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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 NamesSymbol Conventions Symbol ConventionsTypographic Conventions Table P-3Typographic ConventionsDocumentation, Support, and Training Third-Party Web Site ReferencesSun Welcomes Your Comments 1Performance Tuning Roadmap Process OverviewPerformance Tuning Sequence Performance Tuning RoadmapUnderstanding Operational Requirements Application ArchitectureClient-Side Presentation User Authentication and Authorization Security RequirementsEncryption Hardware Resources General Tuning Concepts AdministrationCapacity Planning 2Factors That Affect PerformanceUser Expectations To Determine CapacityFurther Information Java Programming Guidelines Avoid Serialization and DeserializationUse StringBuffer to Concatenate Strings String str = testing str = str + abc Assign null to Variables That Are No Longer NeededDeclare Methods as final Only If Necessary Declare Constants as static finalJava Server Page and Servlet Tuning Synchronize Only When NecessaryDeclare Method Arguments final Use DataHandlers for Soap AttachmentsSuggested Coding Practices General GuidelinesAvoid Shared Modified Class Variables Http Session HandlingConfiguration and Deployment Tips Disable Security ManagerOptimize SSL EJB Performance Tuning GoalsMonitoring EJB Components Following is a sample of the monitoring output Asadmin get -m monitorableObject Monitoring Individual EJB ComponentsGeneral Guidelines Use High Performance BeansUse Caching Using Local and Remote Interfaces Cache and Pool Tuning TipsUse the Appropriate Stubs Remove Unneeded Stateful Session BeansUsing Pass-By-Reference Semantics Prefer Local InterfacesImproving Performance of EJB Transactions Using Special Techniques Configure Jdbc Resources as One-Phase Commit ResourcesUse the Least Expensive Transaction Attribute Version ConsistencyEntity-mapping cmp-field-mapping To enable request partitioning When new.VCVERSIONNUMBER = old.VCVERSIONNUMBER DeclareRequest Partitioning Cmp-field-mapping consistencyTuning Tips for Specific Types of EJB Components Entity BeansStateful Session Beans Checkpoint only when needed Stateless Session BeansRead-Only Entity Beans Pre-fetching Container Managed Relationship CMR Beans Refresh periodOrderTable.OrderID = OrderLineTable.OrderLineOrderID Jdbc and Database Access Use Jdbc DirectlyEncapsulate Business Logic in Entity EJB Components Close ConnectionsTuning Message-Driven Beans Asadmin set server.mdb-container.max-pool-size = valueUse getConnection Tune the Message-Driven Bean’s Pool SizeCache Bean-Specific Resources Limit Use of JMS ConnectionsTuning the Enterprise Server Deployment SettingsLogger Settings Disable Auto-deploymentDisable Dynamic Application Reloading Use Pre-compiled JavaServer PagesWeb Container Settings General SettingsSession Properties Session Timeout Log LevelsDisable Dynamic JSP Reloading Manager Properties Reap IntervalEJB Container Settings Tuning the EJB ContainerMonitoring 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 optionJava Message Service Settings Transaction Service SettingsMonitoring the Transaction Service Viewing Monitoring InformationTuning the Transaction Service Disable Distributed Transaction LoggingAsadmin get -m serverInstance.transaction-service Http Service Settings Monitoring the Http ServiceRecover On Restart Automatic Recovery Keypoint IntervalEnabled List --user admin --portProperty name=statsProfilingEnabled value=false DNS Cache Information dnsHitRatio Caching DNS EntriesLimit DNS Lookups to Asynchronous NameLookupsFile Cache Information file-cache Keep Alive keep-aliveTuning the Http Service Access LogConnection Queue Request ProcessingRequest Timeout Thread CountInitial Thread Count Keep Alive Buffer LengthMax Connections DNS Lookup Enabled Http ProtocolHttp File Cache Time OutMax Files Count Hash Init SizeMax Age Small/Medium File Size and File Size LimitTuning Http Listener Settings Network AddressAcceptor Threads ORB Settings OverviewHow a Client Connects to the ORB Monitoring the ORBTuning the ORB 3Tunable ORB SettingsConnection Statistics Thread PoolsTunable ORB Parameters ORB Thread Pool ParametersUsing multiple connections Client ORB PropertiesControlling connections between client and server ORB Thread Pool Sizing Examining Iiop MessagesLoad Balancing Improving ORB Performance with Java Serialization Thread Pool Settings Tuning Thread Pools Unix /Linux onlyTo Enable Java Serialization Using JSG for Application ClientsJdbc Connection Pool Settings Tuning Jdbc Connection PoolsResources Monitoring Jdbc Connection PoolsPool Size Settings Timeout 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 CollectionChoosing the Garbage Collection Algorithm To use the CMS collectorAdditional Information Other Garbage Collector Settings Tracing Garbage CollectionTuning the Java Heap Guidelines for Java Heap Sizing1Maximum Address Space Per Process Heap Tuning Parameters Xmsvalue XmxvalueExample 4-1Heap Configuration on Solaris Rebasing DLLs on WindowsSurvivor 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 ProcessorsMemory Disk SpaceNetworking Tuning Parameters Sizing the Connection Hash Table Ndd -get /dev/tcp tcpconnhashNetstat -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 Virtual Memory Soft Nofile 65535 HardSession required /lib/security/pamlimits.so Disk I/O Settings TCP/IP SettingsTo tune the TCP/IP settings Network InterfaceTuning UltraSPARC T1-Based Systems Tuning Operating System and TCP Settings2Tuning 64-bit Systems for Performance Benchmarking Disk Configuration Network ConfigurationStart Options 106 Tuning Hadb Disk UseCalculating Hadb Data Device Size Tuning Data Device Size Hadbm set TotalDatadeviceSizePerNodeMemory Allocation Placing Hadb files on Physical DisksBeware last flush/fputs took too long Vmstat -SPerformance DataBufferPoolSizeNodeNo TotalSize FreeSize Usage 512 504 Tuning DataBufferPoolSize LogBufferSizeHadbm set DataBufferPoolSize Tuning LogBufferSize InternalLogbufferSizeHadbm resourceinfo --logbuf Node No Avail Free SizeTuning InternalLogbufferSize NumberOfLocksHadbm resourceinfo --nilogbuf Hadbm set InternalLogbufferSizeTuning NumberOfLocks Calculating the number of locksSummary Timeouts Jdbc connection pool timeoutsLoad Balancer timeouts Node No Avail Free Waits 50000Tuning the Enterprise Server for High-Availability Operating System ConfigurationHadb timeouts No space left on deviceTuning Session Persistence Frequency Web-methodTime-based Session Persistence Scope Session SizeSession 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