zabbix监控项进程

最新推荐文章于 2025-05-21 09:42:54 发布

原创最新推荐文章于 2025-05-21 09:42:54 发布 · 894 阅读

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#zabbix

一、自定义监控进程

//安装httpd
[root@node4 ~]# yum -y install httpd

//查看进程
[root@node4 ~]# ps -ef | grep httpd
root        1234       1  0 16:16 ?        00:00:00 /usr/sbin/httpd -DFOREGROUND
apache      1235    1234  0 16:16 ?        00:00:00 /usr/sbin/httpd -DFOREGROUND
apache      1237    1234  0 16:16 ?        00:00:00 /usr/sbin/httpd -DFOREGROUND
apache      1238    1234  0 16:16 ?        00:00:00 /usr/sbin/httpd -DFOREGROUND
apache      1239    1234  0 16:16 ?        00:00:00 /usr/sbin/httpd -DFOREGROUND
root        1433     896  0 16:16 pts/0    00:00:00 grep --color=auto httpd
[root@node4 ~]# ps -ef | grep httpd | grep -v grep | wc -l
5
[root@node4 ~]# ps -ef | grep -v grep | grep -c httpd
5

//编写脚本 
[root@node4 ~]# mkdir /etc/zabbix/script
[root@node4 ~]# cd /etc/zabbix/script/
[root@node4 script]# vim check_httpd.sh
[root@node4 script]# chmod +x check_httpd.sh 
[root@node4 script]# chown -R zabbix.zabbix /etc/zabbix/script/

//检查脚本
[root@node4 script]# systemctl stop httpd
[root@node4 script]# ./check_httpd.sh 
1
[root@node4 script]# systemctl restart httpd
[root@node4 script]# ./check_httpd.sh 
0

//添加监控项
[root@node4 script]# vim /etc/zabbix/zabbix_agentd.conf
UserParameter=check_httpd,/bin/bash /etc/zabbix/script/check_httpd.sh 
[root@node4 script]# systemctl restart zabbix-agent.service

新建监控项

配置触发器测试

二、自定义监控日志

//检查日志里有无错误信息
[root@node4 ~]# cd /var/log/httpd/
[root@node4 httpd]# cat error_log | grep error
[root@node4 httpd]# cat error_log | grep Error

//插入python脚本，给它赋权
[root@node4 ~]# cd /etc/zabbix/script/
[root@node4 script]# rz -E
rz waiting to receive.
[root@node4 script]# ll
total 8
-rwxr-xr-x 1 zabbix zabbix  129 Aug 13 16:30 check_httpd.sh
-rw-r--r-- 1 root   root   1854 Aug 15 09:11 log.py
[root@node4 script]# chmod +x log.py 
[root@node4 script]# chown zabbix.zabbix log.py 
[root@node4 script]# ll
total 8
-rwxr-xr-x 1 zabbix zabbix  129 Aug 13 16:30 check_httpd.sh
-rwxr-xr-x 1 zabbix zabbix 1854 Aug 15 09:11 log.py
[root@node4 script]# cat log.py 
#!/usr/bin/env python3
import sys
import re

def prePos(seekfile):
    global curpos
    try:
        cf = open(seekfile)
    except IOError:
        curpos = 0
        return curpos
    except FileNotFoundError:
        curpos = 0
        return curpos
    else:
        try:
            curpos = int(cf.readline().strip())
        except ValueError:
            curpos = 0
            cf.close()
            return curpos
        cf.close()
    return curpos

def lastPos(filename):
    with open(filename) as lfile:
        if lfile.readline():
            lfile.seek(0,2)
        else:
            return 0
        lastPos = lfile.tell()
    return lastPos

def getSeekFile():
    try:
        seekfile = sys.argv[2]
    except IndexError:
        seekfile = '/tmp/logseek'
    return seekfile

def getKey():
    try:
        tagKey = str(sys.argv[3])
    except IndexError:
        tagKey = 'Error'
    return tagKey

def getResult(filename,seekfile,tagkey):
    destPos = prePos(seekfile)
    curPos = lastPos(filename)

    if curPos < destPos:
        curpos = 0

    try:
        f = open(filename)
    except IOError:
        print('Could not open file: %s' % filename)
    except FileNotFoundError:
        print('Could not open file: %s' % filename)
    else:
        f.seek(destPos)

        while curPos != 0 and f.tell() < curPos:
            rresult = f.readline().strip()
            global result
            if re.search(tagkey, rresult):
                result = 1
                break
            else:
                result = 0

        with open(seekfile,'w') as sf:
            sf.write(str(curPos))
    finally:
        f.close()
    return result

if __name__ == "__main__":
    result = 0
    curpos = 0
    tagkey = getKey()
    seekfile = getSeekFile()
    result = getResult(sys.argv[1],seekfile,tagkey)
    print(result)

