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We depend on the just-released Unicorn 0.94.0 for the fixed
trailer handling. As with `unicorn', the `rainbows' executable
now sets and respects ENV["RACK_ENV"]. Also small fixes and
cleanups including better FreeBSD 7.2 compatibility and
less likely to over-aggressively kill slow/idle workers
when a very low timeout is set.
Eric Wong (20):
rev: split out heartbeat class
bump Unicorn dependency to (consistently) pass tests
tests: avoid single backquote in echo
event_machine: avoid slurping when proxying
tests: make timeout tests reliable under 1.9
thread_pool: comment for potential SMP issue under 1.9
Allow 'use "model"' as a string as well as symbol
Rev model is the only user of deferred_bodies
ev_core: use Tempfile instead of Unicorn::Util::tmpio
ev_core: ensure quit is triggered on all errors
rainbows: set and use process-wide ENV["RACK_ENV"]
http_server: add one second to any requested timeout
thread_pool: update fchmod heartbeat every second
t0004: tighten up timeout test
ev_core: remove Tempfile usage once again
cleanup: remove unused t????.ru test files
tests: staggered trailer upload test
ensure RACK_ENV is inherited from the parent env
t0100: more precise `expr` usage
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Basic single-threaded EventMachine support is now included. It
supports async_synatra[1] via the "async.callback" Rack
environment[2]. For EventMachine, we rely on the updated
attach/watch API in EventMachine 0.12.10.
As Revactor 0.1.5 is now available, our Revactor support now
depends on it as it adds the ability to listen on UNIX domain
sockets.
For developers/QA folks, the integration tests are completely
revamped for easier maintenance when new concurrency models are
introduced and should also produce TAP-compliant output. The
test suite remains highly parallelizable using GNU make.
There are immediate plans to expand support for both Rev and
EventMachine to support use with threaded application dispatch.
Eric Wong (41):
rev: remove Revactor-specific workaround
README: change ordering of concurrency model listing
tests: more correct HTTP/0.9 test
test-lib: avoid stalling due to bad FIFO handling
rev: fix static file responses under HTTP/0.9
add news bodies to site NEWS.atom.xml
tests: avoid needlessly remaking "rainbows"
initial EventMachine support
tests: hopefully fix stalls in input trailer tests
tests: avoid race condition in reopen logs test
tests: prefer "RUBY" to lowercased "ruby"
tests: common setup and wait_start functions
tests: add a TAP producer shell library
tests: port all existing tests to TAP library
tests: remove symlinks and small files, use Make
t9000: bail if run with an unsupported/pointless model
tests: allow "make $model" to run tests for that model
rev: spell ECONNABORTED correctly
rev/evma: move common code for event models into ev_core
ev_core: do not drop deferred bodies on graceful quits
eventmachine: get basic tests working
rev: do not File.expand_path on result of body.to_path
eventmachine 0.12.8 passes all tests
tests: make large file memory tests more reliable
eventmachine: require EM 0.12.10
update gem dependencies in comments/local.mk.sample
rev: enforce Rev::VERSION >= 0.3.0
eventmachine: add async_sinatra support
tests: only load Revactor tests under 1.9.1
tests: gracefully exit if EventMachine is not available
tests: error out if socat + curl aren't reachable
thread*: fix MRI 1.8.6 compatibility
local.mk.sample: cleanups and minor reorg
eventmachine: remove unnecessary ivar assignment
eventmachine: document our support of "async_synatra"
doc: Update TODO and README
tests: generate all dependencies atomically
app_pool: update RDoc
test-lib: DWIM handling of temp UNIX sockets
revactor: require 0.1.5, remove 0.1.4 workarounds
gemspec: bump up Unicorn dep version to 0.93.4
[1] http://github.com/raggi/async_sinatra
[2] this is not 100% Rack::Lint compatible, but we'll let it
slide since there are already folks depending on
the async_sinatra gem
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The major feature of this release is the new DeferredResponse
middleware for the Rev-based concurrency model. It should be
transparently compatible with non-Rev models, as well. As a
pleasant side effect, this change also allows large files to be
streamed to the client with Rev as the socket becomes writable
instead of slurping the entire file into an IO::Buffer first.
Bugfixes to graceful shutdowns support for all concurrency
models. The Rev-based model also gets a working heartbeat
mechanism (oops!) and fixed HTTP/1.1 pipelining support.
Eric Wong (37):
app_pool: note it being currently broken with Revactor
Revactor tests can sleep more easily
tests: sleep.ru handles "Expect: 100-continue"
Fix graceful shutdown handling of Thread* models harder
DRY setting of rack.multithread
test-lib: dbgcat adds headers with key name
use timeout correctly to join threads on SIGQUIT
Rev: simplification to error handling
tests: sleep.ru slurps rack.input stream
refactor graceful shutdowns again, harder
tests: introduce require_for_model function
tests: add unbuffered tee(1)-like helper
tests: rack.input trailer tests for all models
tests: fix issues with non-portable shell constructs
tests: fix random_blob dependency
tests: factor out a common parser error "library"
tests: DRY setting of the "model" environment var
tests: DRY Ruby requires based on model
test-lib: quiet down pipefail error message
tests: DRY require tests for Rev/Revactor
rev: handle fully-buffered, pipelined requests
rev: avoid stack overflow through pipelining
tests: common basic HTTP tests for all models
tests: rack.input hammer concurrency testing
tests: for log reopening for all concurrency models
http_response: filter out X-Rainbows-* headers
rev: fix heartbeat timeouts
revactor: switch to a 1 second heartbeat
rev: async response bodies with DevFdResponse middleware
tests: more reliable error checking
tests: DWIM FIFO creation
tests: predictable and simpler tempfile management
rev: AsyncResponse => DeferredResponse API cleanup
rev: update documentation for this model
TUNING: update documentation notes
TODO: update with new items
local.mk.sample: sync with BDFL's version
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This release adds preliminary Rev support for network
concurrency under Ruby 1.8 and Ruby 1.9. There are caveats to
this model and reading the RDoc for Rainbows::Rev is
recommended.
Rainbows::AppPool Rack middleware is now available to limit
application concurrency on a per-process basis independently of
network concurrency. See the RDoc for this class for further
details.
Per-client timeouts have been removed, see
http://mid.gmane.org/20091013062602.GA13128@dcvr.yhbt.net
for the reasoning.
Rack environment changes:
* "rack.multithread" is now only true for models with "Thread"
in their name. Enabling thread-safe (but not reentrant) code
may actually be harmful for Revactor.
* "rainbows.model" is now exposed so the application can easily
figure out which network concurrency model is in use.
Bugfixes include better shutdown and error handling for all
existing models, OpenBSD compatibility for the per-process
heartbeat (same as found in unicorn v0.93.3).
Eric Wong (53):
add SIGNALS doc to RDoc
SIGNALS: add Rainbows!-specific notes
doc: better "Rainbows!" RDoc examples and linkage
tests: generate random_blob once for all tests
tests: move trash files to their own trash/ directory
t0000: basic test includes keepalive + pipelining
tests: simplify temporary file management
tests: add dbgcat() utility method
fchmod heartbeat flips between 0/1
tests: add revactor pipelining/keepalive test
thread_spawn: trap EAGAIN on accept_nonblock
thread_spawn: more robust loop
thread_spawn: non-blocking accept() shouldn't EINTR
tests: enable pipefail shell option if possible
README for test suite
tests: TEST_OPTS => SH_TEST_OPTS
tests: update TRACER examples in makefile
tests: create a bad exit code by default
thread_spawn: clean up nuking of timed-out threads
factor out common listen loop error handling
graceful exit on trap TypeError from IO.select
expand and share init_worker_process
revactor: break on EBADF in the accepting actors
revactor: cleanups and remove redundancy
No need to be halving timeout, already done for us
revactor: graceful death of keepalive clients
revactor: continue fchmod beat in graceful exit
cleanup thread models, threads no longer time out
revactor: fix graceful shutdown timeouts
Fix graceful shutdowns for threaded models
SIGINT/SIGTERM shuts down instantly in workers
tests: check for common exceptions with "Error"
DEPLOY: update with notes on DoS potential
tests: add reopen logs test for revactor
vs Unicorn: use diagrams for concurrency models
vs Unicorn: fix wording to be consistent with diagrams
vs Unicorn: fix copy+paste errors and grammar fail
README: alter reply conventions for the mailing list
preliminary Rev support
local.mk.sample: use ksh93 as default $(SHELL)
rack.multithread is only true for Thread* models
Rev: general module documentation + caveats
Rev: fix error handling for parser errors
t3003: set executable bit
documentation updates (mostly on network models)
rack: expose "rainbows.model" in Rack environment
tests: enforce rack.multithread and rainbows.model
README: update URLs
README: update with Rev model caveats
Add Rainbows::AppPool Rack middleware
t4003: chmod +x
local.mk.sample: use rev 0.3.1 instead
README: link to AppPool and extra note about Rev model
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Fixed Ruby 1.8 support (and all 1.9 systems without Revactor).
Process-wide timeout handling for the ThreadSpawn concurrency
model should now work properly. Small cleanups everywhere.
Eric Wong (16):
Rakefile: add publish_news target
Fix NEWS generation on single-paragraph tag messages
README: move RDoc links down to fix gem description
README: add install instructions
summary: s/slow apps/sleepy apps/g
Avoid naming names in LICENSE/README files
rainbows/base: cleanup constant include
tests: quiet down bin installation
Add top-level "test" target for make
local.mk.sample: sync to my current version
tests: allow "make V=2" to set TEST_OPTS += -x
cleanup temporary file usage in tests
local.mk.sample: fix revactor dependency
Thread* models: cleanup timeout management
thread_spawn: fix timeout leading to worker death
less error-prone timeouts for Thread models
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Not using the Unicorn version number with this
since it's not remotely close to Unicorn in stability.
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No tests yet, but the old "gossamer" and "rainbows" branches
seem to be basically working.
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