Error: Cannot fetch folder content from repository

Question

Hi everyone,

I am getting server error, when try to open one of the folders in the server Repository

Could you advise what can cause it?

yelena_kro · Answer

@BalazsBarany, thank you for your reply. Our PostgreSQL version is 9.6. We also did pg_dump and it finished successfully, with no errors, so seems it is not a table issue... Also unfortunately, when I try to delete that dataset, it gives me the same error... Any other suggestions?

BalazsBaranyRM · Answer

Hi,

thank you for the log message. The root cause seems to be the PostgreSQL error message:

Caused by: org.postgresql.util.PSQLException: ERROR: invalid memory alloc request size 1444220430

I'm a PostgreSQL user myself, but never saw this message. Some googling indicates two possible reasons:

1. If you have an older PostgreSQL version, the memory settings need to be updated.

2. If that's not a problem (recent PostgreSQL like 9.4 or later), a table might be corrupted. Please do a pg_dump of the RapidMiner Server database. This will read all tables and create a copy of them (a good idea anyway). If it gives a similar error, then you know that there's a problem with a table.

Some hints on how to solve this:

https://confluence.atlassian.com/jirakb/invalid-memory-alloc-request-size-440107132.html

But it might be easier to just delete the example set from the repository so the table gets dropped.

I don't know of a limit in Server, but 1.7 GB sounds like a lot.

Regards,

Balázs

yelena_kro · Answer

Hi Marco,

below is the server log fragment. Could you take a look?

Also I think there is one data file which causing the issue - the size of file is ~ 1.7 Gb, and when I try to open it in the server web-interface, it couldn't return metadata and returns 500 error. But I have that file on my local machine with no issues. I stored that file to other directories on the server and have the same error for these dir now. Is there any server parameter that limits the max file size?

