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Boniforti Flavio wrote:
>> bad news is, (AFAIK) that this data is not collected within
>> backuppc, and would need a different implementation for each
>> transfer method. The best suggestion I could make would be to
>> measure this at the network interface of your backuppc host.
>> ie, the simplest method to track bandwidth consumption for
>> rsyncd transfers is to add an iptables allow rule for traffic
>> to your client host on port 873 (or whatever the correct ip +
>> port is)...
>
> Well, if I'd achieve something like this, I guess I would be collecting
> *every single bit* (also commands issued and stuff like that).
> For my purpose, it would be sufficient to know that I transferred a
> total amount of 14 files, which sum up to 1034896 bytes. I tried to look
> at the log files, but I don't understand how to distinguish between the
> words like "pool", "same", "skip", "create"... If I could assume that
> all the "create" ones are really transferred bytes, I'd be summing them
> up with a simple bash script. But what about "pool" ones (I just imagine
> that "skip" and "same" are really NO TRANSFERS)?
Also, when using rsyncd, although the file is different, the entire file
may not have been transferred. ie, a 100MB file might only transfer 5MB
which was modified from yesterday's backup....
In addition, when using rsync+ssh, if you are using compression, then
again, the actual data over the network will be less than the size of
the files transferred (probably also correct for tar+ssh with
compression, etc).
So all of these are estimations, and whether backuppc can internally
even know what the correct settings are/should be, is possibly (probably
as I think about it) impossible.
A simply pre/post script which sets up the iptables entry, and then
records the result and deletes the entry would probably be the quickest
solution for a couple of simple bash scripts.....
Still, this doesn't address the meanings of the various bits of data
which *are* kept by backuppc. Did someone manage to find the
documentation on the meaning of the data recorded in the backups files?
Regards,
Adam
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