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23x79 looks better in a terminal, but the Ruby 1.9
OptionParser output adds a little more whitespace
requiring 24x80 output, which is still fine...
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Hopefully this fixes some random test failures I've
been experiencing...
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Ensure the output fits in a standard ANSI terminal so it's easy
to read for all users regardless of what interface they're
working from.
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Since not all rackup command-line options can be supported by
Unicorn, disable this gross hack to avoid potentially
unpredictable or undefined behavior. config.ru will not be able
to specify the config file for unicorn-specific options; but the
unicorn-specific config files themselves will be allowed to
override the default config.ru location.
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This was accidentally left in there during 1.9
compatibility testing.
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Just use globs for *.o/*.so/*.bundle files since there's never
any reason they should be checked into version control.
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Avoid conflicting with existing (and future) Mongrel installs in
case either changes. Of course, this also allows us more
freedom to experiment and break the API if needed...
However, I'm only planning on making minor changes to
remove the amount of C code we have to maintain and
possibly some minor performance improvements.
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This allows Unicorn to be constantly started in symlink
paths such as the ones Capistrano creates
(e.g. "/u/apps/$app/current")
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People can screw config files up, it's not my fault
if they do, but they do... Don't let the original
process get wedged if we can help it..
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Apparently the at_exit handlers were not triggering for an
execed process.
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Add a install-test for doing a mock install with private http11
and bin/unicorn and appropriate PATH/RUBYLIB env.
Also add a normal install target so we can just type
"make install" and just be done with a regular
installation (and it'll revert files if using git).
I use the following local.mk to augment my GNUmakefile. It
allows me to run "make -j full-test" and run both 1.8 and 1.9
tests in parallel.
--------------------------- 8< -------------------------
DLEXT := so
rack_ver := 0.9.1
ifeq ($(r19),)
ruby := $(HOME)/bin/ruby
RUBYLIB := $(HOME)/lib/ruby/gems/1.8/gems/rack-$(rack_ver)/lib
else
export PATH := $(HOME)/ruby-1.9/bin:$(PATH)
ruby := $(HOME)/ruby-1.9/bin/ruby
RUBYLIB := $(HOME)/ruby-1.9/lib/ruby/gems/1.9.1/gems/rack-$(rack_ver)/lib
endif
SHELL := /bin/bash -e -o pipefail
full-test: test-18 test-19
test-18:
$(MAKE) test 2>&1 | sed -u -e 's!^!1.8 !'
test-19:
$(MAKE) test r19=1 2>&1 | sed -u -e 's!^!1.9 !'
--------------------------- 8< -------------------------
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This adds a bunch of execution tests that require the "unicorn"
binary to be in PATH as well as rack being directly
"require"-able ("rubygems" will not be loaded for you). The
tester is responsible for setting up PATH and RUBYLIB
appropriately.
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The Configurator includes error checking and opens the way for
better reloading/error-checking abilities.
This also renames many of the config settings with something
nginx-like to minimize the learning/setup curve since nginx is
the only recommended reverse-proxy for this.
s/pid_file/pid/
=> blech!, more confusing :<
s/listen_backlog/backlog/
=> maybe more confusing to some, or less...
s/nr_workers/worker_processes/
=> less confusing to non-AWKers for sure
s/hot_config_file/config_file/
=> the config file is now general purpose,
not just hot reloads
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This will make setting some of this easier to deal
with in the executable.
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This variable is not guaranteed to be updated outside
of an interactive POSIX-ish shell.
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We don't need these dependencies slowing down load times
on our tests..
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Reset connections can also return EPIPE under Linux, not just
ECONNRESET; so be sure to trap that error, too.
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Prevent the GC from trying to close it (and hitting the wrong
descriptor) when @random is reopened for running tests.
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The Rack spec requires it. So we'll just set it to "localhost"
if we're dealing with HTTP/1.0 clients that omit the "Host:"
header.
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It was mistakenly set to false before, which breaks Rack::Lint.
As the Rack SPEC doesn't require it, don't bother setting it at
all and save a few bytes of memory.
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This also fixes a subtle bug in header generation when the +$,+
($OFS) variable is defined to something other than nil or ""
I'm really wondering what kind of drugs I was on (or _not_ on)
when I modified some of this from the Mongrel source.
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Rack spec specifies #each must be defined, not #each_pair.
Hash#each_pair was marginally faster in Ruby 1.8, but in Ruby
1.9.1, Hash#each and Hash#each_pair are the same function.
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Since dying children can be a sign that something is wrong with
the app itself, continue to use the 1 wakeup/sec throttle and
don't wake the master immediately.
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And avoid repeatedly sending kill -0 to each worker,
that nugget of stupid probably slipped in while I was
testing something...
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Ruby 1.9 Tempfile objects can be passed directly to File.rename
(instead of the pathname). This doesn't work in 1.8, so always
just pass the pathname to File.rename.
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Tempfile reuse was over-engineered and the problem was not
nearly as big a problem as initially thought.
Additionally, it could lead to a subtle bug in an applications
that link(2)s or rename(2)s the temporary file to a permanent
location _without_ closing it after the request is done.
Applications that suffer from the problem of directory bloat are
still free to modify ENV['TMPDIR'] to influence the creation of
Tempfiles.
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unused_port is more reliable as it actually tries to bind
a port and retries if it fails. This is also safe across
parallel unicorn tests running in different directories.
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This is to make things consistent with the other logging
when adding listeners
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This can be overridden in {after,before}_fork hooks
of course; but makes things look a little nicer.
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Add a make task for updating it, too.
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This allows changing certain variables without restarting the
master process or code reload. Currently, only the following
variables are supported: @timeout, @nr_workers, @hot_config_file.
Any other config changes will/should require re-executing the
running binary. This config file is run through eval(); so it
really users plenty of rope to hang themselves with. Of course,
it requires valid Ruby syntax:
------------------------- 8< ------------------------
@nr_workers = 8
@timeout = 15
@hot_config_file = "/var/tmp/new_hot_config_file"
------------------------- 8< ------------------------
Lowering the timeout will trigger all existing workers to be
gracefully stopped and restarted.
This file is loaded at startup, and overrides any config
settings that may already be loaded.
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This controls the backlog argument to the listen(2) system call.
See your operating system documentation for listen(2) on the
specifics of this option.
The default is 1024, which is the same as Mongrel. 5 is the
default for Ruby TCPServer and UNIXServer; and in some case it
can be better where failover to a different machine/cluster
is properly configured.
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* IO.pipe.map { } looks moronic, especially without
doing more inside it (like setting set_cloexec).
* No need to sleep when we have an unhandled master
loop exception (save for paranoia).
* client.class == TCPSocket is slightly more expensive
than TCPSocket === client
* nilify client to avoid GC from trying to close it
* Process.kill => kill
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These files are unlinked immediately anyways, so
it's wasteful to give them a long name...
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Don't rely on FD_CLOEXEC if we don't have to since it may not be
completely portable. Just explicitly close things (pipes,
tempfiles) we don't want to pass on to our children when
forking.
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This makes it possible to bind per-process listener ports for
easier debugging. One of my biggest gripes about other prefork
webservers is that strace-ing the correct process for debugging
is difficult. This makes it possible for each worker to bind to
a unique port or UNIX socket independent of the other workers.
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Workers have no business knowing these things...
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Daemonization only happens once at initial startup and is less
intrusive than traditional daemonize routines: we do not chdir,
set umask, or redirect/close STDOUT/STDERR since those are
doable via other config options with Unicorn (and the Unicorn
"config file" is just Ruby).
STDIN has no business being open on a daemon (and can be
dangerous to close if using certain buggy third-party libs).
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If we're running in the foreground and don't care for process
manglement, then there's no need to start a pipe we won't need.
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Like nginx, we'll replace the existing "pid_file" with
"pid_file.oldbin" when executing a new binary. We'll also
refuse to reexecute a new binary if the ".oldbin" pid file
already exists and points to a valid PID.
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