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From: Eric Wong <e@80x24.org>
To: Amir Yalon <amiryal@yxejamir.net>
Cc: unicorn-public@bogomips.org
Subject: Re: Systemd socket inheritance fails with “not a socket file descriptor”
Date: Tue, 8 Mar 2016 17:39:13 +0000	[thread overview]
Message-ID: <20160308173710.GA534@dcvr.yhbt.net> (raw)
In-Reply-To: <1457423146.164433.542706346.5085E10D@webmail.messagingengine.com>

Amir Yalon <amiryal@yxejamir.net> wrote:
> Interesting.  With the testing patch applied, we’re now failing this
> test in thread_pthread.c:
> http://bogomips.org/mirrors/ruby.git/tree/thread_pthread.c#n1720
> Which then raises the following exception in io.c:
> http://bogomips.org/mirrors/ruby.git/tree/io.c#n7621
> From the journal:
> app/vendor/bundle/ruby/2.0.0/gems/unicorn-5.0.1/lib/unicorn/http_server.rb:780:in
> `for_fd': The given fd is not accessible because RubyVM reserves it
> (ArgumentError)

That should not happen.  So I wonder if LISTEN_FDS is set to
the wrong number, somehow.

How many sockets are you activating? LISTEN_FDS should match
that number.

Can you dump out the inherited, and LISTEN_* env variables with
the following?

--- a/lib/unicorn/http_server.rb
+++ b/lib/unicorn/http_server.rb
@@ -776,6 +776,8 @@ def inherit_listeners!
     # to ease debugging, we will not unset LISTEN_PID and LISTEN_FDS
+    $stderr.write("I=#{inherited.inspect} PID=#{sd_pid} FDS=#{sd_fds}\n")
     inherited.map! do |fd|
       io = Socket.for_fd(fd.to_i)
       io.autoclose = false


> > Also, can you verify the UNICORN_FD env is NOT set by systemd?
> > (It should not be)
> Verified, not set.
> > Also, for reference, which version of systemd is this?
> Ubuntu Wily 15.10, systemd 225-1ubuntu9

I'll try to test with a newer version this week(*) if the above
can't figure it out.

* maybe Thursday/Friday, my connectivity is inconsistent

  reply	other threads:[~2016-03-08 17:39 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-07 23:08 Systemd socket inheritance fails with “not a socket file descriptor” Amir Yalon
2016-03-08  3:31 ` Eric Wong
2016-03-08  7:45   ` Amir Yalon
2016-03-08 17:39     ` Eric Wong [this message]
2016-03-08 20:32       ` Amir Yalon
2016-03-09  3:51         ` Eric Wong
2016-03-09 13:19           ` Systemd socket inheritance fails with “not a socket file descriptor” [take2] Christos Trochalakis
2016-03-09 14:06           ` Systemd socket inheritance fails with “not a socket file descriptor” Christos Trochalakis
2016-03-10  9:48             ` Amir Yalon
2016-03-12  5:30               ` Eric Wong
2016-03-12 23:19             ` Amir Yalon
2016-03-17  0:27               ` [PATCH] doc: reference --keep-file-descriptors for "bundle exec" Eric Wong
2016-03-17 13:09                 ` Amir Yalon
2016-03-17 16:37                   ` Eric Wong

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