redis是我们常用的数据中间件，在目前大多项目中经常会使用到，所以使用zabbix对他进行监控还是非常又必须要的，我们这里来看看具体操作过程，以下操作过程目录约束为/usr/local/redis，admin123为我的redis认证密码
获取redis状态和性能有一个命令可以直接获取
/usr/local/redis/src/redis-cli -a admin123 info
返回
# Server redis_version:5.0.5 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:c311aecb128c60c7 redis_mode:standalone os:Linux 3.10.0-1062.4.1.el7.x86_64 x86_64 arch_bits:64 multiplexing_api:epoll atomicvar_api:atomic-builtin gcc_version:4.8.5 process_id:8464 run_id:1a4ccec5e9afabc0795c33706a6b640eb7f24d36 tcp_port:6379 uptime_in_seconds:240688 uptime_in_days:2 hz:10 configured_hz:10 lru_clock:12985805 executable:/usr/local/redis/src/redis-server config_file:/usr/local/redis/redis.conf # Clients connected_clients:3 client_recent_max_input_buffer:2 client_recent_max_output_buffer:0 blocked_clients:0 # Memory used_memory:897792 used_memory_human:876.75K used_memory_rss:2420736 used_memory_rss_human:2.31M used_memory_peak:958824 used_memory_peak_human:936.35K used_memory_peak_perc:93.63% used_memory_overhead:875178 used_memory_startup:791408 used_memory_dataset:22614 used_memory_dataset_perc:21.26% allocator_allocated:908448 allocator_active:1200128 allocator_resident:3637248 total_system_memory:3973505024 total_system_memory_human:3.70G used_memory_lua:37888 used_memory_lua_human:37.00K 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:1.32 allocator_frag_bytes:291680 allocator_rss_ratio:3.03 allocator_rss_bytes:2437120 rss_overhead_ratio:0.67 rss_overhead_bytes:-1216512 mem_fragmentation_ratio:2.90 mem_fragmentation_bytes:1586088 mem_not_counted_for_evict:0 mem_replication_backlog:0 mem_clients_slaves:0 mem_clients_normal:83538 mem_aof_buffer:0 mem_allocator:jemalloc-5.1.0 active_defrag_running:0 lazyfree_pending_objects:0 # Persistence loading:0 rdb_changes_since_last_save:9 rdb_bgsave_in_progress:0 rdb_last_save_time:1573047413 rdb_last_bgsave_status:err rdb_last_bgsave_time_sec:0 rdb_current_bgsave_time_sec:-1 rdb_last_cow_size:327680 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:85 total_commands_processed:29329 instantaneous_ops_per_sec:0 total_net_input_bytes:15500685 total_net_output_bytes:15831330 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:1 keyspace_misses:0 pubsub_channels:1 pubsub_patterns:0 latest_fork_usec:234 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:9517449c3c3cb4612c6a2f1ba8c70be50ace5cec 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:140.940998 used_cpu_user:167.580463 used_cpu_sys_children:6.004816 used_cpu_user_children:10.418545 # Cluster cluster_enabled:0 # Keyspace db0:keys=5,expires=0,avg_ttl=0
如果是单纯的获取redis是否在线可以使用
/usr/local/redis/src/redis-cli -a admin123 ping
了解了以上的一些基础命令，我们就要开始配置zabbix-agent和数据收集脚本了
主要添加/etc/zabbix/zabbix_agentd.d/redis_status.conf，内容如下
UserParameter=redis.ping,/usr/local/redis/src/redis-cli -a admin123 ping 2>&1 | grep -c PONG UserParameter=redis.status[*],/etc/zabbix/script/resdis_status.sh $1 $2
别忘记如果需要使用自定义的参数还需要修改/etc/zabbix/zabbix_agentd.conf文件
UnsafeUserParameters=1
然后我们开始编写脚本
#vi /etc/zabbix/script/resdis_status.sh
#! /bin/bash
redis_cli="/usr/local/redis/src/redis-cli"
redis_host="127.26.61.61"
redis_port=6379
if [[ $# == 1 ]];then
case $1 in
version)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "redis_version" | awk -F':' '{print $2}'`
echo $result
;;
uptime)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "uptime_in_seconds" | awk -F':' '{print $2}'`
echo $result
;;
connected_clients)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "connected_clients" | awk -F':' '{print $2}'`
echo $result
;;
blocked_clients)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "blocked_clients" | awk -F':' '{print $2}'`
echo $result
;;
used_memory)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "used_memory" | awk -F':' '{print $2}'`
echo $result
;;
used_memory_rss)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "used_memory_rss" | awk -F':' '{print $2}'`
echo $result
;;
used_memory_peak)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "used_memory_peak" | awk -F':' '{print $2}'`
echo $result
;;
used_memory_lua)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "used_memory_lua" | awk -F':' '{print $2}'`
echo $result
;;
used_cpu_sys)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "used_cpu_sys" | awk -F':' '{print $2}'`
echo $result
;;
used_cpu_user)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "used_cpu_user" | awk -F':' '{print $2}'`
echo $result
;;
used_cpu_sys_children)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "used_cpu_sys_children" | awk -F':' '{print $2}'`
echo $result
;;
used_cpu_user_children)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "used_cpu_user_children" | awk -F':' '{print $2}'`
echo $result
;;
rdb_last_bgsave_status)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "rdb_last_bgsave_status" | awk -F':' '{print $2}' | grep -c ok`
echo $result
;;
aof_last_bgrewrite_status)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "aof_last_bgrewrite_status" | awk -F':' '{print $2}' | grep -c ok`
echo $result
;;
aof_last_write_status)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "aof_last_write_status" | awk -F':' '{print $2}' | grep -c ok`
echo $result
;;
*)
echo -e "Usage: $0 {connected_clients|blocked_clients|used_memory|used_memory_rss|used_memory_peak|used_memory_lua|used_cpu_sys|used_cpu_user|used_cpu_sys_children|used_cpu_user_children|rdb_last_bgsave_status|aof_last_bgrewrite_status|aof_last_write_status}"
;;
esac
elif [[ $# == 2 ]];then
case $2 in
keys)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "$1" | grep -w "keys" | awk -F'=|,' '{print $2}'`
echo $result
;;
expires)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "$1" | grep -w "keys" | awk -F'=|,' '{print $4}'`
echo $result
;;
avg_ttl)
result=`$redis_cli -h $redis_host -p $redis_port info | grep -w "$1" | grep -w "avg_ttl" | awk -F'=|,' '{print $6}'`
echo $result
;;
*)
echo -e "Usage: $0 {db0 keys|db0 expires|db0 avg_ttl}"
;;
esac
fi以上脚本编写好了以后，我们可以使用zabbix_get进行测试下
zabbix_get -s 127.26.61.61 -k redis.ping #返回 1
返回1说明就是redis状态时在线
最后就是zabbix监控模板