link-dest and batch-file
kmk at sanitarium.net
Tue Jun 26 19:47:56 UTC 2018
I don't believe there is anything you can do with the batch options for
this. If you added a --write-batch to each of those you would get 3
batch files that wouldn't be read without a --read-batch. If you also
did a --read-batch that would contain differences between a backup and
the backup before it so rsync would still have to read the backup before
it to understand the batch (and this would continue on to the oldest
backup making the problem worse).
Anyway, what you were asking for sounds a lot like rdiff-backup. I
didn't like it myself but maybe you would.
BTW, my experience with many millions of files vs rsync --link-dest is
that running the backup isn't a problem. The problem came when it was
time to delete the oldest backup. An rm -rf took a lot longer than an
rsync. If you haven't gotten there yet maybe you should try one and see
if it is going to be as big a problem as I had.
On 06/26/2018 03:02 PM, Дугин Сергей via rsync wrote:
> I am launching a cron bash script that does the following:
> Day 1
> /usr/bin/rsync -aH --link-dest /home/backuper/.BACKUP/0000009/2018-06-25 root at 192.168.1.103:/home/ /home/backuper/.BACKUP/0000009/2018-06-26
> Day 2
> /usr/bin/rsync -aH --link-dest /home/backuper/.BACKUP/0000009/2018-06-26 root at 192.168.1.103:/home/ /home/backuper/.BACKUP/0000009/2018-06-27
> Day 3
> /usr/bin/rsync -aH --link-dest /home/backuper/.BACKUP/0000009/2018-06-27 root at 192.168.1.103:/home/ /home/backuper/.BACKUP/0000009/2018-06-28
> and etc.
> The backup server experiences a large flow of data when the quantity
> of files exceeds millions, as rsync scans the files of the previous
> day because of the link-dest option. Is it possible to use the
> batch-file mechanism in such a way, so that when using the
> link-dest option, the file with the metadata from the current day
> could the executed the following day without having to scan the
> folder, that is linked in the link-dest?
> Yours faithfully,
> Sergey Dugin mailto:drug at qwarta.ru
Kevin Korb Phone: (407) 252-6853
Systems Administrator Internet:
FutureQuest, Inc. Kevin at FutureQuest.net (work)
Orlando, Florida kmk at sanitarium.net (personal)
Web page: https://sanitarium.net/
PGP public key available on web site.
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