freeswitch服务器状态web端监控（可以更换为任意服务器进程）
咱专业是干Linux C的，可是摊上这音视频的事，单单做底层服务是远远不够的呀，这不连WEB也得会一点，运维的工作嘛这不是，太坑了。。。木办法呀！java Android/IOS的东西还要涉及，过几天再总结一下这几天鼓捣的JNI的东西，后期可能还要自己搞一个Android的测试例子，十八般武艺必须样样会打呀，这就是命！
废话少絮，接下来步入正题。首先在监控服务器上创建一个数据库monitor:
mysql -h172.16.150.23 -uroot -proot
create database monitor;
use monitor;
mysql> create table servers (
id int not null primary key auto_increment,
hostname varchar(20),
ip varchar(64),
cpuload varchar(64),
rootpartion varchar(64),
fscpumem varchar(64),
fsconference varchar(64),
uptime varchar(64),
time timestamp
);添加一个用户user1，并让其有访问monitor数据库的权限:
grant all privileges on monitor.* to 'user1'@'%' identified by 'Root123';
flush privileges在被监控服务器server1和server2上执行以下命令，看能否正常连接的到监控服务器的数据库
mysql -h172.16.150.23 -uuser1 -pRoot123 monitor接下来准备shell脚本用于监测（监测的项目根据需要增删）：
vim system_monitor.sh
#!/bin/bash
#Server status monitor
MYSQL="mysql -h172.16.150.23 -uuser1 -pRoot123 monitor -e"
HOSTNAME="172.16.150.21"
IP=$(/sbin/ifconfig eth0|grep 'inet addr'|sed 's/.*addr:\(.*\) Bcast:.*/\1/')
CPULOG_1=$(awk '/\/{print $2" "$3" "$4" "$5" "$6" "$7" "$8}' /proc/stat)
SYS_IDLE_1=$(echo $CPULOG_1 | awk '{print $4}')
Total_1=$(echo $CPULOG_1 | awk '{print $1+$2+$3+$4+$5+$6+$7}')
sleep 1
CPULOG_2=$(awk '/\/{print $2" "$3" "$4" "$5" "$6" "$7" "$8}' /proc/stat)
SYS_IDLE_2=$(echo $CPULOG_2 | awk '{print $4}')
Total_2=$(echo $CPULOG_2 | awk '{print $1+$2+$3+$4+$5+$6+$7}')
SYS_IDLE=`expr $SYS_IDLE_2 - $SYS_IDLE_1`
Total=`expr $Total_2 - $Total_1`
tmp_rate=`expr 1-$SYS_IDLE/$Total | bc -l`
SYS_Rate=`expr $tmp_rate*100 | bc -l`
Disp_SYS_Rate=`expr "scale=3; $SYS_Rate/1" |bc`
CPULOAD=$Disp_SYS_Rate%
pid=`/sbin/pidof freeswitch`
FSCPUMEM=`ps aux|grep freeswitch |grep $pid|awk '{print $3,$4}'`
FSCONFERENCE=$(/home/freeswitch/bin/fs_cli -x "conference list" |grep LIDE|awk '{print $2}')
UPTIME=$(uptime|sed 's/^.*age: \(.*\)$/\1/')
DISK=$(df -h|grep /$|awk '{print $5,$2,$4}')
if [ -n "$1" ];then
$MYSQL "insert into servers(hostname,ip,cpuload,rootpartion,fscpumem,fsconference,uptime,time) values('$HOSTNAME','$IP','$CPULOAD
','$DISK','$FSCPUMEM','$FSCONFERENCE','$UPTIME',now())"
else
$MYSQL "update servers set cpuload='$CPULOAD',rootpartion='$DISK',fscpumem='$FSCPUMEM',fsconference='$FSCONFERENCE',uptime='$UPTI
ME',time=now() where hostname='$HOSTNAME'"
fi ./system_monitor.sh: line 40: mysql: command not found
yum install mysql
放入crontab中,每1分钟执行一次:
crontab -e
*/1 * * * /root/system_monitor.sh
第一次需要手动执行如下命令，命令后加任意参数，这样可以在数据库插入一条新记录：
/root/system_monitor.sh 1
此时，数据库的监控数据如下：
到监控服务器，下载安装web.py框架（ web.py 是一个轻量级Python web框架，它简单、方便而且功能大）：
wget http://webpy.org/static/web.py-0.37.tar.gz
tar -xvf web.py-0.37.tar.gz
cd web.py-0.37
python setup.py install新建monitor.py文件：
import web
