Re: [las_users] LAS: Java Servlet Error

To: cshaji@xxxxxxxxxxxx, oar.pmel.las_users@xxxxxxxx
Subject: Re: [las_users] LAS: Java Servlet Error
From: Roland Schweitzer <Roland.Schweitzer@xxxxxxxx>
Date: Thu, 02 Mar 2006 16:07:27 -0600
In-reply-to: <32944.128.122.80.61.1141336910.squirrel@128.122.80.61>
References: <32808.128.122.80.61.1141319612.squirrel@128.122.80.61><440765D9.2000609@noaa.gov><32944.128.122.80.61.1141336910.squirrel@128.122.80.61>
Sender: owner-las_users@xxxxxxxxxxxxx
User-agent: Thunderbird 1.5 (Windows/20051201)

Hi,

I cannot connect to a web server at

http://maud.cims.nyu.edu/.

In order for LAS to run, you must have an Apache server (or other suitable HTTP server) running which can handle CGI requests.

Roland

C. Shaji wrote:

Dear Roland,
Please see I get the following as the URL attribute.

[root@maud server]# grep 'url' las.xml
url="http://fish.cims.nyu.edu/project_aomip/overview.html"/>
<operations url="http://maud.cims.nyu.edu/las_aomip-bin/LASserver.pl";>

Thanks,
C. Shaji.

Hello,

What is the URL for the product server in your configuration?

Look at the file las/server/las.xml and tell me what is in the url
attribute:

<operations url="http://...";>

Roland

C. Shaji wrote:

Dear All,
I sent one email yesterday reporting some error I am getting in LAS,
which
I could not understand. I am re-sending it again, hoping someone can
understand this LAS error and help me a little bit to go ahead.

I am sorry this is a lengthy email, but please read it.

1) When I try to access the data in the web from the LAS, I get the
following error. Did anyone experience this type of error before? If so,
can someone please explain me what is this error and how can I fix it?
I don't have any experience in Java also.

The only thing I understood is some "java Servlet Connection" is lost.
How
can I debug which connection is lost and how can I bring back that
connection to normal? I would be much glad if someone can help me in
this.
------------------------------------------------
LAS server error
The following error occurred:

javax.servlet.ServletException: Connection refused
at gov.noaa.pmel.tmap.FormFilter.doFilter(FormFilter.java:95)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at
gov.noaa.pmel.tmap.SessionFilter.doFilter(SessionFilter.java:245)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at
gov.noaa.pmel.tmap.ExceptionFilter.doFilter(ExceptionFilter.java:24)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
at java.lang.Thread.run(Thread.java:534)

Root cause of servlet exception was:

javax.servlet.ServletException: Connection refused
at
gov.noaa.pmel.tmap.TemplateServlet.error(TemplateServlet.java:123)
at
org.apache.velocity.servlet.VelocityServlet.doRequest(VelocityServlet.java:363)
at
org.apache.velocity.servlet.VelocityServlet.doGet(VelocityServlet.java:294)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
-------------------------------------------------------------------

2) For the above error I just got one reply as follows:

My guess is that you have multiple copies of the tomcat servlet
container running (all using the same port).

Look at your process list with (ps -ef or ps -auxww) and kill off all
the servlet containers you see running. Then restart the LAS that you
would like to use. Verify it's running with 'ps' and then try to
connect to it.

Roland

I could not find any processes with multiple java running in the system.
Please see what I am getting.

[root@maud las]# ps -ef |grep java
root 1038 1 0 10:40 ? 00:00:04
/usr/java/j2sdk1.4.2/bin/java -D
cshaji 1503 1460 0 10:42 ? 00:00:01 java_vm

