I am in the process of updating my instances of Tomcat and Xwiki into the latest versions. I installed Tomcat 7.0.29 and Xwiki 4.1.4. Tomcat is is installed in E:\Tomcat7.0.29 and Xwiki is installed in C:\XWiki Enterprise. I copied the webapps/xwiki content to tomcat7.0.29/webapps/xwiki. Aftewards, I had to stop the Tomcat service, run the Xwiki startup script, then restart the Tomcat service. Tomcat appears to be serving pages fine, but when I go to http://localhost/xwiki/ I get a Java heap space error as listed below. I am assuming I need to increase the Java heap space but I am not sure how and how high I should set it to accomodate Xwiki. Can anyone point me in the correct direction? Thanks Detailed information: Error number 0 in 11: Uncaught exception Wrapped Exception: Java heap space com.xpn.xwiki.XWikiException: Error number 0 in 11: Uncaught exception Wrapped Exception: Java heap space at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:254) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:116) 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:641) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:120) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:144) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:200) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.OutOfMemoryError: Java heap space at java.lang.StringCoding$StringDecoder.decode(Unknown Source) at java.lang.StringCoding.decode(Unknown Source) at java.lang.String.<init>(Unknown Source) at java.lang.String.<init>(Unknown Source) at com.xpn.xwiki.doc.XWikiAttachment.toStringXML(XWikiAttachment.java:345) at com.xpn.xwiki.doc.XWikiAttachmentArchive.updateArchive(XWikiAttachmentArchive.java:180) at com.xpn.xwiki.doc.XWikiAttachment.updateContentArchive(XWikiAttachment.java:719) at com.xpn.xwiki.store.XWikiHibernateStore.saveAttachment(XWikiHibernateStore.java:1517) at com.xpn.xwiki.store.XWikiHibernateStore.saveAttachmentList(XWikiHibernateStore.java:1485) at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:485) at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:177) at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:170) at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1392) at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1348) at com.xpn.xwiki.web.UploadAction.uploadAttachment(UploadAction.java:196) at com.xpn.xwiki.web.UploadAction.action(UploadAction.java:106) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:230) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:116) 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:641) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:120) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:144) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) Wrapped Exception: java.lang.OutOfMemoryError: Java heap space at java.lang.StringCoding$StringDecoder.decode(Unknown Source) at java.lang.StringCoding.decode(Unknown Source) at java.lang.String.<init>(Unknown Source) at java.lang.String.<init>(Unknown Source) at com.xpn.xwiki.doc.XWikiAttachment.toStringXML(XWikiAttachment.java:345) at com.xpn.xwiki.doc.XWikiAttachmentArchive.updateArchive(XWikiAttachmentArchive.java:180) at com.xpn.xwiki.doc.XWikiAttachment.updateContentArchive(XWikiAttachment.java:719) at com.xpn.xwiki.store.XWikiHibernateStore.saveAttachment(XWikiHibernateStore.java:1517) at com.xpn.xwiki.store.XWikiHibernateStore.saveAttachmentList(XWikiHibernateStore.java:1485) at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:485) at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:177) at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:170) at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1392) at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1348) at com.xpn.xwiki.web.UploadAction.uploadAttachment(UploadAction.java:196) at com.xpn.xwiki.web.UploadAction.action(UploadAction.java:106) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:230) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:116) 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:641) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:120) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:144) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) -- View this message in context: http://xwiki.475771.n2.nabble.com/Installing-Xwiki-4-1-4-Heap-space-error-t… Sent from the XWiki- Dev mailing list archive at Nabble.com.