MYSQL:Video Update Problems

I keep getting the following error when I try to upload a video:

Code:

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ERROR: Unable to execute query

update video set
                        flvdoname='12080586181700952479.flv',
                        duration='261.982' WHERE VID=71

MySQL server has gone away

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I've tried everything but nothing works. What could possibly be wrong. When I upload smaller videos they work but when I upload large videos like this one I get the above error.

I need help A.S.A.P

This error is due to MySQL server down. Please use google search you will get reason for this error

but how can mysql be down if it allows smaller videos to be uploaded. I think the problem might be from the script itself.

This is server problem.Server is not able to process big files.
Just changing value in php.ini will not work if your server is overloaded or don't have enough cpu and memory to handle big file uploads.

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