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Re: MD5 mismatches on downloads from ftp.de.debian.org



Tollef Fog Heen wrote:
> * Adam Lackorzynski 
> 
> | The mismatches come from an incorrect resync after the archive move. The
> | contents of the files itself were actually ok.
> | To fix the archive I've placed a little script in the root directory
> | that wgets the corresponding files as rsync won't do it due to same time
> | stamps and sizes. You could also just remove them and resync.
> 
> >From man rsync:
> 
>        -c, --checksum
>               This forces the sender to checksum all files using a
>               128-bit MD4 checksum before transfer.  The checksum is
>               then explicitly checked on the receiver and any files of
>               the same name which already exist and have the same
>               checksum and size on the receiver are not transferred.
>               This option can be quite slow.

I would be concerned that using this feature may place a high load on
the rsync server.  Especially if it were used by many clients.  But
with the Packages file and the md5sums there a local comparison can
identify non-matching files using only compute resources on the
client.  However, I am sure you were suggesting this as a single use
to correct a once occurring problem.

Bob

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