ruby - 不承认 resque worker 已经启动

Question

我在运行 resque workers from god 时遇到问题。

这是我的上帝配置

num_workers = 9 
queue       = '*'
current_path = "/u/apps/narg/current"

God.pid_file_directory = "/u/apps/narg/current/tmp/pids"
num_workers.times do |num|
  God.watch do |w|
    w.name     = "resque-#{num}"
    w.group    = "resque_all"
    w.interval = 30.seconds
    w.env      = {"QUEUE"=>queue, "RAILS_ENV"=>"production",
             'PIDFILE' => "#{current_path}/tmp/pids/#{w.name}.pid" }
w.start    = "cd #{current_path} ; bundle exec rake environment resque:work"
w.log      = "#{current_path}/log/god-#{w.name}.log"
w.pid_file = "#{current_path}/tmp/pids/#{w.name}.pid"
w.uid = 'root'
w.gid = 'root'
w.behavior(:clean_pid_file)
# retart if memory gets too high
w.transition(:up, :restart) do |on|
  on.condition(:memory_usage) do |c|
    c.above = 150.megabytes
    c.times = 2
  end
end

# determine the state on startup
w.transition(:init, { true => :up, false => :start }) do |on|
  on.condition(:process_running) do |c|
    c.running = true
    c.interval = 5
  end
end

# determine when process has finished starting
w.transition([:start, :restart], :up) do |on|
  on.condition(:process_running) do |c|
    c.running = true
    c.interval = 5.seconds
  end

  # failsafe
  on.condition(:tries) do |c|
    c.times = 5
    c.transition = :start
    c.interval = 5.seconds
  end
end

    # start if process is not running
    w.transition(:up, :start) do |on|
      on.condition(:process_running) do |c|
        c.running = false
      end
    end
  end
end

当我启动上帝时，当工作人员正在工作时，一切看起来都很好，并且它运行所有转换到:向上。

但是当worker不在运行的时候，启动后就停止了。 worker 实际上已经启动，pid 文件也是正确的。只有上帝不明白:

 ** [out :: narg-wrk02] I [2012-08-23 11:40:48]  INFO: resque-7 move 'unmonitored' to 'init'
 ** [out :: narg-wrk02] I [2012-08-23 11:40:48]  INFO: resque-7 moved 'unmonitored' to 'init'
 ** [out :: narg-wrk02] I [2012-08-23 11:40:48]  INFO: resque-7 [trigger] process is not running (ProcessRunning)
 ** [out :: narg-wrk02] I [2012-08-23 11:40:48]  INFO: resque-7 move 'init' to 'start'
 ** [out :: narg-wrk02] I [2012-08-23 11:40:48]  INFO: resque-7 before_start: deleted pid 
 ** [out :: narg-wrk02] I [2012-08-23 11:40:48]  INFO: resque-7 start: cd /u/apps/narg/current ; bundle exec rake environment resque:work

如前所述，工作人员已启动并运行良好。 pid 文件也包含正确的 pid。

如果我现在 kill god 并重新启动它，它会很好地识别正在运行的 worker 并转换到 :up..

有什么想法或建议吗？

Answer 1

尝试改变

w.start = "cd #{current_path} ; bundle exec rake environment resque:work"

到

w.start = "cd #{current_path} ; bundle exec rake environment resque:work &"

这为我解决了同样的问题。