Redis CONFIG RESETSTAT 命令
Redis 服务器Redis CONFIG RESETSTAT 命令用于重置 INFO 命令中的某些统计数据，包括：
- Keyspace hits (键空间命中次数)
- Keyspace misses (键空间不命中次数)
- Number of commands processed (执行命令的次数)
- Number of connections received (连接服务器的次数)
- Number of expired keys (过期key的数量)
- Number of rejected connections (被拒绝的连接数量)
- Latest fork(2) time(最后执行 fork(2) 的时间)
- The aof_delayed_fsync counter(aof_delayed_fsync 计数器的值)
1. 语法
redis CONFIG RESETSTAT 命令基本语法如下：
redis 127.0.0.1:6379> CONFIG RESETSTAT
2. 可用版本
>= 2.0.0
3. 返回值
总是返回 OK 。
4. 范例
重置前 INFO 命令输出信息：
redis 127.0.0.1:6379> INFO # Server redis_version:2.5.3 redis_git_sha1:d0407c2d redis_git_dirty:0 arch_bits:32 multiplexing_api:epoll gcc_version:4.6.3 process_id:11095 run_id:ef1f6b6c7392e52d6001eaf777acbe547d1192e2 tcp_port:6379 uptime_in_seconds:6 uptime_in_days:0 lru_clock:1205426 # Clients connected_clients:1 client_longest_output_list:0 client_biggest_input_buf:0 blocked_clients:0 # Memory used_memory:331076 used_memory_human:323.32K used_memory_rss:1568768 used_memory_peak:293424 used_memory_peak_human:286.55K used_memory_lua:16384 mem_fragmentation_ratio:4.74 mem_allocator:jemalloc-2.2.5 # Persistence loading:0 aof_enabled:0 changes_since_last_save:0 bgsave_in_progress:0 last_save_time:1333260015 last_bgsave_status:ok bgrewriteaof_in_progress:0 # Stats total_connections_received:1 total_commands_processed:0 instantaneous_ops_per_sec:0 rejected_connections:0 expired_keys:0 evicted_keys:0 keyspace_hits:0 keyspace_misses:0 pubsub_channels:0 pubsub_patterns:0 latest_fork_usec:0 # Replication role:master connected_slaves:0 # CPU used_cpu_sys:0.01 used_cpu_user:0.00 used_cpu_sys_children:0.00 used_cpu_user_children:0.00 # Keyspace db0:keys=20,expires=0 <p>执行重置命令：</p> <pre> redis 127.0.0.1:6379> CONFIG RESETSTAT OK
重置后查看 INFO 命令输出信息：
redis 127.0.0.1:6379> INFO # Server redis_version:2.5.3 redis_git_sha1:d0407c2d redis_git_dirty:0 arch_bits:32 multiplexing_api:epoll gcc_version:4.6.3 process_id:11095 run_id:ef1f6b6c7392e52d6001eaf777acbe547d1192e2 tcp_port:6379 uptime_in_seconds:134 uptime_in_days:0 lru_clock:1205438 # Clients connected_clients:1 client_longest_output_list:0 client_biggest_input_buf:0 blocked_clients:0 # Memory used_memory:331076 used_memory_human:323.32K used_memory_rss:1568768 used_memory_peak:330280 used_memory_peak_human:322.54K used_memory_lua:16384 mem_fragmentation_ratio:4.74 mem_allocator:jemalloc-2.2.5 # Persistence loading:0 aof_enabled:0 changes_since_last_save:0 bgsave_in_progress:0 last_save_time:1333260015 last_bgsave_status:ok bgrewriteaof_in_progress:0 # Stats total_connections_received:0 total_commands_processed:1 instantaneous_ops_per_sec:0 rejected_connections:0 expired_keys:0 evicted_keys:0 keyspace_hits:0 keyspace_misses:0 pubsub_channels:0 pubsub_patterns:0 latest_fork_usec:0 # Replication role:master connected_slaves:0 # CPU used_cpu_sys:0.05 used_cpu_user:0.02 used_cpu_sys_children:0.00 used_cpu_user_children:0.00 # Keyspace db0:keys=20,expires=0
Redis INFO 命令以一种易于理解和阅读的格式，返回关于 Redis 服务器的各种信息和统计数值。通过给定可选的参数 section ，可以让命令只返回某一部分的信息。redis INFO 命令基本语法如下：INFO [section]。返回值：字符串，文本行的集合。