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pkgsrc change:
* Add ${GEM_EXTSDIR}/gem.build_complete for new rubygems and updated ruby.
=== unicorn 4.8.3 - the end of an era / 2014-05-07 07:50 UTC
This release updates documentation to reflect the migration of the
mailing list to a new public-inbox[1] instance. This is necessary
due to the impending RubyForge shutdown on May 15, 2014.
The public-inbox address is: unicorn-public@bogomips.org
(no subscription required, plain text only)
ssoma[2] git archives: git://bogomips.org/unicorn-public
browser-friendly archives: http://bogomips.org/unicorn-public/
Using, getting help for, and contributing to unicorn will never
require any of the following:
1) non-Free software (including SaaS)
2) registration or sign-in of any kind
3) a real identity (we accept mail from Mixmaster)
4) a graphical user interface
Nowadays, plain-text email is the only ubiquitous platform which
meets all our requirements for communication.
There is also one small bugfix to handle premature grandparent death
upon initial startup. Most users are unaffected.
[1] policy: http://public-inbox.org/ - git://80x24.org/public-inbox
an "archives first" approach to mailing lists
[2] mechanism: http://ssoma.public-inbox.org/ - git://80x24.org/ssoma
some sort of mail archiver (using git)
=== unicorn 4.8.2 - avoid race condition during worker startup / 2014-02-05 18:24 UTC
We close SELF_PIPE in the worker immediately, but signal handlers
do not get setup immediately. So prevent workers from erroring out
due to invalid SELF_PIPE.
=== unicorn 4.8.1 / 2014-01-29 08:48 UTC
fix races/error handling in worker SIGQUIT handler
This protects us from two problems:
1) we (or our app) somehow called IO#close on one of the sockets
we listen on without removing it from the readers array.
We'll ignore IOErrors from IO#close and assume we wanted to
close it.
2) our SIGQUIT handler is interrupted by itself. This can happen as
a fake signal from the master could be handled and a real signal
from an outside user is sent to us (e.g. from unicorn-worker-killer)
or if a user uses the killall(1) command.
=== unicorn 4.8.0 - big internal changes, but compatible / 2014-01-11 07:34 UTC
This release contains fairly major internal workings of master-to-worker
notifications. The master process no longer sends signals to workers
for most tasks. This works around some compatibility issues with some
versions of the "pg" gem (and potentially any other code which may not
handle EINTR properly). One extra benefit is it also helps stray
workers notice a rare, unexpected master death more easily. Workers
continue to (and will always) accept existing signals for compatibility
with tools/scripts which may signal workers.
PID file are always written early (even on upgrade) again to avoid
breaking strange monitoring setups which use PID files. Keep in mind we
have always discouraged monitoring based on PID files as they are
fragile.
We now avoid bubbling IOError to the Rack app on premature client
disconnects when streaming the input body. This is usually not a
problem with nginx, but may be on some LAN setups without nginx).
Thanks to Sam Saffron, Jimmy Soho, Rodrigo Rosenfeld Rosas,
Michael Fischer, and Andrew Hobson for their help with this release.
Note: the unicorn mailing list will be moved/changed soon due to the
RubyForge shutdown. unicorn will always rely only on Free Software.
There will never be any sign-up requirements nor terms-of-service to
agree to when communicating with us.
=== unicorn 4.8.0pre1 / 2013-12-09 09:51 UTC
Eric Wong (6):
tests: fix SO_REUSEPORT tests for old Linux and non-Linux
stream_input: avoid IO#close on client disconnect
t0300: kill off stray processes in test
always write PID file early for compatibility
doc: clarify SIGNALS and reference init example
rework master-to-worker signaling to use a pipe
=== unicorn 4.7.0 - minor updates, license tweak / 2013-11-04 06:59 UTC
* support SO_REUSEPORT on new listeners (:reuseport)
This allows users to start an independent instance of unicorn on
a the same port as a running unicorn (as long as both instances
use :reuseport).
ref: https://lwn.net/Articles/542629/
* unicorn is now GPLv2-or-later and Ruby 1.8-licensed
(instead of GPLv2-only, GPLv3-only, and Ruby 1.8-licensed)
This changes nothing at the moment. Once the FSF publishes the next
version of the GPL, users may choose the newer GPL version without the
unicorn BDFL approving it. Two years ago when I got permission to add
GPLv3 to the license options, I also got permission from all past
contributors to approve future versions of the GPL. So now I'm
approving all future versions of the GPL for use with unicorn.
Reasoning below:
In case the GPLv4 arrives and I am not alive to approve/review it,
the lesser of evils is have give blanket approval of all future GPL
versions (as published by the FSF). The worse evil is to be stuck
with a license which cannot guarantee the Free-ness of this project
in the future.
This unfortunately means the FSF can theoretically come out with
license terms I do not agree with, but the GPLv2 and GPLv3 will
always be an option to all users.
Note: we currently prefer GPLv3
Two improvements thanks to Ernest W. Durbin III:
* USR2 redirects fixed for Ruby 1.8.6 (broken since 4.1.0)
* unicorn(1) and unicorn_rails(1) enforces valid integer for -p/--port
A few more odd, minor tweaks and fixes:
* attempt to rename PID file when possible (on USR2)
* workaround reopen atomicity issues for stdio vs non-stdio
* improve handling of client-triggerable socket errors
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not use libtool to do so. This is required to correctly depend upon a
gcc runtime package (e.g. gcc47-libs) when using USE_PKGSRC_GCC_RUNTIME.
