RubyForge: Mongrel: File Release Notes and Changelog

Notes:
Release Name: 4.4.0

Notes:
unicorn 4.4.0 - minor updates

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.

* http://unicorn.bogomips.org/
* mongrel-unicorn@rubyforge.org
* git://bogomips.org/unicorn.git
* http://unicorn.bogomips.org/NEWS.atom.xml

Changes:

Non-regular files are no longer reopened on SIGUSR1.  This
allows users to specify FIFOs as log destinations.

TCP_NOPUSH/TCP_CORK is no longer set/unset by default.  Use
:tcp_nopush explicitly with the "listen" directive if you wish
to enable TCP_NOPUSH/TCP_CORK.

Listen sockets are now bound _after_ loading the application for
preload_app(true) users.  This prevents load balancers from
sending traffic to an application server while the application
is still loading.

There are also minor test suite cleanups.



Changes:
 GIT-VERSION-GEN                                    |   2 +-
 GNUmakefile                                        |  31 +--
 lib/unicorn.rb                                     |   2 +-
 lib/unicorn/const.rb                               |   2 +-
 lib/unicorn/http_server.rb                         |  13 +-
 lib/unicorn/socket_helper.rb                       |  14 +-
 lib/unicorn/util.rb                                |   1 +
 script/isolate_for_tests                           |  18 --
 t/listener_names.ru                                |   4 +
 t/rails3-app/.gitignore                            |   4 -
 t/rails3-app/Gemfile                               |  26 --
 t/rails3-app/Rakefile                              |  10 -
 .../app/controllers/application_controller.rb      |   4 -
 t/rails3-app/app/helpers/application_helper.rb     |   2 -
 .../app/views/layouts/application.html.erb         |  14 -
 t/rails3-app/config.ru                             |   4 -
 t/rails3-app/config/application.rb                 |  46 ----
 t/rails3-app/config/boot.rb                        |   6 -
 t/rails3-app/config/database.yml                   |  22 --
 t/rails3-app/config/environment.rb                 |   5 -
 t/rails3-app/config/environments/development.rb    |  19 --
 t/rails3-app/config/environments/production.rb     |  42 ---
 t/rails3-app/config/environments/test.rb           |  32 ---
 .../config/initializers/backtrace_silencers.rb     |   7 -
 t/rails3-app/config/initializers/inflections.rb    |  10 -
 t/rails3-app/config/initializers/mime_types.rb     |   5 -
 t/rails3-app/config/initializers/secret_token.rb   |   7 -
 t/rails3-app/config/initializers/session_store.rb  |   8 -
 t/rails3-app/config/locales/en.yml                 |   5 -
 t/rails3-app/config/routes.rb                      |  58 -----
 t/rails3-app/db/seeds.rb                           |   7 -
 t/rails3-app/doc/README_FOR_APP                    |   2 -
 t/rails3-app/public/404.html                       |   1 -
 t/rails3-app/public/500.html                       |   1 -
 t/rails3-app/public/x.txt                          |   1 -
 t/rails3-app/script/rails                          |   9 -
 t/rails3-app/test/performance/browsing_test.rb     |   9 -
 t/rails3-app/test/test_helper.rb                   |  13 -
 t/t0022-listener_names-preload_app.sh              |  32 +++
 t/t0300-rails3-basic.sh                            |  28 --
 t/t0301-rails3-missing-config-ru.sh                |  33 ---
 t/t0302-rails3-alt-working_directory.sh            |  32 ---
 t/t0303-rails3-alt-working_directory_config.ru.sh  |  56 ----
 ...04-rails3-alt-working_directory_no_embed_cli.sh |  52 ----
 t/test-rails3.sh                                   |  27 --
 test/exec/test_exec.rb                             | 158 ++++++------
 test/rails/app-1.2.3/.gitignore                    |   2 -
 test/rails/app-1.2.3/Rakefile                      |   7 -
