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Zabbix监控Redis

来源：互联网收集：自由互联发布时间：2023-02-04

监控redis服务可以使用redis自带的客户端命令来连接redis的服务，redis-cli连接redis服务在使用info命令来查询redis状态信息，在通过脚本利用此命令并结合其他命令将数据抽取有用的值

监控redis服务可以使用redis自带的客户端命令来连接redis的服务，redis-cli连接redis服务在使用info命令来查询redis状态信息，在通过脚本利用此命令并结合其他命令将数据抽取有用的值来完成对redis的可选监控，这里我使用的Linux系统是ubuntu的20.04的版本，redis服务我也安装Linux主机上了,监控的话也就在zabbix web界面上添加自定义的模板就好了。

1、准备Redis服务

#redis服务器也是必须安装redis和zabbix agent的 root@Linux:~# wget https://repo.zabbix.com/zabbix/5.0/ubuntu/pool/main/z/zabbix-release/zabbix-release_5.0-1%2Bfocal_all.deb root@Linux:~# dpkg -i zabbix-release_5.0-1+focal_all.deb root@Linux:~# apt update root@Linux:~# apt -y install zabbix-agent redis nmap ncat root@Linux:~# ss -tnl | grep 6379 LISTEN 0 511 127.0.0.1:6379 0.0.0.0:* LISTEN 0 511 [::1]:6379 [::]:* root@Linux:~# vi /etc/redis/redis.conf bind 0.0.0.0 root@Linux:~# systemctl restart redis root@Linux:~# systemctl status redis ● redis-server.service - Advanced key-value store Loaded: loaded (/lib/systemd/system/redis-server.service; enabled; vendor preset: enabled) Active: active (running) since Mon 2022-12-05 19:27:19 CST; 8s ago Docs: http://redis.io/documentation, man:redis-server(1) Process: 16164 ExecStart=/usr/bin/redis-server /etc/redis/redis.conf (code=exited, status=0/SUCCESS) Main PID: 16176 (redis-server) Tasks: 4 (limit: 4575) Memory: 2.1M CGroup: /system.slice/redis-server.service └─16176 /usr/bin/redis-server 0.0.0.0:6379 Dec 05 19:27:19 Linux.stars.com systemd[1]: Starting Advanced key-value store... Dec 05 19:27:19 Linux.stars.com systemd[1]: redis-server.service: Can't open PID file /run/redis/redis-server.pid (yet?) after start: Operation not permitted Dec 05 19:27:19 Linux.stars.com systemd[1]: Started Advanced key-value store. root@Linux:~# ss -tnl | grep 6379 LISTEN 0 511 0.0.0.0:6379 0.0.0.0:*

