[Solved] Deadlocks when adding files

[dranakan]

Hello,

An action is able to add some files in Alfresco. All works good with MySql but I have some problems using Ingres DB 9.2. Sometimes Ingres find Deadlocks.

The action try add add some files (it get some local PDF (in the alfresco temp), add some metadata and create in Alfresco). It can add 300 files in Alfresco, but sometimes the DB Ingres give a deadlock messages. It add 190 files and crash (sometimes after 100 files … it's not always different) . It appends 60% tests and only with lot of files (if I add 3 files in the method, all is ok).
The code is in a transaction and a rollback is done if problem appears.

Samples of method used during the process of adding files :

…try {            InputStream contentStream = new FileInputStream(file);            // Write the content of the NodeRef            ContentWriter writer = contentService.getWriter(nodeRef,                  ContentModel.PROP_CONTENT, true);            writer.setMimetype(mimetypeService.guessMimetype(file                  .getAbsolutePath()));            writer.setEncoding(ENCODING);            writer.putContent(contentStream); // Line 403             contentStream.close();            return true;         } catch (Exception e) {            logger.error("Error adding file.",   e);         }…‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

:arrow: The crash is on : writer.putContent(contentStream); Before doing this code above, I created the node with ( ChildAssociationRef association = nodeService.createNode(…) NodeRef nodeRef = association.getChildRef();, add some metadata (… nodeService.addProperties(node, contentProps);

Message gived by the DB

LOCALHOST_LOCALDOM::[53860             , 5841      ,  02050100]: Fri Aug  7 11:08:00 2009 E_DM9042_PAGE_DEADLOCK        Deadlock encountered locking page 4 for table fk_alf_usaged_n in database alfresco with mode 2. Resource held by session [5841 24f8100] Mode 3.LOCALHOST_LOCALDOM::[53860             , 5841      ,  02050100]: Fri Aug  7 11:08:00 2009 E_DM0042_DEADLOCK     Resource deadlock.LOCALHOST_LOCALDOM::[53860             , 5841      ,  02050100]: Fri Aug  7 11:08:00 2009 E_QE002A_DEADLOCK     Deadlock detected.‍‍‍‍‍

Message gived by Alfresco (generate by the DB)

