tomcat-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: Tomcat getting stopped when idle
Date Sat, 02 Nov 2013 13:34:29 GMT
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Vidyadhar,

On 11/1/13, 11:31 PM, Vidyadhar wrote:
> Hi Konstantin,
> 
> On 2 Nov 2013 01:06, "Konstantin Kolinko" <knst.kolinko@gmail.com>
> wrote:
>> 
>> 2013/11/1 Vidyadhar <techienote.com@gmail.com>:
>>> On 1 Nov 2013 00:52, "Konstantin Kolinko"
>>> <knst.kolinko@gmail.com>
> wrote:
>>>> 
>>>> 2013/10/31 Vidyadhar <techienote.com@gmail.com>:
>>>>> Hi,
>>>>> 
>>>>> We are facing some weird issue in our Tomcat environment.
>>>>> After
> starting
>>>>> the Tomcat process on one of our Solaris server, process
>>>>> is
>>> automatically
>>>>> getting shutdown after 2-3 minutes if no activity is done
>>>>> through Application deployed in Tomcat.
>>>>> 
>>>>> I have observed similar issue in one of following mailing
>>>>> thread
> where
>>> as
>>>>> user has asked to install a Listener and print a stacktrace
>>>>> when the
>>> stop
>>>>> event happens. I need to know how to install such
>>>>> Listener.
>>>>> 
>>>> 
>>>> http://tomcat.apache.org/tomcat-6.0-doc/config/listeners.html
>>>>
>>>>
>>>> 
There are several listeners that have been already configured there.
> You
>>> can
>>>> use their source code as an example.
>>>> 
>>>>> http://www.mail-archive.com/users@tomcat.apache.org/msg84717.html
>>>>>
>>>>>
>>>>> 
Server version: Apache Tomcat/6.0.16
>>>>> Server built:   Jan 28 2008 11:35:29 Server number:
>>>>> 6.0.16.0 OS Name:        SunOS OS Version:     5.10 
>>>>> Architecture:   sparc JVM Version:    1.6.0_51-b11 JVM
>>>>> Vendor:     Sun Microsystems Inc.
>>>> 
>>>> A recent commercial JRE, but 5,5 years old Tomcat? You may
>>>> need to read
>>> this:
>>>> http://tomcat.apache.org/security-6.html
>>>> 
>>>>> 
>>>>> 
>>>>> Error in the catalina.out
>>>>> 
>>>>> Oct 30, 2013 5:04:56 AM
>>>>> org.apache.coyote.http11.Http11Protocol pause INFO: Pausing
>>>>> Coyote HTTP/1.1 on http-9920 Oct 30, 2013 5:04:56 AM
>>>>> org.apache.catalina.connector.Connector pause SEVERE:
>>>>> Protocol handler pause failed java.net.ConnectException:
>>>>> Connection refused at
>>>>> java.net.PlainSocketImpl.socketConnect(Native Method) at
> java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:382)
>>>>> at 
>>>>> java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:241)
>>>>>
>>>>> 
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:228)
>>>>> at
>>>>> java.net.SocksSocketImpl.connect(SocksSocketImpl.java:365) 
>>>>> at java.net.Socket.connect(Socket.java:527) at
>>>>> java.net.Socket.connect(Socket.java:476) at
>>>>> java.net.Socket.<init>(Socket.java:373) at
>>>>> java.net.Socket.<init>(Socket.java:216) at
>>>>> 
> org.apache.jk.common.ChannelSocket.unLockSocket(ChannelSocket.java:486)
>>>>>
> 
at
>>> org.apache.jk.common.ChannelSocket.pause(ChannelSocket.java:283)
>>>>>
>>> 
at org.apache.jk.server.JkMain.pause(JkMain.java:681)
>>>>> at 
>>>>> org.apache.jk.server.JkCoyoteHandler.pause(JkCoyoteHandler.java:153)
>>>>>
>>>>> 
at
>>>>> org.apache.catalina.connector.Connector.pause(Connector.java:1073)
>>>>>
>>>>> 
at
>>>>> 
> org.apache.catalina.core.StandardService.stop(StandardService.java:563)
>>>>>
> 
at
>>>>> org.apache.catalina.core.StandardServer.stop(StandardServer.java:744)
>>>>>
>>>>> 
at
> org.apache.catalina.startup.Catalina.stop(Catalina.java:628)
>>>>> at
>>>>> 
>>> 
> org.apache.catalina.startup.Catalina$CatalinaShutdownHook.run(Catalina.java:671)
>>>>
>>>>
> 
Here you already have the stacktrace.
>>>> 
>>>> It starts with "CatalinaShutdownHook". It means that JVM was
>>>> shut down by some external force (e.g. a HUP signal). Thus
>>>> the shutdown hook was triggered.
>>>> 
>>>> Best regards, Konstantin Kolinko
>>>> 
>>>> ---------------------------------------------------------------------
>>>
>>>> 
Hi Konstantin,
>>> 
>>> To find out the actual reason we are changing log level to
>>> trace. Will
> keep
>>> you all updated on the same.
>> 
>> What log level?
> 
> Added .level = fine to understand what is happening.
>> 
>> Tuning anything on the java side is unlikely to help.
>> 
>> 1. If shutdown is initiated by ShutdownHook like in the
>> stacktrace above, it means that JVM died (because of Ctrl+C or
>> SUGHUP or similar that happened outside of the Java code) or
>> exited (because of a java.lang.System.exit() call).
> 
> This is unix environment and I suppose if we execute startup.sh
> tomcat runs in background.

