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。
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。
Remember, the script has timeout protection and auto resume - so just get it started and leave it to do its job.
记住，升级程序有超时控制和自动继续恢复功能——所以你只要开始执行升级，然后让程序自己去完成升级工作就可以了。
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