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Sun Microsystems 820434310 manual

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Sun Microsystems 820434310 manual

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Sun GlassFish Enterprise Server 2.1 Performance Tuning Guide Sun Microsystems, Inc Network Circle Santa Clara, CA090304@21990 Contents Tuning the Enterprise Server 100 Tuning for High-Availability Figures Page Tables Page Examples Page Sun GlassFish Enterprise Server Documentation Set Table P-1Books in the Enterprise Server Documentation SetDefault Paths and File Names Table P-2Default Paths and File NamesTypographic Conventions Symbol ConventionsSymbol Conventions Table P-3Typographic ConventionsThird-Party Web Site References Documentation, Support, and TrainingSun Welcomes Your Comments 1Performance Tuning Roadmap Process OverviewPerformance Tuning Sequence Performance Tuning RoadmapUnderstanding Operational Requirements Application ArchitectureClient-Side Presentation Security Requirements User Authentication and AuthorizationEncryption Hardware Resources General Tuning Concepts AdministrationCapacity Planning 2Factors That Affect PerformanceUser Expectations To Determine CapacityFurther Information Avoid Serialization and Deserialization Java Programming GuidelinesUse StringBuffer to Concatenate Strings Declare Methods as final Only If Necessary String str = testing str = str + abcAssign null to Variables That Are No Longer Needed Declare Constants as static finalDeclare Method Arguments final Java Server Page and Servlet TuningSynchronize Only When Necessary Use DataHandlers for Soap AttachmentsAvoid Shared Modified Class Variables Suggested Coding PracticesGeneral Guidelines Http Session HandlingDisable Security Manager Configuration and Deployment TipsOptimize SSL Goals EJB Performance TuningMonitoring EJB Components Following is a sample of the monitoring output Asadmin get -m monitorableObject Monitoring Individual EJB ComponentsUse High Performance Beans General GuidelinesUse Caching Use the Appropriate Stubs Using Local and Remote InterfacesCache and Pool Tuning Tips Remove Unneeded Stateful Session BeansUsing Pass-By-Reference Semantics Prefer Local InterfacesImproving Performance of EJB Transactions Use the Least Expensive Transaction Attribute Using Special TechniquesConfigure Jdbc Resources as One-Phase Commit Resources Version ConsistencyEntity-mapping cmp-field-mapping Request Partitioning To enable request partitioningWhen new.VCVERSIONNUMBER = old.VCVERSIONNUMBER Declare 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 Pre-fetching Container Managed Relationship CMR Beans Refresh periodOrderTable.OrderID = OrderLineTable.OrderLineOrderID Encapsulate Business Logic in Entity EJB Components Jdbc and Database AccessUse Jdbc Directly Close ConnectionsUse getConnection Tuning Message-Driven BeansAsadmin set server.mdb-container.max-pool-size = value Tune the Message-Driven Bean’s Pool SizeCache Bean-Specific Resources Limit Use of JMS ConnectionsTuning the Enterprise Server Deployment SettingsDisable Dynamic Application Reloading Logger SettingsDisable Auto-deployment Use Pre-compiled JavaServer PagesSession Properties Session Timeout Web Container SettingsGeneral Settings Log LevelsDisable Dynamic JSP Reloading Manager Properties Reap IntervalMonitoring the EJB Container EJB Container SettingsTuning the EJB Container Overview of EJB Pooling and CachingTuning the EJB Pool EJB Pool SettingsTuning the EJB Cache EJB Cache SettingsPool and Cache Settings for Individual EJB Components Commit Option Determining the best commit optionMonitoring the Transaction Service Java Message Service SettingsTransaction Service Settings Viewing Monitoring InformationDisable Distributed Transaction Logging Tuning the Transaction ServiceAsadmin