11:25:55,848 WARN  [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-/0.0.0.0:8080-29) SQL Error: 0, SQLState: XX000
11:25:55,848 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http-/0.0.0.0:8080-29) ERROR: invalid memory alloc request size 1444220430
11:25:55,849 WARN  [org.hibernate.engine.loading.internal.LoadContexts] (http-/0.0.0.0:8080-29) HHH000100: Fail-safe cleanup (collections) : org.hibernate.engine.loading.internal.CollectionLoadContext@64843f9e<rs=org.postgresql.jdbc.PgResultSet@729c4955>
11:25:55,849 WARN  [org.hibernate.engine.loading.internal.CollectionLoadContext] (http-/0.0.0.0:8080-29) HHH000160: On CollectionLoadContext#cleanup, localLoadingCollectionKeys contained [1] entries
11:25:55,849 ERROR [org.jboss.as.ejb3.invocation] (http-/0.0.0.0:8080-29) JBAS014134: EJB Invocation failed on component RepositoryEJBImpl for method public abstract de.rapidanalytics.entity.Version de.rapidanalytics.ejb.RepositoryEJB.getVersion(int,int) throws de.rapidanalytics.entity.RepositoryException: javax.ejb.EJBException: org.hibernate.exception.GenericJDBCException: could not initialize a collection: [de.rapidanalytics.entity.DataEntry.history#661805]
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInOurTx(CMTTxInterceptor.java:191) [jboss-as-ejb3-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:282) [jboss-as-ejb3-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:345) [jboss-as-ejb3-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:243) [jboss-as-ejb3-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.invocationmetrics.WaitTimeInterceptor.processInvocation(WaitTimeInterceptor.java:43) [jboss-as-ejb3-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64) [jboss-as-ejb3-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59) [jboss-as-ejb3-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:55) [jboss-as-ejb3-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:185) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:182) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:73) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at de.rapidanalytics.ejb.RepositoryEJB$$$view1.getVersion(Unknown Source) [rapidminer-server-ejb.jar:]
	at de.rapidanalytics.web.service.RepositoryService.makeEntry(RepositoryService.java:259)
	at de.rapidanalytics.web.service.RepositoryService.getFolderContents(RepositoryService.java:67)
	at sun.reflect.GeneratedMethodAccessor455.invoke(Unknown Source) [:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_121]
	at org.jboss.as.ee.component.ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptor.java:52) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.webservices.deployers.WSComponentInstanceAssociationInterceptor.processInvocation(WSComponentInstanceAssociationInterceptor.java:49)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:185) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.as.webservices.invocation.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:129)
	at org.jboss.wsf.stack.cxf.JBossWSInvoker.performInvocation(JBossWSInvoker.java:175)
	at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:104)
	at org.apache.cxf.jaxws.AbstractJAXWSMethodInvoker.invoke(AbstractJAXWSMethodInvoker.java:237)
	at org.apache.cxf.jaxws.JAXWSMethodInvoker.invoke(JAXWSMethodInvoker.java:69)
	at org.jboss.wsf.stack.cxf.JBossWSInvoker.invoke(JBossWSInvoker.java:146)
	at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:58)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [rt.jar:1.8.0_121]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_121]
	at org.apache.cxf.workqueue.SynchronousExecutor.execute(SynchronousExecutor.java:37)
	at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:107)
	at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:272)
	at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
	at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:241)
	at org.jboss.wsf.stack.cxf.RequestHandlerImpl.handleHttpRequest(RequestHandlerImpl.java:97)
	at org.jboss.wsf.stack.cxf.transport.ServletHelper.callRequestHandler(ServletHelper.java:131)
	at org.jboss.wsf.stack.cxf.CXFServletExt.invoke(CXFServletExt.java:88)
	at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:286)
	at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:206)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.2.Final-redhat-1.jar:1.0.2.Final-redhat-1]
	at org.jboss.wsf.stack.cxf.CXFServletExt.service(CXFServletExt.java:136)
	at org.jboss.wsf.spi.deployment.WSFServlet.service(WSFServlet.java:140) [jbossws-spi-2.3.1.Final-redhat-1.jar:2.3.1.Final-redhat-1]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.2.Final-redhat-1.jar:1.0.2.Final-redhat-1]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
	at de.rapidanalytics.web.filter.IE8CompatibilityFilter.doFilter(IE8CompatibilityFilter.java:40)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
	at de.rapidanalytics.web.filter.LicenseCheckFilter.doFilter(LicenseCheckFilter.java:56)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:154) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:201) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) [spring-security-web-3.2.4.RELEASE.jar:3.2.4.RELEASE]
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343) [spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE]
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260) [spring-web-3.2.8.RELEASE.jar:3.2.8.RELEASE]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
	at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176)
	at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
	at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
	at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:394)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:231)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149)
	at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:150)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:854)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:653)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926)
	at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_121]
Caused by: org.hibernate.exception.GenericJDBCException: could not initialize a collection: [de.rapidanalytics.entity.DataEntry.history#661805]
	at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:124) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.loader.Loader.loadCollection(Loader.java:2269) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:65) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:674) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.event.internal.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:86) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.internal.SessionImpl.initializeCollection(SessionImpl.java:1774) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.collection.internal.AbstractPersistentCollection$4.doWork(AbstractPersistentCollection.java:552) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:234) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:548) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:126) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.collection.internal.AbstractPersistentCollection$1.doWork(AbstractPersistentCollection.java:155) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.collection.internal.AbstractPersistentCollection$1.doWork(AbstractPersistentCollection.java:140) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:234) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.collection.internal.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:139) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.collection.internal.PersistentBag.isEmpty(PersistentBag.java:249) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at de.rapidanalytics.entity.DataEntry.getLatestRevision(DataEntry.java:108) [rapidminer-server-ejb.jar:]
	at de.rapidanalytics.entity.DataEntry.getRevision(DataEntry.java:90) [rapidminer-server-ejb.jar:]
	at de.rapidanalytics.ejb.RepositoryEJBImpl.getVersion(RepositoryEJBImpl.java:985) [rapidminer-server-ejb.jar:]
	at sun.reflect.GeneratedMethodAccessor410.invoke(Unknown Source) [:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_121]
	at org.jboss.as.ee.component.ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptor.java:52) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.invocationmetrics.ExecutionTimeInterceptor.processInvocation(ExecutionTimeInterceptor.java:43) [jboss-as-ejb3-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.jpa.interceptor.SBInvocationInterceptor.processInvocation(SBInvocationInterceptor.java:47) [jboss-as-jpa-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [jboss-as-ee-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.pool.PooledInstanceInterceptor.processInvocation(PooledInstanceInterceptor.java:51) [jboss-as-ejb3-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:280) [jboss-as-ejb3-7.5.0.Final-redhat-15.jar:7.5.0.Final-redhat-15]
	... 119 more
Caused by: org.postgresql.util.PSQLException: ERROR: invalid memory alloc request size 1444220430
	at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2477) [postgresql-9.4-1201-jdbc4.jar:9.4]
	at org.postgresql.core.v3.QueryExecutorImpl.receiveFastpathResult(QueryExecutorImpl.java:757) [postgresql-9.4-1201-jdbc4.jar:9.4]
	at org.postgresql.core.v3.QueryExecutorImpl.fastpathCall(QueryExecutorImpl.java:549) [postgresql-9.4-1201-jdbc4.jar:9.4]
	at org.postgresql.fastpath.Fastpath.fastpath(Fastpath.java:101) [postgresql-9.4-1201-jdbc4.jar:9.4]
	at org.postgresql.fastpath.Fastpath.fastpath(Fastpath.java:142) [postgresql-9.4-1201-jdbc4.jar:9.4]
	at org.postgresql.fastpath.Fastpath.getData(Fastpath.java:221) [postgresql-9.4-1201-jdbc4.jar:9.4]
	at org.postgresql.largeobject.LargeObject.read(LargeObject.java:194) [postgresql-9.4-1201-jdbc4.jar:9.4]
	at org.postgresql.jdbc.AbstractBlobClob.getBytes(AbstractBlobClob.java:110)
	at org.hibernate.type.ByteArrayBlobType.get(ByteArrayBlobType.java:114) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.type.AbstractLobType.nullSafeGet(AbstractLobType.java:79) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.type.AbstractType.hydrate(AbstractType.java:106) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:2924) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1695) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1627) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.loader.Loader.getRow(Loader.java:1509) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:719) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.loader.Loader.processResultSet(Loader.java:949) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.loader.Loader.doQuery(Loader.java:917) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:348) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:318) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	at org.hibernate.loader.Loader.loadCollection(Loader.java:2262) [hibernate-core-4.2.16.Final-redhat-1.jar:4.2.16.Final-redhat-1]
	... 158 more