[las_users] LAS Installation problem (again)

[Ben Burford <benb@xxxxxxxxxxxx>]

Hello,

The email below (from Roland) explains how the UI server contacts the produc
t server.  Can someone explain how the UI server responds to the first conta
ct from a browser (the very first step in a user accessing a LAS installatio
n)?

Using the example below, http://poseidon-n219.ath.hcmr.gr:8080/ would be the
 URL of an Apache server.  To get the first menu page of this LAS 6.5 instal
lation the user would enter the following into their browser:
http://poseidon-n219.ath.hcmr.gr:8080/las/servlets/dataset

The apache server would then execute some LAS software and LAS would send ba
ck the html for the first (top level) menu page.  Can you tell me:
1. What LAS software module is executed?
2. How does the Apache server know to execute this module?

Does putting the following information in the Apache configuration file (htt
pd.conf) accomplish this? 
ScriptAlias  /las-bin/ /[The Directory Where Your LAS is Installed]/las/serv
er/
Alias /las-output/ /[The Directory Where Your LAS is Installed]/las/server/o
utput/

I don't understand the connection in the case of first contact to the UI ser
ver.  If the user entered: http://poseidon-n219.ath.hcmr.gr:8080/las.html  A
pache would go to the document root (provided in httpd.conf) and look for th
e html document las.html.  Since the user is entering:
http://poseidon-n219.ath.hcmr.gr:8080/las/servlets/dataset
I would expect the Apache server to look for something in the las/servlets/d
ataset subdirectory under the Apache document root.

I'm asking because, in my latest installation of LAS 6.5 on Red Hat AS3.0 th
is is what's happening.  If I put this in my browser:
http://172.16.7.82/las/servlets/dataset   (where http://172.16.7.82 is the U
RL to my Apache server) I see the following in my Apache access_log, which i
s exactly what I expect to see:
"GET /las/servlets/dataset HTTP/1.1"

I expect to see the first (top level) menu page of my installation displayed
 in my browser.  Instead, the standard browser error of "Page could not be f
ound" is displayed in the browser, and I see this error in the Apache error_
log:
[error]  File does not exist: /var/www/html/las

So Apache appears to be looking under the Apache document root (which is /va
r/www/html/) for las.

This is really a crazy problem and I don't know what more to check.  If I se
nd http://172.16.7.82/index.html to my Apache server, it displays the index.
html (from my Apache document root) in my browser.  When I send http://172.1
6.7.82/las/servlets/dataset, I see "GET /las/servlets/dataset HTTP/1.1" in m
y Apache access_log.  So, Apache seems to be working correctly.

I've successfully installed LAS on 2 other computers with Red Hat Linux oper
ating systems, and I'm not doing anything different that I can think of.  I 
don't know what else to check, so I'm hoping you can answer my questions abo
ve so I can do further checking.

Thanks very much,

Ben

p.s. My thanks to Bernhard Giner and Hartmut Frenzerl for answering my earli
er email asking about this problem.  Sorry, I forgot to explain that my serv
er (at http://172.16.7.82) is on an internal LAN so you can't reach it from 
the outside.  Yes, I did try adding :8080 (e.g. http://172.16.7.82:8080/las/
servlets/dataset) but that didn't work.




