Thats the problem. It doesn't get any error page, it just hangs at the point
of getting connection. Can you explain your contex and the datasource
resource configuration?
On 3/16/08, ib solution [EMAIL PROTECTED] wrote:
hai,
is there any an error page that you can share ?, i am using Mysql
or SQL and pls include stacktraces/log
infoHTHMartin - Original Message -
From: Mahesh Viraktamath [EMAIL PROTECTED]
To: users@tomcat.apache.org
Sent: Sunday, March 16, 2008 4:54 AM
Subject: tomcat hangs when connetion pooling used
Hi,
I am using connection pooling for all the database
Probably you are not closing connections somewhere and the maxWait property
of DBCP is not set. The default is to wait indefinitely. So the tomcat is
not hang, it's just waiting for a connection, but all of them are used at
the moment and it keeps waiting.
I believe that if you set a maxWait
On Nov 28, 2007 1:50 PM, Adam Feuer [EMAIL PROTECTED] wrote:
Folks,
We're getting intermittent problems where one tomcat thread hangs for up to
10 minutes writing JSP pages to a socket. We think the socket is an HTTP TCP
socket. The stack trace from a thread dump for the hung thread is below.
Folks,
We're getting intermittent problems where one tomcat thread hangs for up to
10 minutes writing JSP pages to a socket. We think the socket is an HTTP TCP
socket. The stack trace from a thread dump for the hung thread is below.
This happens multiple times per day at seemingly random
On Nov 28, 2007 11:03 AM, Jim Cox [EMAIL PROTECTED] wrote:
FWIW, I've noticed similar behavior, but in my case it is easy to
reproduce:
1. use a browser to request a long-running and/or
large-page-producing web page ;
2. abort the page load before it is done.
At that point I see the HTTP
Our Tomcat 4.1.30 instance seems to hang about once a week. i.e. the
application is unresponsive and it can not be restarted from the
management console. Tomcat must be restarted to restore functionality.
There is nothing in the logs to indicate explicitly what is going on.
The only logging
From: Wm.A.Stafford [mailto:[EMAIL PROTECTED]
Subject: Tomcat hangs, what to do to diagnose the problem?
Can anyone suggest diagnostics to tell what is going on?
Try the usual:
1) enable JMX monitoring (-Dcom.sun.management.jmxremote) and look at
the JVM with JConsole, especially
do kill -3 tomcat pid
that generates stack trace for each thread (aka thread dump) into
std.out, you might want to do it twice so that you can compare them dump
Filip
Wm.A.Stafford wrote:
Our Tomcat 4.1.30 instance seems to hang about once a week. i.e. the
application is unresponsive and
On 9/27/07, Wm.A.Stafford [EMAIL PROTECTED] wrote:
Our Tomcat 4.1.30 instance seems to hang about once a week. i.e. the
application is unresponsive and it can not be restarted from the
management console. Tomcat must be restarted to restore functionality.
There is nothing in the logs to
, Charles R [mailto:[EMAIL PROTECTED]
Sent: Thursday, 27 September 2007 3:20 PM
To: Tomcat Users List
Subject: RE: Tomcat hangs when shutting down
From: Andrew Friebel [mailto:[EMAIL PROTECTED]
Subject: RE: Tomcat hangs when shutting down
I have no AprLifecycleListener to comment out
Hi,
Sorry if i'd hijacked this thread, just wonder is the JMX package
bundled together with Tomcat 4.1 as well? or it's only available to
Tomcat 5.0 onwards?
Thanx
FooShyn
Caldarale, Charles R wrote:
From: Wm.A.Stafford [mailto:[EMAIL PROTECTED]
Subject: Tomcat hangs, what to do
Please do not hi-jack threads.
Mark
-
To start a new topic, e-mail: users@tomcat.apache.org
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
From: foo shyn [mailto:[EMAIL PROTECTED]
Subject: Re: Tomcat hangs, what to do to diagnose the problem?
just wonder is the JMX package bundled together with
Tomcat 4.1 as well? or it's only available to Tomcat
5.0 onwards?
JMX (and therefore JConsole) is dependent on the JRE level
-
From: Gabe Wong [mailto:[EMAIL PROTECTED]
Sent: Wednesday, 26 September 2007 3:40 PM
To: Tomcat Users List
Subject: Re: Tomcat hangs when shutting down
Yes, this topic has been discussed before.
Check the solution in the following links:
http://marc.info/?l=tomcat-userm=119067369518153w=2
http
no AprLifecycleListener to comment out in server.xml
Any other ideas?
