From: Jordan Ritter <jpr5@darkridge.com>
To: unicorn list <mongrel-unicorn@rubyforge.org>
Subject: Re: Thread.current
Date: Thu, 13 Jan 2011 08:46:23 -0800 [thread overview]
Message-ID: <28E5C7A1-2B77-4B90-AEE3-C2812A327366@darkridge.com> (raw)
In-Reply-To: <20110113042636.GA8264@dcvr.yhbt.net>
For the record, the "clear the Thread.current storage before/after each request" is what I think is a crappy idiom. YMMV I guess.
cheers,
--jordan
On Jan 12, 2011, at 8:26 PM, Eric Wong wrote:
> Jimmy Soho <jimmy.soho@gmail.com> wrote:
>> Take for example activesupport's usage of Time.zone. Under water this
>> is set in a thread local var. If you set Time.zone in one request, but
>> not in the next request, using unicorn the next request will use the
>> time zone of the previous request. Using rack or mongrel (in
>> multithreaded mode) you don't have this issue perse (though they have
>> other issues then).
>>
>> Same for the i18n gem and it's usage of the I18n.locale value, which
>> is also set in a thread local var.
>>
>> So yeah, unfortunately I have to take into account this "crappy idiom"
>> and need to know exactly which thread local vars are set by all the
>> components we use, and determine which of those must be reset before
>> each request.
>
> You can probably just write a trivial middleware to clear all
> keys in Thread.current before every request. Or play around with
> Rainbows! with a single-threaded ThreadSpawn:
>
> cat >> unicorn.conf.rb <<EOF
> Rainbows! do
> use :ThreadSpawn
> worker_connections 1
> keepalive_timeout 0
> end
> EOF
>
> And then just run "rainbows" instead of "unicorn".
>
> --
> Eric Wong
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prev parent reply other threads:[~2011-01-13 16:49 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-08 2:00 Thread.current Jimmy Soho
2011-01-08 2:57 ` Thread.current Eric Wong
2011-01-08 3:09 ` Thread.current Curtis j Schofield
2011-01-08 5:54 ` Thread.current Jimmy Soho
2011-01-11 22:52 ` Thread.current Jimmy Soho
2011-01-11 23:12 ` Thread.current Eric Wong
2011-01-11 23:12 ` Thread.current Jordan Ritter
2011-01-12 3:07 ` Thread.current Jimmy Soho
2011-01-13 4:26 ` Thread.current Eric Wong
2011-01-13 16:46 ` Jordan Ritter [this message]
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