> Date: Fri, 14 Jul 2006 09:40:03 -0500
> From: Roland Schweitzer <Roland.Schweitzer@noaa.gov>
> Subject: Re: [las_users] LAS Server Error: javax.servlet.ServletException
> To: Eleni Hatzikosti <ehatz@ath.hcmr.gr>
> Cc: oar.pmel.las_users@noaa.gov
> 
> Hello,
> 
> Fortunately, this is an easy problem to solve.  There are several pieces 
> of software that must work together in order for LAS to create a plot of 
> the data.  The error you see occurs when the user interface server (the 
> module responsible for putting up pages the user sees to select the 
> data) attempts to contact the product server (the module that actually 
> plots the result).  The product server is a collection of CGI-base Perl 
> scripts which run when the URL: 
> http://poseidon-n219.ath.hcmr.gr:8080/las-bin/LASserver.pl is 
> contacted.  In order for the Apache server to recognize 
> "las-bin/LASserver.pl" as a CGI script that it can run you need to add 
> some information to the Apache configuration file (usually 
> /etc/httpd/conf/httpd.conf) and force Apache to re-read its 
> configuration files:
> 
> Try:
> You should add the following lines to your Apache configuration file (:
>         ScriptAlias  /las-bin/ /[The Directory Where Your LAS is 
> Installed]/las/server/
>         Alias /las-output/ /[The Directory Where Your LAS is 
> Installed]/las/server/output/
> 
> All of this assumes that http://poseidon-n219.ath.hcmr.gr:8080/ is the 
> URL of an Apache HTTPD server (and not a Tomcat server).  If the server 
> is not an Apache server, you might try configuring Tomcat to run the CGI 
> scripts, but this is an untested and unsupported configuration.
> 
> Roland
> 
> Eleni Hatzikosti wrote:
> > hi everybody,
> >
> > I installed LAS UI Version 6_5_2_1, along with the COADS climatolgy
> > dataset that came with it. However, when I try to visualize the dataset,
> > i get the following error:
> >
> > **********************************************************************
> >
> > LAS server error
> > You have encountered an unexpected User Interface error! Please click
> > here to return to the Datasets page. If this error persists please
> > contact the LAS administrator for this site.
> >
> >
> > ________________________________________________________________________
> >
> > The following error occurred:
> >
> >
> > javax.servlet.ServletException: http://poseidon-n219.ath.hcmr.gr:8080/la
s-bin/LASserver.pl?xml=%3C%3Fxml+version%3D%221.0%22%3F%3E%3ClasRequest+pack
age%3D%22%22+href%3D%22file%3Alas.xml%22+%3E%3Clink+match%3D%22%2Flasdata%2F
operations%2Fshade%22+%2F%3E%3Cproperties+%3E%3Cferret+%3E%3Csize+%3E.5%3C%2
Fsize%3E%3Cformat+%3Eshade%3C%2Fformat%3E%3Ccontour_levels+%3E%3C%2Fcontour_
levels%3E%3Cdo_contour+%3Edefault%3C%2Fdo_contour%3E%3Cexpression+%3E%3C%2Fe
xpression%3E%3Cfill_levels+%3E%3C%2Ffill_levels%3E%3Cfill_type+%3Edefault%3C
%2Ffill_type%3E%3Cimage_format+%3Edefault%3C%2Fimage_format%3E%3Cinterpolate
_data+%3Efalse%3C%2Finterpolate_data%3E%3Cland_type+%3Edefault%3C%2Fland_typ
e%3E%3Cmark_grid+%3Edefault%3C%2Fmark_grid%3E%3Cpalette+%3Edefault%3C%2Fpale
tte%3E%3Csize+%3E0.5%3C%2Fsize%3E%3Cuse_graticules+%3Edefault%3C%2Fuse_grati
cules%3E%3Cuse_ref_map+%3Edefault%3C%2Fuse_ref_map%3E%3C%2Fferret%3E%3C%2Fpr
operties%3E%3Cargs+%3E%3Clink+match%3D%22%2Flasdata%2Fdatasets%2Fcoads_clima
tol!
>  og!
> >  y_cdf%2Fvariables%2Fairt%22+%2F%3E%3Cregion+%3E%3Crange+low%3D%22-180%2
2+type%3D%22x%22+high%3D%22180%22+%2F%3E%3Crange+low%3D%22-89%22+type%3D%22y
%22+high%3D%2289%22+%2F%3E%3Cpoint+v%3D%2215-Jan%22+type%3D%22t%22+%2F%3E%3C
%2Fregion%3E%3C%2Fargs%3E%3C%2FlasRequest%3E
> > 	at gov.noaa.pmel.tmap.FormFilter.doFilter(FormFilter.java:103)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.SessionFilter.doFilter(SessionFilter.java:506)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.ExceptionFilter.doFilter(ExceptionFilter.java:24)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapper
Valve.java:213)
> > 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContext
Valve.java:178)
> > 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.
java:126)
> > 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.
java:105)
> > 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVa
lve.java:107)
> > 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.ja
va:148)
> > 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.jav
a:869)
> > 	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.
processConnection(Http11BaseProtocol.java:664)
> > 	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndp
oint.java:527)
> > 	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFo
llowerWorkerThread.java:80)
> > 	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(Thread
Pool.java:684)
> > 	at java.lang.Thread.run(Thread.java:595)
> >
> > Root cause of servlet exception was:
> >
> > javax.servlet.ServletException: http://poseidon-n219.ath.hcmr.gr:8080/la
s-bin/LASserver.pl?xml=%3C%3Fxml+version%3D%221.0%22%3F%3E%3ClasRequest+pack
age%3D%22%22+href%3D%22file%3Alas.xml%22+%3E%3Clink+match%3D%22%2Flasdata%2F
operations%2Fshade%22+%2F%3E%3Cproperties+%3E%3Cferret+%3E%3Csize+%3E.5%3C%2
Fsize%3E%3Cformat+%3Eshade%3C%2Fformat%3E%3Ccontour_levels+%3E%3C%2Fcontour_
levels%3E%3Cdo_contour+%3Edefault%3C%2Fdo_contour%3E%3Cexpression+%3E%3C%2Fe
xpression%3E%3Cfill_levels+%3E%3C%2Ffill_levels%3E%3Cfill_type+%3Edefault%3C
%2Ffill_type%3E%3Cimage_format+%3Edefault%3C%2Fimage_format%3E%3Cinterpolate
_data+%3Efalse%3C%2Finterpolate_data%3E%3Cland_type+%3Edefault%3C%2Fland_typ
e%3E%3Cmark_grid+%3Edefault%3C%2Fmark_grid%3E%3Cpalette+%3Edefault%3C%2Fpale
tte%3E%3Csize+%3E0.5%3C%2Fsize%3E%3Cuse_graticules+%3Edefault%3C%2Fuse_grati
cules%3E%3Cuse_ref_map+%3Edefault%3C%2Fuse_ref_map%3E%3C%2Fferret%3E%3C%2Fpr
operties%3E%3Cargs+%3E%3Clink+match%3D%22%2Flasdata%2Fdatasets%2Fcoads_clima
tol!
>  og!
> >  y_cdf%2Fvariables%2Fairt%22+%2F%3E%3Cregion+%3E%3Crange+low%3D%22-180%2
2+type%3D%22x%22+high%3D%22180%22+%2F%3E%3Crange+low%3D%22-89%22+type%3D%22y
%22+high%3D%2289%22+%2F%3E%3Cpoint+v%3D%2215-Jan%22+type%3D%22t%22+%2F%3E%3C
%2Fregion%3E%3C%2Fargs%3E%3C%2FlasRequest%3E
> > 	at gov.noaa.pmel.tmap.TemplateServlet.error(TemplateServlet.java:123)
> > 	at org.apache.velocity.servlet.VelocityServlet.doRequest(VelocityServle
t.java:381)
> > 	at org.apache.velocity.servlet.VelocityServlet.doGet(VelocityServlet.ja
va:317)
> > 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
> > 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:252)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.FormFilter.doFilter(FormFilter.java:100)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.SessionFilter.doFilter(SessionFilter.java:506)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.ExceptionFilter.doFilter(ExceptionFilter.java:24)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapper
Valve.java:213)
> > 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContext
Valve.java:178)
> > 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.
java:126)
> > 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.
java:105)
> > 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVa
lve.java:107)
> > 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.ja
va:148)
> > 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.jav
a:869)
> > 	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.
processConnection(Http11BaseProtocol.java:664)
> > 	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndp
oint.java:527)
> > 	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFo
llowerWorkerThread.java:80)
> > 	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(Thread
Pool.java:684)
> > 	at java.lang.Thread.run(Thread.java:595)
> >
> > Root cause of servlet exception was:
> >
> > javax.servlet.ServletException: http://poseidon-n219.ath.hcmr.gr:8080/la
s-bin/LASserver.pl?xml=%3C%3Fxml+version%3D%221.0%22%3F%3E%3ClasRequest+pack
age%3D%22%22+href%3D%22file%3Alas.xml%22+%3E%3Clink+match%3D%22%2Flasdata%2F