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=== unicorn 4.6.3 - fix --no-default-middleware option / 2013-06-21 08:01 UTC
Thanks to Micah Chalmer for this fix. There are also minor
documentation updates and internal cleanups.
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=== unicorn 4.6.2 - HTTP parser fix for Rainbows! / 2013-02-26 02:59 UTC
This release fixes a bug in Unicorn::HttpParser#filter_body
which affected some configurations of Rainbows! There is
also a minor size reduction in the DSO.
=== unicorn 4.6.1 - minor cleanups / 2013-02-21 08:38 UTC
Unicorn::Const::UNICORN_VERSION is now auto-generated from
GIT-VERSION-GEN and always correct. Minor cleanups for
hijacking.
=== unicorn 4.6.0 - hijacking support / 2013-02-06 11:23 UTC
This pre-release adds hijacking support for Rack 1.5 users.
See Rack documentation for more information about hijacking.
There is also a new --no-default-middleware/-N option
for the `unicorn' command to ignore RACK_ENV within unicorn
thanks to Lin Jen-Shin.
There are only documentation and test-portability updates
since 4.6.0pre1, no code changes.
=== unicorn 4.6.0pre1 - hijacking support / 2013-01-29 21:05 UTC
This pre-release adds hijacking support for Rack 1.5 users.
See Rack documentation for more information about hijacking.
There is also a new --no-default-middleware/-N option
for the `unicorn' command to ignore RACK_ENV within unicorn.
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=== unicorn 4.5.0 - check_client_connection option / 2012-12-07 22:59 UTC
The new check_client_connection option allows unicorn to detect
most disconnected local clients before potentially expensive
application processing begins.
This feature is useful for applications experiencing spikes of
traffic leading to undesirable queue times, as clients will
disconnect (and perhaps even retry, compounding the problem)
before unicorn can even start processing the request.
To enable this feature, add the following line to a unicorn
config file:
check_client_connection true
This feature only works when nginx (or any other HTTP/1.0+
client) is on the same machine as unicorn.
A huge thanks to Tom Burns for implementing and testing this
change in production with real traffic (including mitigating
an unexpected DoS attack).
ref: http://mid.gmane.org/CAK4qKG3rkfVYLyeqEqQyuNEh_nZ8yw0X_cwTxJfJ+TOU+y8F+w@mail.gmail.com
This release fixes broken Rainbows! compatibility in 4.5.0pre1.
=== unicorn 4.5.0pre1 - check_client_connection option / 2012-11-29 23:48 UTC
The new check_client_connection option allows unicorn to detect
most disconnected clients before potentially expensive
application processing begins.
This feature is useful for applications experiencing spikes of
traffic leading to undesirable queue times, as clients will
disconnect (and perhaps even retry, compounding the problem)
before unicorn can even start processing the request.
To enable this feature, add the following line to a unicorn
config file:
check_client_connection true
A huge thanks to Tom Burns for implementing and testing this
change in production with real traffic (including mitigating
an unexpected DoS attack).
=== unicorn 4.4.0 - minor updates / 2012-10-11 09:11 UTC
Non-regular files are no longer reopened on SIGUSR1. This
allows users to specify FIFOs as log destinations.
TCP_NOPUSH/TCP_CORK is no longer set/unset by default. Use
:tcp_nopush explicitly with the "listen" directive if you wish
to enable TCP_NOPUSH/TCP_CORK.
Listen sockets are now bound _after_ loading the application for
preload_app(true) users. This prevents load balancers from
sending traffic to an application server while the application
is still loading.
There are also minor test suite cleanups.
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=== unicorn 4.3.1 - shutdown() fixes / 2012-04-29 07:04 UTC
* Call shutdown(2) if a client EOFs on us during upload.
We can avoid holding a socket open if the Rack app forked a
process during uploads.
* ignore potential Errno::ENOTCONN errors (from shutdown(2)).
Even on LANs, connections can occasionally be accept()-ed but
be unusable afterwards.
Thanks to Joel Nimety <jnimety@continuity.net>,
Matt Smith <matt@nearapogee.com> and George <lists@southernohio.net>
on the mongrel-unicorn@rubyforge.org mailing list for their
feedback and testing for this release.
=== unicorn 4.3.0 - minor fixes and updates / 2012-04-17 21:51 UTC
* PATH_INFO (aka REQUEST_PATH) increased to 4096 (from 1024).
This allows requests with longer path components and matches
the system PATH_MAX value common to GNU/Linux systems for
serving filesystem components with long names.
* Apps that fork() (but do not exec()) internally for background
tasks now indicate the end-of-request immediately after
writing the Rack response.
Thanks to Hongli Lai, Lawrence Pit, Patrick Wenger and Nuo Yan
for their valuable feedback for this release.
=== unicorn 4.2.1 - minor fix and doc updates / 2012-03-26 21:39 UTC
* Stale pid files are detected if a pid is recycled by processes
belonging to another user, thanks to Graham Bleach.
* nginx example config updates thanks to to Eike Herzbach.
* KNOWN_ISSUES now documents issues with apps/libs that install
conflicting signal handlers.
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Unicorn is an HTTP server for Rack applications designed to only serve
fast clients on low-latency, high-bandwidth connections and take
advantage of features in Unix/Unix-like kernels. Slow clients should
only be served by placing a reverse proxy capable of fully buffering
both the the request and response in between Unicorn and slow clients.
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