Hi Eduard,

We have proceeded as per your advice and created a cron with the URL as 
explained on 
http://platform.xwiki.org/xwiki/bin/view/Features/Exports#HXARExport 
<http://platform.xwiki.org/xwiki/bin/view/Features/Exports#HXARExport>. It 
however generates a lot of (in my eyes) unexpected errors in the Log file 
(resulting in a Log file size of over 500Mb). When we do an export using the 
Admin panel, we do not encounter this problem. 

[example 1]
the Page (in Bold) has only 1 version (version 1.2) present (and no minor 
versions). There are no additional errors for this document.
[example 2]
This page (also Bold) actually has a version history. The document’s current 
version is 14.1 with 2 intermediate (lower) versions before 11.1 and quite a 
few below that. Apparently, the export indicates that there is an error in 11.1 
but I’m unable to determine the error in the objects. The higher versions do 
not generate an error and I expect that he quits after the error.

Note: Our pages only contain Custom Objects and Comment objects. There’s no 
actual content on the page.
Note: I can not find any version information in the XAR. It seems that only a 
single version is included in the Export.

Can someone explain why this is happening or guide me towards a solution and 
(more important :-)) how to correct this?

With kind regards,

Peter

[example 1]
2015-09-23 03:10:40,084 
[http://wiki.dkf.wiki/xwiki/bin/export/Space/Page?format=xar&pages=vr360brabant:%25.%25&name=vr360brabant&history=true&backup=true&author=XWiki.Admin
 
