I was running that setup, but then opted for Perlbal - Apache (mod_proxy balancer) - Mongrel.<br><div class="gmail_quote"><br>Apache seems to take care of any inconsistency I was witnessing with mongrel. Mind you I would just use Apache- Mongrel for serving pages. But we have MogileFS in our setup, so we needed Perlbal for our image host (img.*.com) etc..
<br><br>Now do the mongrel processes fall into a zombie state? or is it for sure, Perlbal, not connecting to the ports. I personally could not get Perlbal to work with Mongrels OPTION send, thus had to turn off the verify_backend while I was testing, and it seemed to work great.
<br><br>But that being said, we ended up going the route mentioned before in the long run.<br><br>Hope that helps?<div><div></div><div class="Wj3C7c"><br><br><div class="gmail_quote">On Oct 31, 2007 1:26 PM, TJ Murphy <
<a href="mailto:TJ@freewebs.com" target="_blank">TJ@freewebs.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><font face="Arial" size="2"><span>Allo,</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>I'm currently
running Perlbal (1.59, reverse_proxy) to load balance a bunch of
mongrels. Occasionally I get to a point where Perlbal will serve
return a blank white screen instead of returning the app response. My
users have dubbed it the "White Screen Of Death". I'm not sure where to
begin debugging the problem or sorting out the cause.</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>I see the issue
happen when I have a spike in requests or if I kill off the
mongrels. I have found that adding more mongrels usually leads to
less white screens.</span></font></div>
<div><font face="Arial" size="2"><span></span></font> </div>
<div><font face="Arial" size="2"><span>Also, it seems that
verify_backend doesn't really jive with mongrel. I suspect it's because
mongrel doesn't respond to an OPTIONS request. Is there any way to benefit
from verify_backend in my case?</span></font></div></div>
</blockquote></div><br>
</div></div></div><br>