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[Bug-wget] [Bug-Wget] Issues with Metalink support

From: Darshit Shah
Subject: [Bug-wget] [Bug-Wget] Issues with Metalink support
Date: Tue, 18 Mar 2014 21:57:58 +0100

I was trying to download a large ISO (>4GB) through a metalink file.

The first thing that struck me was: The file is first downloaded to
/tmp and then moved to the location.

Is there any specific reason for this? I understand that downloading
partial files to /tmp , stitching them and then moving them to the
actual download location might be good on I/O. But, a very popular
case in such scenarios is when /tmp is not large enough to store the
file, but I have enough capacity in the location where I'm trying to
store it.

Wget tried to download the file to /tmp, where it failed since it ran
out of free space. As a result, Wget crashed instead of exiting
gracefully. Failing in itself should be considered a bug since I never
intended to save it to /tmp. The download location I selected has
enough disk space.

We know that origin/master does not fail even with very large files.
Even if the disk is out of capacity, Wget manages to exit gracefully.
I'll try to dive into the code once I get time, but if anyone has any
ideas in the meantime, it would be greatly appreciated!

Thanking You,
Darshit Shah

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