我的 EC2 实例上的 Apache2 出现了小问题。我安装了 LAMP，但当我调用时，apache2我收到了以下信息：
[Thu Dec 03 22:06:56.100599 2015] [core:warn] [pid 31235] AH00111: Config variable ${APACHE_LOCK_DIR} is not defined
[Thu Dec 03 22:06:56.100721 2015] [core:warn] [pid 31235] AH00111: Config variable ${APACHE_PID_FILE} is not defined
[Thu Dec 03 22:06:56.100777 2015] [core:warn] [pid 31235] AH00111: Config variable ${APACHE_RUN_USER} is not defined
[Thu Dec 03 22:06:56.100824 2015] [core:warn] [pid 31235] AH00111: Config variable ${APACHE_RUN_GROUP} is not defined
[Thu Dec 03 22:06:56.100871 2015] [core:warn] [pid 31235] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Thu Dec 03 22:06:56.105835 2015] [core:warn] [pid 31235] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Thu Dec 03 22:06:56.105971 2015] [core:warn] [pid 31235] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Thu Dec 03 22:06:56.106008 2015] [core:warn] [pid 31235] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
AH00526: Syntax error on line 74 of /etc/apache2/apache2.conf:
Invalid Mutex directory in argument file:${APACHE_LOCK_DIR}
我尝试了所有方法 -apt-get update再次安装 LAMP，但没有任何效果。我该如何设置此配置变量？
是的，我尝试在互联网上寻找解决方案，但是找不到。
答案1
直接从二进制文件调用 Apache 不包含环境变量，这会导致抛出错误。
使用 init 脚本启动、重启和停止 Apache，方法是
$ sudo service apache2 restart
或者
$ sudo apachectl restart