Thanks for responding. I wrote my message in panic mode so I left out
some vital information. The servlet works for three queries and then
causes Tomcat to produce this error in its log file:
2002-05-03 09:35:08 org.apache.catalina.INVOKER.gdse.search: init
2002-05-03 09:47:47 org.apache.catalina.INVOKER.gdse.search:
/servlet/gdse.search: org.apache.velocity.exception.ResourceNotF
oundException: Unable to find resource 'templates/gdse/main.vm'
2002-05-03 09:47:50 WebappLoader[] Error tracking modifications
java.lang.NullPointerException
at java.util.Arrays.sort(Arrays.java:1073)
at
org.apache.naming.resources.FileDirContext.list(FileDirContext.java:895)
at
org.apache.naming.resources.FileDirContext.listBindings(FileDirContext.java:354)
at
org.apache.naming.resources.ProxyDirContext.listBindings(ProxyDirContext.java:479)
at
org.apache.catalina.loader.WebappClassLoader.modified(WebappClassLoader.java:798)
at
org.apache.catalina.loader.WebappLoader.run(WebappLoader.java:1272)
at java.lang.Thread.run(Thread.java:536)
After that I have to reboot my server. It is claiming it is a Velocity
problem but I have not had this appear before. Yet when I started to use
Lucene, I get this weird error. All of my other servlets seem to be
working fine, however, they have not been tested under any simulated load
yet.
I tried to pattern my code after the demo but I may be missing something.
If you want to see the code, let me know. Any guesses as to whether I
should be talking with Velocity or with you guys for this problem? Thanks.
James
*********************************************************
The Game Development Search Engine
and DQuest E-zine
http://www.gdse.com/ A Member of the Future Games Network
http://www.fgn.com/ On Thu, 2 May 2002, Otis Gospodnetic wrote:
> Uh, this is a very broad question.
> A number of things could be wrong.
> Look at your Tomcat log files.
> Write a class that you can run from the command line, not as a servlet,
> that may be easier to debug. You can use one of the demo ones to get
> started.
> Log things, don't catch exceptions and ignore them, etc.
> Check that your index directory exists, that it is readable by the user
> doing the searchs, etc. etc.
>
> Otis
>
> --- James Rozee <root@gdse.com> wrote:
> > I've just recently recoded my entire website and search engine to use
> > Tomcat 4.0.3, Velocity, MySQL and Lucene 1.2-rc4. I have been using
> > MySQL
> > and servlets for a few years now. However, I only recently started
> > using
> > Lucene. I've built a Lucene index from my document collection and
> > now I
> > need to be able to search it from a servlet.
> >
> > My first attempt to do this causes Tomcat to return a page that is
> > empty.
> > Can anyone give me some advice on how to track down my problem? My
> > hardware is an SS1000E with 5 SM81s and 1.2GB RAM. Thanks.
> >
> > James
> >
> > *********************************************************
> > The Game Development Search Engine
> > and DQuest E-zine
> > http://www.gdse.com/
> >
> > A Member of the Future Games Network
> > http://www.fgn.com/
> >
> >
> >
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