beatuxedo编程简介

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1、BEATuxedo编程简介BEATUXEDO编程简介1一、BEATuxedo简介1二、BEATuxedo配置文件UBBCONFIG3三、BEATuxedo常见配置错误6四、BEATuxedo常用命令7五、常用BEATuxedo函数：8六、常见错误分析：18一、BEATuxedo简介关于UBBCONFIG文件的一些设置：ThecostincurredbyincreasingMAXACCESSERSisoneadditionalsemaphorepersiteperclientorserverprocess(accesser—seenotethatfollows).Thereisasmallfix

2、edsemaphoreoverheadforsystemprocessesinadditiontothataddedbytheMAXACCESSERSvalue.ThecostofincreasingMAXSERVERSandMAXSERVICESisasmallamountofsharedmemorythatiskeptforeachserver,service,andcliententry,respectively.Thegeneralideafortheseparametersistoallowforfuturegrowthoftheapplication.Itismoreimporta

3、nttoscrutinizeMAXACCESSERS.Note:Thesystemallocatesonesemaphoreforeachaccessslottothebulletinboard.Asemaphoreisalatchcircuitthatpreventsmorethanoneprocessfromaccessingthesamesharedmemoryinthebulletinboardatthesametime.ForBEATuxedopre-Release7.1(6.5orearlier),boththeMAXACCESSERSandMAXSERVERSparameters

4、foranapplicationplayapartintheuserlicensecheckingscheme.Specifically,amachineisnotallowedtobootifthenumberofMAXACCESSERSforthatmachine+thenumberofMAXACCESSERSforthemachine(ormachines)alreadyrunningintheapplicationisgreaterthanthenumberofMAXSERVERS+userlicensesfortheapplication.Thus,thetotalnumberofM

5、AXACCESSERSforanapplicationmustbelessthanorequaltothenumberofMAXSERVERS+userlicensesfortheapplication.FirstofAll———设置合理的操作系统核心参数！！#用tmunloadcf>generated.ubb可以得出目前配置得UBB文件所有得参数值（没有设置的有缺省值）#用tmloadcf–c或tmboot–c可以计算出当前UBB配置的Tuxedo启动最少要占用的系统IPC资源。Ipcsizing(minimum/Tvaluesonly)...FixedMinimumsPerProcesso

6、rSHMMIN:1SHMALL:1SEMMAP:SEMMNIVariableMinimumsPerProcessorSEMUME,ASHMMAXSEMMNU,**NodeSEMMNSSEMMSLSEMMSLSEMMNIMSGMNIMSGMAPSHMSEG------------------------------------------------KF_FENGM65860A+13774220Kwhere1<=A<=8.SEMMNSMaximumnumberofsemaphoresinthesystem.TheminimumrequirementforSEMMNSisMAXACCESSERS-

7、MAXWSCLIENTS+13SEMMNIMaximumnumberofactivesemaphoresetsSEMMSLMaximumnumberofsemaphorespersemaphoreset.SEMMNIandSEMMSLarecommonlychosensothattheirproductequalsSEMMNS.TheBEATuxedosystemdoesnotperformsem