Incremental transfers: how to tell?
craig at atheros.com
Wed Jan 29 08:52:45 EST 2003
> James Kilton wrote:
> > To follow up on this... I found the --stats option and
> > here's what I'm getting:
> > Number of files: 36
> > Number of files transferred: 36
> > Total file size: 10200816 bytes
> > Total transferred file size: 10200816 bytes
> > Literal data: 10200816 bytes
> > Matched data: 0 bytes
> > File list size: 576
> > Total bytes written: 10203996
> > Total bytes read: 596
> > So, I don't know why no parts of the files are
> > matching. The files are the same save for 1 or 2
> > values changing every 5 minutes. I don't know if
> > anyone here is familiar with RRD files, but they're
> > database files commonly used for SNMP data collection.
> > All the fields are created initially so the file size
> > never changes -- the fields are populated as time goes
> > on.
> > Is RSync unable to do incremental transfers of
> > non-text files?
> No, it is perfectlty capable of this.
> Is is possible that your files are changing in widely scattered places, such
> that every block that rsync examines has changed?
Since only 596 bytes were read, the receiving side clearly doesn't
even see the old files and send the checksums (10MB of literal data
should be around 10MB/700 * 6 bytes of checksums).
So you appear to be rsync'ing to files on the receiving side that
don't exist, or they cannot be read (permissions problem?). Please
check your path names etc. What happens if you run the same command
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