You might not be able to just run startup.sh and then close your
connection. Is that what you are doing?

The original list-archives thread you posted explains exactly that
potential danger.

If you run "startup.sh" and then immediately log out of the terminal
used to run startup.sh, what happens?

- -chris
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.15 (Darwin)
Comment: GPGTools - http://gpgtools.org
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/

iQIcBAEBCAAGBQJSdP9jAAoJEBzwKT+lPKRYvtQQAK6YZHKYKZXdpON6SMyHbpdU
LzfBwnHPCxUGJ87xvM8bofR/UfWyKEqjcFzvNkRjd76DO4oyRI+kBW3pIvN/W/Zn
twHnEQvyrF6CZJlMKLUuboAgzfZ0eu6GP77YYIuh2Olt+VaNt7gTAFCg7C370piZ
h8DwfoTdGahPf9xL5FPCZymNoJIfZac5ugwl62N5V4s4ic0+S1AYCJQRkrMxFTXt
9xV7yM1HCRKlfn/y4DdstzB2l0iEMwrfdQHKUxUnG0M/m2o8YNFTz3Ns2hRQLfCG
EqF4mm03Ou32f/ysMQof8cLodAMfZO0uSGS3/OYnYG2oR+Ved8OOn1KZBFmUvwE0
U6+0N2oUjqa4qDaHZ9y2lfEX7xySyl8ToY/Y6KCv2In0rdfSMmmZ3jwHRjaUnPk/
5Yg1ls9PpBlqS+m4DkVQRcGDQuYrRNeqjcUyPoQyrm5rR8sk2ZoVwc5eMl+cJo0w
7UJTceYDccmK7+kUsrJT9pkmhtcelFPILSRimqiiNkYQO+RIq7720F9Y4CQgDZt4
BFlstq97djtq7hObNdgFxu4GcDTF/kCoBY7ONpAFbHUKgjRTFWaRVmeJh/sHHi0H
Zmx+bd5GqCEtWeSQgpseL8ppT3halNI3uhRT+18sWEQkAB7uWu2e8s81VOxcxvsO
jLYo9TzCkTmgCpi/XdTd
=iIY0
-----END PGP SIGNATURE-----

---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org


Mime
View raw message