11:08:01,198  ERROR [manageoffice.workers.NodeManager] Error adding file.org.alfresco.service.cmr.repository.ContentIOException: Failed to set content property on stream closure:   node: workspace://SpacesStore/52bac846-156c-481c-abd3-f393183cd8c1   property: {http://www.alfresco.org/model/content/1.0}content   writer: ContentAccessor[ contentUrl=store://2009/8/7/11/7/057ba825-6109-4dd0-8cda-e06214457ab6.bin, mimetype=application/pdf, size=31204, encoding=UTF-8, locale=fr_FR]        at org.alfresco.repo.content.RoutingContentService$WriteStreamListener.contentStreamClosed(RoutingContentService.java:626)        at org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel$1.execute(AbstractContentAccessor.java:357)        at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:320)        at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:246)        at org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel.fireChannelClosed(AbstractContentAccessor.java:367)        at org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel.implCloseChannel(AbstractContentAccessor.java:336)        at java.nio.channels.spi.AbstractInterruptibleChannel.close(AbstractInterruptibleChannel.java:97)        at java.nio.channels.Channels$1.close(Channels.java:138)        at java.io.FilterOutputStream.close(FilterOutputStream.java:143)        at org.springframework.util.FileCopyUtils.copy(FileCopyUtils.java:132)        at org.alfresco.repo.content.AbstractContentWriter.putContent(AbstractContentWriter.java:423)        at ch.custom.manageoffice.workers.NodeManager.addContentToFileFromFile(NodeManager.java:403)        at ch.custom.manageoffice.workers.NodeManager.createNode(NodeManager.java:215)        at ch.custom.manageoffice.workers.NodeManager.writeTree(NodeManager.java:693)        at ch.custom.manageoffice.workers.NodeManager.createDirectoriesIfNotExisted(NodeManager.java:750)        at ch.custom.manageoffice.workers.NodeManager.writeTree(NodeManager.java:661)        at ch.custom.manageoffice.workers.NodeManager.createDirectoriesIfNotExisted(NodeManager.java:750)        at ch.custom.manageoffice.workers.NodeManager.writeTree(NodeManager.java:616)        at ch.custom.manageoffice.actions.SplittPDFFromERP.moveFilesAndAddMeta(SplittPDFFromERP.java:335)        at ch.custom.manageoffice.actions.SplittPDFFromERP.access$0(SplittPDFFromERP.java:323)        at ch.custom.manageoffice.actions.SplittPDFFromERP$1.execute(SplittPDFFromERP.java:243)        at ch.custom.manageoffice.actions.SplittPDFFromERP$1.execute(SplittPDFFromERP.java:1)        at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:320)        at ch.custom.manageoffice.actions.SplittPDFFromERP.executeImpl(SplittPDFFromERP.java:232)        at org.alfresco.repo.action.executer.ActionExecuterAbstractBase.execute(ActionExecuterAbstractBase.java:127)        at org.alfresco.repo.action.ActionServiceImpl.directActionExecution(ActionServiceImpl.java:592)        at org.alfresco.repo.action.executer.CompositeActionExecuter.executeImpl(CompositeActionExecuter.java:72)        at org.alfresco.repo.action.executer.ActionExecuterAbstractBase.execute(ActionExecuterAbstractBase.java:127)        at org.alfresco.repo.action.ActionServiceImpl.directActionExecution(ActionServiceImpl.java:592)        at org.alfresco.repo.action.ActionServiceImpl.executeActionImpl(ActionServiceImpl.java:529)        at org.alfresco.repo.action.AsynchronousActionExecutionQueueImpl$ActionExecutionWrapper$1$1.execute(AsynchronousActionExecutionQueueImpl.java:369)        at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:320)        at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:227)        at org.alfresco.repo.action.AsynchronousActionExecutionQueueImpl$ActionExecutionWrapper$1.doWork(AsynchronousActionExecutionQueueImpl.java:378)        at org.alfresco.repo.security.authentication.AuthenticationUtil.runAs(AuthenticationUtil.java:437)        at org.alfresco.repo.action.AsynchronousActionExecutionQueueImpl$ActionExecutionWrapper.run(AsynchronousActionExecutionQueueImpl.java:381)        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)        at java.lang.Thread.run(Thread.java:619)Caused by: org.springframework.dao.CannotAcquireLockException: Could not execute JDBC batch update; nested exception is org.hibernate.exception.LockAcquisitionException: Could not execute JDBC batch update        at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:619)        at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412)        at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:377)        at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:338)        at org.alfresco.repo.node.db.hibernate.HibernateNodeDaoServiceImpl.getChildAssocs(HibernateNodeDaoServiceImpl.java:2014)        at sun.reflect.GeneratedMethodAccessor329.invoke(Unknown Source)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)        at java.lang.reflect.Method.invoke(Method.java:597)        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:296)        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:177)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144)        at org.alfresco.repo.transaction.TransactionalDaoInterceptor.invoke(TransactionalDaoInterceptor.java:68)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)        at org.alfresco.repo.domain.hibernate.DirtySessionMethodInterceptor.invoke(DirtySessionMethodInterceptor.java:381)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)        