<http://wiki.dkf.wiki/xwiki/bin/export/Space/Page?format=xar&pages=vr360brabant:%25.%25&name=vr360brabant&history=true&backup=true&author=XWiki.Admin>]
 ERROR kiDocumentLocaleEventGenerator - Document 
[vr360brabant:ZTCVR50348655.EIGSW_jq4Q8bdPCP7zE] has malformed history 
com.xpn.xwiki.XWikiException: Error number 0 in 3: Exception while hibernate 
execute
        at 
com.xpn.xwiki.store.XWikiHibernateBaseStore.execute(XWikiHibernateBaseStore.java:1305)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.store.XWikiHibernateBaseStore.executeRead(XWikiHibernateBaseStore.java:1338)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.store.XWikiHibernateVersioningStore.loadRCSNodeContent(XWikiHibernateVersioningStore.java:291)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.doc.rcs.XWikiRCSNodeInfo.getContent(XWikiRCSNodeInfo.java:194) 
~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.doc.rcs.XWikiRCSArchive.<init>(XWikiRCSArchive.java:79) 
~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.doc.XWikiDocumentArchive.getArchive(XWikiDocumentArchive.java:199)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.XWikiDocumentLocaleEventGenerator.write(XWikiDocumentLocaleEventGenerator.java:90)
 [xwiki-platform-filter-instance-oldcore-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.XWikiDocumentLocaleEventGenerator.write(XWikiDocumentLocaleEventGenerator.java:55)
 [xwiki-platform-filter-instance-oldcore-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.AbstractBeanEntityEventGenerator.write(AbstractBeanEntityEventGenerator.java:114)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.input.AbstractEntityEventGenerator.write(AbstractEntityEventGenerator.java:77)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.DocumentInstanceInputEventGenerator.beginWikiDocument(DocumentInstanceInputEventGenerator.java:107)
 [xwiki-platform-filter-instance-oldcore-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.InstanceInputFilterStream.writeDocument(InstanceInputFilterStream.java:213)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.InstanceInputFilterStream.writeSpace(InstanceInputFilterStream.java:186)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.InstanceInputFilterStream.writeWiki(InstanceInputFilterStream.java:158)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.InstanceInputFilterStream.read(InstanceInputFilterStream.java:131)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.InstanceInputFilterStream.read(InstanceInputFilterStream.java:53)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.input.AbstractBeanInputFilterStream.read(AbstractBeanInputFilterStream.java:80)
 [xwiki-commons-filter-api-6.4.5.jar:na]
        at com.xpn.xwiki.web.ExportAction.exportXAR(ExportAction.java:332) 
[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at com.xpn.xwiki.web.ExportAction.render(ExportAction.java:76) 
[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:345) 
[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:146) 
[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
 [struts-core-1.3.10.jar:1.3.10]
        at 
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228) 
[struts-core-1.3.10.jar:1.3.10]
        at 
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) 
[struts-core-1.3.10.jar:1.3.10]
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) 
[struts-core-1.3.10.jar:1.3.10]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:620) 
[tomcat-servlet-3.0-api.jar:na]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) 
[tomcat-servlet-3.0-api.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115) 
[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
 [xwiki-platform-wysiwyg-server-6.4.5.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
[tomcat7-websocket.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
 [xwiki-platform-container-servlet-6.4.5.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66) 
[xwiki-platform-webdav-server-6.4.5.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
 [xwiki-platform-container-servlet-6.4.5.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
 [xwiki-platform-container-servlet-6.4.5.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) 
[catalina.jar:7.0.54]
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
[catalina.jar:7.0.54]
        at 
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) 
[catalina.jar:7.0.54]
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) 
[catalina.jar:7.0.54]
        at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:193) 
[tomcat-coyote.jar:7.0.54]
        at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
 [tomcat-coyote.jar:7.0.54]
        at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
 [tomcat-coyote.jar:7.0.54]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
[na:1.7.0_85]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
[na:1.7.0_85]
        at 
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
 [tomcat-coyote.jar:7.0.54]
        at java.lang.Thread.run(Thread.java:745) [na:1.7.0_85]
Caused by: org.hibernate.ObjectNotFoundException: No row with the given 
identifier exists: 
[com.xpn.xwiki.doc.rcs.XWikiRCSNodeContent#com.xpn.xwiki.doc.rcs.XWikiRCSNodeId@3241c34b[docId=4003338556527287548,version=1.2]]
        at 
org.hibernate.impl.SessionFactoryImpl$2.handleEntityNotFound(SessionFactoryImpl.java:435)
 ~[hibernate-core-3.6.9.Final.jar:3.6.9.Final]
        at 
org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:233)
 ~[hibernate-core-3.6.9.Final.jar:3.6.9.Final]
        at 
org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:285)
 ~[hibernate-core-3.6.9.Final.jar:3.6.9.Final]
        at 
org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:152)
 ~[hibernate-core-3.6.9.Final.jar:3.6.9.Final]
        at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:1090) 
~[hibernate-core-3.6.9.Final.jar:3.6.9.Final]
        at org.hibernate.impl.SessionImpl.load(SessionImpl.java:974) 
~[hibernate-core-3.6.9.Final.jar:3.6.9.Final]
        at 
com.xpn.xwiki.store.XWikiHibernateVersioningStore$4.doInHibernate(XWikiHibernateVersioningStore.java:297)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.store.XWikiHibernateVersioningStore$4.doInHibernate(XWikiHibernateVersioningStore.java:292)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.store.XWikiHibernateBaseStore.execute(XWikiHibernateBaseStore.java:1299)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        ... 64 common frames omitted


[example 2]
2015-09-23 03:15:09,925 
[http://wiki.dkf.wiki/xwiki/bin/export/Space/Page?format=xar&pages=duto:%25.%25&name=duto&history=true&backup=true&author=XWiki.Admin
 
