centos7下怎么通过zabbix监控redis状态

简介

Redis是一个开源的高性能键值对存储系统，常用于缓存、消息队列等场景，Zabbix是一款企业级的开源监控解决方案，可以监控各种网络参数、服务器性能指标等，本文将介绍如何在CentOS 7下通过Zabbix监控Redis状态。

安装Zabbix agent

1、确保已经安装了Redis和Zabbix server，如果没有安装，可以通过以下命令进行安装：

```

sudo yum install epel-release

sudo yum install redis

sudo yum install zabbix-server-mysql

```

2、接下来，安装Zabbix agent，在CentOS 7上，可以使用yum命令直接安装：

```

sudo yum install zabbix-agent

```

3、启动并设置开机自启动Zabbix agent:

```

sudo systemctl start zabbix-agent

sudo systemctl enable zabbix-agent

```

4、为Zabbix agent创建一个配置文件，通常位于/etc/zabbix/zabbix_agentd.conf，使用文本编辑器打开该文件，并根据实际情况修改以下参数：

```

Server=<Zabbix server IP>

Hostname=<Redis服务器主机名>

```

5、在Redis服务器上创建一个用于存放Zabbix agent数据的目录，

```

sudo mkdir -p /var/lib/zabbix/externalscripts/{HostID}/redis_status

```

6、将Redis的状态信息写入到刚才创建的目录中，可以使用以下Python脚本实现：

```python

-*coding:utf-8 -*-

import os

import sys

def get_redis_info():

return "info\r

"

"connected_clients:10\r

"

"used_memory:1048576\r

"

"used_memory_rss:1048576\r

"

"used_memory_peak:1048576\r

"

"used_memory_lua:0\r

"

"mem_fragmentation_ratio:100.00\r

"

"instantaneous_ops_per_sec:0\r

"

"total_commands_processed:10\r

"

"rejected_connections:0\r

"

"sync_in_progress:0\r

"

"sync_full:0\r

"

"sync_partial_ok:100\r

"

"last_bgsave_status:ok\r

"

"last_bgsave_time:1234567890\r

"

"second_best_score:-1r

"

"total_net_input_bytes:67890\r

"

"total_net_output_bytes:67890\r

"

" instantaneous_input_kbps:0.00r

"

"instantaneous_output_kbps:0.00\r

"

"repl_offset:1048576\r

"

"repl_backlog_active:1048576\r

"

"repl_backlog_size:1048576\r

"

"repl_backlog_firstbyte_offset:1048576\r

"

"repl_backlog_histlen:1048576\r

"

"role:master\r

"

"slaveof[<Redis master IP> <Redis master port>]\r

"

"masterauth[<Redis master auth>]\r

"

"masterhost[<Redis master host>]\r

"

"masterport[<Redis master port>]\rx"

if __name__ == '__main__':

print(get_redis_info())

if __name__ == '__main__':

get_redis_info() >> '/var/lib/zabbix/externalscripts/{HostID}/redis_status' &

os.system('chmod +x get_redis_info')

sys.exit(0)

```

配置Zabbix server连接到Redis服务器

1、在Zabbix server上，登录MySQL数据库，然后创建一个名为zabbix的用户并授权访问数据库：

```sql

mysql > create user 'zabbix'@'localhost' identified by 'yourpassword';

mysql > grant all privileges on *.* to 'zabbix'@'localhost' with grant option;

mysql > flush privileges;

```

2、在Zabbix server上，创建一个新的数据库来存储监控数据：

```sql

mysql > create database IF NOT EXISTS zabbix default charset = 'utf8' collate = 'utf8_bin';

```

3、在Zabbix server上，导入之前编写的Python脚本，并将其设置为外部脚本：

```sql

mysql > use zabbix;

source $(dirname ${MYSQL})/externalscripts/get_redis_info.py; --dbname=zabbix --user=root --password=yourpassword --host=localhost --port=6379 --outfile=/usr/share/doc/get-redis-info/data/redis_status; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.py; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})/externalscripts/get-redis-info.sh; exit; quit; source $(dirname ${MYSQL})