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I get this repeated error - about once a second:
Exception `Errno::EAGAIN' at
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:643 -
Resource temporarily unavailable - accept(2)
Exception `Errno::EAGAIN' at
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:643 -
Resource temporarily unavailable - accept(2)
Exception `Errno::EAGAIN' at
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:643 -
Resource temporarily unavailable - accept(2)
Which seems to be related to:
ready.each do |sock|
begin
process_client(sock.accept_nonblock)
nr += 1
alive.chmod(m = 0 == m ? 1 : 0)
rescue Errno::EAGAIN, Errno::ECONNABORTED
end
break if nr < 0
end
My unicorn.conf is:
worker_processes 4
working_directory "/etc/puppet"
listen '/tmp/puppet.sock', :backlog => 1
listen 8140, :tcp_nopush => true
timeout 10
pid "/tmp/puppet.pid"
preload_app true
GC.respond_to?(:copy_on_write_friendly=) and
GC.copy_on_write_friendly = true
before_fork do |server, worker|
# the following is recomended for Rails + "preload_app true"
# as there's no need for the master process to hold a connection
# defined?(ActiveRecord::Base) and
# ActiveRecord::Base.connection.disconnect!
# the following allows a new master process to incrementally
# phase out the old master process with SIGTTOU to avoid a
# thundering herd (especially in the "preload_app false" case)
# when doing a transparent upgrade. The last worker spawned
# will then kill off the old master process with a SIGQUIT.
old_pid = "#{server.config[:pid]}.oldbin"
if old_pid != server.pid
begin
sig = (worker.nr + 1) >= server.worker_processes ? :QUIT : :TTOU
Process.kill(sig, File.read(old_pid).to_i)
rescue Errno::ENOENT, Errno::ESRCH
end
end
# optionally throttle the master from forking too quickly by
sleeping
sleep 1
end
The platform is Fedora 10, Ruby 1.8.6.
Oddly, if I comment out the preload I get:
Exception `Errno::EPERM' at
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:639 -
Operation not permitted - /tmp/0.520680132392046
Unhandled listen loop exception #<Errno::EPERM: Operation not
permitted - /tmp/0.520680132392046>.
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:639:in `chmod'
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:639:in
`worker_loop'
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:534:in
`spawn_missing_workers'
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:534:in `fork'
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:534:in
`spawn_missing_workers'
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:530:in `each'
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:530:in
`spawn_missing_workers'
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:540:in
`maintain_worker_count'
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:215:in `start'
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/lib/unicorn.rb:28:in `run'
/usr/lib/ruby/gems/1.8/gems/unicorn-0.95.0/bin/unicorn:165
/usr/bin/unicorn:19:in `load'
/usr/bin/unicorn:19
Repeatedly.
Regards
James Turnbull
- --
Author of:
* Pro Linux System Administration (http://tinyurl.com/linuxadmin)
* Pulling Strings with Puppet (http://tinyurl.com/pupbook)
* Pro Nagios 2.0 (http://tinyurl.com/pronagios)
* Hardening Linux (http://tinyurl.com/hardeninglinux)
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