<http://wiki.dkf.wiki/xwiki/bin/export/Space/Page?format=xar&pages=duto:%25.%25&name=duto&history=true&backup=true&author=XWiki.Admin>]
 ERROR kiDocumentLocaleEventGenerator - Document 
[duto:AfgeleidePrincipes.AP_P9doA5GQpspPj] has malformed history 
com.xpn.xwiki.XWikiException: Error number 0 in 3: Exception while hibernate 
execute
        at 
com.xpn.xwiki.store.XWikiHibernateBaseStore.execute(XWikiHibernateBaseStore.java:1305)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.store.XWikiHibernateBaseStore.executeRead(XWikiHibernateBaseStore.java:1338)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.store.XWikiHibernateVersioningStore.loadRCSNodeContent(XWikiHibernateVersioningStore.java:291)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.doc.rcs.XWikiRCSNodeInfo.getContent(XWikiRCSNodeInfo.java:194) 
~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.doc.rcs.XWikiRCSArchive.<init>(XWikiRCSArchive.java:79) 
~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.doc.XWikiDocumentArchive.getArchive(XWikiDocumentArchive.java:199)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.XWikiDocumentLocaleEventGenerator.write(XWikiDocumentLocaleEventGenerator.java:90)
 [xwiki-platform-filter-instance-oldcore-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.XWikiDocumentLocaleEventGenerator.write(XWikiDocumentLocaleEventGenerator.java:55)
 [xwiki-platform-filter-instance-oldcore-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.AbstractBeanEntityEventGenerator.write(AbstractBeanEntityEventGenerator.java:114)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.input.AbstractEntityEventGenerator.write(AbstractEntityEventGenerator.java:77)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.DocumentInstanceInputEventGenerator.beginWikiDocument(DocumentInstanceInputEventGenerator.java:107)
 [xwiki-platform-filter-instance-oldcore-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.InstanceInputFilterStream.writeDocument(InstanceInputFilterStream.java:213)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.InstanceInputFilterStream.writeSpace(InstanceInputFilterStream.java:186)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.InstanceInputFilterStream.writeWiki(InstanceInputFilterStream.java:158)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.InstanceInputFilterStream.read(InstanceInputFilterStream.java:131)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.instance.internal.input.InstanceInputFilterStream.read(InstanceInputFilterStream.java:53)
 [xwiki-platform-filter-instance-api-6.4.5.jar:na]
        at 
org.xwiki.filter.input.AbstractBeanInputFilterStream.read(AbstractBeanInputFilterStream.java:80)
 [xwiki-commons-filter-api-6.4.5.jar:na]
        at com.xpn.xwiki.web.ExportAction.exportXAR(ExportAction.java:332) 
[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at com.xpn.xwiki.web.ExportAction.render(ExportAction.java:76) 
[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:345) 
[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:146) 
[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
 [struts-core-1.3.10.jar:1.3.10]
        at 
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228) 
[struts-core-1.3.10.jar:1.3.10]
        at 
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) 
[struts-core-1.3.10.jar:1.3.10]
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) 
[struts-core-1.3.10.jar:1.3.10]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:620) 
[tomcat-servlet-3.0-api.jar:na]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) 
[tomcat-servlet-3.0-api.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115) 
[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
 [xwiki-platform-wysiwyg-server-6.4.5.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
[tomcat7-websocket.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
 [xwiki-platform-container-servlet-6.4.5.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66) 
[xwiki-platform-webdav-server-6.4.5.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
 [xwiki-platform-container-servlet-6.4.5.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
 [xwiki-platform-container-servlet-6.4.5.jar:na]
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) 
[catalina.jar:7.0.54]
        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
[catalina.jar:7.0.54]
        at 
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) 
[catalina.jar:7.0.54]
        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
 [catalina.jar:7.0.54]
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) 
[catalina.jar:7.0.54]
        at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:193) 
[tomcat-coyote.jar:7.0.54]
        at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
 [tomcat-coyote.jar:7.0.54]
        at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
 [tomcat-coyote.jar:7.0.54]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
[na:1.7.0_85]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
[na:1.7.0_85]
        at 
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
 [tomcat-coyote.jar:7.0.54]
        at java.lang.Thread.run(Thread.java:745) [na:1.7.0_85]
Caused by: org.hibernate.ObjectNotFoundException: No row with the given 
identifier exists: 
[com.xpn.xwiki.doc.rcs.XWikiRCSNodeContent#com.xpn.xwiki.doc.rcs.XWikiRCSNodeId@472d6673[docId=9066115529778850634,version=11.1]]
        at 
org.hibernate.impl.SessionFactoryImpl$2.handleEntityNotFound(SessionFactoryImpl.java:435)
 ~[hibernate-core-3.6.9.Final.jar:3.6.9.Final]
        at 
org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:233)
 ~[hibernate-core-3.6.9.Final.jar:3.6.9.Final]
        at 
org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:285)
 ~[hibernate-core-3.6.9.Final.jar:3.6.9.Final]
        at 
org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:152)
 ~[hibernate-core-3.6.9.Final.jar:3.6.9.Final]
        at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:1090) 
~[hibernate-core-3.6.9.Final.jar:3.6.9.Final]
        at org.hibernate.impl.SessionImpl.load(SessionImpl.java:974) 
~[hibernate-core-3.6.9.Final.jar:3.6.9.Final]
        at 
com.xpn.xwiki.store.XWikiHibernateVersioningStore$4.doInHibernate(XWikiHibernateVersioningStore.java:297)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.store.XWikiHibernateVersioningStore$4.doInHibernate(XWikiHibernateVersioningStore.java:292)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        at 
com.xpn.xwiki.store.XWikiHibernateBaseStore.execute(XWikiHibernateBaseStore.java:1299)
 ~[xwiki-platform-legacy-oldcore-6.4.5.jar:na]
        ... 64 common frames omitted



