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Redis Server

Redis server commands are primarily used to manage the Redis service.

Example

The following example demonstrates how to obtain statistics 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 commands related to the Redis server:

Number Command and Description
1 BGREWRITEAOF <br>Asynchronously rewrite the AOF (AppendOnly File)
2 BGSAVE <br>Asynchronously save the dataset to disk in the background
3 CLIENT KILL [ip:port] [ID client-id] <br>Close client connection
4 CLIENT LIST <br>Get the list of client connections to the server
5 CLIENT GETNAME <br>Get the connection name
6 CLIENT PAUSE timeout <br>Suspend commands from clients for a specified period
7 CLIENT SETNAME connection-name <br>Set the name of the current connection
8 CLUSTER SLOTS <br>Get the array of cluster node mappings
9 COMMAND <br>Get the array of Redis command details
10 COMMAND COUNT <br>Get the total number of Redis commands
11 COMMAND GETKEYS <br>Get all keys of the given command
12 TIME <br>Return the current server time
13 COMMAND INFO command-name [command-name ...] <br>Get the array of descriptions for specified Redis commands
14 CONFIG GET parameter <br>Get the value of the specified configuration parameter
15 CONFIG REWRITE <br>Rewrite the redis.conf file with the configuration specified when starting the Redis server
16 CONFIG SET parameter value <br>Modify redis configuration parameters without restarting
17 CONFIG RESETSTAT <br>Reset some statistics in the INFO command
18 DBSIZE <br>Return the number of keys in the current database
19 DEBUG OBJECT key <br>Get debugging information about a key
20 DEBUG SEGFAULT <br>Make the Redis service crash
21 FLUSHALL <br>Remove all keys from all databases
22 FLUSHDB <br>Remove all keys from the current database
23 INFO [section] <br>Get various information and statistics about the Redis server
24 LASTSAVE <br>Return the time of the last successful data save to disk, in UNIX timestamp format
25 MONITOR <br>Real-time printing of commands received by the Redis server, for debugging
26 ROLE <br>Return the role of the instance in the context of replication
27 SAVE <br>Synchronously save data to disk
28 SHUTDOWN [NOSAVE] [SAVE] <br>Asynchronously save data to disk and then shut down the server
29 SLAVEOF host port <br>Make the current server a slave of the specified server
30 SLOWLOG subcommand [argument] <br>Manage Redis slow logs
31 SYNC <br>Internal command used for replication
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