From: Eric Wong <normalperson@yhbt.net>
To: mongrel-unicorn@rubyforge.org
Subject: [ANN] unicorn 3.6.0 - small fixes, PRNG workarounds
Date: Thu, 21 Apr 2011 06:56:49 +0000 [thread overview]
Message-ID: <20110421065649.GA20263@dcvr.yhbt.net> (raw)
Changes:
Mainly small fixes, improvements, and workarounds for fork() issues
with pseudo-random number generators shipped with Ruby (Kernel#rand,
OpenSSL::Random (used by SecureRandom and also by Rails).
The PRNG issues are documented in depth here (and links to Ruby Redmine):
http://bogomips.org/unicorn.git/commit?id=1107ede7
http://bogomips.org/unicorn.git/commit?id=b3241621
If you're too lazy to upgrade, you can just do this in your after_fork
hooks:
after_fork do |server,worker|
tmp = srand
OpenSSL::Random.seed(tmp.to_s) if defined?(OpenSSL::Random)
end
There are also small log reopening (SIGUSR1) improvements:
* relative paths may also be reopened, there's a small chance this
will break with a handful of setups, but unlikely. This should
make configuration easier especially since the "working_directory"
configurator directive exists. Brought up by Matthew Kocher:
http://thread.gmane.org/gmane.comp.lang.ruby.unicorn.general/900
* workers will just die (and restart) if log reopening fails for
any reason (including user error). This is to workaround the issue
reported by Emmanuel Gomez:
http://thread.gmane.org/gmane.comp.lang.ruby.unicorn.general/906
* http://unicorn.bogomips.org/
* mongrel-unicorn@rubyforge.org
* git://bogomips.org/unicorn.git
--
Eric Wong
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next reply other threads:[~2011-04-21 6:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-21 6:56 Eric Wong [this message]
2011-04-26 22:38 ` [ANN] unicorn 3.6.0 - small fixes, PRNG workarounds ghazel
2011-04-26 23:01 ` Eric Wong
2011-04-26 23:17 ` Eric Wong
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