Hello,
I have a Java web application using Hibernate to connect to a PostgreSQL
backend. I am seeing the below stack trace during processing of a set
of data consisting of around 1000 objects; for a 200 object set I don't
see the exception.
I believe the salient point is the Out Of Memory bit - marked below by
*****'s
The fact that this exception occurs during a call to
org.postgresql.util.PSQLException.parseServerError () seems disturbing too.
* the JVM or servlet container might be out of memory, however the db is
on a different machine than the server so this doesn't seem likely
* Postgres might be out of memory. How would I check for this?
Subsequent requests go through just fine, as do any requests I make
directly using psql.
* something Else is happening
Any advice on how to attack this issue would be much appreciated!
Rachel McConnell
WARN [ SystemErrorInterceptor ] - java.util.NoSuchElementException
java.util.NoSuchElementException
at java.util.AbstractList$Itr.next(AbstractList.java: 426)
at java.util.Collections$6.nextElement(Collections.ja va:2479)
at
com.enginegreen.denali.interceptor.SystemErrorInte rceptor.intercept(SystemErrorInterceptor.java:89)
at
com.opensymphony.xwork.DefaultActionInvocation.inv oke(DefaultActionInvocation.java:169)
at
com.opensymphony.xwork.interceptor.TimerIntercepto r.intercept(TimerInterceptor.java:62)
at
com.opensymphony.xwork.DefaultActionInvocation.inv oke(DefaultActionInvocation.java:169)
at
com.opensymphony.xwork.DefaultActionProxy.execute( DefaultActionProxy.java:116)
at
com.opensymphony.webwork.dispatcher.ServletDispatc her.serviceAction(ServletDispatcher.java:182)
at
com.opensymphony.webwork.dispatcher.ServletDispatc her.service(ServletDispatcher.java:162)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:103)
at
com.caucho.server.http.FilterChainServlet.doFilter (FilterChainServlet.java:96)
at
com.enginegreen.denali.chrome.filter.ChromeFilter. doFilter(ChromeFilter.java:57)
at
com.caucho.server.http.FilterChainFilter.doFilter( FilterChainFilter.java:88)
at
com.enginegreen.denali.interceptor.HibernateFilter .doFilter(HibernateFilter.java:42)
at
com.caucho.server.http.FilterChainFilter.doFilter( FilterChainFilter.java:88)
at
com.enginegreen.denali.action.DenaliFilter.doFilte r(DenaliFilter.java:28)
at
com.caucho.server.http.FilterChainFilter.doFilter( FilterChainFilter.java:88)
at com.caucho.server.http.Invocation.service(Invocati on.java:315)
at
com.caucho.server.http.CacheInvocation.service(Cac heInvocation.java:135)
at
com.caucho.server.http.RunnerRequest.handleRequest (RunnerRequest.java:346)
at
com.caucho.server.http.RunnerRequest.handleConnect ion(RunnerRequest.java:274)
at com.caucho.server.TcpConnection.run(TcpConnection. java:139)
at java.lang.Thread.run(Thread.java:534)
WARN [ SystemErrorInterceptor ] -
com.enginegreen.denali.persistence.PersistenceExce ption:
net.sf.hibernate.JDBCException: could not initialize collection:
[com.enginegreen.ledger.model.InvoiceSummary.orderS ummarySet#78828]
at
com.enginegreen.ledger.invoice.impl.BillingClerkIm pl.renderInvoicesAsPDF(BillingClerkImpl.java:429)
at
com.enginegreen.denali.domain.billing.BillingManag erImpl.finalizeNextBillingPeriod(BillingManagerImp l.java:248)
at
com.enginegreen.denali.domain.billing.SecureBillin gManager.finalizeNextBillingPeriod(SecureBillingMa nager.java:96)
at
com.enginegreen.denali.action.billing.GenerateInvo icesAction.doExecute(GenerateInvoicesAction.java:1 21)
at
com.enginegreen.denali.action.WorkflowActionSuppor t.execute(WorkflowActionSupport.java:65)
at
com.opensymphony.xwork.DefaultActionInvocation.inv oke(DefaultActionInvocation.java:172)
at
com.enginegreen.denali.interceptor.ActionSourceInt erceptor.intercept(ActionSourceInterceptor.java:50 )
at
com.opensymphony.xwork.DefaultActionInvocation.inv oke(DefaultActionInvocation.java:169)
at
com.enginegreen.denali.interceptor.NullInterceptor .intercept(NullInterceptor.java:25)
at
com.opensymphony.xwork.DefaultActionInvocation.inv oke(DefaultActionInvocation.java:169)
at
com.opensymphony.xwork.interceptor.AroundIntercept or.intercept(AroundInterceptor.java:37)
at
com.opensymphony.xwork.DefaultActionInvocation.inv oke(DefaultActionInvocation.java:169)
at
com.opensymphony.xwork.interceptor.AroundIntercept or.intercept(AroundInterceptor.java:37)
at
com.opensymphony.xwork.DefaultActionInvocation.inv oke(DefaultActionInvocation.java:169)
at
com.opensymphony.xwork.interceptor.AroundIntercept or.intercept(AroundInterceptor.java:37)
at
com.opensymphony.xwork.DefaultActionInvocation.inv oke(DefaultActionInvocation.java:169)
at