operations%2Fshade%22+%2F%3E%3Cproperties+%3E%3Cferret+%3E%3Csize+%3E.5%3C%2
Fsize%3E%3Cformat+%3Eshade%3C%2Fformat%3E%3Ccontour_levels+%3E%3C%2Fcontour_
levels%3E%3Cdo_contour+%3Edefault%3C%2Fdo_contour%3E%3Cexpression+%3E%3C%2Fe
xpression%3E%3Cfill_levels+%3E%3C%2Ffill_levels%3E%3Cfill_type+%3Edefault%3C
%2Ffill_type%3E%3Cimage_format+%3Edefault%3C%2Fimage_format%3E%3Cinterpolate
_data+%3Efalse%3C%2Finterpolate_data%3E%3Cland_type+%3Edefault%3C%2Fland_typ
e%3E%3Cmark_grid+%3Edefault%3C%2Fmark_grid%3E%3Cpalette+%3Edefault%3C%2Fpale
tte%3E%3Csize+%3E0.5%3C%2Fsize%3E%3Cuse_graticules+%3Edefault%3C%2Fuse_grati
cules%3E%3Cuse_ref_map+%3Edefault%3C%2Fuse_ref_map%3E%3C%2Fferret%3E%3C%2Fpr
operties%3E%3Cargs+%3E%3Clink+match%3D%22%2Flasdata%2Fdatasets%2Fcoads_clima
tol!
>  og!
> >  y_cdf%2Fvariables%2Fairt%22+%2F%3E%3Cregion+%3E%3Crange+low%3D%22-180%2
2+type%3D%22x%22+high%3D%22180%22+%2F%3E%3Crange+low%3D%22-89%22+type%3D%22y
%22+high%3D%2289%22+%2F%3E%3Cpoint+v%3D%2215-Jan%22+type%3D%22t%22+%2F%3E%3C
%2Fregion%3E%3C%2Fargs%3E%3C%2FlasRequest%3E
> > 	at gov.noaa.pmel.tmap.TemplateServlet.handleRequest(TemplateServlet.jav
a:191)
> > 	at org.apache.velocity.servlet.VelocityServlet.doRequest(VelocityServle
t.java:358)
> > 	at org.apache.velocity.servlet.VelocityServlet.doGet(VelocityServlet.ja
va:317)
> > 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
> > 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:252)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.FormFilter.doFilter(FormFilter.java:100)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.SessionFilter.doFilter(SessionFilter.java:506)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.ExceptionFilter.doFilter(ExceptionFilter.java:24)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapper
Valve.java:213)
> > 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContext
Valve.java:178)
> > 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.
java:126)
> > 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.
java:105)
> > 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVa
lve.java:107)
> > 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.ja
va:148)
> > 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.jav
a:869)
> > 	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.
processConnection(Http11BaseProtocol.java:664)
> > 	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndp
oint.java:527)
> > 	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFo
llowerWorkerThread.java:80)
> > 	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(Thread
Pool.java:684)
> > 	at java.lang.Thread.run(Thread.java:595)
> >
> > Root cause of servlet exception was:
> >
> > javax.servlet.ServletException: http://poseidon-n219.ath.hcmr.gr:8080/la
s-bin/LASserver.pl?xml=%3C%3Fxml+version%3D%221.0%22%3F%3E%3ClasRequest+pack
age%3D%22%22+href%3D%22file%3Alas.xml%22+%3E%3Clink+match%3D%22%2Flasdata%2F
operations%2Fshade%22+%2F%3E%3Cproperties+%3E%3Cferret+%3E%3Csize+%3E.5%3C%2
Fsize%3E%3Cformat+%3Eshade%3C%2Fformat%3E%3Ccontour_levels+%3E%3C%2Fcontour_
levels%3E%3Cdo_contour+%3Edefault%3C%2Fdo_contour%3E%3Cexpression+%3E%3C%2Fe
xpression%3E%3Cfill_levels+%3E%3C%2Ffill_levels%3E%3Cfill_type+%3Edefault%3C
%2Ffill_type%3E%3Cimage_format+%3Edefault%3C%2Fimage_format%3E%3Cinterpolate
_data+%3Efalse%3C%2Finterpolate_data%3E%3Cland_type+%3Edefault%3C%2Fland_typ
e%3E%3Cmark_grid+%3Edefault%3C%2Fmark_grid%3E%3Cpalette+%3Edefault%3C%2Fpale
tte%3E%3Csize+%3E0.5%3C%2Fsize%3E%3Cuse_graticules+%3Edefault%3C%2Fuse_grati
cules%3E%3Cuse_ref_map+%3Edefault%3C%2Fuse_ref_map%3E%3C%2Fferret%3E%3C%2Fpr
operties%3E%3Cargs+%3E%3Clink+match%3D%22%2Flasdata%2Fdatasets%2Fcoads_clima
tol!
>  og!
> >  y_cdf%2Fvariables%2Fairt%22+%2F%3E%3Cregion+%3E%3Crange+low%3D%22-180%2
2+type%3D%22x%22+high%3D%22180%22+%2F%3E%3Crange+low%3D%22-89%22+type%3D%22y
%22+high%3D%2289%22+%2F%3E%3Cpoint+v%3D%2215-Jan%22+type%3D%22t%22+%2F%3E%3C
%2Fregion%3E%3C%2Fargs%3E%3C%2FlasRequest%3E
> > 	at gov.noaa.pmel.tmap.DataBean.init(DataBean.java:317)