get -m serverInstance.transaction-service Recover On Restart Automatic Recovery Http Service SettingsMonitoring the Http Service Keypoint IntervalProperty name=statsProfilingEnabled value=false EnabledList --user admin --port DNS Cache Information dnsLimit DNS Lookups to Asynchronous HitRatioCaching DNS Entries NameLookupsFile Cache Information file-cache Keep Alive keep-aliveConnection Queue Tuning the Http ServiceAccess Log Request ProcessingThread Count Request TimeoutInitial Thread Count Buffer Length Keep AliveMax Connections Http File Cache DNS Lookup EnabledHttp Protocol Time OutMax Age Max Files CountHash Init Size Small/Medium File Size and File Size LimitNetwork Address Tuning Http Listener SettingsAcceptor Threads How a Client Connects to the ORB ORB SettingsOverview Monitoring the ORBConnection Statistics Tuning the ORB3Tunable ORB Settings Thread PoolsTunable ORB Parameters ORB Thread Pool 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 To Enable Java Serialization Thread Pool SettingsTuning Thread Pools Unix /Linux only Using JSG for Application ClientsResources Jdbc Connection Pool SettingsTuning Jdbc Connection Pools Monitoring Jdbc Connection PoolsTimeout Settings Pool Size Settings4Connection Pool Sizing Isolation Level Settings Connection Validation SettingsConnector Connection Pool Settings Transaction SupportTestpool Page Tuning the Java Runtime System Java Virtual Machine SettingsTuning the Garbage Collector Managing Memory and Garbage CollectionTo use the CMS collector Choosing the Garbage Collection AlgorithmAdditional Information Other Garbage Collector Settings Tracing Garbage CollectionGuidelines for Java Heap Sizing Tuning the Java Heap1Maximum Address Space Per Process Heap Tuning Parameters Xmsvalue XmxvalueRebasing DLLs on Windows Example 4-1Heap Configuration on SolarisSurvivor Ratio Sizing Enter this command rebase -b 0x6000000 *.dll To rebase the Application Server’s DLLsFor more information on tuning the JVM, see Page Server Scaling ProcessorsDisk Space MemoryNetworking Tuning Parameters Ndd -get /dev/tcp tcpconnhash Sizing the Connection Hash TableNetstat -nP tcpwc -l Linux Configuration File Descriptor SettingTuning for Solaris on File Descriptors on IP Stack Settings onIP Stack Settings File DescriptorsTuning for Linux platforms Soft Nofile 65535 Hard Virtual MemorySession required /lib/security/pamlimits.so To tune the TCP/IP settings Disk I/O SettingsTCP/IP Settings Network InterfaceTuning UltraSPARC T1-Based Systems Tuning Operating System and TCP Settings2Tuning 64-bit Systems for Performance Benchmarking Network Configuration Disk ConfigurationStart Options 106 Disk Use Tuning HadbCalculating Hadb Data Device Size Tuning Data Device Size Hadbm set TotalDatadeviceSizePerNodeBeware last flush/fputs took too long Memory AllocationPlacing Hadb files on Physical Disks Vmstat -SDataBufferPoolSize PerformanceNodeNo TotalSize FreeSize Usage 512 504 LogBufferSize Tuning DataBufferPoolSizeHadbm set DataBufferPoolSize Hadbm resourceinfo --logbuf Tuning LogBufferSizeInternalLogbufferSize Node No Avail Free SizeHadbm resourceinfo --nilogbuf Tuning InternalLogbufferSizeNumberOfLocks Hadbm set InternalLogbufferSizeCalculating the number of locks Tuning NumberOfLocksSummary Load Balancer timeouts TimeoutsJdbc connection pool timeouts Node No Avail Free Waits 50000Hadb timeouts Tuning the Enterprise Server for High-AvailabilityOperating System Configuration No space left on deviceWeb-method Tuning Session Persistence FrequencyTime-based Session Session Persistence ScopeSession Size Modified-sessionConfiguring the Jdbc Connection Pool Checkpointing Stateful Session BeansConfiguring the Load Balancer Enabling the Health CheckerTuning for High-Availability 121 122 Index Index 125 Monitoring transaction service Session timeout 128