 .../rails/app-1.2.3/app/controllers/application.rb |   6 -
 .../app-1.2.3/app/controllers/foo_controller.rb    |  36 ---
 .../app-1.2.3/app/helpers/application_helper.rb    |   4 -
 test/rails/app-1.2.3/config/boot.rb                |  11 -
 test/rails/app-1.2.3/config/database.yml           |  12 -
 test/rails/app-1.2.3/config/environment.rb         |  13 -
 .../app-1.2.3/config/environments/development.rb   |   9 -
 .../app-1.2.3/config/environments/production.rb    |   5 -
 test/rails/app-1.2.3/config/routes.rb              |   6 -
 test/rails/app-1.2.3/log/.gitignore                |   1 -
 test/rails/app-1.2.3/public/404.html               |   1 -
 test/rails/app-1.2.3/public/500.html               |   1 -
 test/rails/app-2.0.2/.gitignore                    |   2 -
 test/rails/app-2.0.2/Rakefile                      |   7 -
 .../rails/app-2.0.2/app/controllers/application.rb |   4 -
 .../app-2.0.2/app/controllers/foo_controller.rb    |  36 ---
 .../app-2.0.2/app/helpers/application_helper.rb    |   4 -
 test/rails/app-2.0.2/config/boot.rb                |  11 -
 test/rails/app-2.0.2/config/database.yml           |  12 -
 test/rails/app-2.0.2/config/environment.rb         |  17 --
 .../app-2.0.2/config/environments/development.rb   |   8 -
 .../app-2.0.2/config/environments/production.rb    |   5 -
 test/rails/app-2.0.2/config/routes.rb              |   6 -
 test/rails/app-2.0.2/log/.gitignore                |   1 -
 test/rails/app-2.0.2/public/404.html               |   1 -
 test/rails/app-2.0.2/public/500.html               |   1 -
 test/rails/app-2.1.2/.gitignore                    |   2 -
 test/rails/app-2.1.2/Rakefile                      |   7 -
 .../rails/app-2.1.2/app/controllers/application.rb |   4 -
 .../app-2.1.2/app/controllers/foo_controller.rb    |  36 ---
 .../app-2.1.2/app/helpers/application_helper.rb    |   4 -
 test/rails/app-2.1.2/config/boot.rb                | 111 --------
 test/rails/app-2.1.2/config/database.yml           |  12 -
 test/rails/app-2.1.2/config/environment.rb         |  17 --
 .../app-2.1.2/config/environments/development.rb   |   7 -
 .../app-2.1.2/config/environments/production.rb    |   5 -
 test/rails/app-2.1.2/config/routes.rb              |   6 -
 test/rails/app-2.1.2/log/.gitignore                |   1 -
 test/rails/app-2.1.2/public/404.html               |   1 -
 test/rails/app-2.1.2/public/500.html               |   1 -
 test/rails/app-2.2.2/.gitignore                    |   2 -
 test/rails/app-2.2.2/Rakefile                      |   7 -
 .../rails/app-2.2.2/app/controllers/application.rb |   4 -
 .../app-2.2.2/app/controllers/foo_controller.rb    |  36 ---
 .../app-2.2.2/app/helpers/application_helper.rb    |   4 -
 test/rails/app-2.2.2/config/boot.rb                | 111 --------
 test/rails/app-2.2.2/config/database.yml           |  12 -
 test/rails/app-2.2.2/config/environment.rb         |  17 --
 .../app-2.2.2/config/environments/development.rb   |   7 -
 .../app-2.2.2/config/environments/production.rb    |   5 -
 test/rails/app-2.2.2/config/routes.rb              |   6 -
 test/rails/app-2.2.2/log/.gitignore                |   1 -
 test/rails/app-2.2.2/public/404.html               |   1 -
 test/rails/app-2.2.2/public/500.html               |   1 -
 test/rails/test_rails.rb                           | 287 ---------------------
 test/unit/test_util.rb                             |  15 +-
 104 files changed, 140 insertions(+), 1703 deletions(-)

commit f0a31e43676f59762d5bf53707cd8cc21fed0727
Author: Eric Wong 
Date:   Wed Oct 10 21:33:46 2012 +0000

    unicorn 4.4.0 - minor updates
    
    Non-regular files are no longer reopened on SIGUSR1.  This
    allows users to specify FIFOs as log destinations.
    
