复苏老客

通过apache配置了虚拟主机，但是在查看error_log的时候，发现总是有如下错误

[Sun Jun 09 15:23:41 2019] [error] proxy: ap_get_scoreboard_lb(1) failed in child 4383 for worker fcgi://127.0.0.1:9000
[Sun Jun 09 15:23:41 2019] [error] proxy: ap_get_scoreboard_lb(1) failed in child 4384 for worker fcgi://127.0.0.1:9000
[Sun Jun 09 15:24:54 2019] [error] proxy: ap_get_scoreboard_lb(1) failed in child 4391 for worker fcgi://127.0.0.1:9000
[Sun Jun 09 15:25:01 2019] [error] proxy: ap_get_scoreboard_lb(1) failed in child 4392 for worker fcgi://127.0.0.1:9000
[Sun Jun 09 15:25:02 2019] [error] proxy: ap_get_scoreboard_lb(1) failed in child 4396 for worker fcgi://127.0.0.1:9000
[Sun Jun 09 15:25:02 2019] [error] proxy: ap_get_scoreboard_lb(1) failed in child 4397 for worker fcgi://127.0.0.1:9000
[Sun Jun 09 15:25:03 2019] [error] proxy: ap_get_scoreboard_lb(1) failed in child 4398 for worker fcgi://127.0.0.1:9000
[Sun Jun 09 15:25:03 2019] [error] proxy: ap_get_scoreboard_lb(1) failed in child 4399 for worker fcgi://127.0.0.1:9000
[Sun Jun 09 15:25:03 2019] [error] proxy: ap_get_scoreboard_lb(1) failed in child 4400 for worker fcgi://127.0.0.1:9000
[Sun Jun 09 15:25:03 2019] [error] proxy: ap_get_scoreboard_lb(1) failed in child 4401 for worker fcgi://127.0.0.1:9000

通过搜索找到解决办法

解决办法：
1./etc/init.d/apache stop
2./etc/init.d/apache start

此解决方法参考：https://tim-fly.iteye.com/blog/1932204

很奇怪，service apache restart好几次都没有效果，总是清除不了这种错误，而error_log日志中定时报这种错误。

apache似乎必须要采用上面的解决方法.