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From manivanna...@aim.com
Subject Re: Stopping of tomcat failed.
Date Tue, 18 Apr 2006 06:38:26 GMT
hi Yasunori,
 welcome.
 'unclosed sockets' - some client application interacting with your tomcat forgets to close
the connection. (like browsers etc) . Or the tomcat doesnt close connection to the database.
So, this unclosed connections results in 'unclosed sockets'
 'hangin process' - A process which become orphon (very rare!). And joins under 'init' process,
that becomes hard to be killed. (I think there might be lots of nice terms to refer to these
kind  processes)
 
 
--
Manivannan Palanichamy
http://geocities.com/manivannan57



 
 
 
-----Original Message-----
From: Yasunori Taniguchi <taniguchi.yasu@jp.fujitsu.com>
To: Tomcat Users List <users@tomcat.apache.org>
Sent: Tue, 18 Apr 2006 10:00:06 +0900
Subject: Re: Stopping of tomcat failed.


manivannan84@aim.com wrote:
>yes, the 'unclosed sockets', 'hanging process' and the likes are some notable 
root causes.

Sorry. I don't know about 'unclosed sockets', 'hanging process'.
Are they bugs ?
Please tell me the informations about them.


manivannan84@aim.com wrote:
>yes, the 'unclosed sockets', 'hanging process' and the likes are some notable 
root causes.
> 
>--
>Manivannan Palanichamy
>http://geocities.com/manivannan57
>
>
>
> 
> 
> 
>-----Original Message-----
>From: Yasunori Taniguchi <taniguchi.yasu@jp.fujitsu.com>
>To: Tomcat Users List <users@tomcat.apache.org>
>Sent: Mon, 17 Apr 2006 20:27:38 +0900
>Subject: Re: Stopping of tomcat failed.
>
>
>Thanks for your reply !
>
>manivannan84@aim.com wrote:
>>I understand your problem. This happens sometimes. Instead of runnign 
>shutdown.sh, you can manually kill the tomcat 
>instance using the following steps:
>
>What is the cause of this problem's ?
>And.
>Is there any bad influences ? 
>For example, garbage file or process is left, etc.
>
>
>manivannan84@aim.com wrote:
>>I understand your problem. This happens sometimes. Instead of runnign 
>shutdown.sh, you can manually kill the tomcat 
>instance using the following steps:
>>1. type this command:  ps -ax | grep 'endorse'            [an ugly way of 
>finding the tomcat process! ] 
>>   and find out its process id. (For example the Pid: 3435)
>>2. then kill  the pid using kill command like: kill -9 3435
>>(where 3435 is your tomcat instance process id.)
>> 
>>Then, telnet to the tomcat port, sure, it wont reply. This is how it can be 
>shutdown indirectly.
>> 
>>(If still not working, the worst solution is to restart you machine.)
>> 
>>Good luck/
>> 
>> 
>> 
>>--
>>Manivannan Palanichamy
>>http://geocities.com/manivannan57
>>
>>
>>
>> 
>> 
>> 
>>-----Original Message-----
>>From: Yasunori Taniguchi <taniguchi.yasu@jp.fujitsu.com>
>>To: Tomcat Users List <users@tomcat.apache.org>
>>Sent: Mon, 17 Apr 2006 19:48:35 +0900
>>Subject: Re: Stopping of tomcat failed.
>>
>>
>>manivannan84@aim.com さんは書きました:
>>>Are you running apache along with tomcat? 
>>>(I mean apache on port 80 and tomcat on 8080) ?
>>
>>I'm running apache on port 13000.
>>Is there a setting of port for tomcat ?
>>
>>I can use web application on port 13000.
>>I think it means apache and tomcat are running correctly.
>>
>>
>>> 
>>>--
>>>Manivannan Palanichamy
>>>http://geocities.com/manivannan57
>>>
>>>
>>>
>>> 
>>> 
>>> 
>>>-----Original Message-----
>>>From: Yasunori Taniguchi <taniguchi.yasu@jp.fujitsu.com>
>>>To: Tomcat Users List <users@tomcat.apache.org>
>>>Sent: Mon, 17 Apr 2006 13:05:24 +0900
>>>Subject: Re: Stopping of tomcat failed.
>>>
>>>
>>>Hi.
>>>
>>>I want help about the following matter.
>>>
>>>I got an information that :
>>>  Apache was killed. This is the correct operation for apache.
>>>  According to the following matter, tomcat was communicating with apache,
>>>  and probably any web application process was executing.
>>>
>>>Is it really ?
>>>If there is no web application executing, the following matter never happen ?
>>>
>>>
>>>Yasunori Taniguchi さんは書きました:
>>>>Hi.
>>>>
>>>>Please help me.
>>>>
>>>>I'm using apache and tomcat to use Web-based GUI tool on RHEL3.0.
>>>>The GUI tool has a shell script that starts/stops apache and tomcat.
>>>>This script with stop option displayed message "[FAILED]".
>>>>It means that stopping of tomcat has been failed.
>>>>But the tomcat was disappeared in the process list. And re-execution of stop


>>>was
>>>>failed as same as the execution of stop after succeeded-stop. (The messages

