Large files do not download completely

I find the same behaviour even with small files that are downloaded with Internet Explorer. but no problems with other browsers.

Don't know if this will help, but I had similar problem but with any size file on IE 6,7 and 8. I found in my case, it was the way the webserver was
set up. It happens when HTTP compression is enabled on Apache (or IIS) and Internet Explorer 6, 7 and 8 does not handle HTTP compression well and your Apache server is set to compress all files and certain files cannot be more compressed for instance zip files and mp3 and I suppose wmv as well?

So the two ways to get the downloads to work is to either go in to your IE Tools>Internet Options>Advance tab and uncheck "HTTP1.1" and to clear browser cache. But this is not suitable for a Commerce website because you can't expect your clients to go through all of this to download something they bought, so here follows the solution that worked for me:

In .htaccess I added this line right at the bottom: RewriteRule ^(.*)$ $1 [NS,E=no-gzip:1,E=dont-vary:1] Then I cleared all cache on Drupal and voila it worked! It must be noted that this does disable all compression on your website...but it works which is important :)

It also doesn't work on Firefox 21 (PC) or on a Chrome (Mac). My file is 1.9GB big and it's a zip file. It stops downloading at around 190 MB. It works with smaller files like a 50MB file.

It doesn't download completely with Chrome (PC), Safari (PC), IE 8, Firefox (Mac) and Safari (Mac) as well.

Changing to critical as it seems that it doesn't work with any browser.

i have same donwload file issue i can't download my mp3 file of 126 mb completely it has an error occures during the time of downloading .........plz help me

What does your error say? Mine just stops downloading and it doesn't give any error in the logs.

This is what I got so far.

If I download the file directly by visiting the private file link (I didn't buy the product, just downloaded the private file as admin), it won't download completely. I also tested if I can download the same file but in a public directory, and it downloads completely.

Also, if I try downloading the same file in the private directory in my local site which has Apache 2.0 (our dedicated server has Apache 2.2) and it downloads completely.

It seems like an incompatibility with the server configuration + Drupal's private file system. Is anyone experiencing the same thing? Should we move this to core since we can't seem to download huge files from the private directory itself?

I adjusted some php and apache settings to ridiculous values but it still doesn't work. Here are settings I adjusted.

(php)
max_execution_time
max_input_time
memory_limit

(apache)
timeout
MaxRequestsPerChild

I'm busy doing a Drupal performance and optimization course and they're saying that when you doing large file uploads or downloads that it's very difficult to determine the correct settings for max_execution_time and memory_limit. But they say in your etc/php.ini file there should be a whole section in there dealing with if you're doing large file uploads or downloads...so it seems it's definitely a php settings problem.

Does this happen without commerce_file, using a regular filefield with the files stored in the private filesystem?
I would guess that the answer is yes, meaning that this is not a commerce_file problem.
Can you also try commerce_file 2.x (on a clean drupal install, but same PHP settings)? It uses different headers to download the files, which might help.

My goal for commerce_file 2.x is to support X-Sendfile and X-Accel-Redirect (through https://drupal.org/project/nginx_accel_redirect perhaps?), allowing private files to be downloaded outside of Drupal, removing the need to tinker with PHP configuration.

Reclassifying this as a support request until there's evidence of an actual commerce bug. It doesn't mean I don't want to see this solved & documented ASAP.

No reply, I guess that's it for now.

Opened #2064567: Add support for X-Sendfile and X-Accel-Redirect for the X-Sendfile support.

Am I correct in thinking that this problem is something to do with Drupal and php? I've added a 700mb file in sites/default/files and I put the address with the filename straight in the browser and then it downloads the file and doesn't timeout. As soon as you call it from within Drupal, then it normally doesn't get past 80mb...

Yes. As long as the download goes through PHP, it will be limited. That's why we need X-Sendfile support.

Thanks for your feedback. I appreciate it!