Redis Server command - Lệnh quản lý Redis
Redis server command được sử dụng để quản lý Redis server.
Ví dụ;
redis 127.0.0.1:6379> INFO
# Server
redis_version:2.8.13
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:c2238b38b1edb0e2
redis_mode:standalone
os:Linux 3.5.0-48-generic x86_64
arch_bits:64
multiplexing_api:epoll
gcc_version:4.7.2
process_id:3856
run_id:0e61abd297771de3fe812a3c21027732ac9f41fe
tcp_port:6379
uptime_in_seconds:11554
uptime_in_days:0 hz:10
lru_clock:16651447
config_file:
# Clients
connected_clients:1
client_longest_output_list:0
client_biggest_input_buf:0
blocked_clients:0
# Memory
used_memory:589016
used_memory_human:575.21K
used_memory_rss:2461696
used_memory_peak:667312
used_memory_peak_human:651.67K
used_memory_lua:33792
mem_fragmentation_ratio:4.18
mem_allocator:jemalloc-3.6.0
# Persistence
loading:0
rdb_changes_since_last_save:3
rdb_bgsave_in_progress:0
rdb_last_save_time:1409158561
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:24
total_commands_processed:294
instantaneous_ops_per_sec:0
rejected_connections:0
sync_full:0
sync_partial_ok:0
sync_partial_err:0
expired_keys:0
evicted_keys:0
keyspace_hits:41
keyspace_misses:82
pubsub_channels:0
pubsub_patterns:0
latest_fork_usec:264
# 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:10.49
used_cpu_user:4.96
used_cpu_sys_children:0.00
used_cpu_user_children:0.01
# Keyspace
db0:keys = 94,expires = 1,avg_ttl = 41638810
db1:keys = 1,expires = 0,avg_ttl = 0
db3:keys = 1,expires = 0,avg_ttl = 0 Các command cơ bản:
| STT | Command | Mô tả |
|---|---|---|
| 1 | BGREWRITEAOF | Asynchronously rewrites the append-only file |
| 2 | BGSAVE | Asynchronously saves the dataset to the disk |
| 3 | CLIENT KILL [ip:port] [ID client-id] | Kills the connection of a client |
| 4 | CLIENT LIST | Gets the list of client connections to the server |
| 5 | CLIENT GETNAME | Gets the name of the current connection |
| 6 | CLIENT PAUSE timeout | Stops processing commands from the clients for a specified time |
| 7 | CLIENT SETNAME connection-name | Sets the current connection name |
| 8 | CLUSTER SLOTS | Gets an array of Cluster slot to node mappings |
| 9 | COMMAND | Gets an array of Redis command details |
| 10 | COMMAND COUNT | Gets total number of Redis commands |
| 11 | COMMAND GETKEYS | Extracts the keys given a full Redis command |
| 12 | BGSAVE | Asynchronously saves the dataset to the disk |
| 13 | COMMAND INFO command-name [command-name ...] | Gets an array of specific Redis command details |
| 14 | CONFIG GET parameter | Gets the value of a configuration parameter |
| 15 | CONFIG REWRITE | Rewrites the configuration file with the in-memory configuration |
| 16 | CONFIG SET parameter value | Sets a configuration parameter to the given value |
| 17 | CONFIG RESETSTAT | Resets the stats returned by INFO |
| 18 | DBSIZE | Returns the number of keys in the selected database |
| 19 | DEBUG OBJECT key | Gets debugging information about a key |
| 20 | DEBUG SEGFAULT | Makes the server crash |
| 21 | FLUSHALL | Removes all the keys from all databases |
| 22 | FLUSHDB | Removes all the keys from the current database |
| 23 | INFO [section] | Gets information and statistics about the server |
| 24 | LASTSAVE | Gets the UNIX time stamp of the last successful save to the disk |
| 25 | MONITOR | Listens for all the requests received by the server in real time |
| 26 | ROLE | Returns the role of the instance in the context of replication |
| 27 | SAVE | Synchronously saves the dataset to the disk |
| 28 | SHUTDOWN [NOSAVE] [SAVE] | Synchronously saves the dataset to the disk and then shuts down the server |
| 29 | SLAVEOF host port | Makes the server a slave of another instance, or promotes it as a master |
| 30 | SLOWLOG subcommand [argument] | Manages the Redis slow queries log |
| 31 | SYNC | Command used for replication |
| 32 | TIME | Returns the current server time |
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