Re: [BackupPC-users] BackuPC 4 hang during transfer

[Craig B. <cba...@us...>]

>
> An order of magnitude is totally unacceptable and can only mean some bugs
> in the code.

Only BPC is slow as hell.


Since you have concluded what the problem is, I don't have anything
constructive to add.

Craig

On Tue, Sep 19, 2017 at 11:41 PM, Gandalf Corvotempesta <
gan...@gm...> wrote:

> 2017-09-19 18:01 GMT+02:00 Gandalf Corvotempesta
> <gan...@gm...>:
> > Removed "--inplace" from the command like and running the same backup
> > right now from BPC.
> > It's too early to be sure, but seems to go further. Let's see during the
> night.
>
> Is still running. This is ok on one side, as "--inplace" may caused
> the issue, but on the other side,
> there is something not working properly in BPC. An incremental backup
> is still running (about 80%)
> from yesterday at 17:39.
>
> rsync, rsnapshot, bacula, rdiff-backup, bareos, and borg took about 3
> hours (some a little bit more, some a little bit less) to backup this
> host in the same way (more or less, same final size of backup)
> BackupPC is taking 10 times more of any other backup software, this
> makes BPC unusable with huge hosts. An order of magnitude is totally
> unacceptable and can only mean some bugs in the code.
>
> As wrote many month ago, I think there are something not working
> properly in BPC, it's impossible that BPC deduplication is slowing
> down backups in this way.
> Also, I've removed the compression, because I'm using ZFS with native
> compression, thus BPC doesn't have to decompress, check local file,
> compress the new one and so on.
>
> And after the backup, refCnt and fsck is ran. For this server, the
> "post-backup" phase takes another hours or two.
>
> Maybe I have hardware issue on this backup server, but even all other
> backup software that i've tried are running in this server with no
> issue at all. Only BPC is slow as hell.
>
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