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

$ sudo service apache2 restart

$ sudo nano /etc/redis/redis.conf

port 6379

port 0

unixsocket /var/run/redis/redis.sock

unixsocketperm 700

unixsocketperm 770

$ sudo usermod -a -G redis www-data

$ sudo service apache2 restart

$ sudo service redis-server start

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

'memcache.local' => '\\OC\\Memcache\\Redis',
'memcache.distributed' => '\\OC\\Memcache\\Redis',
'memcache.locking' => '\\OC\\Memcache\\Redis',
'filelocking.enabled' => 'true',
'redis' => 
array (
'host' => 'localhost',
'port' => 0,
'timeout' => 0.0,
),

$ sudo systemctl enable redis-server

9 thoughts on “Configuring Memory Caching In Nextcloud”

1. Hello,
   sorry for the trouble, I have a difficulty: I followed step by step your directions, Nextcloud tells me that everything is fine with regard to the memcache, but I can not upload new files or create new ones. Where am I wrong?
   Thanks so much!

   Renzo

   Reply

   1. Somehow I think I have come across this problem in Nextcloud before but I can’t remember how I resolved it (& I didn’t write it down). But it sounds like the first place to start is your user permissions on the server. I would make sure that you chown the nextcloud and data directory, example:

      $ sudo chown -R www-data:www-data /var/www/html/nextcloud/

      and chmod the data directory, example:

      $ sudo chmod -R 0770 /var/www/html/nextcloud/data

      and finally if that doesn’t work, you can try to add your user permissions to nextcloud, example:

      $ sudo setfacl -R -m "u:user:rwx" /var/www/html/data/user

      where the first user is your server username and the second is your username in Nextcloud. If any of this helps or you find the solution, could you kindly post it? Thanks

      Reply

2. DON’T FOLLOW THIS TUTORIAL. AFTER IS IT IMPOSSIBILE TO UPLOAD FILE ON NEXTCLOUD.

   Reply

   1. Hello, since Renzo above first posted this issue I have not had the same problem. I did do 2 changes in Nextcloud’s config file above which works perfectly, changing

      'memcache.local' => '\OC\Memcache\APCu',

      to

      'memcache.local' => '\\OC\\Memcache\\Redis',

      and adding:

      'memcache.distributed' => '\\OC\\Memcache\\Redis',

      However, this still may not solve your issue. This same issue has also been posted on Jason Bayton’s forum and seems only to affect very few people. Why? I couldn’t tell you because again, I have never had this problem. The issue is further discuseed here – https://discuss.bayton.org/t/installing-nextcloud-on-ubuntu-16-04-lts-with-redis-apcu-ssl-apache/62/39 and further down the thread here – https://discuss.bayton.org/t/installing-nextcloud-on-ubuntu-16-04-lts-with-redis-apcu-ssl-apache/62/51 – but it seems that it was not solved. It appears Renzo was seeking answers and Jason Bayton, who was attempting to solve the issue, could only finally state:

      At this point without seeing your environment first hand I’m not sure what’s wrong, sorry.
      You could maybe swap redis for aPCU in your config.php file and see if that resolves the black page, but that doesn’t fix redis itself.

      So, in summary, I think this is a rare and isolated issue that has something to do with one’s operating environment and not with the code (unless changing the config lines above have any affect). And again, for anyone that has this issue and has found a solution, please post it!

      Reply

      1. And if you are using MariaDB, try this: (taken from an error I once had when installing Nextcloud – Error #2 at the bottom – https://kenfavors.com/code/how-to-install-nextcloud-on-ubuntu-16-04-using-nginx-mariadb/)

         change the binlog format in MariaDB from ‘row’ to ‘mixed’

         
         $ sudo nano /etc/mysql/my.cnf
         

         CTRL+W to find ‘binlog_format’

         uncomment and change

         
         binlog_format=row
         

         to

         
         binlog_format=mixed
         

         Ctrl+X, then ‘Y’ to save and exit

         
         $ sudo service mariadb restart
         

         reference: http://thr3a.hatenablog.com/entry/20160602/1464817095
         and more info on the binary log is here: https://dev.mysql.com/doc/refman/8.0/en/binary-log.html

         Reply

3. i had to manually edit the path, form the configuration file.
   unixsocket /var/run/redis/redis-server.sock

   ‘host’ => ‘/var/run/redis/redis-server.sock’,

   that worked for me .!!

   Reply

   1. Thank you Athma!

      Reply

4. missing backslashes in line ‘memcache.local
   host doesn’t work, replaced by localhost
   otherwise works fine on raspbian

   ‘memcache.local’ => ‘\\OC\\Memcache\\Redis’,
   ‘memcache.distributed’ => ‘\\OC\\Memcache\\Redis’,
   ‘memcache.locking’ => ‘\\OC\\Memcache\\Redis’,
   ‘filelocking.enabled’ => ‘true’,
   ‘redis’ =>
   array (
   ‘host’ => ‘localhost’,
   ‘port’ => 0,
   ‘timeout’ => 0.0,
   ),

   Reply

   1. Thank you for catching the backslashes in memcache.local – the post has been Updated!.
      It’s been a while since I’ve reviewed my config file, I also have ‘host’ => ‘localhost’, – the post has been Updated.

      Reply

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