Regards,
Andrew
-Original Message-
From: Gabe Wong [mailto:[EMAIL PROTECTED]
Sent: Wednesday, 26 September 2007 3:40 PM
To: Tomcat Users List
Subject: Re: Tomcat hangs when shutting down
Yes, this topic has been discussed before
From: Andrew Friebel [mailto:[EMAIL PROTECTED]
Subject: RE: Tomcat hangs when shutting down
I have no AprLifecycleListener to comment out in server.xml
The APR connector did not exist in Tomcat 5.0.
Sep 26, 2007 9:00:57 AM org.apache.jk.common.ChannelSocket init
INFO: JK2: ajp13 listening
I have seen a few postings around about this, but nothing that seems to
solve my issue. When I shut down tomcat, it hangs and then throws a
'SEVERE: Protocol handler pause failed' error that I can't seem to resolve,
but it does finally stop. I have seen suggestions such as:
. Port
Yes, this topic has been discussed before.
Check the solution in the following links:
http://marc.info/?l=tomcat-userm=119067369518153w=2
http://www.ngasi.com/ngasihelp/ngasiuserguide/tomcat_fails_shutdown_complete.htm
Andrew Friebel wrote:
I have seen a few postings around about this,
, September 20, 2007 5:27 PM
To: Tomcat Users List
Subject: Re: Problem with Tomcat hangs for no obvious reason
I'm wondering if the Ajax is consuming the two or so connections your
browser allows so all other calls to the server get blocked. If you
close all your browser windows and re-launch IE, does
Hi,
I have tomcat 5.5.23 installed on Red Hat Enterprise Linux 5 and a simple web
application using JSF/AJAX. The web application only has two pages. In the
first page, it has a few dropdown lists, which get the options from a SQL
server database. The last dropdown list is refreshed when
. Aliye Edao
-Ursprüngliche Nachricht-
Von: Philipp Lehner [mailto:[EMAIL PROTECTED]
Gesendet: Mittwoch, 15. November 2006 07:44
An: users@tomcat.apache.org
Betreff: Tomcat hangs
Hello,
Since a few days Tomcat hangs on our production server every 20 - 24 hours
: Tomcat hangs
Hi Philipp,
try the following:
Increase maxThreads in server.xml. A good value to start with is
maxProcessors=100.
Set connectionTimeout to a minute - connectionTimeout=6. Restart Tomcat.
Hope this will help.
Mit freundlichem Gruß / kind
From: Philipp Lehner [mailto:[EMAIL PROTECTED]
Subject: AW: AW: Tomcat hangs
Thank you fro your reply but it doesn't work. I got the same
message like one day before, only the value changed:
The advice to raise your thread limit was pretty much guaranteed to just
postpone the inevitable
From: Philipp Lehner [mailto:[EMAIL PROTECTED]
Subject: AW: AW: Tomcat hangs
How can I start such a thread dump. The Tomcat is running on
an Windows 2003 Server as a Service?
For the duration of the investigation, you probably need to run it from
the command line. Once you have
Von: Caldarale, Charles R [EMAIL PROTECTED]
An: Tomcat Users List users@tomcat.apache.org
Gesendet: Donnerstag, den 16. November 2006, 07:28:58 Uhr
Betreff: RE: AW: Tomcat hangs
From: Philipp Lehner [mailto:[EMAIL PROTECTED]
Subject: AW: AW: Tomcat hangs
How can I start such a thread dump
Hello,
Since a few days Tomcat hangs on our production server every 20 – 24 hours. In
the stderr.log I’m getting the following entry:
15.11.2006 00:54:08 org.apache.tomcat.util.threads.ThreadPool logFull
SCHWERWIEGEND: All threads (75) are currently busy, waiting. Increase
maxThreads (75
)
at java.lang.Thread.run (Thread.java:512)
However this exception does not cause Tomcat to hang because the time when
exception is thrown and Tomcat hangs has never matched even with a
difference of hour.
Can someone please help ? Changing anything in the environment would be very
very difficult. Can someone
Thube,
We have a problem in our production system. Following is our environment.
Tomcat 3.3.1a
AIX 5.3
IBM JDK 1.3.1
Apache/1.3.28
This system was working fine previously without any problems for 3 years
the
only change that we did was changed from AIX 5.1 ML 4 to AIX 5.3 ML5 and
hi all,
after a few hot deploys, tomcat hangs and doesnt seem to be responding at all.
i have to shut it down using windows task manager and restart it.
anybody has an answer to this?
cheers
-
To start a new topic, e-mail: users
Ali Kord ha scritto:
hi all,
after a few hot deploys, tomcat hangs and doesnt seem to be responding at all.
i have to shut it down using windows task manager and restart it.
anybody has an answer to this?
