我目前正在使用 God 启动 6 个 resque 工作进程。Resque 表明他们已经开始工作并且一切正常。有时，工作进程会失去识别并不再是已知的 resque 工作进程。我正在寻找的是一种重新启动该过程或让 resque-web 再次识别它的方法。奇怪的是它仍然在后台运行并分叉任务来处理它们，我可以看到 resque-web 上的数量减少了，但它并没有显示任何工作人员正在运行。我查看了他们的 stale.god 脚本，但这不起作用，因为该过程似乎在从 resque-web 识别中删除后继续检索工作。这是我的设置：
#resque-production.god
6.times do |num|
God.watch do |w|
w.name = "resque-#{num}"
w.group = "resque"
w.interval = 30.seconds
w.env = { 'RAILS_ENV' => 'production' }
w.dir = File.expand_path(File.join(File.dirname(__FILE__)))
w.start = "bundle exec rake environment RAILS_ENV=production resque:workers:start"
w.start_grace = 10.seconds
w.log = "/var/www/loadmax/shared/log/resque-worker.log"
# restart if memory gets too high
w.transition(:up, :restart) do |on|
on.condition(:memory_usage) do |c|
c.above = 200.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
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
下一个文件用于连接到一个 redis 服务器并设置优先级。
#resque.rake
require 'resque/tasks'
Dir.glob("#{Rails.root}/app/workers/*.rb") do |rb|
require rb
end
task "resque:setup" => :environment do
resque_config = YAML.load_file(Rails.root.join("config","resque.yml"))
ENV['QUEUE'] = resque_config["priority"].map{ |x| "#{x}" }.join(",") if ENV['QUEUE'].nil?
end
task "resque:workers:start" => :environment do
threads = []
q = [1,2]
resque_config = YAML.load_file(Rails.root.join("config","resque.yml"))
threads << Thread.new(q){ |qs|
%x[bundle exec rake environment RAILS_ENV=#{Rails.env} resque:work QUEUE=#{resque_config["priority"].map{ |x| "#{x}" }.join(",")} ]
}
threads.each {|aThread| aThread.join }
end
我一直在寻找解决方案，僵尸进程、陈旧进程和退出进程似乎都不是解决方案。我是god -c /path/to/god用来启动的。
让我知道我是否需要提供任何其他内容或更清楚。感谢所有的帮助！