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From: Stone <stones.gao@gmail.com>
To: mongrel-unicorn@rubyforge.org
Subject: unicorn worker partially restarted when using USR2
Date: Sat, 7 May 2011 19:54:11 +0800	[thread overview]
Message-ID: <BANLkTi=Fh0iSkUhWP_Hss-LRRe0_sGHUbA@mail.gmail.com> (raw)

In the deployment I did kill -s USR2 `cat unicorn_pid` to gracefully
restart unicorn. But I noticed that unicorn workers were partially
restarted when using USR2.

The following is how I did test:

start unicorn in production environment:

the action has the following code:

  def index
    logger.info "-----------------------------------------fooo bar ---------"
    logger.info "-----------------------------------fooo bar ---------"
  end

then  changed the code to:

  def index
    logger.info "--####---------------------------------fooo bar ---------"
    logger.info "-----------------------------------fooo bar ---------"
  end

and run kill -s USR2 `cat unicorn_pid`

and then tail the production.log  (after several minutes)


Started GET "/" for 192.168.21.1 at Sat May 07 04:13:31 -0700 2011
  Processing by NewHomeController#index as HTML
-----------------------------------fooo bar ---------
-----------------------------------fooo bar ---------
Rendered new_home/index.html.erb within layouts/new_home (15.5ms)
Completed 200 OK in 16ms (Views: 16.2ms)


Started GET "/" for 192.168.21.1 at Sat May 07 04:13:31 -0700 2011
  Processing by NewHomeController#index as HTML
--####---------------------------------fooo bar ---------
-----------------------------------fooo bar ---------
Rendered new_home/index.html.erb within layouts/new_home (28.1ms)
Completed 200 OK in 29ms (Views: 28.9ms)


Started GET "/" for 192.168.21.1 at Sat May 07 04:13:31 -0700 2011
  Processing by NewHomeController#index as HTML
-----------------------------------fooo bar ---------
-----------------------------------fooo bar ---------
Rendered new_home/index.html.erb within layouts/new_home (17.5ms)
Completed 200 OK in 20ms (Views: 18.4ms)


Started GET "/" for 192.168.21.1 at Sat May 07 04:13:37 -0700 2011
  Processing by NewHomeController#index as HTML
--####---------------------------------fooo bar ---------
-----------------------------------fooo bar ---------
Rendered new_home/index.html.erb within layouts/new_home (13.5ms)


So it seems that unicorn was just partially restarted.


Best Regards,
Stone
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             reply	other threads:[~2011-05-07 12:43 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-07 11:54 Stone [this message]
2011-05-07 17:54 ` unicorn worker partially restarted when using USR2 Eric Wong

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