at $Proxy2.getChildAssocs(Unknown Source)        at org.alfresco.repo.node.db.DbNodeServiceImpl.getChildAssocs(DbNodeServiceImpl.java:1376)        at sun.reflect.GeneratedMethodAccessor158.invoke(Unknown Source)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)        at java.lang.reflect.Method.invoke(Method.java:597)        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:296)        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:177)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144)        at org.alfresco.repo.transaction.SingleEntryTransactionResourceInterceptor.invoke(SingleEntryTransactionResourceInterceptor.java:127)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)        at $Proxy7.getChildAssocs(Unknown Source)        at sun.reflect.GeneratedMethodAccessor158.invoke(Unknown Source)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)        at java.lang.reflect.Method.invoke(Method.java:597)        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:296)        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:177)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144)        at org.alfresco.repo.tenant.MultiTNodeServiceInterceptor.invoke(MultiTNodeServiceInterceptor.java:110)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)        at $Proxy7.getChildAssocs(Unknown Source)        at sun.reflect.GeneratedMethodAccessor158.invoke(Unknown Source)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)        at java.lang.reflect.Method.invoke(Method.java:597)        at org.alfresco.repo.service.StoreRedirectorProxyFactory$RedirectorInvocationHandler.invoke(StoreRedirectorProxyFactory.java:221)        at $Proxy8.getChildAssocs(Unknown Source)        at sun.reflect.GeneratedMethodAccessor158.invoke(Unknown Source)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)        at java.lang.reflect.Method.invoke(Method.java:597)        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:296)        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:177)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144)        at org.alfresco.repo.node.MLPropertyInterceptor.invoke(MLPropertyInterceptor.java:306)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)        at org.alfresco.repo.node.MLPropertyInterceptor.invoke(MLPropertyInterceptor.java:306)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)        at org.alfresco.repo.node.NodeRefPropertyMethodInterceptor.invoke(NodeRefPropertyMethodInterceptor.java:274)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)at org.alfresco.repo.node.NodeRefPropertyMethodInterceptor.invoke(NodeRefPropertyMethodInterceptor.java:274)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)        at $Proxy7.getChildAssocs(Unknown Source)        at org.alfresco.repo.rule.RuleServiceImpl.getSavedRuleFolderRef(RuleServiceImpl.java:229)        at org.alfresco.repo.rule.RuleServiceImpl.getRules(RuleServiceImpl.java:380)        at org.alfresco.repo.rule.RuleServiceImpl.getRules(RuleServiceImpl.java:348)        at org.alfresco.repo.rule.RuleServiceImpl.getInheritedRules(RuleServiceImpl.java:503)        at org.alfresco.repo.rule.RuleServiceImpl.getInheritedRules(RuleServiceImpl.java:494)        at org.alfresco.repo.rule.RuleServiceImpl.getInheritedRules(RuleServiceImpl.java:494)        at org.alfresco.repo.rule.RuleServiceImpl.getRules(RuleServiceImpl.java:363)        at org.alfresco.repo.rule.RuleTypeImpl.triggerRuleType(RuleTypeImpl.java:132)        at org.alfresco.repo.rule.ruletrigger.RuleTriggerAbstractBase.triggerRules(RuleTriggerAbstractBase.java:162)        at org.alfresco.repo.rule.ruletrigger.OnContentUpdateRuleTrigger.onContentUpdate(OnContentUpdateRuleTrigger.java:120)        at sun.reflect.GeneratedMethodAccessor446.invoke(Unknown Source)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)        at java.lang.reflect.Method.invoke(Method.java:597)        at org.alfresco.repo.policy.JavaBehaviour$JavaMethodInvocationHandler.invoke(JavaBehaviour.java:179)        at $Proxy40.onContentUpdate(Unknown Source)        at sun.reflect.GeneratedMethodAccessor445.invoke(Unknown Source)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)        at java.lang.reflect.Method.invoke(Method.java:597)        at org.alfresco.repo.policy.PolicyFactory$MultiHandler.invoke(PolicyFactory.java:306)        at org.alfresco.repo.policy.$Proxy185.onContentUpdate(Unknown Source)        at org.alfresco.repo.content.RoutingContentService.onUpdateProperties(RoutingContentService.java:281)        at sun.reflect.GeneratedMethodAccessor422.invoke(Unknown Source)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)        at java.lang.reflect.Method.invoke(Method.java:597)        at org.alfresco.repo.policy.JavaBehaviour$JavaMethodInvocationHandler.invoke(JavaBehaviour.java:179)        at $Proxy13.onUpdateProperties(Unknown Source)        at sun.reflect.GeneratedMethodAccessor283.invoke(Unknown Source)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)        at java.lang.reflect.Method.invoke(Method.java:597)        at org.alfresco.repo.policy.PolicyFactory$MultiHandler.invoke(PolicyFactory.java:306)        at org.alfresco.repo.policy.