Thanks Sebastian for your prompt reply. I am a Linux newbie, so I didn't understand completely what you conveyed. If you could please spare some time to explain in some more detail, it would help newbies like me.<br><br>
I install monit using <br>sudo aptitude install monit<br><br>once installed <tt>/etc/monit/monitrc </tt>is the place where monitrc file is located.<br><br>Then I do <br>sudo pico /etc/monit/monitrc and its the place where I put code sent by you.<br>
<br><br>Till now, I have understood. How to go about further, when it comes to Seaside view point. The monitrc file you have pasted, I suppose is just for 1 seaside image. Could you please explain how you created <font color="#0000ff" face="Trebuchet MS" size="2"><span>OJ7WRE in </span></font>/etc/init.d . Is it a process ? By the way what is <font color="#0000ff" face="Trebuchet MS" size="2"><span>OJ7WRE </span></font>? <br>
<br>How do you accomplish this, if you have a seaside_cluster with say 4 images?<br><br><br>Thanks again for your time,<br>Rajeev<br><br><br><div class="gmail_quote">On Feb 7, 2008 2:28 AM, Sebastian Sastre <<a href="mailto:ssastre@seaswork.com">ssastre@seaswork.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span>Hi Rajeev,</span></font></div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span></span></font> </div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span> Monit its simple and yet
powerful.</span></font></div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span></span></font> </div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span> This is how the monitrc file looks
like to monitor a squeak image:</span></font></div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span></span></font> </div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span>###############################################################################<br>##
Monitoring DEVELOPMENT Service
OJ7WRE<br>###############################################################################</span></font></div>
<div> </div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span> check process OJ7WRE with pidfile
/var/run/services/OJ7WRE.pid<br> group server<br> start program =
"/etc/init.d/OJ7WRE start"<br> stop program = "/etc/init.d/OJ7WRE
stop"</span></font></div>
<div> </div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span> if cpu > 60% for 2 cycles then
alert<br> if cpu > 80% for 5 cycles then restart<br> if totalmem
> 200.0 MB for 2 cycles then restart</span></font></div>
<div> </div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span> if loadavg(5min) greater than 10 for 8 cycles
then restart<br> if 5 restarts within 5 cycles then
timeout</span></font></div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span>###############################################################################</span></font></div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span></span></font> </div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span> the start and stop script is
doing more or less what you are doing manually. I send a kill -15 to close image
gently. Also I needed to make the pid file when the image starts and remove
before image quits. I have an object in the image dedicated to startup and
shutdown production stuff inside the image.</span></font></div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span></span></font> </div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span> For a "more monitored" services you
can make monit to send you an email to your cell phone if it reach some point
(like a service restart or fail to start or CPU 100% for more than 5 min or
apache is down or whatever).</span></font></div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span></span></font> </div>
<div dir="ltr" align="left"><font color="#0000ff" face="Trebuchet MS" size="2"><span> cheers,</span></font></div>
<div><font color="#0000ff" face="Trebuchet MS" size="2"></font> </div>
<div align="left"><span>
<p style="margin: 0cm 0cm 0pt;" align="left"><span style="font-size: 10pt;">Sebastian
Sastre</span></p>
<p style="margin: 0cm 0cm 0pt;">