>>>output
>>>>to catalina.out is tha same.)
>>>>Then GUI tool was not used at that time.
>>>>In the script, all the messages were discarded to /dev/null, and nothing 
>>>related
>>>>message was output to /var/log/messages or catalina.out.
>>>>So, I want to know :
>>>>1. Did tomcat stopped clearly ?
>>>>   For example, are there any possibilities that tomcat leave garbage of 
>files 
>>
>>>?
>>>>   Restart of tomcat was succeeded. Does it mean that tomcat has stopped 
>>>clearly ?
>>>>2. What kind of error is guessed ?
>>>>
>>>>-----------------------------------------------------------------------------------
>>>>#!/bin/sh
>>>>#
>>>># Startup script
>>>>#
>>>># chkconfig: 345 80 15
>>>># description: 
>>>>#
>>>>
>>>>### BEGIN INIT INFO
>>>># Provides:       test
>>>># Required-Start: $network $remote_fs
>>>># Required-Stop:
>>>># Default-Start:  3 5
>>>># Default-Stop:   0 1 2 6
>>>># Description:    Start the gui daemon
>>>>### END INIT INFO
>>>>
>>>># Shell functions sourced from /etc/rc.status:
>>>>#      rc_check         check and set local and overall rc status
>>>>#      rc_status        check and set local and overall rc status
>>>>#      rc_status -v     ditto but be verbose in local rc status
>>>>#      rc_status -v -r  ditto and clear the local rc status
>>>>#      rc_failed        set local and overall rc status to failed
>>>>#      rc_failed <num>  set local and overall rc status to <num><num>
>>>>#      rc_reset         clear local rc status (overall remains)
>>>>#      rc_exit          exit appropriate to overall rc status
>>>>cd /
>>>>
>>>>if [ -f /etc/rc.status ]; then
>>>>    . /etc/rc.status
>>>>fi
>>>>if [ -f /etc/init.d/functions ]; then
>>>>    . /etc/init.d/functions
>>>>fi
>>>>
>>>>if [ -f /etc/rc.status ]; then
>>>># First reset status of this service
>>>>rc_reset
>>>>fi
>>>>
>>>>case "$1" in
>>>>'start')
>>>>    echo -n "Starting the service "
>>>>    if [ -f /etc/init.d/functions ]; then
>>>>        daemon "/usr/local/tomcat/bin/startup.sh"
>>>>        /opt/FJSVihs/bin/httpd -f /usr/local/apache/conf/httpd.conf 2>

>>>/dev/null
>>>>    else
>>>>        /usr/local/tomcat/bin/startup.sh > /dev/null
>>>>        /opt/FJSVihs/bin/httpd -f /usr/local/apache/conf/httpd.conf 2>

>>>/dev/null
>>>>    fi
>>>>    if [ -f /etc/rc.status ]; then
>>>>        rc_status -v
>>>>    fi
>>>>    if [ -f /etc/init.d/functions ]; then
>>>>        touch /var/lock/subsys/test
>>>>        echo
>>>>    fi
>>>>        ;;
>>>>'stop')
>>>>        echo -n "Stopping service."
>>>>        kill `cat /usr/local/apache/httpd.pid`
>>>>    if [ -f /etc/init.d/functions ]; then
>>>>        daemon "/usr/local/tomcat/bin/shutdown.sh"
>>>>    else
>>>>            /usr/local/tomcat/bin/shutdown.sh > /dev/null
>>>>    fi
>>>>    if [ -f /etc/rc.status ]; then
>>>>        rc_status -v
>>>>    fi
>>>>    if [ -f /etc/init.d/functions ]; then
>>>>        rm -f /var/lock/subsys/test
>>>>        echo
>>>>    fi
>>>>        ;;
>>>>'restart')
>>>>        $0 stop
>>>>        $0 start
>>>>    if [ -f /etc/rc.status ]; then
>>>>        rc_status
>>>>    fi
>>>>        ;;
>>>>'status')
>>>>    if [ -f /etc/rc.status ]; then
>>>>        echo -n "Checking: "
>>>>        if [ -f /usr/local/apache/httpd.pid ]; then
>>>>        rc_failed 0
>>>>        rc_status -v
>>>>        exit 0
>>>>        else
>>>>        rc_failed 3
>>>>        rc_status -v
>>>>        exit 3
>>>>        fi
>>>>    fi
>>>>    ;;
>>>>*)
>>>>        echo "Usage: $0 {start|stop|restart|status}"
>>>>        ;;
>>>>esac
>>>>exit 0
>>>>
>>>>Regards
>>>>Taniguchi
>>>>
>>>>-- 
>>>>Open Source Software Database Prj. Middleware Platform Div.
>>>>Software Unit, Fujitsu Limited
>>>>Yasunori Taniguchi
>>>>e-mail : taniguchi.yasu@jp.fujitsu.com
>>>>
>>>>office layout was changed in 26th Sep., and phone number was changed !!!!
>>>>phone:+81-78-304-0563 ext.:7773-5431
>>>>
>>>>
>>>>---------------------------------------------------------------------
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>>>>
>>>>
>>>
>>>--------
>>>from : 谷口@神戸 (MWPF2開発)
>>>address   : taniguchi.yasu@jp.fujitsu.com
>>>TEL:7773-5431 (078-304-0563)
>>>
>>>
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>>--------
>>from : 谷口@神戸 (MWPF2開発)
>>address   : taniguchi.yasu@jp.fujitsu.com
>>TEL:7773-5431 (078-304-0563)
>>
>>
>>---------------------------------------------------------------------
>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>For additional commands, e-mail: users-help@tomcat.apache.org
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>>Check Out the new free AIM(R) Mail -- 2 GB of storage and industry-leading 
spam 
>and email virus protection.
>
>--------
>from : 谷口@神戸 (MWPF2開発)
>address   : taniguchi.yasu@jp.fujitsu.com
>TEL:7773-5431 (078-304-0563)
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>For additional commands, e-mail: users-help@tomcat.apache.org
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Regards
Taniguchi

-- 
Open Source Software Database Prj. Middleware Platform Div.
Software Unit, Fujitsu Limited
Yasunori Taniguchi
e-mail : taniguchi.yasu@jp.fujitsu.com
phone:+81-78-304-0563 ext.:7773-5431


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