* [ANN] yahns 1.16.0 -_- sleepy app server for Ruby
@ 2018-08-06 1:32 4% Eric Wong
0 siblings, 0 replies; 2+ results
From: Eric Wong @ 2018-08-06 1:32 UTC (permalink / raw)
To: ruby-talk, yahns-public
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/README
* https://yhbt.net/yahns/NEWS.atom.xml (supported by most "RSS" readers)
* 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:
yahns 1.16.0
This release fixes warnings for users combining Rack::Deflater
with HTTPS support:
https://yhbt.net/yahns-public/20180714005630.11812-1-e@80x24.org/
yahns-rackup(1) users may not specify "-O listen=inherit"
when spawning from systemd. The "listen" directive may
be omitted entirely from the yahns-config(5) files.
A few other cleanups and nothing interesting, otherwise.
20 yawn-worthy changes since v1.15.0 (2017-03-23):
config: more descriptive variable name
proxy_pass: comment explaining what rack.hijack calls
USR2 upgrades may use Process.spawn for vfork
avoid Thread#[] and Thread#[]= across threads
gemspec: declare Ruby 2.0+ dependency, here
test_bin: SO_KEEPALIVE value only needs to be true
rackup_handler: remove unnecessary branch
test_bin: use RbConfig.ruby for non-standard names
allow omitting specifying socket name when inheriting listen socket
server: fix incomplete comment about SSLContext#setup
test_rack_env: additional test for Rack environment
test: allow setting TAIL env to watch error logs
fix some unused variables
tests: thread-safety fixes
test/server_helper: describe reason for termination
test/test_ssl: set SSLContext#security_level=0
doc: https:// URLs instead of git://
http_client: clear backtrace on "wrong version number" in OpenSSL
openssl_client: do not attempt writes after SystemCallError
use IO#pread if available in Ruby 2.5
*ZZZZZZ*
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.
^ permalink raw reply [relevance 4%]
* [PATCH] test: allow setting TAIL env to watch error logs
@ 2017-04-27 0:54 7% Eric Wong
0 siblings, 0 replies; 2+ results
From: Eric Wong @ 2017-04-27 0:54 UTC (permalink / raw)
To: yahns-public
Setting TAIL=1 will automatically use the portable "tail -f".
This can be helpful in diagnosing failures during development.
GNU tail users may set TAIL="tail -F" (or "gtail -F")
to use the "-F" ("--follow=name") option to track changes
across SIGUSR1 log reopening testing.
---
test/server_helper.rb | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/test/server_helper.rb b/test/server_helper.rb
index cb11e79..9ef15c6 100644
--- a/test/server_helper.rb
+++ b/test/server_helper.rb
@@ -65,12 +65,29 @@ def server_helper_teardown
@srv.close if defined?(@srv) && !@srv.closed?
@ru.close! if defined?(@ru) && @ru
check_err if defined?(@err)
+ Timeout.timeout(30) do
+ Process.kill(:TERM, @tail_pid)
+ Process.waitpid(@tail_pid)
+ end if @tail_pid
end
def server_helper_setup
@srv = TCPServer.new(ENV["TEST_HOST"] || "127.0.0.1", 0)
@err = tmpfile(%w(srv .err))
@ru = nil
+ @tail_pid = nil
+ case tail = ENV['TAIL']
+ when '1'
+ tail = 'tail -f' # POSIX
+ when nil, '0'
+ tail = nil
+ # else : allow users to specify 'tail -F' or 'gtail -F' for GNU
+ end
+ if tail
+ cmd = tail.split(/\s+/)
+ cmd << @err.path
+ @tail_pid = spawn(*cmd)
+ end
end
def mkserver(cfg, srv = @srv)
--
EW
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2017-04-27 0:54 7% [PATCH] test: allow setting TAIL env to watch error logs Eric Wong
2018-08-06 1:32 4% [ANN] yahns 1.16.0 -_- sleepy app server for Ruby Eric Wong
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