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From: Jonathan del Strother <maillist@steelskies.com>
To: mongrel-unicorn@rubyforge.org
Subject: Zero-downtime restarts while updating the environment?
Date: Fri, 3 Jan 2014 19:15:06 +0000	[thread overview]
Message-ID: <CAF5DW8K9u6tdreDpCqOz90w=NXF659CUnvOiiDRjH=-jiL961Q@mail.gmail.com> (raw)

Hi there,
I recently ran into a problem where I had to update bundler from 1.3
to 1.5 so that it recognised the "platforms:[ruby_21]" option in my
Gemfile.  However, Unicorn continued to use Bundler 1.3 when I
re-exec'd it via USR2 (perhaps unsurprisingly), and so couldn't load
my new gemfile until I completely restarted it.

I ended up tweaking our balancers to funnel all our traffic to half
our backend machines, restarted unicorn on the other half, then
flipped the traffic to the first half and repeat.  Is that the
standard way of doing it, or is there a better way?
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             reply	other threads:[~2014-01-03 19:48 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-03 19:15 Jonathan del Strother [this message]
2014-01-03 20:42 ` Zero-downtime restarts while updating the environment? Sam Saffron
2014-01-03 21:44 ` Eric Wong

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