[xwiki-users] Problem occured while trying to service a request

hi, I am trying to upgrade my XE 1.2.1 to XE 1.3.2 . When I tried to import the XAR file it shows the following . Why it is so? Can any one reply? A problem occured while trying to service your request. Please contact the support if this happens again. Detailed information: Error number 3232 in 3: Exception while saving attachment xwiki-enterprise-installer-windows-1.2.1.xar of document XWiki.Import Wrapped Exception: Could not execute JDBC batch update com.xpn.xwiki.XWikiException: Error number 3232 in 3: Exception while saving attachment xwiki-enterprise-installer-windows-1.2.1.xar of document XWiki.Import Wrapped Exception: Could not execute JDBC batch update at com.xpn.xwiki.store.XWikiHibernateAttachmentStore.saveAttachmentContent(XWikiHibernateAttachmentStore.java:99) at com.xpn.xwiki.doc.XWikiDocument.saveAttachmentContent(XWikiDocument.java:2517) at com.xpn.xwiki.doc.XWikiDocument.saveAttachmentContent(XWikiDocument.java:2499) at com.xpn.xwiki.web.UploadAction.action(UploadAction.java:129) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:197) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) at javax.servlet.http.HttpServlet.service(HttpServlet.java:616) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428) at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:830) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117) at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821) at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568) at org.mortbay.http.HttpContext.handle(HttpContext.java:1565) at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633) at org.mortbay.http.HttpContext.handle(HttpContext.java:1517) at org.mortbay.http.HttpServer.service(HttpServer.java:954) at org.mortbay.http.HttpConnection.service(HttpConnection.java:816) at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:983) at org.mortbay.http.HttpConnection.handle(HttpConnection.java:833) at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244) at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357) at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534) Wrapped Exception: java.sql.BatchUpdateException: Packet for query is too large (1458818 > 1048576). You can change this value on the server by setting the max_allowed_packet' variable. at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1404) at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:294) 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) at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:92) at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:87) at org.hibernate.jdbc.AbstractBatcher.prepareBatchStatement(AbstractBatcher.java:222) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2224) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2660) at org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:56) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:250) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:234) at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:141) 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 org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338) at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106) at com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java:783) at com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java:754) at com.xpn.xwiki.store.XWikiHibernateAttachmentStore.saveAttachmentContent(XWikiHibernateAttachmentStore.java:94) at com.xpn.xwiki.doc.XWikiDocument.saveAttachmentContent(XWikiDocument.java:2517) at com.xpn.xwiki.doc.XWikiDocument.saveAttachmentContent(XWikiDocument.java:2499) at com.xpn.xwiki.web.UploadAction.action(UploadAction.java:129) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:197) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) at javax.servlet.http.HttpServlet.service(HttpServlet.java:616) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428) at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:830) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117) at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821) at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568) at org.mortbay.http.HttpContext.handle(HttpContext.java:1565) at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633) at org.mortbay.http.HttpContext.handle(HttpContext.java:1517) at org.mortbay.http.HttpServer.service(HttpServer.java:954) at org.mortbay.http.HttpConnection.service(HttpConnection.java:816) at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:983) at org.mortbay.http.HttpConnection.handle(HttpConnection.java:833) at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244) at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357) at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534) Regards, Project trainees.