Redis CONFIG RESETSTAT 命令
Redis CONFIG RESETSTAT 命令用于重置 INFO 命令中的某些统计数据
( Redis >= 2.0.0 )
重置的统计项包括：
- 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)
- Theaof_delayed_fsynccounter(aof_delayed_fsync计数器的值)
语法
Redis CONFIG RESETSTAT 命令语法如下：
127.0.0.1:6379> CONFIG RESETSTAT
返回值
总是返回 OK
范例
重置前 INFO 命令输出信息：
127.0.0.1:6379> INFO # Server redis_version:3.0.7 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:aa27a151289c9b98 redis_mode:standalone os:Darwin 16.7.0 x86_64 arch_bits:64 multiplexing_api:kqueue gcc_version:4.2.1 process_id:711 run_id:8f913d7ab320cc71443218a76d9a8c04beda6f68 tcp_port:6379 uptime_in_seconds:2256955 uptime_in_days:26 hz:10 lru_clock:10230461 config_file:/usr/local/etc/redis.conf # Clients connected_clients:1 client_longest_output_list:0 client_biggest_input_buf:0 blocked_clients:0 # Memory used_memory:2057488 used_memory_human:1.96M used_memory_rss:512000 used_memory_peak:2082896 used_memory_peak_human:1.99M used_memory_lua:36864 mem_fragmentation_ratio:0.25 mem_allocator:libc # Persistence loading:0 rdb_changes_since_last_save:0 rdb_bgsave_in_progress:0 rdb_last_save_time:1503401928 rdb_last_bgsave_status:ok rdb_last_bgsave_time_sec:0 rdb_current_bgsave_time_sec:-1 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 # Stats total_connections_received:8 total_commands_processed:502 instantaneous_ops_per_sec:0 total_net_input_bytes:20165 total_net_output_bytes:8412 instantaneous_input_kbps:0.00 instantaneous_output_kbps:0.00 rejected_connections:0 sync_full:4 sync_partial_ok:0 sync_partial_err:0 expired_keys:5 evicted_keys:0 keyspace_hits:141 keyspace_misses:18 pubsub_channels:0 pubsub_patterns:0 latest_fork_usec:610 migrate_cached_sockets:0 # Replication role:master connected_slaves:0 master_repl_offset:4424 repl_backlog_active:1 repl_backlog_size:1048576 repl_backlog_first_byte_offset:2 repl_backlog_histlen:4423 # CPU used_cpu_sys:365.73 used_cpu_user:161.94 used_cpu_sys_children:0.08 used_cpu_user_children:0.02 # Cluster cluster_enabled:0 # Keyspace db0:keys=1,expires=0,avg_ttl=0 127.0.0.1:6379> clear 127.0.0.1:6379> DBSIZE (integer) 1 127.0.0.1:6379> FLUSHDB OK 127.0.0.1:6379> dbsize (integer) 0 127.0.0.1:6379> set name "luoyemo" OK 127.0.0.1:6379> set site "www.twle.cn" OK 127.0.0.1:6379> site age "28" (error) ERR unknown command 'site' 127.0.0.1:6379> set age 28 OK 127.0.0.1:6379> save OK 127.0.0.1:6379> DBSIZE (integer) 3 127.0.0.1:6379> SELECT 1 OK 127.0.0.1:6379[1]> DBSIZE (integer) 0 127.0.0.1:6379[1]> SADD language PHP (integer) 1 127.0.0.1:6379[1]> SADD language Python27 (integer) 1 127.0.0.1:6379[1]> SADD language JAVA (integer) 1 127.0.0.1:6379[1]> DBSIZE (integer) 1 127.0.0.1:6379[1]> FLUSHALL OK 127.0.0.1:6379[1]> DBSIZE (integer) 0 127.0.0.1:6379[1]> SELECT 0 OK 127.0.0.1:6379> DBSIZE (integer) 0 127.0.0.1:6379> DEBUG SEGFAULT Could not connect to Redis at 127.0.0.1:6379: Connection refused not connected> exit # luojianguo @ lie in ~ [21:49:46] $ redis-cli 127.0.0.1:6379> DEBUG OBJECT my_pc (error) ERR no such key 127.0.0.1:6379> DEBUG OBJECT your_pc (error) ERR no such key 127.0.0.1:6379> SET site "www.twle.cn" OK 127.0.0.1:6379> DEBUG OBJECT site Value at:0x7ff20c50a490 refcount:1 encoding:embstr serializedlength:12 lru:10237964 lru_seconds_idle:11 127.0.0.1:6379> FLUSHALL OK 127.0.0.1:6379> FLUSHALL OK 127.0.0.1:6379> DBSIZE (integer) 0 127.0.0.1:6379> SET site "www.twle.cn" OK 127.0.0.1:6379> DBSIZE (integer) 1 127.0.0.1:6379> SET site_url "https://wwww.twle.cn/" OK 127.0.0.1:6379> DBSIZE (integer) 2 127.0.0.1:6379> CONFIG GET slowlog-max-len 1) "slowlog-max-len" 2) "128" 127.0.0.1:6379> CONFIG SET slowlog-max-len 10010 OK 127.0.0.1:6379> CONFIG GET slowlog-max-len 1) "slowlog-max-len" 2) "10010" 127.0.0.1:6379> CONFIG GET appendonly 1) "appendonly" 2) "no" 127.0.0.1:6379> CONFIG SET appendonly yes OK 127.0.0.1:6379> CONFIG GET appendonly 1) "appendonly" 2) "yes" 