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Sun Microsystems 820434310 manual Sun GlassFish Enterprise Server Documentation Set

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Preface

The Performance Tuning Guide describes how to get the best performance with Enterprise Server.

This preface contains information about and conventions for the entire Sun GlassFishTM Enterprise Server documentation set.

Sun GlassFish Enterprise Server Documentation Set

TABLE P–1Books in the Enterprise Server Documentation Set

Book Title	Description

Documentation Center	Enterprise Server documentation topics organized by task and subject.

Release Notes	Late-breaking information about the software and the documentation. Includes a
	comprehensive, table-based summary of the supported hardware, operating system, JavaTM
	Development Kit (JDKTM), and database drivers.

Quick Start Guide	How to get started with the Enterprise Server product.

Installation Guide	Installing the software and its components.

Application Deployment Guide	Deployment of applications and application components to the Enterprise Server. Includes
	information about deployment descriptors.

Developer’s Guide	Creating and implementing Java Platform, Enterprise Edition (Java EE platform) applications
	intended to run on the Enterprise Server that follow the open Java standards model for Java
	EE components and APIs. Includes information about developer tools, security, debugging,
	and creating lifecycle modules.

Java EE 5 Tutorial	Using Java EE 5 platform technologies and APIs to develop Java EE applications.

Java WSIT Tutorial	Developing web applications using the Web Service Interoperability Technologies (WSIT).
	Describes how, when, and why to use the WSIT technologies and the features and options
	that each technology supports.

Administration Guide	System administration for the Enterprise Server, including configuration, monitoring,
	security, resource management, and web services management.

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Sun Microsystems 820434310 manual Sun GlassFish Enterprise Server Documentation Set