$Proxy164.onUpdateProperties(Unknown Source)        at org.alfresco.repo.node.AbstractNodeServiceImpl.invokeOnUpdateProperties(AbstractNodeServiceImpl.java:345)        at org.alfresco.repo.node.db.DbNodeServiceImpl.setProperty(DbNodeServiceImpl.java:1119)        at sun.reflect.GeneratedMethodAccessor286.invoke(Unknown Source)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)        at java.lang.reflect.Method.invoke(Method.java:597)        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:296)        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:177)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144)        at org.alfresco.repo.transaction.SingleEntryTransactionResourceInterceptor.invokeInternal(SingleEntryTransactionResourceInterceptor.java:169)        at org.alfresco.repo.transaction.SingleEntryTransactionResourceInterceptor.invoke(SingleEntryTransactionResourceInterceptor.java:138)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)        at $Proxy7.setProperty(Unknown Source) at $Proxy7.setProperty(Unknown Source)        at sun.reflect.GeneratedMethodAccessor286.invoke(Unknown Source)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)        at java.lang.reflect.Method.invoke(Method.java:597)        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:296)        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:177)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144)        at org.alfresco.repo.tenant.MultiTNodeServiceInterceptor.invoke(MultiTNodeServiceInterceptor.java:110)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)        at $Proxy7.setProperty(Unknown Source)        at sun.reflect.GeneratedMethodAccessor286.invoke(Unknown Source)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)        at java.lang.reflect.Method.invoke(Method.java:597)        at org.alfresco.repo.service.StoreRedirectorProxyFactory$RedirectorInvocationHandler.invoke(StoreRedirectorProxyFactory.java:221)        at $Proxy8.setProperty(Unknown Source)        at org.alfresco.repo.node.MLPropertyInterceptor.invoke(MLPropertyInterceptor.java:252)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)        at org.alfresco.repo.node.NodeRefPropertyMethodInterceptor.invoke(NodeRefPropertyMethodInterceptor.java:265)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)        at org.alfresco.repo.node.NodeRefPropertyMethodInterceptor.invoke(NodeRefPropertyMethodInterceptor.java:265)        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:166)        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)        at $Proxy7.setProperty(Unknown Source)        at org.alfresco.repo.content.RoutingContentService$WriteStreamListener.contentStreamClosed(RoutingContentService.java:606)        … 38 moreCaused by: org.hibernate.exception.LockAcquisitionException: Could not execute JDBC batch update        at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:82)        at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)        at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:253)        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:309)        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:182)        at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)        at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)        at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)        at sun.reflect.GeneratedMethodAccessor406.invoke(Unknown Source)        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)        at java.lang.reflect.Method.invoke(Method.java:597)        at org.springframework.orm.hibernate3.HibernateTemplate$CloseSuppressingInvocationHandler.invoke(HibernateTemplate.java:1202)        at $Proxy70.flush(Unknown Source)        at org.alfresco.repo.domain.hibernate.DirtySessionMethodInterceptor.setQueryFlushMode(DirtySessionMethodInterceptor.java:257)        at org.alfresco.repo.node.db.hibernate.HibernateNodeDaoServiceImpl$17.doInHibernate(HibernateNodeDaoServiceImpl.java:2007)        at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:372)        … 162 moreCaused by: java.sql.BatchUpdateException: Deadlock detected, your single or multi-query transaction has been aborted.        at com.ingres.gcf.jdbc.JdbcPrep.executeBatch(Unknown Source)        at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:294)        at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:48)        at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:246)        … 175 more‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Has someone an idea ?

Thanks

[kazirahul]

The code is in a transaction and a rollback is done if problem appears

[mrogers]

Do you know the "database isolation level" being used for ingress?

[dranakan]

Thanks for your reply mrogers,

The level specified in the config.dat of ingres is :

ii.localhost_localdomain.dbms.*.system_isolation: serializable‍‍

For the configuration of Ingres, I have used script configuration gived by Ingres : http://wiki.alfresco.com/wiki/Installing_Alfresco_Labs_3b_and_Ingres

[dranakan]

Hello,

The Ingres support saved me…

A few tables of the Alfresco schema have the Hash storage structure. You have to reporganize it from time to time (depends on the grow rate) to eliminate overflow pages. Such overflow page chains may cause your locking problems. You can reorganize a hash table by using the MODIFY command. Further information can be found in the Ingres documentation.

Using this command (often) to do the reorganisation of all tables :

su - ingresusermod alfresco‍‍‍‍

(Perhaps doing it just for tables with Hash, and after doing optimizedb and sysmod)
You need some space to do this…