Date Published: February 5, 2025
Bulk Upload Not Working Correctly
Issue¶
As stated within our Modules to use with caution documentation, `dropzonejs` which is included with Acquia Cloud Lightning provides a feature known as `Bulk Upload` which allows for several files to be uploaded together. Some users will experience these uploads not completing correctly, with only a portion of the files uploaded showing up after completion.
Cause¶
In an environment which has multiple web servers which are being served by a single load balancer, the web server that processes the form submission may not be the web server that received the temporary file in the AJAX request, meaning that these files will not be stored correctly.
Workaround¶
The simplest solution is to manually upload files through the /media/add interface instead. Alternately, configure Drupal's temporary files directory to use:
/mnt/gfs/{$_ENV['AH_SITE_GROUP']}.{$_ENV['AH_SITE_ENVIRONMENT']}/tmp
Important note: Drupal system cron will take care of cleaning up the tmp folder for you. Only delete temporary files if older than temporary_maximum_age. Note that automatic cleanup is disabled if temporary_maximum_age set to 0. To check the temporary_maximum_age, you can use the following drush cget command:
$ drush cget system.file --include-overridden --uri=default
_core:
default_config_hash: xxxxx
allow_insecure_uploads: false
default_scheme: public
path: { }
temporary_maximum_age: 21600
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