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Re: [eclipselink-users] Slow load time
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I do have the eclipselink.jar file as a EAR utility jar. It is not in the
individual war's.
mobrien wrote:
>
> Khaskett,
> Hi, just my small observation, but it looks like you may be
> including the EclipseLink jar classes in your WAR. Since we will search
> for entities in all the classes/* files, this may be the cause of your
> slowdown because you are doing a predeploy() on 100's of extra classes
> unrelated to your application.
>
>
>
>>
>> It does this for all files in the persistence.xml even some eclipselink
>> files
>> \LineCPP\WebContent\WEB-INF\classes\org\eclipse\persistence\internal\expressions\QueryKeyExpression.class
>>
>
>
> I would recommend that you install EclipseLink as a shared library
> that would be available to all your web projects at the higher websphere
> server classpath level as a library.
> See the following screen capture for WebLogic 6.1 that details how
> to do this on the admin console by creating a shared library to
> $server\lib\eclipselink.jar, depending on how high you want it, you may
> need to deploy it to alternatively to $server\lib\ext\eclipselink.jar
>
> http://wiki.eclipse.org/EclipseLink/Examples/JPA/WebSphere_Web_Tutorial#EclipseLink_JAR_location
>
> If you require a separate eclipselink.jar to be in the specific war
> classpath of each application then I would move it up to a lib directory
> off of WebContent outside of the JPA search path.
>
> hope this helps, thank you
> /michael
> www.eclipselink.org
>
>
> khaskett wrote:
>> I did start it up in debug mode and was able to get a stack trace of what
>> was
>> going on at that time looks like this -
>> Daemon Thread [server.startup : 0] (Suspended)
>> WinNTFileSystem.getBooleanAttributes(File) line: not available [native
>> method]
>> File.exists() line: 731 [local variables unavailable]
>> SinglePathClassProvider$1.run() line: 301 [local variables unavailable]
>> AccessController.doPrivileged(PrivilegedAction) line: 63
>> SinglePathClassProvider.getClassBytesFromDir(String,
>> ClassProviderListener)
>> line: 292
>> SinglePathClassProvider.getClassBytes(String, ClassProviderListener)
>> line:
>> 283
>> CompoundClassLoader.findClass(String, boolean) line: 547
>> CompoundClassLoader.loadClass(String, boolean) line: 422
>> CompoundClassLoader(ClassLoader).loadClass(String) line: 597
>> Class<T>.forNameImpl(String, boolean, ClassLoader) line: not available
>> [native method]
>> Class<T>.forName(String, boolean, ClassLoader) line: 163
>> PrivilegedAccessHelper.getClassForName(String, boolean, ClassLoader)
>> line:
>> 86
>> XMLEntityMappings.getClassForName(String, ClassLoader) line: 138
>> XMLEntityMappings.getClassForName(String) line: 175
>>
>> XMLEntityMappings.initPersistenceUnitClasses(HashMap<String,EntityAccessor>,
>> HashMap<String,EmbeddableAccessor>) line: 433
>> MetadataProcessor.initPersistenceUnitClasses() line: 202
>> MetadataProcessor.processEntityMappings() line: 425
>> PersistenceUnitProcessor.processORMetadata(MetadataProcessor, boolean)
>> line: 299
>> EntityManagerSetupImpl.predeploy(PersistenceUnitInfo, Map) line: 838
>>
>> PersistenceProvider.createContainerEntityManagerFactory(PersistenceUnitInfo,
>> Map) line: 218
>> JPAPUnitInfo.getFactory(Context) line: 1191
>> JPAPxmlInfo.extractPersistenceUnits(JPAPXml, JPALooseConfig) line: 348
>> JPAScopeInfo.processPersistenceUnit(JPAPXml, JPALooseConfig) line: 140
>> JPAApplInfo.processModulePUs(DeployedModule) line: 169
>> JPAComponentImpl.startingDeployedModule(DeployedModule) line: 780
>> JPAComponentImpl.stateChanged(DeployedObjectEvent) line: 646
>> ApplicationMgrImpl.stateChanged(DeployedObjectEvent) line: 1226
>> DeployedApplicationImpl.fireDeployedObjectEvent(DeployedObjectEvent)
>> line:
>> 1148
>> DeployedWARModuleImpl(DeployedModuleImpl).setState(DeployedObjectEvent)
>> line: 214
>> DeployedWARModuleImpl(DeployedModuleImpl).start() line: 584
>> DeployedApplicationImpl.start() line: 832
>> ApplicationMgrImpl.startApplication(DeployedApplicationImpl) line: 921
>> ApplicationMgrImpl$AppInitializer.run() line: 2124
>> WsComponentImpl$_AsynchInitializer.run() line: 342
>> ThreadPool$Worker.run() line: 1473
>>
>> The odd thing about that is it is the process is looking for this file -
>> \LineCPP\WebContent\WEB-INF\classes\com\gmrc\jpa\domain\CpUserroleId.class
>>
>> But LineCPP is my WebProject
>> and the CpUserroleId.class is in my JPA project
>> \CpsJPA\bin\com\gmrc\jpa\domain\CpUserroleId.class
>>
>> It does this for all files in the persistence.xml even some eclipselink
>> files
>> \LineCPP\WebContent\WEB-INF\classes\org\eclipse\persistence\internal\expressions\QueryKeyExpression.class
>>
>> I have 9 different WebProjects and I think it searches through all of
>> them.
>>
>> Any ideas on whats going on here?
>>
>>
>> James Sutherland wrote:
>>
>>> Odd, it may not be this lines causing the hang though, it could be
>>> anything the occurs in between. Try using a Java profiler such as
>>> JProfiler to determine where the bottleneck is.
>>>
>>>
>>>
>>> khaskett wrote:
>>>
>>>> When I start up the server for the first time the load time is very
>>>> quick. But then any subsequent restarts the start time degrades
>>>> quickly.
>>>> It seems to hang for several minutes on these two lines -
>>>>
>>>> [4/15/09 15:23:04:921 CDT] 00000019 SystemOut O [EL Finer]:
>>>> 2009-04-15
>>>> 15:23:04.89--ServerSession(549331134)--Thread(Thread[server.startup :
>>>> 2,5,main])--Searching for default mapping file in
>>>> file:/C:/Projects/Grinnell/Source/Head/CpsJPA/bin/
>>>> [4/15/09 15:25:00:437 CDT] 00000019 SystemOut O [EL Finer]:
>>>> 2009-04-15
>>>> 15:25:00.437--ServerSession(549331134)--Thread(Thread[server.startup :
>>>> 2,5,main])--Searching for default mapping file in
>>>> file:/C:/Projects/Grinnell/Source/Head/CpsJPA/bin/
>>>>
>>>> In my application I have two seperate JPA utility projects one for DB2
>>>> and the other for SQL Server. The each have their own Mapping file
>>>> listed
>>>> in the persistence.xml
>>>> <mapping-file>META-INF/cps-orm.xml</mapping-file>
>>>> and
>>>> <mapping-file>META-INF/sql-orm.xml</mapping-file>
>>>>
>>>> Running on Websphere 6.1.0.23 with EJB3 Feature Pack installed.
>>>>
>>>> Anything I can do to fix this?
>>>>
>>>>
>>>
>>
>>
>
>
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