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Ruby trunk started warning about more mismatched indentations
starting around r62836.
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This fixes a bug introduced in
commit fe83ead4eae6f011fa15f506cd80cb4256813a92
(GNUmakefile: fix clean gem build + reduce build cruft)
which broke clean Ruby installations without an existing
unicorn gem installed :x
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There is currently no GPLv4, so this change has no effect at the
moment.
In case the GPLv4 arrives and I am not alive to approve/review it,
the lesser of evils is have give blanket approval of all future GPL
versions (as published by the FSF). The worse evil is to be stuck
with a license which cannot guarantee the Free-ness of this project
in the future.
This unfortunately means the FSF can theoretically come out with
license terms I do not agree with, but the GPLv2 and GPLv3 will
always be an option to all users.
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Otherwise, the signalled process may take too long to react to
and process all the signals on machines with few CPUs.
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assert_nothing_raised ends up hiding errors and backtraces,
making things harder to debug. Since Test::Unit already
fails on uncaught exceptions, there is no need to assert
on the lack of exceptions for a successful test run.
This is a followup to commit 5acf5522295c947d3118926d1a1077007f615de9
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Existing license terms (Ruby-specific) and GPLv2 remain
in place, but GPLv3 is preferred as it helps with
distribution of AGPLv3 code and is explicitly compatible
with Apache License (v2.0).
Many more reasons are documented by the FSF:
https://www.gnu.org/licenses/quick-guide-gplv3.html
http://gplv3.fsf.org/rms-why.html
ref: http://thread.gmane.org/gmane.comp.lang.ruby.unicorn.general/933
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rescuing from SystemExit and exit()-ing again is ugly, but
changes made to lower stack depth positively affect _everyone_
so we'll tolerate some ugliness here.
We'll need to disable graceful exit for some tests, too...
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The bugs from signal handling were fixed in the Rubinius
1.1.0 release.
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As of rbx commit cf4a5a759234faa3f7d8a92d68fa89d8c5048f72,
most of the issues uncovered in our test suite are fixed.
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They cannot be worked around, but tickets have been filed
upstream (I still hate all bug trackers besides Debian's).
TCPServer.for_fd (needed for zero-downtime upgrades):
http://github.com/evanphx/rubinius/issues/354
UnixServer.for_fd (needed for zero-downtime upgrades):
http://github.com/evanphx/rubinius/issues/355
Signal handling behavior seems broken (OOM or segfaults):
http://github.com/evanphx/rubinius/issues/356
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This prevents trigger-happy init scripts from reading the pid
file (and thus sending signals) to a not-fully initialized
master process to handle them.
This does NOT fix anything if other processes are sending
signals prematurely without relying on the presence of the pid
file. It's not possible to prevent all cases of this in one
process, even in a purely C application, so we won't bother
trying.
We continue to always defer signal handling to the main loop
anyways, and signals sent to the master process will be
deferred/ignored until Unicorn::HttpServer#join is run.
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Just write bytes to the file instead and track its
size increase instead of its mode. As of now all
the unit tests pass under FreeBSD 7.2.
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We don't want to accidentally kill every process in the
process group.
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This ensures any string literals that pop up in *our* code will
just be a bag of bytes. This shouldn't affect/fix/break
existing apps in most cases, but most constants will always have
the "correct" encoding (none!) to be consistent with HTTP/socket
expectations. Since this comment affects things only on a
per-source basis, it won't affect existing apps with the
exception of strings we pass to the Rack application.
This will eventually allow us to get rid of that Unicorn::Z
constant, too.
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The normal at_exit handlers can't work here
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2 seconds is still prone to race conditions under high load.
We're intentionally less accurate than we could be in order to
reduce syscall and method dispatch overhead.
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Otherwise there's a chance a child won't have a socket bound by
the time we're trying to connect.
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Use SIGQUIT if you're going to be nice and do graceful
shutdowns. Sometimes people run real applications on this
server and SIGINT/SIGTERM get lost/trapped when Object is
rescued and that is not good. Also make sure we break out of
the loop properly when the master is dead.
Testcases added for both SIGINT and dead master handling.
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Timeouts of less than 2 seconds are unsafe due to the lack of
subsecond resolution in most POSIX filesystems. This is the
trade-off for using a low-complexity solution for timeouts.
Since this type of timeout is a last resort; 2 seconds is not
entirely unreasonable IMNSHO. Additionally, timing out too
aggressively can put us in a fork loop and slow down the system.
Of course, the default is 60 seconds and most people do not
bother to change it.
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Instead of just worker.nr. This is a configuration file/API
change and will break existing configurations.
This allows worker.tempfile to be exposed to the hooks
so ownership changes can still happen on it.
On the other hand, I don't know of many people actually
using this feature (or Unicorn).
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I/O on slow descriptors can be interrupted so make sure we
(and Ruby itself) are handling EINTR correctly.
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