Apache HTTPD 重新加载
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Apache HTTPD reload
提问by Luke
Does anyone know if while Apache HTTPD is doing a reload (which, let's say, takes five seconds) can it still serve requests during that time?
有谁知道在 Apache HTTPD 进行重新加载时（假设需要 5 秒）它是否仍然可以在此期间处理请求？
回答by karim79
First of all, you say reload, but assuming you mean 'reload' OR 'restart':
首先，您说重新加载，但假设您的意思是“重新加载”或“重新启动”：
/my/path/to/httpd restart
- Causes the current httpd process to exit, which means for a time the server appears to be down, as in not serving any requests.
- 导致当前的 httpd 进程退出，这意味着有一段时间服务器似乎已关闭，因为没有提供任何请求。
Reload on the other side:
在另一边重新加载：
/my/path/to/httpd reload
- Does not cause the current server to exit, which means connections are never refused and thus the server never looks down (but is rather slow for a little while)
- Will cause all long running httpd daemon requests to exit
- 不会导致当前服务器退出，这意味着连接永远不会被拒绝，因此服务器永远不会向下看（但有一段时间相当慢）
- 将导致所有长时间运行的 httpd 守护进程请求退出
回答by Ross
As far as I know, no. However there is a graceful restart which stops child nodes halting mid-request which I think takes care of this.
据我所知，没有。然而，有一个优雅的重启可以阻止子节点停止中间请求，我认为这可以解决这个问题。
