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Redis Cheatsheet for macOS 🍎

Redis is a powerful in-memory datastore widely used for caching, pub/sub messaging, and more. This guide provides quick commands and tips for installing, managing, and using Redis on macOS.

Quick Tips

  • Default Port: Redis runs on port 6379 by default.
  • Logs Location: Check logs for debugging in /usr/local/var/log/redis.log.
  • Configuration File: The default configuration file is located at /usr/local/etc/redis.conf.
  • Access Control: Use the ACL Guide to configure users and permissions.
  • Stop Redis Safely: Always stop Redis using brew services stop redis or redis-cli shutdown to avoid data loss.
  • Redis CLI Help: Run redis-cli --help to see all available commands.

Useful Commands

Connect to Redis

redis-cli -h <host> -p <port>

Ping Redis

Check if Redis is running:

redis-cli ping
# Output: PONG

List Users

redis-cli ACL LIST

Monitor Commands

Log all commands received by Redis in real-time:

> redis-cli monitor
OK
1590445706.871636 [0 127.0.0.1:52583] "ping"
1590445716.910679 [0 127.0.0.1:52642] "flushall"
1590445814.170701 [0 127.0.0.1:53107] "incr" "visitor"
1590445893.336228 [0 127.0.0.1:53483] "publish" "channel" "hi"
1590445914.672421 [0 127.0.0.1:53591] "subscribe" "channel1"
1590445925.539757 [0 127.0.0.1:53639] "publish" "channel" "hey"

View Continuous Stats

> redis-cli --stat
------- data ------ --------------------- load -------------------- - child -
keys       mem      clients blocked requests            connections          
1          1.02M    1       0       0 (+0)              1           
1          1.02M    1       0       1 (+0)              1           
1          1.02M    1       0       2 (+1)              1           
1          1.02M    1       0       3 (+1)              1           
1          1.02M    1       0       4 (+1)              1

Flush All Data

Clear all keys in the current database:

redis-cli flushall

Increment a Key

redis-cli incr <key>

Publish a Message

Send a message to a channel:

redis-cli publish <channel> <message>

Installation

Install Redis via Homebrew

The easiest way to install Redis on macOS is using Homebrew:

brew install redis

Starting and Stopping Redis

Start Redis as a Foreground Process

Run the Redis server in the foreground:

 > redis-server

15594:C 25 May 2020 18:08:37.005 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
15594:C 25 May 2020 18:08:37.005 # Redis version=6.0.3, bits=64, commit=00000000, modified=0, pid=15594, just started
15594:C 25 May 2020 18:08:37.005 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf
15594:M 25 May 2020 18:08:37.006 * Increased maximum number of open files to 10032 (it was originally set to 8192).
                _._                                                  
           _.-``__ ''-._                                             
      _.-``    `.  `_.  ''-._           Redis 6.0.3 (00000000/0) 64 bit
  .-`` .-```.  ```\/    _.,_ ''-._                                   
 (    '      ,       .-`  | `,    )     Running in standalone mode
 |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379
 |    `-._   `._    /     _.-'    |     PID: 15594
  `-._    `-._  `-./  _.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |           http://redis.io        
  `-._    `-._`-.__.-'_.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |                                  
  `-._    `-._`-.__.-'_.-'    _.-'                                   
      `-._    `-.__.-'    _.-'                                       
          `-._        _.-'                                           
              `-.__.-'                                               

15594:M 25 May 2020 18:08:37.007 # Server initialized
15594:M 25 May 2020 18:08:37.008 * Ready to accept connections
  • To exit: Press Ctrl + C.

Start/Stop Redis as a Background Service

Use Homebrew services to manage Redis as a background service:

brew services start redis   # Start Redis
brew services stop redis    # Stop Redis
brew services restart redis # Restart Redis

Check Running Services

List all services managed by Homebrew:

brew services list

Configuration

Edit Redis Configuration

To customize Redis settings, edit the configuration file:

/usr/local/etc/redis.conf
  • After making changes, restart Redis: 
    brew services restart redis

For more details on configuration, see the Redis Configuration Guide.

Useful Aliases

Add these aliases to your ~/.zshrc or ~/.bash_profile for quick Redis management:

alias redis-start="brew services start redis"
alias redis-stop="brew services stop redis"
alias redis-restart="brew services restart redis"
alias redis-monitor="redis-cli monitor"

Redis is now ready to supercharge your development workflow! 🚀 For more commands and advanced usage, check the Redis CLI Documentation.