What is the best way to implement a big (1GB or more) file uploader website in PHP or Java? Using the default way of uploading in PHP or Java results in running out of RAM space and slowing the website very dramatically.
views:
150answers:
2
+1
A:
We've been using http://www.javaatwork.com/ftp-java-upload-applet/details.html for uploading very big files to dedicated hosting. It works a treat even with lots of RAW (photo) files.
Only drawback is it's not multi-threading and locks your browser until it's all uploaded.
Still to find another Java uploader as good looking as this (important to us), but there are a few multi-threaded ones out there that look pretty bad :-)
niggles
2010-03-23 05:04:10
+2
A:
It would be unwise to open the file on the client side, read its whole content to memory, close it and then start sending the contents, precisely because the contents can exceed the available memory.
One alternative is to open the file, read a chunk of it (remembering where the last chunk ended of course), close the file, upload to the server, and reassemble the file on the server side by appending to previous chunks. This is not a trivial procedure, and should take into consideration things like resource management, IO faults and synchronization, especially when working in parallel with multiple threads.
Yuval
2010-03-23 05:35:24