . . . . . . . . . . . . . . . . . . . . 984.9.3 Configure message consumption batch size . . . . . . . . . . . . . . . . . . 994.9.4 Key performance indicator caching . . . . . . . . . . . . . . . . . . . . . . . . . . 994.9.5 Enable the Data Movement Service . . . . . . . . . . . . . . . . . . . . . . . . 1004.9.6 Dynamic KPI performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1004.9.7 Cognos tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1014.9.8 DB2 tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1014.10 Enable browser caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1014.10.1 Ensure browser cache is enabled in Internet Explorer . . . . . . . . . 1014.10.2 Ensure browser cache is enabled in Firefox . . . . . . . . . . . . . . . . . 1024.11 Tune the HTTP server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1034.12 Advanced Java heap tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1034.12.1 Monitoring garbage collection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1044.12.2 Set the heap size for most configurations . . . . . . . . . . . . . . . . . . . 1054.12.3 Set the heap size when running multiple JVMs on one system . . 1074.12.4 Reduce or increase heap size if OutOfMemory errors occur . . . . 1074.13 Tuning for WebSphere InterChange Server migrated workloads . . . . . 109Chapter 5. Database configuration, tuning, and best practices . . . . . . . 1115.1 Database tuning considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1125.1.1 General database tuning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1125.1.2 DB2 specific database tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1175.1.3 Oracle specific database tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . 1225.1.4 SQL Server specific database tuning . . . . . . . . . . . . . . . . . . . . . . . 1265.2 Tuning and recommendations for BPMN workload . . . . . . . . . . . . . . . . . 1305.2.1 Hot spot tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1305.2.2 Task list queries (saved searches) . . . . . . . . . . . . . . . . . . . . . . . . . 1315.2.3 Index considerations for Oracle . . . . . . . . . . . . . . . . . . . . . . . . . . . 1315.2.4 Index recommendation for the Performance Data Warehouse . . . . 1325.3 Tuning and recommendations for BPEL workload . . . . . . . . . . . . . . . . . 1325.3.1 Hot spot tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1325.3.2 Task and process list queries (query tables). . . . . . . . . . . . . . . . . . 1335.3.3 Drop unutilized indexes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1345.3.4 Use administrative task optimization . . . . . . . . . . . . . . . . . . . . . . . . 1345.3.5 Follow the operating guidelines for the BPM database . . . . . . . . . . 1345.3.6 Special tuning considerations for DB2 for Linux, UNIX,and Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1355.4 Suggestions for Business Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1375.4.1 Improving concurrency by setting registry variables . . . . . . . . . . . . 1375.4.2 Setting lock timeout properly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1375.4.3 Limiting event XML to 32 KB where possible . . . . . . . . . . . . . . . . . 1385.4.4 Using materialized query tables . . . . . . . . . . . . . . . . . . . . . . . . . . . 138viIBM Business Process Manager V8.5 Performance Tuning and Best Practices

Chapter 6. Migration considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1396.1 Migration overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1406.2 Instance migration considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1416.2.1 How instance migration works . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1416.2.2 Instance migration time estimation . . . . . . . . . . . . . . . . . . . . . . . . . 1426.2.3 Tuning for instance migration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1446.2.4 Recommendations for instance migration . . . . . . . . . . . . . . . . . . . . 1456.3 Version-to-version migration considerations . . . . . . . . . . . . . . . . . . . . . . 1476.3.1 Overview of version-version migration . . . . . . . . . . . . . . . . . . . . . . 1476.3.2 Time estimation for version-to-version migration . . . . . . . . . . . . . . 1506.3.3 Tuning considerations for version-to-version migration . . . . . . . . . 1526.3.4 Recommendations for version-to-version migration . . . . . . . . . . . . 154Chapter 7. IT monitoring and tuning for performance testing and managinga production environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1577.1 Performance and load testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1587.1.1 Create a performance evaluation checklist . . . . . . . . . . . . . . . . . . . 1587.1.2 Establish clear performance objectives. . . . . . . . . . . . . . . . . . . . . . 1597.1.3 Plan the performance evaluation early in the development cycle . . 1597.1.4 Ensure performance results are representative . . . . . . . . . . . . . . . 1607.2 IT monitoring and tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1617.2.1 Performance tuning methodology . . . . . . . . . . . . . . . . . . . . . . . . . . 1627.2.2 Information required to diagnose and resolveperformance issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1657.2.3 IT monitoring tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1667.2.4 Sample use cases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1717.3 Purging Business Process Manager data stores . . . . . . . . . . . . . . . . . . 1737.3.1 Repository data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1747.3.2 Process Instance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1757.3.3 Durable subscription messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 1767.3.4 Document attachments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1767.3.5 Dynamic groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1777.3.6 Shared business objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1777.3.7 Case properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1777.3.8 Performance Warehouse data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1777.3.9 Business Monitor data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177Chapter 8. Initial configuration settings . . . . . . . . . . . . . . . . . . . . . . . . . . 1798.1 Business Process Manager server settings . . . . . . . . . . . . . . . . . . . . . . 1808.1.1 Three-tiered: BPEL business processes with web servicesand remote DB2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1808.1.2 Three-tiered: Human Services with BPMN business processes . . . 1848.2 Mediation Flow Component settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185Contentsvii

