Hi Jeff,
The error you are seeing in your Catalina logs seems to be a rather old
issue in DSpace 1.6, which had some (later discovered) memory issues.
That memory leak was one reported on lists back in 2010:
http://dspace.2283337.n4.nabble.com/Dspace-tech-tomcat-reporting-memory-leak-td3287524.html
It was then worked on heavily after those community reports:
http://www.mail-archive.com/[email protected]/msg12161.html
And resolved in DSpace 1.7 which featured massive
performance/scalability improvements (at least for their time):
https://wiki.duraspace.org/display/DSDOC17/Preface
That all being said, I'm not sure that exact performance error would be
causing a blank screen. But, I guess it's possible.
It probably is worth considering whether it's possible to upgrade your
DSpace site. DSpace 1.6 is unsupported these days, but it is possible
to directly migrate your 1.6 data into a 5.x installation via the normal
Upgrade process (which now migrates data automatically):
https://wiki.duraspace.org/display/DSDOC5x/Upgrading+DSpace
It is also worth noting that DSpace 1.6 was released on Java 5 and
Tomcat 4. While it's possible it may work on modern versions of Java
and Tomcat, it's never been tested as such. But, maybe others on this
list are running DSpace 1.6 on Java 6 and Tomcat 7 (and can speak up
about their setup)?
Not sure if any of this helps, but it's hard to tell what the core issue
may be here. Perhaps someone else running DSpace 1.6 may have tips to
provide.
Tim
On 6/22/2016 8:17 AM, Jeffrey A Trimble wrote:
I’ve got a very strange issue here. On my test server I have loaded
tomcat 7.0.69. Whether or not SSL is turned on, when I attempt to
connect to the XMLUI version, I receive a blank (white) screen with
nothing on it. The JSPUI screen is fine.
This is concerning to me since I want to move forward with our
projects. I’ve look at the Catalina logs and here’s what I have found:
INFO: Reloading Context with name [/xmlui] is completed
Jun 22, 2016 9:02:41 AM
org.apache.catalina.loader.WebappClassLoaderBase clearReferencesThreads
SEVERE: The web application [/xmlui] appears to have started a thread
named [FinalizableReferenceQueue] but has failed to stop it. This is
very likely to create a memory leak.
Informational: DSpace 1.6, Java 6, Tomcat 7.0.69
Linux dtest 3.0.101-0.46-default #1 SMP Wed Dec 17 11:04:10 UTC 2014
(8356111) x86_64 x86_64 x86_64 GNU/Linux
Any clues as to what I need to investigate and look at closely?
Thanks in advance,
Jeff
Jeffrey Trimble, MLS
William F. Maag Library
Youngstown State University
330.941.2483 (Office)
[email protected]
http://www.maag.ysu.edu
http://digital.maag.ysu.edu
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