> > 	at gov.noaa.pmel.tmap.TemplateServlet.handleRequest(TemplateServlet.jav
a:159)
> > 	at org.apache.velocity.servlet.VelocityServlet.doRequest(VelocityServle
t.java:358)
> > 	at org.apache.velocity.servlet.VelocityServlet.doGet(VelocityServlet.ja
va:317)
> > 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
> > 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:252)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.FormFilter.doFilter(FormFilter.java:100)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.SessionFilter.doFilter(SessionFilter.java:506)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.ExceptionFilter.doFilter(ExceptionFilter.java:24)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapper
Valve.java:213)
> > 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContext
Valve.java:178)
> > 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.
java:126)
> > 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.
java:105)
> > 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVa
lve.java:107)
> > 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.ja
va:148)
> > 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.jav
a:869)
> > 	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.
processConnection(Http11BaseProtocol.java:664)
> > 	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndp
oint.java:527)
> > 	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFo
llowerWorkerThread.java:80)
> > 	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(Thread
Pool.java:684)
> > 	at java.lang.Thread.run(Thread.java:595)
> >
> > Root cause of servlet exception was:
> >
> > java.io.FileNotFoundException: http://poseidon-n219.ath.hcmr.gr:8080/las
-bin/LASserver.pl?xml=%3C%3Fxml+version%3D%221.0%22%3F%3E%3ClasRequest+packa
ge%3D%22%22+href%3D%22file%3Alas.xml%22+%3E%3Clink+match%3D%22%2Flasdata%2Fo
perations%2Fshade%22+%2F%3E%3Cproperties+%3E%3Cferret+%3E%3Csize+%3E.5%3C%2F
size%3E%3Cformat+%3Eshade%3C%2Fformat%3E%3Ccontour_levels+%3E%3C%2Fcontour_l
evels%3E%3Cdo_contour+%3Edefault%3C%2Fdo_contour%3E%3Cexpression+%3E%3C%2Fex
pression%3E%3Cfill_levels+%3E%3C%2Ffill_levels%3E%3Cfill_type+%3Edefault%3C%
2Ffill_type%3E%3Cimage_format+%3Edefault%3C%2Fimage_format%3E%3Cinterpolate_
data+%3Efalse%3C%2Finterpolate_data%3E%3Cland_type+%3Edefault%3C%2Fland_type
%3E%3Cmark_grid+%3Edefault%3C%2Fmark_grid%3E%3Cpalette+%3Edefault%3C%2Fpalet
te%3E%3Csize+%3E0.5%3C%2Fsize%3E%3Cuse_graticules+%3Edefault%3C%2Fuse_gratic
ules%3E%3Cuse_ref_map+%3Edefault%3C%2Fuse_ref_map%3E%3C%2Fferret%3E%3C%2Fpro
perties%3E%3Cargs+%3E%3Clink+match%3D%22%2Flasdata%2Fdatasets%2Fcoads_climat
olo!
>  gy!
> >  _cdf%2Fvariables%2Fairt%22+%2F%3E%3Cregion+%3E%3Crange+low%3D%22-180%22
+type%3D%22x%22+high%3D%22180%22+%2F%3E%3Crange+low%3D%22-89%22+type%3D%22y%
22+high%3D%2289%22+%2F%3E%3Cpoint+v%3D%2215-Jan%22+type%3D%22t%22+%2F%3E%3C%
2Fregion%3E%3C%2Fargs%3E%3C%2FlasRequest%3E
> > 	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCo
nnection.java:1150)
> > 	at gov.noaa.pmel.tmap.DataBean.init(DataBean.java:245)
> > 	at gov.noaa.pmel.tmap.TemplateServlet.handleRequest(TemplateServlet.jav
a:159)
> > 	at org.apache.velocity.servlet.VelocityServlet.doRequest(VelocityServle
t.java:358)
> > 	at org.apache.velocity.servlet.VelocityServlet.doGet(VelocityServlet.ja
va:317)
> > 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
> > 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:252)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.FormFilter.doFilter(FormFilter.java:100)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.SessionFilter.doFilter(SessionFilter.java:506)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.ExceptionFilter.doFilter(ExceptionFilter.java:24)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapper
Valve.java:213)
> > 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContext
Valve.java:178)
> > 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.
java:126)
