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big_file_upload_configuration.rst

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Uploading big files > 512MB (as set by default)

The default maximum file size for uploads is 512MB. You can increase this limit up to what your filesystem and operating system allows. There are certain hard limits that cannot be exceeded:

  • < 2GB on 32Bit OS-architecture
  • < 2GB with Server Version 4.5 or older
  • < 2GB with IE6 - IE8
  • < 4GB with IE9 - IE10

64-bit filesystems have much higher limits; consult the documentation for your filesystem.

System Configuration

  • Make sure that the latest version of PHP (at least 5.4.9) is installed
  • Disable user quotas, which makes them unlimited
  • Your temp file or partition has to be big enough to hold multiple parallel uploads from multiple users; e.g. if the max upload size is 10GB and the average users uploading the same time is 100: temp space has to hold at least 10x100 GB

Configuring Your Webserver

ownCloud comes with its own owncloud/.htaccess file.
If PHP-FPM is used, it can't read .htaccess PHP settings unless a PECL extension is installed. If PHP-FPM is used without the PECL extension installed, settings and permissions must be set in the owncloud/.user.ini file.

Set the following two parameters inside the corresponding .ini file:

php_value upload_max_filesize = 16G
php_value post_max_size = 16G

Adjust these values for your needs. If you see PHP timeouts in your logfiles, increase the timeout values, which are in seconds:

php_value max_input_time 3600
php_value max_execution_time 3600

Configuring PHP

If you don't want to use the ownCloud .htaccess or .user.ini file, you may configure PHP instead. Make sure to comment out any lines .htaccess pertaining to upload size, if you entered any.

To view your current PHP configuration and to see the location of your php.ini file, create a plain text file named phpinfo.php with just this single line of code in it: <?php phpinfo(); ?>. Place this file in your Web root, for example /var/www/html, and open it in your Web browser, for example http://localhost/phpinfo.php. This will display your complete current PHP configuration. Look for the Loaded Configuration File section to see which php.ini file your server is using. This is the one you want to edit.

If you are running ownCloud on a 32-bit system, any open_basedir directive in your php.ini file needs to be commented out

Set the following two parameters inside php.ini, using your own desired file size values:

upload_max_filesize = 16G
post_max_size = 16G

Tell PHP which temp file you want it to use:

upload_tmp_dir = /var/big_temp_file/

Output Buffering must be turned off in .htaccess or .user.ini or php.ini, or PHP will return memory-related errors:

  • output_buffering = 0