urls=(
'/','index'
)
render = web.template.render('templates/')
db = web.database(
host = '127.0.0.1' ,
dbn = 'mysql',
user = 'user1',
pw = 'Root123',
db = 'monitor'
)
class index:
def GET(self):
servers=db.select('servers')
return render.index(servers)
if __name__ == "__main__":
app = web.application(urls,globals())
app.run()新建一个模版目录templates，在该目录下新建index.html
$def with(servers)
<html>
<head>
<meta http-equiv='Content-Type' content='text/html; charset=utf-8' />
<meta http-equiv="refresh" content="30">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>FS监控title>
<style>
--
.datalist{
border:1px solid #0058a3; /* ???? */
font-family:Arial;
border-collapse:collapse; /* ???? */
background-color:#eaf5ff; /* ????? */
font-size:14px;
}
.datalist caption{
padding-bottom:5px;
font:bold 1.4em;
text-align:left;
}
.datalist th{
border:1px solid #0058a3; /* ????? */
background-color:#4bacff; /* ?????? */
color:#FFFFFF; /* ????? */
font-weight:bold;
padding-top:4px; padding-bottom:4px;
padding-left:12px; padding-right:12px;
text-align:center;
}
.datalist td{
border:1px solid #0058a3; /* ????? */
text-align:left;
padding-top:4px; padding-bottom:4px;
padding-left:10px; padding-right:10px;
}
.datalist tr.altrow{
background-color:#c7e5ff; /* ???? */
}
-->
style>
<style type="text/css">
#biaoge{
margin:6px;
padding:2px;
text-align:center;
}
#biaoge table{
margin:0px auto;
}
style>
head>
<body>
<div id="biaoge">
<span>
<h2>FS监控平台h2>
span>
<input type=button value=刷新 onclick="location.reload()">
<p> p>
<table class="datalist" summary="list of members in EE Studay">
<tr>
<th scope="col">IDth>
<th>服务器名称th>
<th>IPth>
<th>CPU负载th>
<th>存储状态th>
<th>FS负载th>
<th>FS在线人数/房间数th>
<th>平均负载th>
<th>刷新时间th>
tr>
$for server in servers:
$if server.id %2 == 0:
<tr>
<td align="center">$server.idtd>
<td align="center">$server.hostnametd>
<td align="center">$server.iptd>
<td align="center">$server.cpuloadtd>
<td align="center">$server.rootpartiontd>
<td align="center">$server.fscpumemtd>
<td align="center">$server.fsconferencetd>
<td align="center">$server.uptimetd>
<td align="center">$server.timetd>
tr>
$else:
<tr class="altrow">
<td align="center">$server.idtd>
<td align="center">$server.hostnametd>
<td align="center">$server.iptd>
<td align="center">$server.cpuloadtd>
<td align="center">$server.rootpartiontd>
<td align="center">$server.fscpumemtd>
<td align="center">$server.fsconferencetd>
<td align="center">$server.uptimetd>
<td align="center">$server.timetd>
tr>
table>
div>
body>
html>
启动web服务,默认启动在8080端口，如果不想使用默认端口，使用以下命令：
python monitor.py 9527
后台运行：
nohup python monitor.py 9527 >/dev/null 2>&1 &
如果提示ImportError: No module named MySQLdb，表示没有安装MySQLdb模块:
安装 MySQL-python
yum install MySQL-python
