Redis服务器介绍及相关方法介绍笔记--服务器常用命令

 

Redis服务器相关命令

 

下面切入正题咯：

 

 常用服务器命令总结(自用总结 不喜勿喷)：

命令1：ping

测试连接是否存活

返回pong则证明连接正常

127.0.0.1:6379> ping

 

PONG

redis-server关闭时情况：

not connected> ping

 Could not connect to Redis at 127.0.0.1:6379: Connection refused

 

命令2：quit或exit

退出当前连接

127.0.0.1:6379> quit

macmini:redis-2.8.21 zhongyinghao$ redis-cli 

127.0.0.1:6379> exit

 macmini:redis-2.8.21 zhongyinghao$ redis-cli 

 

命令3：dbsize

返回当前数据库中的key数量

127.0.0.1:6379> dbsize

 (integer) 15

 

命令4：info

获取当前服务器的信息统计

127.0.0.1:6379> info

# Server

redis_version:2.8.21

redis_git_sha1:00000000

redis_git_dirty:0

redis_build_id:a17da468d2eeb223

redis_mode:standalone

os:Darwin 14.1.0 x86_64

arch_bits:64

multiplexing_api:kqueue

gcc_version:4.2.1

process_id:475

run_id:17139c7a418b988830c714885a368c20e32daef0

tcp_port:6379

uptime_in_seconds:406

uptime_in_days:0

hz:10

lru_clock:13313061

config_file:

 

# Clients

connected_clients:1

client_longest_output_list:0

client_biggest_input_buf:0

blocked_clients:0

 

# Memory

used_memory:1006608

used_memory_human:983.02K

used_memory_rss:1822720

used_memory_peak:1006608

used_memory_peak_human:983.02K

used_memory_lua:36864

mem_fragmentation_ratio:1.81

mem_allocator:libc

 

# Persistence

loading:0

rdb_changes_since_last_save:0

rdb_bgsave_in_progress:0

rdb_last_save_time:1439376015

rdb_last_bgsave_status:ok

rdb_last_bgsave_time_sec:-1

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:3

total_commands_processed:2

instantaneous_ops_per_sec:0

total_net_input_bytes:82

total_net_output_bytes:80

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

 

# 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:0.26

used_cpu_user:0.09

used_cpu_sys_children:0.00

used_cpu_user_children:0.00

 

# Keyspace

db0:keys=15,expires=0,avg_ttl=0

 

db15:keys=1,expires=0,avg_ttl=0

 

命令5：config ge

实时传出收到的请求

127.0.0.1:6379> config get timeout

1) "timeout"

 2) “0"

 

127.0.0.1:6379> config get *

  1) "dbfilename"

  2) "dump.rdb"

  3) "requirepass"

  4) ""

  5) "masterauth"

  6) ""

 7) "unixsocket"

 

命令6：flushdb

删除当前数据库中的所有内容

127.0.0.1:6379> select 1

OK

127.0.0.1:6379[1]> flushdb

OK

127.0.0.1:6379[1]> keys *

 

(empty list or set)

 

命令7：flushall

删除所有数据库中的所有key

即删除0~15号数据库中所有的key

127.0.0.1:6379[1]> flushall

OK

127.0.0.1:6379[1]> keys *

(empty list or set)

127.0.0.1:6379> select 0

OK

127.0.0.1:6379> keys *

(empty list or set)