[hibernate-issues] [Hibernate-JIRA] Created: (HHH-6414) CPU spinning, stuck on getResultList()

CPU spinning, stuck on getResultList() -------------------------------------- Key: HHH-6414 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6414 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.3.1 Environment: Hibernate Annotations 3.4.0.GA, Hibernate 3.3.1.GA, Hibernate Commons Annotations 3.1.0.GA, Hibernate EntityManager 3.4.0.GA, Seam 2.2.1.Final, JBoss 5.1.0.GA, Windows Server 2008 64bits, Microsoft SQL Server 10.00.4000, JDBC driver: Microsoft SQL Server 2005 JDBC Driver, version: 1.2.2828.100 Reporter: Anthony Ogier I've got a web application which is well tested (JMeter etc), and suddenly today, 2 of JBoss threads were stuck on a getResultList(), using 100% of the CPU. Here is the stack for each of the threads : {noformat} Thread: http-0.0.0.0-8080-2 : priority:5, demon:true, threadId:156, threadState:RUNNABLE java.util.HashMap.put(HashMap.java:374) org.hibernate.engine.StatefulPersistenceContext.addCollection(StatefulPersistenceContext.java:787) org.hibernate.engine.StatefulPersistenceContext.addUninitializedCollection(StatefulPersistenceContext.java:756) org.hibernate.type.CollectionType.getCollection(CollectionType.java:642) org.hibernate.type.CollectionType.resolveKey(CollectionType.java:430) org.hibernate.type.CollectionType.resolve(CollectionType.java:424) org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:139) org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:877) org.hibernate.loader.Loader.doQuery(Loader.java:752) org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259) org.hibernate.loader.Loader.doList(Loader.java:2228) org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2125) org.hibernate.loader.Loader.list(Loader.java:2120) org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:401) org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:361) org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:196) org.hibernate.impl.SessionImpl.list(SessionImpl.java:1148) org.hibernate.impl.QueryImpl.list(QueryImpl.java:102) org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:67) {noformat} I've seen some similar problems here [JGRP-525|https://issues.jboss.org/browse/JGRP-525] and here [JBMESSAGING-1676|https://issues.jboss.org/browse/JBMESSAGING-1676] and they are talking about concurrency ... -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira