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From: Eric Wong <e@80x24.org>
To: ruby-talk@ruby-lang.org, unicorn-public@bogomips.org
Cc: Jeremy Evans <code@jeremyevans.net>,
	Simon Eskildsen <simon.eskildsen@shopify.com>,
	Dylan Thacker-Smith <dylan.smith@shopify.com>
Subject: [ANN] unicorn 5.3.0 - Rack HTTP server for fast clients and Unix
Date: Sat, 1 Apr 2017 08:08:05 +0000	[thread overview]
Message-ID: <20170401080805.GA11218@dcvr> (raw)

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/
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* nntp://news.public-inbox.org/inbox.comp.lang.ruby.unicorn


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:


This also led to FreeBSD and OpenBSD portability improvements in
one of our dependencies, raindrops:


Jeremy Evans contributed several new features.  First he
implemented after_worker_exit to aid debugging:


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:


Additionally, workers may run in a completely different VM space
(nullifying preload_app and any CoW savings) with the new
worker_exec option:


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.

             reply	other threads:[~2017-04-01  8:08 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-01  8:08 Eric Wong [this message]
2017-04-02  2:14 ` [ANN] unicorn 5.3.0 - Rack HTTP server for fast clients and Unix Eric Wong
2017-10-03 19:15 ` [ANN] unicorn 5.3.1 " Eric Wong

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