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Mark Diggory commented on DS-605: --------------------------------- That is just logging, not a smoking gun. Those sessions are created for every new http session and destroyed when it is destroyed, that means that the system is still working even though you not getting pages back through mod_jk. A blank page does sound like mod_jk is getting hungup. Note, I don't use mod_jk anymore in favor of mod_proxy_ajp You need to trace if it is tomcat being unresponsive, can you still access the webapp on another port (8080) when it reaches this state? Note, we run production DSpace 1.6.0 with Apache + mod_proxy_ajp and Tomcat 6 for a couple clients without incidents like this. > Blank screen on XMLUI Dspace 1.6.0 > ---------------------------------- > > Key: DS-605 > URL: http://jira.dspace.org/jira/browse/DS-605 > Project: DSpace 1.x > Issue Type: Bug > Components: XMLUI > Affects Versions: 1.6.0 > Environment: apache-tomcat-6.0.18 > jdk1.6.0_13 > Debian GNU Linux 5.0 > Reporter: Antero Neto > Priority: Critical > > The interface of Dspce XMLUI shows a blank screen and I need to reboot Tomcat. > JSPUI The interface is not affected by the issue. It happens sporadically. > I'm using version 1.6.0 of DSpace. I use a theme based on the theme > "Reference" which comes in DSpace. > Below, some log information that may be related. > 2010-06-09 00:07:00,741 ERROR cocoon.handled - Could not read resource > cocoon://DRI/2/handle/xxxx/xxx/workflow > at <map:serialize type="xml"> - > resource://aspects/Statistics/sitemap.xmap:70:31 > at <map:transform type="Navigation"> - > resource://aspects/Statistics/sitemap.xmap:38:55 > at <map:generate> - resource://aspects/Statistics/sitemap.xmap:33:19 > ... > org.apache.cocoon.ProcessingException: Could not read resource > cocoon://DRI/2/handle/xxxx/xxx/workflow > at <map:serialize type="xml"> - > resource://aspects/Statistics/sitemap.xmap:70:31 > at <map:transform type="Navigation"> - > resource://aspects/Statistics/sitemap.xmap:38:55 > at <map:generate> - resource://aspects/Statistics/sitemap.xmap:33:19 > ... > Caused by: java.lang.NullPointerException > at > org.apache.cocoon.components.source.impl.SitemapSource.init(SitemapSource.java:292) > at > org.apache.cocoon.components.source.impl.SitemapSource.<init>(SitemapSource.java:148) > at > org.apache.cocoon.components.source.impl.SitemapSourceFactory.getSource(SitemapSourceFactory.java:62) > at > org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:153) > at > org.apache.cocoon.components.source.CocoonSourceResolver.resolveURI(CocoonSourceResolver.java:183) > at > org.apache.cocoon.generation.FileGenerator.setup(FileGenerator.java:99) > at > org.dspace.app.xmlui.cocoon.AspectGenerator.setup(AspectGenerator.java:112) > at sun.reflect.GeneratedMethodAccessor57.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.dspace.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo _______________________________________________ Dspace-devel mailing list Dspace-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dspace-devel