Contents

Sun Microsystems, Inc Network Circle Santa Clara, CA Sun GlassFish Enterprise Server 2.1 Performance Tuning Guide090304@21990 Contents Tuning the Enterprise Server 100 Tuning for High-Availability Figures Page Tables Page Examples Page Table P-1Books in the Enterprise Server Documentation Set Sun GlassFish Enterprise Server Documentation SetTable P-2Default Paths and File Names Default Paths and File NamesSymbol Conventions Symbol ConventionsTypographic Conventions Table P-3Typographic ConventionsThird-Party Web Site References Documentation, Support, and TrainingSun Welcomes Your Comments Process Overview 1Performance Tuning RoadmapPerformance Tuning Roadmap Performance Tuning SequenceApplication Architecture Understanding Operational RequirementsClient-Side Presentation Security Requirements User Authentication and AuthorizationEncryption Hardware Resources Administration General Tuning Concepts2Factors That Affect Performance Capacity PlanningTo Determine Capacity User ExpectationsFurther Information Avoid Serialization and Deserialization Java Programming GuidelinesUse StringBuffer to Concatenate Strings Assign null to Variables That Are No Longer Needed String str = testing str = str + abcDeclare Methods as final Only If Necessary Declare Constants as static finalSynchronize Only When Necessary Java Server Page and Servlet TuningDeclare Method Arguments final Use DataHandlers for Soap AttachmentsGeneral Guidelines Suggested Coding PracticesAvoid Shared Modified Class Variables Http Session HandlingDisable Security Manager Configuration and Deployment TipsOptimize SSL Goals EJB Performance TuningMonitoring EJB Components Following is a sample of the monitoring output Monitoring Individual EJB Components Asadmin get -m monitorableObjectUse High Performance Beans General GuidelinesUse Caching Cache and Pool Tuning Tips Using Local and Remote InterfacesUse the Appropriate Stubs Remove Unneeded Stateful Session BeansPrefer Local Interfaces Using Pass-By-Reference SemanticsImproving Performance of EJB Transactions Configure Jdbc Resources as One-Phase Commit Resources Using Special TechniquesUse the Least Expensive Transaction Attribute Version ConsistencyEntity-mapping cmp-field-mapping When new.VCVERSIONNUMBER = old.VCVERSIONNUMBER Declare To enable request partitioningRequest Partitioning Cmp-field-mapping consistencyEntity Beans Tuning Tips for Specific Types of EJB ComponentsStateful Session Beans Stateless Session Beans Checkpoint only when neededRead-Only Entity Beans Refresh period Pre-fetching Container Managed Relationship CMR BeansOrderTable.OrderID = OrderLineTable.OrderLineOrderID Use Jdbc Directly Jdbc and Database AccessEncapsulate Business Logic in Entity EJB Components Close ConnectionsAsadmin set server.mdb-container.max-pool-size = value Tuning Message-Driven BeansUse getConnection Tune the Message-Driven Bean’s Pool SizeLimit Use of JMS Connections Cache Bean-Specific ResourcesDeployment Settings Tuning the Enterprise ServerDisable Auto-deployment Logger SettingsDisable Dynamic Application Reloading Use Pre-compiled JavaServer PagesGeneral Settings Web Container SettingsSession Properties Session Timeout Log LevelsManager Properties Reap Interval Disable Dynamic JSP ReloadingTuning the EJB Container EJB Container SettingsMonitoring the EJB Container Overview of EJB Pooling and CachingEJB Pool Settings Tuning the EJB PoolEJB Cache Settings Tuning the EJB CachePool and Cache Settings for Individual EJB Components Determining the best commit option Commit OptionTransaction Service Settings Java Message Service SettingsMonitoring the Transaction Service Viewing Monitoring InformationDisable Distributed Transaction Logging Tuning the Transaction ServiceAsadmin get -m serverInstance.transaction-service Monitoring the Http Service Http Service SettingsRecover On Restart Automatic Recovery Keypoint IntervalList --user admin --port EnabledProperty name=statsProfilingEnabled value=false DNS Cache Information dnsCaching DNS Entries HitRatioLimit DNS Lookups to Asynchronous NameLookupsKeep Alive keep-alive File Cache Information file-cacheAccess Log Tuning the Http ServiceConnection Queue Request ProcessingThread Count Request TimeoutInitial Thread Count Buffer Length Keep AliveMax Connections Http Protocol DNS Lookup EnabledHttp File Cache Time OutHash Init Size Max Files CountMax Age Small/Medium File Size and File Size LimitNetwork Address Tuning Http Listener SettingsAcceptor Threads Overview ORB SettingsHow a Client Connects to the ORB Monitoring the ORB3Tunable ORB Settings Tuning the ORBConnection Statistics Thread PoolsORB Thread Pool Parameters Tunable ORB ParametersClient ORB Properties Using multiple connectionsControlling connections between client and server ORB Examining Iiop Messages Thread Pool SizingLoad Balancing Improving ORB Performance with Java Serialization Tuning Thread Pools Unix /Linux only Thread Pool SettingsTo Enable Java Serialization Using JSG for Application ClientsTuning Jdbc Connection Pools Jdbc Connection Pool SettingsResources Monitoring Jdbc Connection PoolsTimeout Settings Pool Size Settings4Connection Pool Sizing Connection Validation Settings Isolation Level SettingsTransaction Support Connector Connection Pool SettingsTestpool Page Java Virtual Machine Settings Tuning the Java Runtime SystemManaging Memory and Garbage Collection Tuning the Garbage CollectorTo use the CMS collector Choosing the Garbage Collection AlgorithmAdditional Information Tracing Garbage Collection Other Garbage Collector SettingsGuidelines for Java Heap Sizing Tuning the Java Heap1Maximum Address Space Per Process Xmsvalue Xmxvalue Heap Tuning ParametersRebasing DLLs on Windows Example 4-1Heap Configuration on SolarisSurvivor Ratio Sizing To rebase the Application Server’s DLLs Enter this command rebase -b 0x6000000 *.dllFor more information on tuning the JVM, see Page Processors Server ScalingDisk Space MemoryNetworking Tuning Parameters Ndd -get /dev/tcp tcpconnhash Sizing the Connection Hash TableNetstat -nP tcpwc -l File Descriptor Setting Linux ConfigurationFile Descriptors on IP Stack Settings on Tuning for Solaris onFile Descriptors IP Stack SettingsTuning for Linux platforms Soft Nofile 65535 Hard Virtual MemorySession required /lib/security/pamlimits.so TCP/IP Settings Disk I/O SettingsTo tune the TCP/IP settings Network InterfaceTuning Operating System and TCP Settings Tuning UltraSPARC T1-Based Systems2Tuning 64-bit Systems for Performance Benchmarking Network Configuration Disk ConfigurationStart Options 106 Disk Use Tuning HadbCalculating Hadb Data Device Size Hadbm set TotalDatadeviceSizePerNode Tuning Data Device SizePlacing Hadb files on Physical Disks Memory AllocationBeware last flush/fputs took too long Vmstat -SDataBufferPoolSize PerformanceNodeNo TotalSize FreeSize Usage 512 504 LogBufferSize Tuning DataBufferPoolSizeHadbm set DataBufferPoolSize InternalLogbufferSize Tuning LogBufferSizeHadbm resourceinfo --logbuf Node No Avail Free SizeNumberOfLocks Tuning InternalLogbufferSizeHadbm resourceinfo --nilogbuf Hadbm set InternalLogbufferSizeCalculating the number of locks Tuning NumberOfLocksSummary Jdbc connection pool timeouts TimeoutsLoad Balancer timeouts Node No Avail Free Waits 50000Operating System Configuration Tuning the Enterprise Server for High-AvailabilityHadb timeouts No space left on deviceWeb-method Tuning Session Persistence FrequencyTime-based Session Size Session Persistence ScopeSession Modified-sessionCheckpointing Stateful Session Beans Configuring the Jdbc Connection PoolEnabling the Health Checker Configuring the Load BalancerTuning for High-Availability 121 122 Index Index 125 Monitoring transaction service Session timeout 128