> > 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.
java:105)
> > 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVa
lve.java:107)
> > 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.ja
va:148)
> > 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.jav
a:869)
> > 	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.
processConnection(Http11BaseProtocol.java:664)
> > 	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndp
oint.java:527)
> > 	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFo
llowerWorkerThread.java:80)
> > 	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(Thread
Pool.java:684)
> > 	at java.lang.Thread.run(Thread.java:595)
> > java.io.FileNotFoundException: http://poseidon-n219.ath.hcmr.gr:8080/las
-bin/LASserver.pl?xml=%3C%3Fxml+version%3D%221.0%22%3F%3E%3ClasRequest+packa
ge%3D%22%22+href%3D%22file%3Alas.xml%22+%3E%3Clink+match%3D%22%2Flasdata%2Fo
perations%2Fshade%22+%2F%3E%3Cproperties+%3E%3Cferret+%3E%3Csize+%3E.5%3C%2F
size%3E%3Cformat+%3Eshade%3C%2Fformat%3E%3Ccontour_levels+%3E%3C%2Fcontour_l
evels%3E%3Cdo_contour+%3Edefault%3C%2Fdo_contour%3E%3Cexpression+%3E%3C%2Fex
pression%3E%3Cfill_levels+%3E%3C%2Ffill_levels%3E%3Cfill_type+%3Edefault%3C%
2Ffill_type%3E%3Cimage_format+%3Edefault%3C%2Fimage_format%3E%3Cinterpolate_
data+%3Efalse%3C%2Finterpolate_data%3E%3Cland_type+%3Edefault%3C%2Fland_type
%3E%3Cmark_grid+%3Edefault%3C%2Fmark_grid%3E%3Cpalette+%3Edefault%3C%2Fpalet
te%3E%3Csize+%3E0.5%3C%2Fsize%3E%3Cuse_graticules+%3Edefault%3C%2Fuse_gratic
ules%3E%3Cuse_ref_map+%3Edefault%3C%2Fuse_ref_map%3E%3C%2Fferret%3E%3C%2Fpro
perties%3E%3Cargs+%3E%3Clink+match%3D%22%2Flasdata%2Fdatasets%2Fcoads_climat
olo!
>  gy!
> >  _cdf%2Fvariables%2Fairt%22+%2F%3E%3Cregion+%3E%3Crange+low%3D%22-180%22
+type%3D%22x%22+high%3D%22180%22+%2F%3E%3Crange+low%3D%22-89%22+type%3D%22y%
22+high%3D%2289%22+%2F%3E%3Cpoint+v%3D%2215-Jan%22+type%3D%22t%22+%2F%3E%3C%
2Fregion%3E%3C%2Fargs%3E%3C%2FlasRequest%3E
> > 	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLCo
nnection.java:1150)
> > 	at gov.noaa.pmel.tmap.DataBean.init(DataBean.java:245)
> > 	at gov.noaa.pmel.tmap.TemplateServlet.handleRequest(TemplateServlet.jav
a:159)
> > 	at org.apache.velocity.servlet.VelocityServlet.doRequest(VelocityServle
t.java:358)
> > 	at org.apache.velocity.servlet.VelocityServlet.doGet(VelocityServlet.ja
va:317)
> > 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
> > 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:252)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.FormFilter.doFilter(FormFilter.java:100)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.SessionFilter.doFilter(SessionFilter.java:506)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at gov.noaa.pmel.tmap.ExceptionFilter.doFilter(ExceptionFilter.java:24)
> > 	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(App
licationFilterChain.java:202)
> > 	at org.apache.catalina.core.ApplicationFilterChain.doFilter(Application
FilterChain.java:173)
> > 	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapper
Valve.java:213)
> > 	at org.apache.catalina.core.StandardContextValve.invoke(StandardContext
Valve.java:178)
> > 	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.
java:126)
> > 	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.
java:105)
> > 	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVa
lve.java:107)
> > 	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.ja
va:148)
> > 	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.jav
a:869)
> > 	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.
processConnection(Http11BaseProtocol.java:664)
> > 	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndp
oint.java:527)
> > 	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFo
llowerWorkerThread.java:80)
> > 	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(Thread
Pool.java:684)
> > 	at java.lang.Thread.run(Thread.java:595)
> >
> >
> > I would be grateful if anybody could help me in any way.
> >
> > Thanks
> >
> >
> >   
>