127.0.0.1:6379> clear 127.0.0.1:6379> INFO # Server redis_version:3.0.7 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:aa27a151289c9b98 redis_mode:standalone os:Darwin 16.7.0 x86_64 arch_bits:64 multiplexing_api:kqueue gcc_version:4.2.1 process_id:93638 run_id:ab7d112e682c61869b55110b81dca4ebb00beabd tcp_port:6379 uptime_in_seconds:2114 uptime_in_days:0 hz:10 lru_clock:10239661 config_file:/usr/local/etc/redis.conf # Clients connected_clients:1 client_longest_output_list:0 client_biggest_input_buf:0 blocked_clients:0 # Memory used_memory:1010256 used_memory_human:986.58K used_memory_rss:1032192 used_memory_peak:1010256 used_memory_peak_human:986.58K used_memory_lua:36864 mem_fragmentation_ratio:1.02 mem_allocator:libc # Persistence loading:0 rdb_changes_since_last_save:0 rdb_bgsave_in_progress:0 rdb_last_save_time:1503411410 rdb_last_bgsave_status:ok rdb_last_bgsave_time_sec:0 rdb_current_bgsave_time_sec:-1 aof_enabled:1 aof_rewrite_in_progress:0 aof_rewrite_scheduled:0 aof_last_rewrite_time_sec:0 aof_current_rewrite_time_sec:-1 aof_last_bgrewrite_status:ok aof_last_write_status:ok aof_current_size:119 aof_base_size:119 aof_pending_rewrite:0 aof_buffer_length:0 aof_rewrite_buffer_length:0 aof_pending_bio_fsync:0 aof_delayed_fsync:0 # Stats total_connections_received:1 total_commands_processed:17 instantaneous_ops_per_sec:0 total_net_input_bytes:637 total_net_output_bytes:320 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 evicted_keys:0 keyspace_hits:0 keyspace_misses:0 pubsub_channels:0 pubsub_patterns:0 latest_fork_usec:719 migrate_cached_sockets:0 # Replication role:master connected_slaves:0 master_repl_offset:0 repl_backlog_active:0 repl_backlog_size:1048576 repl_backlog_first_byte_offset:0 repl_backlog_histlen:0 # CPU used_cpu_sys:0.89 used_cpu_user:0.41 used_cpu_sys_children:0.00 used_cpu_user_children:0.00 # Cluster cluster_enabled:0 # Keyspace db0:keys=2,expires=0,avg_ttl=0
重置后查看 INFO 命令输出信息：
127.0.0.1:6379> CONFIG RESETSTAT OK 127.0.0.1:6379> INFO # Server redis_version:3.0.7 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:aa27a151289c9b98 redis_mode:standalone os:Darwin 16.7.0 x86_64 arch_bits:64 multiplexing_api:kqueue gcc_version:4.2.1 process_id:93638 run_id:ab7d112e682c61869b55110b81dca4ebb00beabd tcp_port:6379 uptime_in_seconds:2189 uptime_in_days:0 hz:10 lru_clock:10239736 config_file:/usr/local/etc/redis.conf # Clients connected_clients:1 client_longest_output_list:0 client_biggest_input_buf:0 blocked_clients:0 # Memory used_memory:1010256 used_memory_human:986.58K used_memory_rss:1101824 used_memory_peak:1010256 used_memory_peak_human:986.58K used_memory_lua:36864 mem_fragmentation_ratio:1.09 mem_allocator:libc # Persistence loading:0 rdb_changes_since_last_save:0 rdb_bgsave_in_progress:0 rdb_last_save_time:1503411410 rdb_last_bgsave_status:ok rdb_last_bgsave_time_sec:0 rdb_current_bgsave_time_sec:-1 aof_enabled:1 aof_rewrite_in_progress:0 aof_rewrite_scheduled:0 aof_last_rewrite_time_sec:0 aof_current_rewrite_time_sec:-1 aof_last_bgrewrite_status:ok aof_last_write_status:ok aof_current_size:119 aof_base_size:119 aof_pending_rewrite:0 aof_buffer_length:0 aof_rewrite_buffer_length:0 aof_pending_bio_fsync:0 aof_delayed_fsync:0 # Stats total_connections_received:0 total_commands_processed:1 instantaneous_ops_per_sec:0 total_net_input_bytes:14 total_net_output_bytes:5 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 evicted_keys:0 keyspace_hits:0 keyspace_misses:0 pubsub_channels:0 pubsub_patterns:0 latest_fork_usec:0 migrate_cached_sockets:0 # Replication role:master connected_slaves:0 master_repl_offset:0 repl_backlog_active:0 repl_backlog_size:1048576 repl_backlog_first_byte_offset:0 repl_backlog_histlen:0 # CPU used_cpu_sys:0.92 used_cpu_user:0.42 used_cpu_sys_children:0.00 used_cpu_user_children:0.00 # Cluster cluster_enabled:0 # Keyspace db0:keys=2,expires=0,avg_ttl=0