2、编辑监控使用的脚本

#可以先用redis-cli命令查看redis info的信息 root@Linux:~# redis-cli 127.0.0.1:6379> info # Server redis_version:5.0.7 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:66bd629f924ac924 redis_mode:standalone os:Linux 5.4.0-128-generic x86_64 arch_bits:64 multiplexing_api:epoll atomicvar_api:atomic-builtin gcc_version:9.3.0 process_id:16176 run_id:3f7fa8cc8868feadeebe68b47a891ed10ffa7b37 tcp_port:6379 uptime_in_seconds:327 uptime_in_days:0 hz:10 configured_hz:10 lru_clock:9295582 executable:/usr/bin/redis-server config_file:/etc/redis/redis.conf # Clients connected_clients:1 client_recent_max_input_buffer:2 client_recent_max_output_buffer:0 blocked_clients:0 # Memory used_memory:859136 used_memory_human:839.00K used_memory_rss:6025216 used_memory_rss_human:5.75M used_memory_peak:859136 used_memory_peak_human:839.00K used_memory_peak_perc:100.12% used_memory_overhead:845910 used_memory_startup:796216 used_memory_dataset:13226 used_memory_dataset_perc:21.02% allocator_allocated:1570968 allocator_active:1892352 allocator_resident:9105408 total_system_memory:4090576896 total_system_memory_human:3.81G used_memory_lua:41984 used_memory_lua_human:41.00K used_memory_scripts:0 used_memory_scripts_human:0B number_of_cached_scripts:0 maxmemory:0 maxmemory_human:0B maxmemory_policy:noeviction allocator_frag_ratio:1.20 allocator_frag_bytes:321384 allocator_rss_ratio:4.81 allocator_rss_bytes:7213056 rss_overhead_ratio:0.66 rss_overhead_bytes:-3080192 mem_fragmentation_ratio:7.37 mem_fragmentation_bytes:5208088 mem_not_counted_for_evict:0 mem_replication_backlog:0 mem_clients_slaves:0 mem_clients_normal:49694 mem_aof_buffer:0 mem_allocator:jemalloc-5.2.1 active_defrag_running:0 lazyfree_pending_objects:0 # Persistence loading:0 rdb_changes_since_last_save:0 rdb_bgsave_in_progress:0 rdb_last_save_time:1670239639 rdb_last_bgsave_status:ok rdb_last_bgsave_time_sec:-1 rdb_current_bgsave_time_sec:-1 rdb_last_cow_size:0 aof_enabled:0 aof_rewrite_in_progress:0 aof_rewrite_scheduled:0 aof_last_rewrite_time_sec:-1 aof_current_rewrite_time_sec:-1 aof_last_bgrewrite_status:ok aof_last_write_status:ok aof_last_cow_size:0 # Stats total_connections_received:1 total_commands_processed:1 instantaneous_ops_per_sec:0 total_net_input_bytes:31 total_net_output_bytes:11468 instantaneous_input_kbps:0.00 instantaneous_output_kbps:0.00 rejected_connections:0 sync_full:0 sync_partial_ok:0 sync_partial_err:0 expired_keys:0 expired_stale_perc:0.00 expired_time_cap_reached_count:0 evicted_keys:0 keyspace_hits:0 keyspace_misses:0 pubsub_channels:0 pubsub_patterns:0 latest_fork_usec:0 migrate_cached_sockets:0 slave_expires_tracked_keys:0 active_defrag_hits:0 active_defrag_misses:0 active_defrag_key_hits:0 active_defrag_key_misses:0 # Replication role:master connected_slaves:0 master_replid:c18e66707cf32c54fdea753cf39e04b110d19a5f master_replid2:0000000000000000000000000000000000000000 master_repl_offset:0 second_repl_offset:-1 repl_backlog_active:0 repl_backlog_size:1048576 repl_backlog_first_byte_offset:0 repl_backlog_histlen:0 # CPU used_cpu_sys:0.356384 used_cpu_user:0.036170 used_cpu_sys_children:0.000000 used_cpu_user_children:0.000000 # Cluster cluster_enabled:0 # Keyspace 127.0.0.1:6379> #脚本里面可以把redis-cli命令info的信息存放在一个文件里，在对这个文件内的内容进行抽取，获得自己想要的监控的redis参数数据 root@Linux:~# vi redis_monitor.sh root@Linux:~# cat redis_monitor.sh #!/bin/bash redis_status(){ R_PORT=$1 R_COMMAND=$2 (echo -en "INFO \r\n";) | ncat 127.0.0.1 "$R_PORT" > /tmp/redis_status.tmp REDIS_STAT_VALUE=$(grep ""$R_COMMAND":" /tmp/redis_status.tmp | cut -d ":" -f2) echo $REDIS_STAT_VALUE } #这的help可以省略去掉的 help(){ echo "${0} + redis_status + PORT + COMMAND" } #如果把前面的help函数内容去掉后，也要把*到esac前面的;;去掉 main(){ case $1 in redis_status) redis_status $2 $3 ;; *) help ;; esac } main $1 $2 $3 root@Linux:~# chmod a+x redis_monitor.sh root@Linux:~# mv redis_monitor.sh /etc/zabbix/zabbix_agentd.d/ root@Linux:~# cd /etc/zabbix/zabbix_agentd.d/ root@Linux:/etc/zabbix/zabbix_agentd.d# ./redis_monitor.sh redis_status 6379 used_memory 859136 root@Linux:/etc/zabbix/zabbix_agentd.d# ./redis_monitor.sh redis_status 6379 connected_clients 1

3、添加zabbix agent自定义的监控项

root@Linux:~# vim /etc/zabbix/zabbix_agentd.conf root@Linux:~# grep -Ev "#|^$" /etc/zabbix/zabbix_agentd.conf PidFile=/tmp/zabbix_agentd.pid LogFile=/tmp/zabbix_agentd.log LogFileSize=0 Server=10.0.0.100,10.0.0.104 ListenPort=10050 ListenIP=0.0.0.0 StartAgents=3 ServerActive=10.0.0.104 Hostname=10.0.0.102 Timeout=30 AllowRoot=1 User=root Include=/etc/zabbix/zabbix_agentd.d/*.conf UserParameter=linux_status[*],/etc/zabbix/zabbix_agentd.d/tcp_conn_plugin.sh "$1" "$2" UserParameter=memcache_status[*],/etc/zabbix/zabbix_agentd.d/memcache_monitor.sh "$1" "$2" "$3" UserParameter=redis_status[*],/etc/zabbix/zabbix_agentd.d/redis_monitor.sh "$1" "$2" "$3" root@Linux:~# systemctl restart zabbix-agent

4、在zabbix server上测试是否可以获取到监控数据

root@zabbix-server:~# zabbix_get -s 10.0.0.102 -p 10050 -k "redis_status["redis_status","6379","used_memory"]" 859136 root@zabbix-server:~# zabbix_get -s 10.0.0.102 -p 10050 -k "redis_status["redis_status","6379","connected_clients"]" 1