---------------------------------------------
[root@maud las]# ps -ef
UID PID PPID C STIME TTY TIME CMD
root 1 0 0 10:39 ? 00:00:04 init
root 2 1 0 10:39 ? 00:00:00 [keventd]
root 3 1 0 10:39 ? 00:00:00 [ksoftirqd_CPU0]
root 4 1 0 10:39 ? 00:00:00 [ksoftirqd_CPU1]
root 5 1 0 10:39 ? 00:00:00 [kswapd]
root 6 1 0 10:39 ? 00:00:00 [kscand/DMA]
root 7 1 0 10:39 ? 00:00:00 [kscand/Normal]
root 8 1 0 10:39 ? 00:00:00 [kscand/HighMem]
root 9 1 0 10:39 ? 00:00:00 [bdflush]
root 10 1 0 10:39 ? 00:00:00 [kupdated]
root 11 1 0 10:39 ? 00:00:00 [mdrecoveryd]
root 17 1 0 10:39 ? 00:00:00 [aacraid]
root 18 1 0 10:39 ? 00:00:00 [scsi_eh_0]
root 23 1 0 10:39 ? 00:00:00 [kjournald]
root 77 1 0 10:39 ? 00:00:00 [khubd]
root 404 1 0 10:39 ? 00:00:00 [knodemgrd]
root 716 1 0 10:40 ? 00:00:00 syslogd -m 0
root 720 1 0 10:40 ? 00:00:00 klogd -x
rpc 737 1 0 10:40 ? 00:00:00 portmap
rpcuser 756 1 0 10:40 ? 00:00:00 rpc.statd
root 864 1 0 10:40 ? 00:00:00 /usr/sbin/sshd
root 880 1 0 10:40 ? 00:00:00 xinetd -stayalive
-pidfile
/var/run/xinetd.pid
root 889 1 0 10:40 ? 00:00:00 cupsd
root 942 1 0 10:40 ? 00:00:00 /bin/sh
/usr/bin/safe_mysqld --defaults-file=/etc/my.cnf
mysql 974 942 0 10:40 ? 00:00:00 /usr/libexec/mysqld
--defaults-file=/etc/my.cnf --basedir=/usr --datadir=/var/lib/mysql
--user=mysql --pid-firoot 991 1 0 10:40 ? 00:00:00
sendmail: accepting connections
smmsp 1000 1 0 10:40 ? 00:00:00 sendmail: Queue
runner@01:00:00 for /var/spool/clientmqueue
root 1010 1 0 10:40 ? 00:00:01 gpm -t ps/2 -m
/dev/mouse
root 1027 1 0 10:40 ? 00:00:00 crond
root 1038 1 0 10:40 ? 00:00:04
/usr/java/j2sdk1.4.2/bin/java
-Djava.endorsed.dirs=/home/las/las_servlet/jakarta/bin:/home/las/las_servlet/jaxfs
1070 1 0 10:40 ? 00:00:00 xfs -droppriv -daemon
daemon 1088 1 0 10:40 ? 00:00:00 /usr/sbin/atd
root 1112 1 0 10:40 ? 00:00:00 rhnsd --interval 120
root 1127 1 0 10:40 ? 00:00:00
/usr/local/rsi/idl_6.1/bin/bin.linux.x86/lmgrd
root 1128 1127 0 10:40 ? 00:00:00
/usr/local/rsi/idl_6.1/bin/bin.linux.x86/idl_lmgrd -T maud.cims.nyu.edu
9.2 3 --lmgrd_start 440711e1
root 1148 1 0 10:40 tty1 00:00:00 /sbin/mingetty tty1
root 1149 1 0 10:40 tty2 00:00:00 /sbin/mingetty tty2
root 1150 1 0 10:40 tty3 00:00:00 /sbin/mingetty tty3
root 1151 1 0 10:40 tty4 00:00:00 /sbin/mingetty tty4
root 1152 1 0 10:40 tty5 00:00:00 /sbin/mingetty tty5
root 1153 1 0 10:40 tty6 00:00:00 /sbin/mingetty tty6
root 1154 1 0 10:40 ? 00:00:00 /usr/bin/gdm-binary
-nodaemon
root 1198 1154 0 10:40 ? 00:00:00 /usr/bin/gdm-binary
-nodaemon
root 1199 1198 1 10:40 ? 00:00:30 /usr/X11R6/bin/X :0
-auth
/var/gdm/:0.Xauth
cshaji 1211 1198 0 10:41 ? 00:00:00 -/bin/csh -c
/usr/bin/ssh-agent /etc/X11/xinit/Xclients
cshaji 1302 1211 0 10:41 ? 00:00:00 /usr/bin/gnome-session
cshaji 1303 1302 0 10:41 ? 00:00:00 /usr/bin/ssh-agent
/etc/X11/xinit/Xclients
cshaji 1308 1 0 10:41 ? 00:00:00 /usr/libexec/gconfd-2 9
cshaji 1310 1 0 10:41 ? 00:00:00
/usr/libexec/bonobo-activation-server --ac-activate --ior-output-fd=14
cshaji 1312 1 0 10:41 ? 00:00:01 /usr/bin/metacity
--sm-client-id=default1
cshaji 1315 1 0 10:41 ? 00:00:00 gnome-settings-daemon
--oaf-activate-iid=OAFIID:GNOME_SettingsDaemon --oaf-ior-fd=12
cshaji 1318 880 0 10:41 ? 00:00:00 fam
cshaji 1323 1 0 10:41 ? 00:00:00 esd -terminate -nobeeps
-as 2 -spawnfd 22
cshaji 1327 1 0 10:41 ? 00:00:00 xscreensaver -nosplash
cshaji 1333 1 0 10:41 ? 00:00:01 gnome-panel
--sm-client-id
default2
cshaji 1335 1 0 10:41 ? 00:00:01 nautilus
--no-default-window --sm-client-id default3
cshaji 1337 1 0 10:41 ? 00:00:01 magicdev --sm-client-id
default4
cshaji 1340 1 0 10:41 ? 00:00:00 pam-panel-icon
--sm-client-id default0
cshaji 1342 1 0 10:41 ? 00:00:10 /usr/bin/python
/usr/bin/rhn-applet-gui --sm-client-id default5
root 1343 1340 0 10:41 ? 00:00:00
/sbin/pam_timestamp_check
-d root
cshaji 1350 1 0 10:41 ? 00:00:02 /usr/bin/gnome-terminal
cshaji 1351 1350 0 10:41 pts/0 00:00:00 -sh
cshaji 1390 1350 0 10:41 pts/1 00:00:00 -sh
root 1429 1390 0 10:41 pts/1 00:00:00 su
root 1432 1429 0 10:41 pts/1 00:00:00 bash
cshaji 1460 1 1 10:42 ? 00:00:25
/usr/lib/mozilla-1.0.2/mozilla-bin
cshaji 1503 1460 0 10:42 ? 00:00:01 java_vm
root 1625 1432 0 11:18 pts/1 00:00:00 ps -ef
----------------------------------------------
I would hiappreciate some suggestions to gix this error.

Thanks in advance,

C. Shaji.

Follow-Ups:
- Re: [las_users] LAS: Java Servlet Error
  - From: C. Shaji

References:
- [las_users] LAS: Java Servlet Error
  - From: C. Shaji
- Re: [las_users] LAS: Java Servlet Error
  - From: Roland Schweitzer
- Re: [las_users] LAS: Java Servlet Error
  - From: C. Shaji

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