YouTip

Redis server commands are primarily used to manage the Redis service. ### Example The following example demonstrates how to retrieve statistical information about the Redis server: 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 * * * ## Redis Server Commands The table below lists Redis server-related commands: | No. | Command and Description | | --- | --- | | 1 | (#) Asynchronously rewrites the append-only file (AOF). | | 2 | (#) Asynchronously saves the current database’s data to disk in the background. | | 3 | [CLIENT KILL [ip:port] ](#) Closes a client connection. | | 4 | (#) Returns a list of client connections connected to the server. | | 5 | (#) Gets the name of the current connection. | | 6 | (#) Pauses command processing from clients for the specified duration. | | 7 | (#) Sets the name of the current connection. | | 8 | (#) Returns an array of cluster node mappings. | | 9 | (#) Returns an array containing details about Redis commands. | | 10 | (#) Returns the total number of Redis commands. | | 11 | (#) Returns all keys associated with a given command. | | 12 | (#) Returns the current server time. | | 13 | [COMMAND INFO command-name [command-name ...]](#) Returns an array describing one or more Redis commands. | | 14 | (#) Returns the value of a specific configuration parameter. | | 15 | (#) Rewrites the redis.conf configuration file used to start the Redis server. | | 16 | (#) Modifies a Redis configuration parameter without requiring a restart. | | 17 | (#) Resets certain statistics returned by the INFO command. | | 18 | (#) Returns the number of keys in the current database. | | 19 | (#) Retrieves debugging information about a key. | | 20 | (#) Causes the Redis server to crash. | | 21 | (#) Deletes all keys from all databases. | | 22 | (#) Deletes all keys from the current database. | | 23 | [INFO ](#) Returns various types of information and statistics about the Redis server. | | 24 | (#) Returns the UNIX timestamp of the last successful save of data to disk. | | 25 | (#) Logs all commands received by the Redis server in real time (for debugging). | | 26 | (#) Returns the role (master/slave) of the instance. | | 27 | (#) Synchronously saves data to disk. | | 28 | [SHUTDOWN ](#) Saves data to disk asynchronously and then shuts down the server. | | 29 | (#) Configures the current server as a slave of the specified server. | | 30 | [SLOWLOG subcommand ](#) Manages Redis’s slow log. | | 31 | (#) An internal command used for replication. |