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Service times +2 seconds.. 4 dynos, no traffic.
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WilliamF  
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 More options Feb 13 2012, 10:39 pm
From: WilliamF <wflana...@tempusgroup.com>
Date: Mon, 13 Feb 2012 19:39:45 -0800 (PST)
Local: Mon, Feb 13 2012 10:39 pm
Subject: Service times +2 seconds.. 4 dynos, no traffic.
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Hi all,

I'm struggling with an issue where every request, with 0 load, takes 2+
seconds.  

Environment:

4 dynos
0 traffic (watching the heroku logging live)
controller simply has 1 line in it: render :text => "pong"
Subsequent requests route over the dynos, so the Heroku routing seems to be
working
The times average 8-12ms for the request, but 1600-2200ms for the "service"

Heroku has asked me to use NewRelic to troubleshoot this. But, here's the
deal, NewRelic doesn't show any delay..they show the request times, not the
service times.

If anyone has any thoughts I'm all ears, thanks!

W


 
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kowsik  
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 More options Feb 13 2012, 11:07 pm
From: kowsik <kow...@gmail.com>
Date: Mon, 13 Feb 2012 20:07:23 -0800
Local: Mon, Feb 13 2012 11:07 pm
Subject: Re: Service times +2 seconds.. 4 dynos, no traffic.
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Every now and then when we see this, we simply 'heroku ps:restart' a
few times so your dyno moves out of one EC2 instance into another.
I've seen situations where one of the dynos (we have multiple too) is
slow while the others are okay. Restarting them seems to fix this
problem. YMMV.

K.
---
http://blitz.io
@k0ws1k


 
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