8.2.18.2.28.2.38.2.4Mediation Flow Component common settings . . . . . . . . . . . . . . . . 185Mediation Flow Component settings for web services . . . . . . . . . . 185Mediation Flow Component settings for Java Message Service. . . 186DB2 settings for Java Message Service persistent . . . . . . . . . . . . . 186Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187IBM Redbooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187Online resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187How to get Redbooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188Help from IBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188viiiIBM Business Process Manager V8.5 Performance Tuning and Best Practices

NoticesThis information was developed for products and services offered in the U.S.A.IBM may not offer the products, services, or features discussed in this document in other countries. Consult yourlocal IBM representative for information on the products and services currently available in your area. Anyreference to an IBM product, program, or service is not intended to state or imply that only that IBM product,program, or service may be used. Any functionally equivalent product, program, or service that does not infringeany IBM intellectual property right may be used instead. However, it is the user's responsibility to evaluate andverify the operation of any non-IBM product, program, or service.IBM may have patents or pending patent applications covering subject matter described in this document. Thefurnishing of this document does not grant you any license to these patents. You can send license inquiries, inwriting, to:IBM Director of Licensing, IBM Corporation, North Castle Drive, Armonk, NY 10504-1785 U.S.A.The following paragraph does not apply to the United Kingdom or any other country where suchprovisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATIONPROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS ORIMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer ofexpress or implied warranties in certain transactions, therefore, this statement may not apply to you.This information could include technical inaccuracies or typographical errors. Changes are periodically made to theinformation herein; these changes will be incorporated in new editions of the publication. IBM may makeimprovements and/or changes in the product(s) and/or the program(s) described in this publication at any timewithout notice.Any references in this information to non-IBM websites are provided for convenience only and do not in anymanner serve as an endorsement of those websites. The materials at those websites are not part of the materialsfor this IBM product and use of those websites is at your own risk.IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring anyobligation to you.Any performance data contained herein was determined in a controlled environment. Therefore, the resultsobtained in other operating environments may vary significantly. Some measurements may have been made ondevelopment-level systems and there is no guarantee that these measurements will be the same on generallyavailable systems. Furthermore, some measurements may have been estimated through extrapolation. Actualresults may vary. Users of this document should verify the applicable data for their specific environment.Information concerning non-IBM products was obtained from the suppliers of those products, their publishedannouncements or other publicly available sources. IBM has not tested those products and cannot confirm theaccuracy of performance, compatibility or any other claims related to non-IBM products. Questions on thecapabilities of non-IBM products should be addressed to the suppliers of those products.This information contains examples of data and reports used in daily business operations. To illustrate them ascompletely as possible, the examples include the names of individuals, companies, brands, and products. All ofthese names are fictitious and any similarity to the names and addresses used by an actual business enterprise isentirely coincidental.COPYRIGHT LICENSE:This information contains sample application programs in source language, which illustrate programmingtechniques on various operating platforms. You may copy, modify, and distribute these sample programs in anyform without payment to IBM, for the purposes of developing, using, marketing or distributing application programsconforming to the application programming interface for the operating platform for which the sample programs arewritten. These examples have not been thoroughly tested under all conditions. IBM, therefore, cannot guarantee orimply reliability, serviceability, or function of these programs. You may copy, modify, and distribute these sampleprograms in any form without payment to IBM for the purposes of developing, using, marketing, or distributingapplication programs conforming to IBM's application programming interfaces. Copyright IBM Corp. 2015. All rights reserved.ix

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PrefaceThis IBM Redbooks publication provides performance tuning tips and bestpractices for IBM Business Process Manager (IBM BPM) V8.5.5 (all editions) andIBM Business Monitor V8.5.5. These products represent an integrateddevelopment and runtime environment based on a key set of service-orientedarchitecture (SOA) and business process management (BPM) technologies.Such technologies include Service Component Architecture (SCA), Service DataObject (SDO), Business Process Execution Language (BPEL) for web services,and Business Processing Modeling Notation (BPMN).Both IBM Business Process Manager and Business Monitor build on the corecapabilities of the IBM WebSphere Application Server infrastructure. As aresult, Business Process Manager solutions benefit from tuning, configuration,and best practices information for WebSphere Application Server and thecorresponding platform Java virtual machines (JVMs).This book targets a wide variety of groups, both within IBM (development,services, technical sales, and others) and customers. For customers who areeither considering or are in the early stages of implementing a solutionincorporating Business Process Manager and Business Monitor, this documentproves a useful reference. The book is useful both in terms of best practicesduring application development and deployment and as a reference for setup,tuning, and configuration information.This book talks about many issues that can influence performance of eachproduct and can serve as a guide for making rational first choices in terms ofconfiguration and performance settings. Similarly, customers who alreadyimplemented a solution with these products can use the information presentedhere to gain insight into how their overall integrated solution performance can beimproved.This IBM Redbooks publication replaces the existing IBM Redpaper publication IBM Business Process Manager V8.0 Performance Tuning and BestPractices, REDP-4935. Copyright IBM Corp. 2015. All rights reserved.xiii

AuthorsThis book was produced by a team of specialists from around the world workingat the International Technical Support Organization, Austin Center.Mike Collins is a Senior Software

Redbooks IBM Business Process Manager V8.5 Performance Tuning and Best Practices Mike Collins Zi Hui Duan. Andreas Fried Ben Hoflich Chris Richardson. IBM Business Process Manager V8.5 Performance Tuning and Best Practices IBM IBM Business Process Manager