From: Eric Wong <e@80x24.org>
To: ruby-talk@ruby-lang.org, unicorn-public@bogomips.org
Cc: Jeremy Evans <code@jeremyevans.net>,
Simon Eskildsen <simon.eskildsen@shopify.com>,
Dylan Thacker-Smith <dylan.smith@shopify.com>
Subject: [ANN] unicorn 5.3.0 - Rack HTTP server for fast clients and Unix
Date: Sat, 1 Apr 2017 08:08:05 +0000 [thread overview]
Message-ID: <20170401080805.GA11218@dcvr> (raw)
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.
* https://bogomips.org/unicorn/
* public list: unicorn-public@bogomips.org
* mail archives: https://bogomips.org/unicorn-public/
* git clone git://bogomips.org/unicorn.git
* https://bogomips.org/unicorn/NEWS.atom.xml
* nntp://news.public-inbox.org/inbox.comp.lang.ruby.unicorn
Changes:
unicorn 5.3.0
A couple of portability fixes from Dylan Thacker-Smith and
Jeremy Evans since 5.3.0.pre1 over a week ago, but this looks
ready for a stable release, today.
When I started this over 8 years ago, I wondered if this would
just end up being an April Fools' joke. Guess not. I guess I
somehow tricked people into using a terribly marketed web server
that cannot talk directly to untrusted clients :x Anyways,
unicorn won't be able to handle slow clients 8 years from now,
either, or 80 years from now. And I vow never to learn to use
new-fangled things like epoll, kqueue, or threads :P
Anyways, this is a largish release with several new features,
and no backwards incompatibilities.
Simon Eskildsen contributed heavily using TCP_INFO under Linux
to implement the (now 5 year old) check_client_connection feature:
https://bogomips.org/unicorn/Unicorn/Configurator.html#method-i-check_client_connection
https://bogomips.org/unicorn-public/?q=s:check_client_connection&d:..20170401&x=t
This also led to FreeBSD and OpenBSD portability improvements in
one of our dependencies, raindrops:
https://bogomips.org/raindrops-public/20170323024829.GA5190@dcvr/T/#u
Jeremy Evans contributed several new features. First he
implemented after_worker_exit to aid debugging:
https://bogomips.org/unicorn/Unicorn/Configurator.html#method-i-after_worker_exit
https://bogomips.org/unicorn-public/?q=s:after_worker_exit&d:..20170401&x=t#t
And then security-related features to isolate workers. Workers
may now chroot to drop access to the master filesystem, and the
new after_worker_ready configuration hook now exists to aid with
chroot support in workers:
https://bogomips.org/unicorn/Unicorn/Configurator.html#method-i-after_worker_ready
https://bogomips.org/unicorn/Unicorn/Worker.html#method-i-user
https://bogomips.org/unicorn-public/?q=s:after_worker_ready&d:..20170401&x=t#t
https://bogomips.org/unicorn-public/?q=s:chroot&d:..20170401&x=t#t
Additionally, workers may run in a completely different VM space
(nullifying preload_app and any CoW savings) with the new
worker_exec option:
https://bogomips.org/unicorn/Unicorn/Configurator.html#method-i-worker_exec
https://bogomips.org/unicorn-public/?q=s:worker_exec&d:..20170401&x=t#t
There are also several improvements to FreeBSD and OpenBSD
support with the addition of these features.
shortlog of changes since v5.2.0 (2016-10-31):
Dylan Thacker-Smith (1):
Check for Socket::TCP_INFO constant before trying to get TCP_INFO
Eric Wong (30):
drop rb_str_set_len compatibility replacement
TUNING: document THP caveat for Linux users
tee_input: simplify condition for IO#write
remove response_start_sent
http_request: freeze constant strings passed IO#write
Revert "remove response_start_sent"
t/t0012-reload-empty-config.sh: access ivars directly if needed
t0011-active-unix-socket.sh: fix race condition in test
new test for check_client_connection
revert signature change to HttpServer#process_client
support "struct tcp_info" on non-Linux and Ruby 2.2+
unicorn_http: reduce rb_global_variable calls
oob_gc: rely on opt_aref_with optimization on Ruby 2.2+
http_request: reduce insn size for check_client_connection
freebsd: avoid EINVAL when setting accept filter
test-lib: expr(1) portability fix
tests: keep disabled tests defined
test_exec: SO_KEEPALIVE value only needs to be true
doc: fix links to raindrops project
http_request: support proposed Raindrops::TCP states on non-Linux
ISSUES: expand on mail archive info + subscription disclaimer
test_ccc: use a pipe to synchronize test
doc: remove private email support address
input: update documentation and hide internals.
http_server: initialize @pid ivar
gemspec: remove olddoc from build dependency
doc: add version annotations for new features
unicorn 5.3.0.pre1
doc: note after_worker_exit is also 5.3.0+
test_exec: SO_KEEPALIVE value only needs to be true (take #2)
Jeremy Evans (7):
Add after_worker_exit configuration option
Fix code example in after_worker_exit documentation
Add support for chroot to Worker#user
Add after_worker_ready configuration option
Add worker_exec configuration option
Don't pass a block for fork when forking workers
Check for SocketError on first ccc attempt
Simon Eskildsen (1):
check_client_connection: use tcp state on linux
--
Yes, this release is real despite the date.
next reply other threads:[~2017-04-01 8:08 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-01 8:08 Eric Wong [this message]
2017-04-02 2:14 ` [ANN] unicorn 5.3.0 - Rack HTTP server for fast clients and Unix Eric Wong
2017-10-03 19:15 ` [ANN] unicorn 5.3.1 " Eric Wong
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