> Br,
> 
> Peter
> 
>> Hi Peter,
>> 
>> Of course, though you might want to think a bit on the approach.
>> 
>> 1) If you want to do it in XWiki using the scheduler plugin, you have to
>> write some groovy script [1] in the scheduled task that you create in
> order
>> to use the filter module [2] (or the old packager module [3], whichever
> you
>> choose) in order to export the pages you are interested in and save the
>> result (on the filesystem or as an attachment in a page).
>> 
>> As inspiration, you could check out the source code (in java) of the
> export
>> action [4] which is exactly what is going on when you are exporting a
> page
>> from the UI.
>> 
>> 2) A simpler choice, IMO, would be to schedule a cron [5] task on a linux
>> machine (possible the same one running the XWiki instance) and have that
>> task simply download (using something like cURL [6]) the result of a
>> manually crafter export URL (as detailed in our documentation [7])
>> containing the list of pages to export.
>> 
>> Hope this helps,
>> Eduard
>> 
>> ----------
>> [1] http://platform.xwiki.org/xwiki/bin/view/DevGuide/Scripting 
>> <http://platform.xwiki.org/xwiki/bin/view/DevGuide/Scripting>
>> [2] http://extensions.xwiki.org/xwiki/bin/view/Extension/Filter+Module 
>> <http://extensions.xwiki.org/xwiki/bin/view/Extension/Filter+Module>
>> [3]
>> 
> https://github.com/xwiki/xwiki-platform/blob/master/xwiki-platform-core/xwiki-platform-oldcore/src/main/java/com/xpn/xwiki/plugin/packaging/PackageAPI.java
>  
> <https://github.com/xwiki/xwiki-platform/blob/master/xwiki-platform-core/xwiki-platform-oldcore/src/main/java/com/xpn/xwiki/plugin/packaging/PackageAPI.java>
>> [4]
>> 
> https://github.com/xwiki/xwiki-platform/blob/master/xwiki-platform-core/xwiki-platform-oldcore/src/main/java/com/xpn/xwiki/web/ExportAction.java#L244
>> [5] https://en.wikipedia.org/wiki/Cron
>> [6] https://en.wikipedia.org/wiki/CURL
>> [7] http://platform.xwiki.org/xwiki/bin/view/Features/Exports#HXARExport
>> 
>> 
>> On Thu, Sep 17, 2015 at 3:49 PM, Peter Huisman <[email protected]>
> wrote:
>> 
>>> Hi,
>>> 
>>> Is there a way to generate XAR’s using XWiki’s scheduling function? I’m
>>> not looking for a DB based backup but merely for a backup of spaces /
> pages.
>>> 
>>> With kind regards,
>>> 
>>> Peter
>>> _______________________________________________
>>> users mailing list
>>> [email protected]
>>> http://lists.xwiki.org/mailman/listinfo/users
>>> 
>> 
> 
> _______________________________________________
> users mailing list
> [email protected]
> http://lists.xwiki.org/mailman/listinfo/users
> 
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