//安装python3
[root@node4 script]# yum -y install python3

//httpd服务的日志文件在/var/log/httpd/目录下，首先我们需要给这个目录设置一个ACL权限，让zabbix用户有权限去访问该目录
[root@node4 script]# cd /var/log/httpd/
[root@node4 httpd]# ls -ld .
drwx------ 2 root root 107 Aug  9 00:30 .
[root@node4 httpd]# setfacl -m u:zabbix:r-x /var/log/httpd/

//修改zabbix_agentd.conf文件，并重启服务
[root@node4 httpd]# vim /etc/zabbix/zabbix_agentd.conf
UserParameter=check_logs[*],/usr/bin/python3 /etc/zabbix/script/log.py $1 $2 $3 
[root@node4 httpd]# systemctl restart zabbix-agent.service

 //测试脚本
[root@node4 httpd]# cd /etc/zabbix/script/
[root@node4 script]# python3 log.py /var/log/httpd/error_log 
0
[root@node4 script]# echo 'Error' >> /var/log/httpd/error_log
[root@node4 script]# python3 log.py /var/log/httpd/error_log 
1
[root@node4 script]# vim /var/log/httpd/error_log 
[root@node4 script]# python3 log.py /var/log/httpd/error_log 
0
[root@node4 script]# rm -rf /tmp/logseek

测试

三、zabbix监控mysql主从（需提前搭建好主从环境）

//编写脚本
[root@slave ~]# cd /etc/zabbix/
[root@slave zabbix]# mkdir script
[root@slave zabbix]# cd script/
[root@slave script]# vim mysql_slave_status.sh
#!/bin/bash
USER="root"
PASSWD="redhat"
NAME=$1

function IO {
    Slave_IO_Running=`mysql -u $USER -p$PASSWD -e "show slave status\G;" 2> /dev/null |grep Slave_IO_Running |awk '{print $2}'`
    if [ $Slave_IO_Running == "Connecting" ];then
        echo 0 
    else
        echo 1 
    fi
}

function SQL {
    Slave_SQL_Running=`mysql -u $USER -p$PASSWD -e "show slave status\G;" 2> /dev/null |grep Slave_SQL_Running: |awk '{print $2}'`
    if [ $Slave_SQL_Running == "Yes" ];then
        echo 0 
    else
        echo 1 
    fi
}

case $NAME in
   io)
        IO
   ;;
   sql)
        SQL
   ;;
   *)
        echo -e "Usage: $0 [io | sql]"
esac
[root@slave script]# chmod +x mysql_slave_status.sh 
[root@slave script]# chown -R zabbix.zabbix /etc/zabbix/script/

//测试脚本
[root@slave script]# ./mysql_slave_status.sh 
Usage: ./mysql_slave_status.sh [io | sql]
[root@slave script]# ./mysql_slave_status.sh io
0
[root@slave script]# ./mysql_slave_status.sh sql
0

//编写一个自配置文件，里面指定上面编写的脚本的路径，然后重启服务
[root@slave script]#  cd /etc/zabbix/
[root@slave zabbix]# ls
script  zabbix_agentd.conf  zabbix_agentd.d
[root@slave zabbix]# cd zabbix_agentd.d/
[root@slave zabbix_agentd.d]# vim userparameter_mysql_slave.conf
[root@slave zabbix_agentd.d]# chown -R zabbix.zabbix /etc/zabbix/zabbix_agentd.d/userparameter_mysql_slave.conf 
[root@slave zabbix_agentd.d]# systemctl restart zabbix-agent.service

//在zabbix服务端进行验证
[root@zabbix ~]# zabbix_get -s 192.168.35.143 -k mysql.slave[io]
0
[root@zabbix ~]# zabbix_get -s 192.168.35.143 -k mysql.slave[sql]
0
//验证的结果如果是0，为正常，如果为1，则异常

测试

四、zabbix监控主从延迟

//编写脚本
[root@slave zabbix_agentd.d]# cd /etc/zabbix/script/
[root@slave script]# vim mysql_delay.sh
#!/bin/bash     
delay=$(mysql -uroot -predhat -e 'show slave status\G' 2> /dev/null | grep 'Seconds_Behind_Master' | awk '{print $2}')
if [ $delay == "NULL" ];then
echo 0
elif [ $delay -ge 0 ] && [ $delay -le 200 ];then         
echo 0
else
echo $delay
fi
chown -R zabbix.zabbix mysql_delay.sh
chmod +x mysql_delay.sh 
[root@slave script]# chown -R zabbix.zabbix mysql_delay.sh
[root@slave script]# chmod +x mysql_delay.sh

//配置agentd文件，并重启服务
[root@slave script]# vim /etc/zabbix/zabbix_agentd.d/userparameter_mysql_slave.conf
UserParameter=check_mysql_delay,/bin/bash /etc/zabbix/script/mysql_delay.sh
[root@slave script]# systemctl restart zabbix-agent.service 

//在zabbix主机端进行测试
[root@zabbix ~]# zabbix_get -s 192.168.35.143 -k check_mysql_delay
0

测试