[Building Sakai] strange runtime error

[Jon Gorrono]

http://www.mail-archive.com/users@tomcat.apache.org/msg59696.html

looks like you could get this error with the prop worker.list= set
with tomcat workers in it ... the claim is that it should only contain
balancer workers.

Anyway, this log message disappeared with the person listened to that
part of this advise  :/

On Mon, Apr 26, 2010 at 6:26 PM, Glenn R. Golden <ggolden22 at mac.com> wrote:
> Etudes is getting a strange new error.  One (of 4) app server (at a time) will go into a period where it produces a large number of bug reports.  This has been happening for a few weeks (only!) and on all 4 app servers, but not too often and never on more than one at a time.
>
> At first, I thought we had our files open limit set too low, and it does seem that when this is happening, the JVM is using a larger number of files than when it is not happening.  We have raised the limit from 1024 (default) to 4096, but the problem has not gone away.
>
> One clue I am seeing is in the mod_jk.log.  (Our requests come into apache, and go over ajp to tomcat).  We seem to see a steady stream of these messages when the app server is having this trouble, and not at other times.
>
> [Mon Apr 26 18:19:11.733 2010] [25466:3624277344] [warn] map_uri_to_worker_ext::jk_uri_worker_map.c (962): Uri * is invalid. Uri must start with /
> [Mon Apr 26 18:19:11.734 2010] [25466:3624277344] [warn] map_uri_to_worker_ext::jk_uri_worker_map.c (962): Uri * is invalid. Uri must start with /
>
> Does anyone know that this means?
>
> BTW, our Sakai code is vintage 2.3.x.  The  error messages we get are like this:
>
> org.sakaiproject.tool.api.ToolException
>   at org.sakaiproject.cheftool.ToolServlet.doGet(ToolServlet.java:208)
> caused by: java.lang.reflect.InvocationTargetException
>   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> caused by: java.lang.NullPointerException
>   at org.sakaiproject.cheftool.PagedResourceActionII.prepPage(PagedResourceActionII.java:239)
>   at org.sakaiproject.announcement.tool.AnnouncementAction.buildMainPanelContext(AnnouncementAction.java:868)
>
>
> org.sakaiproject.tool.api.ToolException
>   at org.sakaiproject.cheftool.ToolServlet.doGet(ToolServlet.java:208)
> caused by: java.lang.reflect.InvocationTargetException
>   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> caused by: java.lang.NullPointerException
>   at org.sakaiproject.message.tool.SynopticMessageAction.buildMainPanelContext(SynopticMessageAction.java:317)
>
>
> org.sakaiproject.tool.api.ToolException
>   at org.sakaiproject.cheftool.ToolServlet.doGet(ToolServlet.java:208)
> caused by: java.lang.reflect.InvocationTargetException
>   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> caused by: java.lang.NullPointerException
>   at org.sakaiproject.announcement.tool.AnnouncementAction.buildMainPanelContext(AnnouncementAction.java:770)
>
>
> Thanks!
>
> - Glenn
>
> Glenn R. Golden
> Chief Architect, Etudes, Inc.
> ggolden at etudes.org
>
>
>
>
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>
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-- 
Jon Gorrono
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