Monit未启动进程-执行失败错误

我正在使用monit gem来监视我的sidekiq进程 我的MONTRC配置文件:-

check process sidekiq_process with pidfile /home/path_to_pid
start program = "bundle exec sidekiq -d -L log/sidekiq.log -C config/sidekiq.yml -e development"  with timeout 60 seconds
stop program  = "bundle exec sidekiq -d -L log/sidekiq.log -C config/sidekiq.yml -e development"

我的sidekiq。yml文件:-

 development:
:pidfile: tmp/pids/sidekiq_development.pid
:logfile: log/sidekiq_development.log
:concurrency: 1

运行sidekiq后,使用 bundle exec sidekiq -d -L log/sidekiq.log -C config/sidekiq.yml -e development 然后跑 sudo monit , sudo monit status 给我这个:-

Process 'sidekiq_process'
status                            Running
monitoring status                 Monitored
pid                               10951
parent pid                        1378
uid                               1000
effective uid                     1000
gid                               1000
uptime                            0m 
threads                           2
children                          0
memory                            103.4 MB
memory total                      103.4 MB
memory percent                    1.3%
memory percent total              1.3%
cpu percent                       0.0%
cpu percent total                 0.0%
data collected                    Mon, 13 Aug 2018 12:14:06

所以,它的监控很好,当我终止sidekiq进程时,它甚至会向我发送邮件“不存在”,但问题是在sidekiq进程终止后,它还应该重新启动进程。这是什么 sudo monit状态 在sidekiq被杀后给我的

Process 'sidekiq_process'
status                            Execution failed
monitoring status                 Monitored
data collected                    Mon, 13 Aug 2018 12:19:13

我还收到邮件说“执行失败”。
为什么我得到执行失败的错误,为什么进程没有被monit重新启动?