</p><p style="margin: 0cm 0cm 0pt; text-align: justify;"><span style="font-size: 7.5pt; font-family: Verdana;" lang="ES-AR"></span><span lang="ES-AR"><font face="Verdana"></font></span></p></span></div><br>
<blockquote style="border-left: 2px solid rgb(0, 0, 255); padding-left: 5px; margin-left: 5px; margin-right: 0px;">
<div dir="ltr" align="left" lang="es">
<hr>
<font face="Tahoma" size="2"><b>De:</b> <a href="mailto:seaside-bounces@lists.squeakfoundation.org" target="_blank">seaside-bounces@lists.squeakfoundation.org</a>
[mailto:<a href="mailto:seaside-bounces@lists.squeakfoundation.org" target="_blank">seaside-bounces@lists.squeakfoundation.org</a>] <b>En nombre de </b>Rajeev
Lochan<br><b>Enviado el:</b> Miércoles, 06 de Febrero de 2008
17:36<br><b>Para:</b> Seaside - general discussion<br><b>Asunto:</b> [Seaside]
Monit on Ubuntu / Debian to monitor Seaside images<br></font><br></div><div><div></div><div class="Wj3C7c">
<div></div>Hi,<br>I have been working towards setting up a dedicated server
(Ubuntu) to host my Seaside app as per Ramon's Blog <a href="http://onsmalltalk.com/programming/smalltalk/scaling-seaside-redux-enter-the-penguin/" target="_blank">http://onsmalltalk.com/programming/smalltalk/scaling-seaside-redux-enter-the-penguin/</a><br>
<br>Till
now, I have been successful in having Apache serve static content and Load
balance between 3 images of my Seaside App. Sticky sessions are working and
everything is going well so far. But I had a problem when installing
Daemontools (which Ramon has written in his blog and also Lukas has written in
Mailing lists), the recent versions of Ubuntu, dont support Daemontools out of
the box. <br><br>In one of the comments to Ramon's post, I could learn that
some of the seasiders have used Monit to do much more than want Daemontools
does. Could you please guide me how to go about.<br><br>I came across a blog
on Rails using Monit <a href="http://www.igvita.com/2006/11/07/monit-makes-mongrel-play-nice/" target="_blank">http://www.igvita.com/2006/11/07/monit-makes-mongrel-play-nice/</a><br>In
that, what is the equivalent code to Seaside of the following code ?<br><br><pre><font size="4">start program = <span style="color: rgb(153, 102, 0);">"/usr/local/bin/ruby /usr/local/bin/mongrel_rails start -d -e production -p 8010 -a <a href="http://127.0.0.1" target="_blank">127.0.0.1</a> -P /home/user/current/log/mongrel.8010.pid -c /home/user/rails/current"</span><br>
stop program = <span style="color: rgb(153, 102, 0);">"/usr/local/bin/ruby /usr/local/bin/mongrel_rails stop -P /home/user/current/log/mongrel.8010.pid"</span></font></pre>Till
now, I have been starting the images manually by <br>/seaside$ squeakvm
-nodisplay seasidedemo "" port 9090 &<br><br>and to kill it, i use $ pkill
squeakvm or $ kill [PID of SqueakVM]<br><br>I suppose, we
will also have to change the following code<br><pre><font size="4"><span style="font-weight: bold; color: rgb(153, 102, 204);">if</span> totalmem is greater than <span style="color: rgb(0, 102, 102);">60.0</span> MB <span style="font-weight: bold; color: rgb(153, 102, 204);">for</span> <span style="color: rgb(0, 102, 102);">5</span> cycles <span style="font-weight: bold; color: rgb(153, 102, 204);">then</span> restart<br>
<br></font></pre>When an image is running on my server (Pentium Dual Core 2.8
GHz with 1 GB RAM), it shows almost 3-4% CPU and 3-4% RAM , should we shift
the memory cap from 60 MB to 100 MB / image ?<br><br><br>Is there any other
options we have ? <br><br>Thanks for the help,<br> <br>Rajeev
<br><br>Co-founder, AR-CAD.com<br><br><a href="http://www.ar-cad.com" target="_blank">http://www.ar-cad.com</a><br>+91 9243468076
(Bangalore)<br>080 65355873 </div></div></blockquote></div>
<br>_______________________________________________<br>seaside mailing list<br><a href="mailto:seaside@lists.squeakfoundation.org">seaside@lists.squeakfoundation.org</a><br><a href="http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside" target="_blank">http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside</a><br>
<br></blockquote></div><br><br clear="all"><br>-- <br>Rajeev Lochan<br><br>Co-founder, AR-CAD.com<br><br><a href="http://www.ar-cad.com">http://www.ar-cad.com</a><br>+91 9243468076 (Bangalore)<br>080 65355873