WebLogic调优与监控(包含weblogic11g

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1、1WebLogicServer性能监控与调优Overview-1WebLogic的版本WebLogicServer8.1(Java1.4、J2EE1.3)WebLogicServer9.x(Java5、J2EE1.4)WebLogicServer10.0(Java5、JavaEE5)WebLogicServer10.3(Java6、JavaEE5)WebLogicServer11gR1(10.3.x)(Java6、JavaEE5)软件授权：自从oracle收购了bea之后，WebLogic的序列号全都开放了，没有必要再去进行破解了。2WebLogic主要使用的JVMSUNH

2、otSpotJVMBEAJRockitJVM不同的JVM，其可设置的参数和监控的工具将是不同，后面将分别介绍这两种JVM的设置。在Intel架构和windows平台上，建议使用JRockitJVM，这样可以带来更优的性能。3WebLogic实例主要设置内容启动参数设置主要是设置GC参数线程设置主要是设置线程的数量数据库连接池的设置主要是设置连接池的初始容量和最大容量4WebLogic8.1启动文件%DOMAIN_HOME%/startWebLogic.cmd设置实例的运行模式：开发模式/生产模式设置JAVA_HOME设置JAVA_VM：client/server/jrock

3、it设置MEM_ARGS%WL_HOME%commonbincommEnv.cmd设置所有实例都统一使用的参数5WebLogic9.2启动文件%WL_HOME%commonbincommEnv.cmd设置所有实例统一的运行参数%DOMAIN_HOME%binsetDomainEnv.cmd设置本实例的运行参数%DOMAIN_HOME%binstartWebLogic.cmd运行启动脚本67SunHotSpotHeap分布Heapisdividedbroadlyintothreeareas:Young(New)generationTenured(Old)g

4、enerationPermanent(Perm)generationYounggenerationisfurtherdividedinto:EdenSurvivorspaces(2)Xmx8TuningGCManually…Newself-tuningfeatureisnotavailablewhiletuningJVMspriortoversion1.5andmanualtuningisrequired.Thefollowingarethecommontuningparametersavailablewhiletuningthegarbagecollectionmanua

5、lly:Sizeofthetheoverallheap-Xms[n]-Xmx[n]Sizeofthegenerationsintheheap-XX:NewSize=n-XX:MaxNewSize=n-XX:NewRatio=n9…TuningGCManuallyCommontuningparameters(continued)Thesizeofthesurvivorspacesintheyounggeneration-XX:SurvivorRatio=nThesizeofthepermanentgeneration-XX:PermSize=n-XX:MaxPermSize=

6、nThethresholdforpromotionfromtheyounggenerationtotheoldgeneration-XX:MaxTenuringThreshold=nTuninginvolveseitheraseriesofexperimentswithaspecializedtool(or)goodjudgmenttodecidethatGCwasperformingwell.TuningSunHotSpotJVM-3810JRockitBenefitsWeblogicJRockitJVMisdesignedforserver-sideapplicatio

7、ns.Itemploysadaptiveoptimizationtosignificantlyimproveruntimeperformance.Ithasadaptivegarbagecollectionandheapmanagement.Itoffersfullsupportfor32and64bitJRockitonIntelEM64T/AMD64andcompatibles.JRockitalsosupportsSolaris/Sparcarchitecture.Itofferssupportforvery