Did you check the logs?
cheers
Ciao
Antonio
Antonio Petrelli wrote:
Ali Kord ha scritto:
hi all,
after a few hot deploys, tomcat hangs and doesnt seem to be responding
at all. i have to shut it down using windows task manager and restart it.
anybody has an answer to this?
Tomcat Version? Windows version? JDK version
This most probably means there is deadlock somewhere in your
webapplication, leading to HTTP threads not being released because they
are stuck waiting for something before sending response to a user that
dropped hours agos.
To get clues on where your problem is when this happens, send signal
leading to such a problem.
Thanks and regards,
Ajit.
-Original Message-
From: David Delbecq [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 18, 2006 1:32 PM
To: Tomcat Users List
Subject: Re: FW: tomcat hangs with error msg-All Threads are Busy.
This most probably means
is not able to execute as generally the load on
this proxy is very high leading to such a problem.
Thanks and regards,
Ajit.
-Original Message-
From: David Delbecq [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 18, 2006 1:32 PM
To: Tomcat Users List
Subject: Re: FW: tomcat hangs
the servlet status75 75
-Original Message-
From: David Delbecq [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 18, 2006 2:35 PM
To: Tomcat Users List
Subject: Re: FW: tomcat hangs with error msg-All Threads are Busy.
ok, i bet then you problem is in this :D
or check the servlet status75 75
-Original Message-
From: David Delbecq [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 18, 2006 2:35 PM
To: Tomcat Users List
Subject: Re: FW: tomcat hangs with error msg-All Threads are Busy.
ok, i bet then you problem is in this :D
We're running Tomcat 5.0.28 with JDK 1.4.2_8 hosting a single commercial web
application on our web server which uses MySQL 4.0.26 running on another
server. Both servers are Windows 2003 Enterprise, 2x3.0GHz XEON, 4GB RAM. Our
Tomcat instance is dedicated to the commercial web app, and the
can you port your application to linux where kill -quit given you
complete stacktrace? Unfortunately I don't know how to create full
stack trace under windows, but you'd need it definitely.
Have you tried the manager? It could show you the
servlets/actions/whatever which hangs. Probably you have
One stupid suggestion is to run the tomcat inside an environment like
eclipse
with an eclipse plugin like sysdeo. Then stress the webapplication.
When, it 'hangs'
issue a 'pause' inside the tomcat jvm, and explore the various threads.
Search for 2 kinds of locks:
- non returning http-thread
If I generate a dump of the JVM using Ctrl-Break while
running Tomcat as a console app, what's the best resource for
interpreting this? I suspect the problem is a thread
deadlock, or something similar.
This tells us that you succeed in getting a JVM thread dump and
you are asking for help
I understand synchronization and deadlocks. I'm just looking for some guidance.
(1) Based on the problem I've described, is an analysis of a JVM thread dump a
good next step for diagnosing the hang, or else what would be and (2) are there
any resources that would be helpful with that analysis
On 10/18/05, David Boyer [EMAIL PROTECTED] wrote:
(2) are there any resources that would be helpful with that analysis (e.g.
something that I can use as a tutorial for understanding everything the dump
contains).
Take a look at:
http://issues.apache.org/bugzilla/show_bug.cgi?id=36541
We had
, October 18, 2005 4:03 PM
To: users@tomcat.apache.org
Subject: RE: Debugging Tomcat hangs
I understand synchronization and deadlocks. I'm just looking
for some guidance. (1) Based on the problem I've described,
is an analysis of a JVM thread dump a good next step for
diagnosing the hang
Hi all,
I am also facing an issue with tomcat 4.1.30 on RHEL 3.0. After few days my
server doesnot respond to any request. When i check the process id, it is
running. But when i try to shutdown the tomcat , it doesnot stop. the
process id still exists So i kill -9 the PID and the start the
I have a customer running Tomcat 4.0.18. About twice a week their system is
locking up - obviously we don't know why or I would not be asking.
Symptoms
1) CPU usage per TOP is not very high.
2) When requesting the main web page, the page goes white and never returns.
When this happened yesterday
: Thursday, October 13, 2005 11:27 PM
To: users@tomcat.apache.org
Subject: Tomcat hangs with lots of DBCP Object.wait processes
I have a customer running Tomcat 4.0.18. About twice a week their system is
locking up - obviously we don't know why or I would not be asking.
Symptoms
1) CPU usage per TOP
-
From: Richard Mixon [mailto:[EMAIL PROTECTED]
Sent: Friday, October 14, 2005 3:12 AM
To: 'Tomcat Users List'
Subject: RE: Tomcat hangs with lots of DBCP Object.wait processes
One thing I forgot, that might be relevant.
Another Tomcat instance on the server continued to function just fine. It
also
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