$ sudo systemctl start redis-serverĮnable the service so that it automatically starts when the server reboots, $ sudo systemctl enable redis-serverĪlso, check the status of Redis server, $ sudo systemctl status redis-server Now, start the Redis server by entering the following command. When an update is completed, install Redis using the apt package manager, $ sudo apt install redis -yĪfter the installation is completed, check the version, $ redis-cli -v To install Redis on Ubuntu first make your system up to date. In this article, I’m going to install the latest version of Redis service on Ubuntu 20.04 and configure it. Noeviction : None of the keys are expired, just return write operation. Volatile_ttl : Remove nearest expire time keys ie. Volatiel_random : Remove random key with an expire setĪllkeys_random : Keys are removed randomly without expire set Volatile-lru : remove the (LRU) less recently used keys first which has an expire setĪllkeys_lru : remove the less recently used keys first regardless of expire set The following are supported maxmemory policy algorithms:. To refresh the storage at Redis maxmemory policy is used. When running the applications, the memory is occupied. Normally, some GB of RAM is allocated to Redis. Data structures such as hashes, lists, sorted sets, strings, sets, are supported by Redis. It helps to reduce time delays and increase the performance of your application by accessing in microseconds. Meaning, the frequent request to the database is cached by Redis and served from the fastest memory RAM. Redis is a database caching service and an In-memory data structure storage.
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