* [ANN] unicorn 5.3.0 - Rack HTTP server for fast clients and Unix
@ 2017-04-01 8:08 4% Eric Wong
0 siblings, 0 replies; 3+ results
From: Eric Wong @ 2017-04-01 8:08 UTC (permalink / raw)
To: ruby-talk, unicorn-public
Cc: Jeremy Evans, Simon Eskildsen, Dylan Thacker-Smith
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.
^ permalink raw reply [relevance 4%]
* [ANN] unicorn 5.3.0.pre1 - Rack HTTP server for fast clients and Unix
@ 2017-03-24 0:28 5% Eric Wong
0 siblings, 0 replies; 3+ results
From: Eric Wong @ 2017-03-24 0:28 UTC (permalink / raw)
To: ruby-talk, unicorn-public; +Cc: Jeremy Evans, Simon Eskildsen
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
This is a pre-release RubyGem intended for testing.
Changes:
unicorn 5.3.0.pre1
A largish release with several new features.
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:..20170324&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:..20170324&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:..20170324&x=t#t
https://bogomips.org/unicorn-public/?q=s:chroot&d:..20170324&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:..20170324&x=t#t
There are also several improvements to FreeBSD and OpenBSD
support with the addition of these features.
34 changes since 5.2.0 (2016-10-31):
Eric Wong (27):
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
Jeremy Evans (6):
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
Simon Eskildsen (1):
check_client_connection: use tcp state on linux
--
5.3.0 in a week, maybe?
^ permalink raw reply [relevance 5%]
* Re: [PATCH] Add worker_exec configuration option V2
@ 2017-03-13 15:32 7% ` Jeremy Evans
0 siblings, 0 replies; 3+ results
From: Jeremy Evans @ 2017-03-13 15:32 UTC (permalink / raw)
To: Eric Wong; +Cc: unicorn-public
On 03/11 07:18, Eric Wong wrote:
> Jeremy Evans <code@jeremyevans.net> wrote:
> > On 03/10 09:19, Eric Wong wrote:
> > > Jeremy Evans <code@jeremyevans.net> wrote:
> > > > - if pid = fork
> > > > - @workers[pid] = worker
> > > > - worker.atfork_parent
> > > > +
> > > > + pid = if @worker_exec
> > > > + worker_spawn(worker)
> > > > else
> > > > - after_fork_internal
> > > > - worker_loop(worker)
> > > > - exit
> > > > + fork do
> > > > + after_fork_internal
> > > > + worker_loop(worker)
> > > > + exit
> > > > + end
> > >
> > > I prefer to avoid the block with fork. The block deepens the
> > > stack for the running app, so it can affect GC efficiency.
> > >
> > > Can be fixed in a separate patch...
> >
> > That makes sense. If you would like me to send a separate patch to fix
> > it, I can do that.
>
> Yes, please.
>
> Not sure if we should automate the stack depth test...
> I resisted it in the past since it might be too fragile
> w.r.t changes to Ruby (even using "unicorn" via the
> RubyGems-generated wrapper deepens it by 2).
Here's a patch to fix the stack depth issue:
From aa4914846a0870e5b01530a47d6dbfe09aeb39ce Mon Sep 17 00:00:00 2001
From: Jeremy Evans <code@jeremyevans.net>
Date: Mon, 13 Mar 2017 08:28:54 -0700
Subject: [PATCH] Don't pass a block for fork when forking workers
This reduces the stack depth, making GC more efficient.
---
lib/unicorn/http_server.rb | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/lib/unicorn/http_server.rb b/lib/unicorn/http_server.rb
index a5bd2c4..023df10 100644
--- a/lib/unicorn/http_server.rb
+++ b/lib/unicorn/http_server.rb
@@ -541,14 +541,12 @@ def spawn_missing_workers
worker = Unicorn::Worker.new(worker_nr)
before_fork.call(self, worker)
- pid = if @worker_exec
- worker_spawn(worker)
- else
- fork do
- after_fork_internal
- worker_loop(worker)
- exit
- end
+ pid = @worker_exec ? worker_spawn(worker) : fork
+
+ unless pid
+ after_fork_internal
+ worker_loop(worker)
+ exit
end
@workers[pid] = worker
--
2.11.0
^ permalink raw reply related [relevance 7%]
Results 1-3 of 3 | reverse | options above
-- pct% links below jump to the message on this page, permalinks otherwise --
2017-03-08 18:44 [PATCH] Add worker_exec configuration option Jeremy Evans
2017-03-08 20:02 ` Eric Wong
2017-03-09 19:41 ` [PATCH] Add worker_exec configuration option V2 Jeremy Evans
2017-03-10 21:19 ` Eric Wong
2017-03-11 5:26 ` Jeremy Evans
2017-03-11 7:18 ` Eric Wong
2017-03-13 15:32 7% ` Jeremy Evans
2017-03-24 0:28 5% [ANN] unicorn 5.3.0.pre1 - Rack HTTP server for fast clients and Unix Eric Wong
2017-04-01 8:08 4% [ANN] unicorn 5.3.0 " Eric Wong
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