Memcache In Nextcloud | Setup Tutorial

With Memcache, we can greatly increase Nextcloud server performance. At Bobcares, with our Server Management Services, we can handle your server issues.

Memcache In Nextcloud

The memory caching of Nextcloud is the process of storing frequently-requested objects in memory for faster retrieval.

A PHP opcode cache, also known as opcache, and data caching for the Web server are the two types of caches to use. On the Nextcloud admin page, we will see a warning if we don’t install and enable a local memcache. We are not required to use a memcache, and we are safe to ignore the warning.

In order to avoid having to compile PHP scripts again each time they are called, they are stored in a PHP opcache. Since PHP version 5.5, the Zend OPcache is included in the core, eliminating the need for manual installation. Redis, Memcached, or the user (APCu) can provide data caching.

We can choose any of the below memcache backends in Nextcloud considering our needs:

1. Memcached
2. APCu
3. Redis

By installing and enabling the desired cache, and then adding the necessary entry to config.php, Memcaches must be explicitly configured in Nextcloud. Then we should run the PHP version and information to make sure the chosen memcache is operational after installing and enabling it.

How To Set Up Memcache In Nextcloud?

We recommend using APCu and Redis. We have to run the below steps to configure memcache in Nextcloud:

1. Firstly, we have to do APCu and Redis installation.

$ sudo apt install php-apcu redis-server php-redis

$ sudo service apache2 restart

2. Now modify the config file.

$ sudo nano /etc/redis/redis.conf

Press Ctrl+w and enter “port” to search for port 6379 and change port 0. Then press Ctrl+w to search for and uncomment

unixsocket /var/run/redis/redis.sock

. Now uncomment the below code and change the permissions to 770:

unixsocketperm 700

to

unixsocketperm 770

Now press Ctrl+x, and the ‘Y’ to save and exit.

3. To the www-data group, add the Redis user redis:

$ sudo usermod -a -G redis www-data

4. We must restart Apache now:

$ sudo service apache2 restart

5. Also start the Redis server:

$ sudo service redis-server start

6. We must now include the caching configuration in the Nextcloud config file:

$ sudo nano /var/www/html/nextcloud/config/config.php

Add the below codes right after the last line and before the last parenthesis and semicolon.

'memcache.local' => '\\OC\\Memcache\\APCu',
'memcache.distributed' => '\\OC\\Memcache\\Memcached',
'redis' => 
array (
'host' => 'localhost',
'port' => 0,
'timeout' => 0.0,
),

7. Press Ctrl+x, then ‘Y’ to save and exit.

8. To make sure Redis is set to launch at boot, use the below code:

$ sudo systemctl enable redis-server

Now there will not be a “Security & Setup Warning” about memcache not being enabled when we visit Nextcloud’s admin page.

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Conclusion

The article briefly explains the steps from our Tech team to install and configure memory cache/memcache in the Nextcloud.