Redis Server: INFO

Redis INFO Command

Redis INFO command returns information and statistics about the server in such a format that is simple to parse by computers and easy to read by humans.

There are some optional parameters which are shown below:

Here are the optional parameters below, that can be used to select a specific section of information:

• server: General information about the Redis server
• clients: Client connections section
• memory: Memory consumption related information
• persistence: RDB and AOF related information
• stats: General statistics
• replication: Master/slave replication information
• cpu: CPU consumption statistics
• commandstats: Redis command statistics
• cluster: Redis Cluster section
• keyspace: Database related statistics
• all: Return all sections
• default: Return only the default set of sections

Here are some common uses and scenarios for the "INFO" command:

• Server Statistics: Provides detailed information about the server’s state, including memory usage, CPU load, and connected clients.
• Performance Monitoring: Useful for monitoring server performance and health metrics, such as keyspace hits, misses, and eviction statistics.
• Configuration Overview: Displays configuration details and operational parameters of the Redis instance.
• Troubleshooting: Assists in diagnosing issues by offering insights into server performance and error logs.

Syntax:

redis 127.0.0.1:6379> INFO

Available since

1.0.0.

Return Value

default: Return only the default set of sections

Example: Redis INFO

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

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