    TCP_NOPUSH/TCP_CORK is no longer set/unset by default.  Use
    :tcp_nopush explicitly with the "listen" directive if you wish
    to enable TCP_NOPUSH/TCP_CORK.
    
    Listen sockets are now bound _after_ loading the application for
    preload_app(true) users.  This prevents load balancers from
    sending traffic to an application server while the application
    is still loading.
    
    There are also minor test suite cleanups.

commit 032791b9a367f67febbe7534f6ea4cac127e7897
Author: Eric Wong 
Date:   Mon Oct 1 21:18:02 2012 -0700

    util: only consider regular files as logs
    
    If a user specifies a non-regular file for stderr_path or
    stdout_path, we should not attempt to reopen or chown
    it.  This should also allow users to specify FIFOs as log
    destinations.

commit 5acf5522295c947d3118926d1a1077007f615de9
Author: Eric Wong 
Date:   Mon Aug 6 13:34:34 2012 -0700

    avoid assert_nothing_raised in unit tests
    
    It's better to show errors and backtraces when stuff
    breaks

commit 7b107d66e84ad2e958d5574cb00770265dd117c2
Author: Eric Wong 
Date:   Mon Aug 6 20:15:46 2012 +0000

    do not touch TCP_NOPUSH/TCP_CORK at all by default
    
    On a certain FreeBSD 8.1 installation, explicitly setting
    TCP_NOPUSH to zero (off) can cause EADDRNOTAVAIL errors and also
    resets the listen backlog to 5.  Enabling TCP_NOPUSH explicitly
    did not exhibit this issue for the user who (privately) reported
    this issue.
    
    To be on the safe side, we won't set/unset TCP_NOPUSH/TCP_CORK
    at all, which will leave it off on all current systems.

commit 53c375dc933b62b24df2c54d3938b03fa9da1f06
Author: Eric Wong 
Date:   Fri Jun 29 16:22:17 2012 -0700

    bind listeners after loading for preload_app users
    
    In the case where preload_app is true, delay binding new
    listeners until after loading the application.
    
    Some applications have very long load times (especially Rails
    apps with Ruby 1.9.2).  Binding listeners early may cause a load
    balancer to incorrectly believe the unicorn workers are ready to
    serve traffic even while the app is being loaded.
    
    Once a listener is bound, connect() requests from the load
    balancer succeed until the listen backlog is filled.  This
    allows requests to pile up for a bit (depending on backlog size)
    before getting rejected by the kernel.  By the time the
    application is loaded and ready-to-run, requests in the
    listen backlog are likely stale and not useful to process.
    
    Processes inheriting listeners do not suffer this effect, as the
    old process should still be capable of serving new requests.
    
    This change does not improve the situation for the
    preload_app=false (default) use case.  There may not be a
    solution for preload_app=false users using large applications.
    
    Fortunately Ruby 1.9.3+ improves load times of large
    applications significantly over 1.9.2 so this should be less of
    a problem in the future.
    
    Reported via private email sent on 2012-06-29T22:59:10Z

commit 91a3cde091d4ae6ff436681f155b3907daae1c04
Author: Eric Wong 
Date:   Thu Jul 26 23:44:04 2012 +0000

    remove Rails-oriented integration tests
    
    It's too much overhead to keep Rails-specific tests working,
    especially when it's hauling in an ancient version of SQLite3.
    Since Rails 3 has settled down with Rack and unicorn_rails is
    unlikely to need changing in the future, we can drop these
    tests.