In this and the first article on semaphores, we hope to have eased some of the confusion over their role in your system -- and enabled you to be proactive in the job of troubleshooting timeout issues.
我们希望本文和第一篇文章有助于缓解您系统上的信号量问题，让您能够预防信号量超时问题。
2
The job aborts if all the player processes cannot be synchronized within the timeout period, which by default is 20 seconds.
如果不能在超时时间内(默认为20秒)同步所有播放器进程，则作业将中断。
3
Remember, the script has timeout protection and auto resume - so just get it started and leave it to do its job.