El Jue 30 Abr 2009 13:45:38 Martin escribió:
> Then that is an Achilles heel for gaining feedback on what was accepted
> by the client...
>
> Apache can report what URL downloaded whatever, so that is one means of
> feedback for servers under direct project control.
>
> Another means could be that that the next client request also lists what
> was accepted last time. Rather messy and that would leave unaccepted WUs
> in limbo for too long.
>
> And then there is the even more messy WU abort...
>
> Soooo...
>
> At present, how do the download servers know to delete
> downloaded/expired WUs if they can't 'phone home'?

That depends on the project.

If it's the same server, file_deleter deletes download files from the 
local 'download' directory. If it's a different server on the LAN, usually 
it's NFS-mounted, so file_deleter also issues a normal file delete.

BURP sends a request to mirror servers to tell them the file should be 
deleted. It's a completely custom request, and probably triggered by the 
mirror system, not the file deleter.

I don't know what einst...@home does for its geo-distributed download servers.

> What is done at present about WU failed downloads?

Nothing that involves the download servers.
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