如何使用 BluePill 监控 PHP 脚本？

Question

我创建了一个Beanstalkd 工作脚本（使用Pheanstalk library）来处理上传时的图像缩略图，并希望实现BluePill 来监控/守护工作脚本，但 BluePill 无法启动该过程并且只是在开始和下降之间循环。

是否甚至可以使用 BluePill 来监控/守护 PHP 脚本？我通过 Google 找到的所有示例配置文件都是针对 Rails 应用程序的。我更喜欢 Ruby 而不是 PHP，并且想尝试其他的东西而不是 supervisord，因为坦率地说，我更喜欢 BluePill 语法。

这是我的 BluePill 脚本：

Bluepill.application("WorkerThumnail") do |app|
  app.process("thumbnail_watch") do |process|
    process.start_command = "/usr/local/bin/php /var/www/example.com/staging/shared/tasks/WorkerThumbnail.php"
    process.pid_file = "/tmp/beanstalk_thumbnail_worker.pid"
    process.daemonize = true

    process.start_grace_time = 3.seconds
    process.stop_grace_time = 5.seconds
    process.restart_grace_time = 8.seconds

    ###########################################
    # Memory and CPU Usage checks to make sure 
    # we don't have a runaway
    ###########################################

    # Check every 20 seconds to make the CPU usage is below 5%; 
    # if 3 out of 5 checks failed then restart the process
    process.checks :cpu_usage, :every => 20.seconds, :below => 5, :times => [3,5]

    # Check every 10 seconds to make the Memory usage is below 100 MB; 
    # if 3 out of 5 checks failed then restart the process
    process.checks :mem_usage, :every => 10.seconds, :below => 100.megabytes, :times => [3,5]
  end 
end

---

当我在前台运行 BluePill 脚本时，我看到以下输出一遍又一遍地重复，直到我手动终止进程

[warning]: [WorkerThumnail:thumbnail_watch] Executing start command: /usr/local/bin/php 
/var/www/example.com/staging/shared/tasks/WorkerThumbnail.php
[info]: [WorkerThumnail:thumbnail_watch] Going from down => starting
[info]: [WorkerThumnail:thumbnail_watch] Going from starting => down
[warning]: [WorkerThumnail:thumbnail_watch] Executing start command: /usr/local/bin/php /var/www/example.com/staging/shared/tasks/WorkerThumbnail.php
[info]: [WorkerThumnail:thumbnail_watch] Going from down => starting
[info]: [WorkerThumnail:thumbnail_watch] Going from starting => down
[warning]: [WorkerThumnail:thumbnail_watch] Executing start command: /usr/local/bin/php /var/www/example.com/staging/shared/tasks/WorkerThumbnail.php
[info]: [WorkerThumnail:thumbnail_watch] Going from down => starting
[info]: [WorkerThumnail:thumbnail_watch] Going from starting => down
[warning]: [WorkerThumnail:thumbnail_watch] Executing start command: /usr/local/bin/php /var/www/example.com/staging/shared/tasks/WorkerThumbnail.php
[info]: [WorkerThumnail:thumbnail_watch] Going from down => starting
[info]: [WorkerThumnail:thumbnail_watch] Going from starting => down

Answer 1

为了后代：

请记住，CLI 使用的 CWD 与通过 BluePill 作为守护程序运行时的 CWD 不同，因此如果您使用的是相对目录，请进行相应调整。

如果这最终不是真正的问题，请随时更新。