Redis性能监控指标总结

slowlog-log-slower-than 1000 # 设置慢查询的时间下线，单位：微秒
slowlog-max-len 100 # 设置慢查询命令对应的日志显示长度，单位：命令数

./redis-cli info 按块获取信息 | grep 需要过滤的参数./redis-cli info stats | grep ops

#./redis-cli> info server

[root@CombCloud-2020110836 src]# ./redis-cli info | grep used | grep human       
used_memory_human:2.99M  # 内存分配器从操作系统分配的内存总量
used_memory_rss_human:8.04M  #操作系统看到的内存占用，top命令看到的内存
used_memory_peak_human:7.77M # redis内存消耗的峰值
used_memory_lua_human:37.00K   # lua脚本引擎占用的内存大小

[root@CombCloud-2020110836 src]# ./redis-cli info | grep blocked_clients
blocked_clients:0

[root@CombCloud-2020110836 src]# ./redis-cli info | grep evicted_keys
evicted_keys:0  #

[[email protected] src]# ./redis-cli info | grep
mem_fragmentation_ratiomem_fragmentation_ratio:2.74

[[email protected] src]# ./redis-cli info | grep 
used_memory:used_memory:3133624

[root@CombCloud-2020110836 src]# ./redis-cli info | grep connected_clients
connected_clients:1
[root@CombCloud-2020110836 src]# ./redis-cli info | grep connected 
 
connected_clients:1 # 客户端连接数量
connected_slaves:1 # slave连接数量

[root@CombCloud-2020110836 src]# ./redis-cli info | grep rdb_last_save_time
rdb_last_save_time:1591876204 # 最后一次持久化保存磁盘的时间戳
[root@CombCloud-2020110836 src]# ./redis-cli info | grep rdb_changes_since_last_save
rdb_changes_since_last_save:0 # 自最后一次持久化以来数据库的更改数

[[email protected] src]# ./redis-cli info | grep connected_clientsconnected_clients:1

[[email protected] src]# ./redis-cli info | grep keyspacekeyspace_misses:0

[[email protected] src]# ./redis-cli info | grep rdb_changes_since_last_saverdb_changes_since_last_save:0

[[email protected] src]# ./redis-cli info | grep backlog_sizerepl_backlog_size:1048576

[[email protected] src]# ./redis-cli info | grep sync_partial_errsync_partial_err:1

./redis-benchmark -c 100 -n 5000