* [ANN] yahns 1.17.0 -_- sleepy app server for Ruby
@ 2019-04-22 7:37 4% Eric Wong
0 siblings, 0 replies; 2+ results
From: Eric Wong @ 2019-04-22 7:37 UTC (permalink / raw)
To: ruby-talk, yahns-public
Earth day release of a server designed for low energy use!
A Free Software, multi-threaded, non-blocking network
application server designed for low _idle_ power consumption.
It is primarily optimized for applications with occasional users
which see little or no traffic. yahns currently hosts Rack/HTTP
applications, but may eventually support other application
types. Unlike some existing servers, yahns is extremely
sensitive to fatal bugs in the applications it hosts.
* git clone https://yhbt.net/yahns.git
* https://yhbt.net/yahns.git/about/
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* we only accept plain-text email yahns-public@yhbt.net
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* nntp://news.public-inbox.org/inbox.comp.lang.ruby.yahns
lrg nabgure ubeevoyl-anzrq freire :>
Changes:
This releases includes a few kqueue-related bugfixes from
Lin Jen-Shin <godfat@godfat.org>. There's also some
shutdown_timeout-related bugfixes and some cleanups to
reduce dependencies on kgio.
extras/exec_cgi and extras/autoindex both got some minor
updates; the latter of which defaults to a dark scheme to save
power on OLED and CRT displays (it is Earth Day, after all :>)
Eric Wong (25):
doc: fix git URLs in README and HACKING
http_client: do not warn on do_pread overreach
remove IO#close_on_exec= calls
yahns/worker: shrink pipe under Linux
test/test_extras_exec_cgi.rb: improve test reliability
extras/exec_cgi: remove kgio dependency
extras/exec_cgi: update copyright year and use SPDX
extras/exec_cgi: @body_tip is always set
extras/exec_cgi: support Process.spawn options (e.g. RLIMIT_*)
server_mp: favor "Kernel#select" instead of "IO.select"
server_mp: remove redundant srand call
extras/exec_cgi: remove unecessary .freeze calls
server: respect shutdown_timeout
server: extra shutdown timeout debugging
wbuf: use IO#write directly in Ruby 2.5+ for writev
worker: rely on F_SETPIPE_SZ to set mininum value
remove calls to kgio_wait_* able
do not shutdown until listeners are all stopped
README: remove SMTP-based subscription info
sigevent_*: fixup non-eventfd path
README: note HTTPS support for HTTP/1.1
extras/autoindex: use dark colors by default
doc: update homepage to point to cgit install
doc: update wording to avoid "mailing list"
doc: remove inaccurate comment about "GNU-ism"
Lin Jen-Shin (2):
Add QueueQuitter#closed? to queue_quitter_pipe.rb
@srv.shutdown could raise Errno::ENOTCONN
Please note the disclaimer:
yahns is extremely sensitive to fatal bugs in the apps it hosts. There
is no (and never will be) any built-in "watchdog"-type feature to kill
stuck processes/threads. Each yahns process may be handling thousands
of clients; unexpectedly killing the process will abort _all_ of those
connections. Lives may be lost!
yahns hackers are not responsible for your application/library bugs.
Use an application server which is tolerant of buggy applications
if you cannot be bothered to fix all your fatal bugs.
*zzzzzzz*
^ permalink raw reply [relevance 4%]
* [PATCH] yahns/worker: shrink pipe under Linux
@ 2018-12-13 10:10 7% Eric Wong
0 siblings, 0 replies; 2+ results
From: Eric Wong @ 2018-12-13 10:10 UTC (permalink / raw)
To: yahns-public
We use eventfd whereever possible, but workers still require
a pipe to the parent for death detection.
---
lib/yahns/worker.rb | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/lib/yahns/worker.rb b/lib/yahns/worker.rb
index 9192803..1b65e3d 100644
--- a/lib/yahns/worker.rb
+++ b/lib/yahns/worker.rb
@@ -9,6 +9,14 @@ class Yahns::Worker # :nodoc:
def initialize(nr)
@nr = nr
@to_io, @wr = Kgio::Pipe.new
+
+ # Seems it's only alpha with a != 4K page size on Linux
+ begin
+ # F_SETPIPE_SZ = 1031, PAGE_SIZE = 4096
+ @to_io.fcntl(1031, 4096)
+ rescue Errno::EINVAL
+ # old kernel
+ end if RUBY_PLATFORM =~ /\blinux\b/ && RUBY_PLATFORM !~ /alpha/
end
def atfork_child
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2018-12-13 10:10 7% [PATCH] yahns/worker: shrink pipe under Linux Eric Wong
2019-04-22 7:37 4% [ANN] yahns 1.17.0 -_- sleepy app server for Ruby Eric Wong
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