Install on Ubuntu 16.04

  • install steps
$ wget
$ tar xvzf redis-stable.tar.gz
$ cd redis-stable
$ make

# install at least tcl 8.5 version
$ sudo apt-get install tcl8.5-dev

# check whether the build works
$ make test
  • all binaries built completely would exist on redis-stable/src folder
binary description
redis-server the Redis Server itself
redis-sentinel the Redis Sentinel executable (monitoring and failover)
redis-cli the command line interface utility to talk with Redis
redis-benchmark used to check Redis performances
redis-check-aof and redis-check-dump useful in the rare event of corrupted data files
  • Copy both Redis server and the command line interface to the proper places
$ sudo cp src/redis-server /usr/local/bin/
$ sudo cp src/redis-cli /usr/local/bin/

Start and Login the server

  • start the server
# without configuration
$ redis-server

# with configuration
$ redis-server /path/to/your/config/file
  • check the server is still available
# this should return a message "PONG"
$ redis-cli ping
  • login the server
$ redis-cli

Basic Data Types

type description
Binary-safe strings Redis keys are binary safe, from string data type to image data type. (max size : 512 MB)
Lists collections of string elements sorted according to the order of insertion
Sets collections of unique, unsorted string elements
Sorted sets similar to Sets but where every string element is associated to a floating number value, called score
Hashes very similar to Ruby or Python hashes
Bit arrays (or simply bitmaps) an array of bits
HyperLogLogs used to check Redis performances

Configure Redis

  • Default conf file path : /install/root/path/redis_stable/redis.conf
    • bind : default bind ip or for all interfaces
    • port 6379 : default service port
    • requirepass : modify foobared with "examplePWD"
    • daemonize : modify no with yes (standalone), but keep no in daemon (background service)
    • stop-writes-on-bgsave-error : modify to no to avoid MISCONF issue.

Run at startup as the service

  • Create a configuration file
$ sudo vim /etc/systemd/system/redis.service
  • Write the following content
    • Notice the daemonize in the configuration must be no.
    • the [Unit] section by adding a description and defining a requirement that networking be available before starting this service
    • the [Service] section, we need to specify the service's behavior. For security purposes, we should not run our service as root
    • the [Install] section, we can define the systemd target that the service should attach to if enabled
Description=Redis In-Memory Data Store

ExecStart=/usr/local/bin/redis-server /path/to/your/redis-stable/redis.conf
ExecStop=/usr/local/bin/redis-cli shutdown

  • Create the Redis User, Group and Directories
sudo adduser --system --group --no-create-home redis
sudo mkdir /var/lib/redis
sudo chown redis:redis /var/lib/redis
sudo chmod 770 /var/lib/redis
sudo passwd redis
  • Control the service
# 服務管理
sudo systemctl start redis
sudo systemctl stop redis
sudo systemctl restart redis
sudo systemctl status redis

# 開機啟動
sudo systemctl enable redis
sudo systemctl disable redis

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