[Csci551-talk] Finding total number of segments

[rashmi chandrasekhar]

If 'somebody' replies with a non-zero value to your INFO_REQ message, you can be sure that, that 'somebody' is either the seed or is a client who has downloaded some segments. In either case, we know that the seed is already existing in the system. So, you can check to see the maximum value advertised by members in the group update, and use it as the total file size. If nobody replies with a non-zero value for your INFO_REQ, timeout and retry again. Hope it helps.

Regards,
Rashmi.


----- Original Message -----
From: hariram yogendran <yogendra at usc.edu>
Date: Thursday, April 28, 2005 3:57 pm
Subject: [Csci551-talk] Finding total number of segments

> Hi,
> 
> 
> For algorithm T we need to find the total number of segments in 
> the file before 
> we start downlading the file to calculate the sequence.For this 
> does the seed 
> have to calculate the number of segments send it to the tracker 
> (this means that 
> we will need new messege type for sending the total segments).Then 
> the tracker 
> will send this to all the clients.Or can I assume that the total 
> number of segments 
> is going to be fixed.Or is it going to be the maximm number of 
> segments.Please 
> clarify so that I can proceed.
> 
> Regards,
> Hari.
> 
>