Home Backend Development PHP Tutorial Detailed explanation of using mod_status module to monitor apache service instances

Detailed explanation of using mod_status module to monitor apache service instances

Jun 30, 2017 pm 03:52 PM
apache monitor

The apache service can be monitored using the mod_status module, which is represented in the apache configuration file httpd.conf as
##LoadModule status_module modules/mod_status.so.

You should comment out the preceding # to load the module.

Press G to jump to the end of the configuration file, add

          SetHandler server-status

                Order Deny, Allow

Deny from nothing

Allow from all

ExtendedStatus On

In this way, mod_status is successfully loaded. Enter the URL http://IP:PORT/server-status to monitor the apache service.

The following is the monitoring situation displayed on this web page:

Detailed explanation of using mod_status module to monitor apache service instances

Detailed explanation of using mod_status module to monitor apache service instances

##Parameter description:

字段                         说明
Server Version       Apache 服务器的版本。
Server Built         Apache 服务器编译安装的时间。
Current Time         目前的系统时间。
Restart Time         Apache 重新启动的时间。
Parent Server Generation        Apache 父程序 (parent process) 的世代编号,就是 httpd 接收到 SIGHUP 而重新启动的次数。
Server uptime         Apache 启动后到现在经过的时间。
Total accesses         到目前为此 Apache 接收的联机数量及传输的数据量。
CPU Usage           目前 CPU 的使用情形。
_SWSS....            所有 Apache process 目前的状态。每一个字符表示一个程序,最多可以显示 256 个程序的状态。
Scoreboard Key         上述状态的说明。以下为每一个字符符号所表示的意义:
    * _:等待连结中。
    * S:启动中。
    * R:正在读取要求。
    * W:正在送出回应。
    * K:处于保持联机的状态。
    * D:正在查找DNS。
    * C:正在关闭连结。
    * L:正在写入记录文件。
    * G:进入正常结束程序中。
    * I:处理闲置。
    * .:尚无此程序。
Srv        本程序与其父程序的世代编号。
PID        本程序的process id。
Acc        分别表示本次联机、本程序所处理的存取次数。
M         该程序目前的状态。
CPU        该程序所耗用的CPU资源。
SS         距离上次处理要求的时间。
Req        最后一次处理要求所耗费的时间,以千分之一秒为单位。
Conn       本次联机所传送的数据量。
Child       由该子程序所传送的数据量。
Slot        由该 Slot 所传送的数据量。
Client       客户端的地址。
VHost       属于哪一个虚拟主机或本主机的IP。
Request     联机所提出的要求信息。
Copy after login

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