RedisHow-ToBeginner · 3 min read

How to Use INFO Command in Redis: Syntax and Examples

Use the INFO command in Redis to get detailed information and statistics about the server and its databases. You can run INFO alone to get all info or specify a section like INFO memory to get specific details.

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Syntax

The INFO command can be used in two ways:

INFO: Returns all information sections.
INFO <section>: Returns information only about the specified section.

Common sections include server, clients, memory, persistence, stats, replication, cpu, cluster, and keyspace.

redis

INFO
INFO memory

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Example

This example shows how to get all server information and then only memory-related info using the INFO command.

redis

127.0.0.1:6379> INFO
# Server
redis_version:7.0.11
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:...
# Clients
connected_clients:1
# Memory
used_memory:1024000
used_memory_human:1000K
# Keyspace
db0:keys=5,expires=0,avg_ttl=0

127.0.0.1:6379> INFO memory
# Memory
used_memory:1024000
used_memory_human:1000K
used_memory_rss:2048000
used_memory_peak:1536000
used_memory_peak_human:1.5M

Output

# Server redis_version:7.0.11 redis_git_sha1:00000000 redis_git_dirty:0 redis_build_id:... # Clients connected_clients:1 # Memory used_memory:1024000 used_memory_human:1000K # Keyspace db0:keys=5,expires=0,avg_ttl=0 # Memory used_memory:1024000 used_memory_human:1000K used_memory_rss:2048000 used_memory_peak:1536000 used_memory_peak_human:1.5M

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Common Pitfalls

Some common mistakes when using INFO include:

Expecting JSON or structured output: INFO returns plain text with key-value pairs, not JSON.
Using incorrect section names: Section names are case-insensitive but must be valid (e.g., memory, not mem).
Running INFO on a busy server may cause slight performance impact because it collects many stats.

redis

Wrong:
INFO mem

Right:
INFO memory

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Quick Reference

Command	Description
INFO	Returns all server and database information
INFO server	Returns server-related info like Redis version
INFO clients	Shows connected clients info
INFO memory	Shows memory usage statistics
INFO persistence	Shows RDB and AOF persistence info
INFO stats	General statistics like commands processed
INFO replication	Replication and role info
INFO cpu	CPU usage statistics
INFO keyspace	Database keys and expiration info

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Key Takeaways

Use INFO to get detailed Redis server and database stats.

Specify a section name with INFO to get focused information.

Section names are case-insensitive but must be valid to avoid errors.

The output is plain text, not JSON, so parse accordingly.

Running INFO on busy servers may slightly affect performance.