com.opensymphony.xwork.interceptor.AroundIntercept or.intercept(AroundInterceptor.java:37)
at
com.opensymphony.xwork.DefaultActionInvocation.inv oke(DefaultActionInvocation.java:169)
at
com.opensymphony.xwork.interceptor.AroundIntercept or.intercept(AroundInterceptor.java:37)
at
com.opensymphony.xwork.DefaultActionInvocation.inv oke(DefaultActionInvocation.java:169)
at
com.enginegreen.denali.interceptor.security.AdminS ecurityInterceptor.intercept(AdminSecurityIntercep tor.java:31)
at
com.opensymphony.xwork.DefaultActionInvocation.inv oke(DefaultActionInvocation.java:169)
at
com.enginegreen.denali.interceptor.SystemErrorInte rceptor.intercept(SystemErrorInterceptor.java:47)
at
com.opensymphony.xwork.DefaultActionInvocation.inv oke(DefaultActionInvocation.java:169)
at
com.opensymphony.xwork.interceptor.TimerIntercepto r.intercept(TimerInterceptor.java:62)
at
com.opensymphony.xwork.DefaultActionInvocation.inv oke(DefaultActionInvocation.java:169)
at
com.opensymphony.xwork.DefaultActionProxy.execute( DefaultActionProxy.java:116)
at
com.opensymphony.webwork.dispatcher.ServletDispatc her.serviceAction(ServletDispatcher.java:182)
at
com.opensymphony.webwork.dispatcher.ServletDispatc her.service(ServletDispatcher.java:162)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:103)
at
com.caucho.server.http.FilterChainServlet.doFilter (FilterChainServlet.java:96)
at
com.enginegreen.denali.chrome.filter.ChromeFilter. doFilter(ChromeFilter.java:57)
at
com.caucho.server.http.FilterChainFilter.doFilter( FilterChainFilter.java:88)
at
com.enginegreen.denali.interceptor.HibernateFilter .doFilter(HibernateFilter.java:42)
at
com.caucho.server.http.FilterChainFilter.doFilter( FilterChainFilter.java:88)
at
com.enginegreen.denali.action.DenaliFilter.doFilte r(DenaliFilter.java:28)
at
com.caucho.server.http.FilterChainFilter.doFilter( FilterChainFilter.java:88)
at com.caucho.server.http.Invocation.service(Invocati on.java:315)
at
com.caucho.server.http.CacheInvocation.service(Cac heInvocation.java:135)
at
com.caucho.server.http.RunnerRequest.handleRequest (RunnerRequest.java:346)
at
com.caucho.server.http.RunnerRequest.handleConnect ion(RunnerRequest.java:274)
at com.caucho.server.TcpConnection.run(TcpConnection. java:139)
at java.lang.Thread.run(Thread.java:534)
Caused by: net.sf.hibernate.JDBCException: could not initialize
collection:
[com.enginegreen.ledger.model.InvoiceSummary.orderS ummarySet#78828]
at
net.sf.hibernate.collection.AbstractCollectionPers ister.initialize(AbstractCollectionPersister.java: 287)
at
net.sf.hibernate.impl.SessionImpl.initializeCollec tion(SessionImpl.java:3226)
at
net.sf.hibernate.collection.PersistentCollection.f orceInitialization(PersistentCollection.java:340)
at
net.sf.hibernate.impl.SessionImpl.initializeNonLaz yCollections(SessionImpl.java:3089)
at
net.sf.hibernate.loader.Loader.doQueryAndInitializ eNonLazyCollections(Loader.java:138)
at net.sf.hibernate.loader.Loader.doList(Loader.java: 950)
at net.sf.hibernate.loader.Loader.list(Loader.java:94 1)
at
net.sf.hibernate.hql.QueryTranslator.list(QueryTra nslator.java:834)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl .java:1512)
at net.sf.hibernate.impl.QueryImpl.list(QueryImpl.jav a:39)
at
com.enginegreen.ledger.invoice.impl.BillingClerkIm pl.renderInvoicesAsPDF(BillingClerkImpl.java:414)
... 42 more
******
Caused by: org.postgresql.util.PSQLException: ERROR: out of memory
at
org.postgresql.util.PSQLException.parseServerError (PSQLException.java:139)
at
org.postgresql.core.QueryExecutor.executeV3(QueryE xecutor.java:154)
at
org.postgresql.core.QueryExecutor.execute(QueryExe cutor.java:101)
at org.postgresql.core.QueryExecutor.execute(QueryExe cutor.java:43)
at
org.postgresql.jdbc1.AbstractJdbc1Statement.execut e(AbstractJdbc1Statement.java:515)
at
org.postgresql.jdbc2.AbstractJdbc2Statement.execut e(AbstractJdbc2Statement.java:50)
at
org.postgresql.jdbc1.AbstractJdbc1Statement.execut eQuery(AbstractJdbc1Statement.java:231)
at
net.sf.hibernate.impl.BatcherImpl.getResultSet(Bat cherImpl.java:87)
at net.sf.hibernate.loader.Loader.getResultSet(Loader .java:795)
at net.sf.hibernate.loader.Loader.doQuery(Loader.java :189)
at
net.sf.hibernate.loader.Loader.doQueryAndInitializ eNonLazyCollections(Loader.java:133)
at net.sf.hibernate.loader.Loader.loadCollection(Load er.java:910)
at net.sf.hibernate.loader.Loader.loadCollection(Load er.java:885)
at
net.sf.hibernate.loader.OneToManyLoader.initialize (OneToManyLoader.java:80)
at
net.sf.hibernate.collection.AbstractCollectionPers ister.initialize(AbstractCollectionPersister.java: 284)
... 52 more
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