Sidekiq不会启动(获得SIGHUP)

Question

我有一个Rails 5 API，带有Sidekiq和capistrano sidekiq，在过去的几个月里一直很好地工作。

前几天，Sidekiq停止处理作业。查看日志，我看到

bundler: failed to load command: sidekiq (/home/user/project/shared/bundle/ruby/2.2.0/bin/sidekiq)
SignalException: SIGHUP
/home/user/project/shared/bundle/ruby/2.2.0/gems/activesupport-5.0.0.1/lib/active_support/core_ext/module/attribute_accessors.rb:119:in `<class:Module>'
/home/user/project/shared/bundle/ruby/2.2.0/gems/activesupport-5.0.0.1/lib/active_support/core_ext/module/attribute_accessors.rb:6:in `<top (required)>'
... (snip)

每当我尝试启动Sidekiq时，上面的内容就会出现在日志中。它使用静音命令(USR1)关闭并正确退出。

INFO: Received USR1, no longer accepting new work

我正在使用Capistrano进行部署，在这种情况发生之前，它一直运行良好。以下是启动Sidekiq的命令Capistrano：

INFO [2aac3b89] Running $HOME/.rbenv/bin/rbenv exec bundle exec sidekiq --index 0 --pidfile /home/user/project/shared/tmp/pids/sidekiq-0.pid --environment production --logfile /home/user/project/shared/log/sidekiq.log --daemon as user@xxx.xxx.xxx.xxx
DEBUG [2aac3b89] Command: cd /home/user/project/current && ( export RBENV_ROOT="$HOME/.rbenv" RBENV_VERSION="2.2.3" ; $HOME/.rbenv/bin/rbenv exec bundle exec sidekiq --index 0 --pidfile /home/user/project/shared/tmp/pids/sidekiq-0.pid --environment production --logfile /home/user/project/shared/log/sidekiq.log --daemon )
INFO [2aac3b89] Finished in 1.176 seconds with exit status 0 (successful).

怎么一回事？我怎样才能保证以后不会发生这种事呢？

Answer 1

在卡皮斯特拉诺，我让:pty设置为true。我猜它还没来得及启动就已经扼杀了这个过程。我仍然不知道为什么现在这是一个问题，但是将:pty设置为false似乎已经做到了这一点。