BackupPC-users

Re: [BackupPC-users] md4 doesn't match - how to solve?

2010-02-01 20:20:21
Subject: Re: [BackupPC-users] md4 doesn't match - how to solve?
From: "Michael Stowe" <mstowe AT chicago.us.mensa DOT org>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Mon, 1 Feb 2010 19:18:23 -0600
> Hello,
>
> I'm wondering about not finishing a backup from a windows client the last
> couple of days.
>
> The XferLOG stats:
> :
>   create   770    544/18      196608
> microtech/Daten/NT/Mand.MESSE-2009/DTAHistory.MBD
> microtech/Daten/NT/Mand.MESSE-2009/Dokumente.MBD: md4 doesn't match: will
> retry in phase 1; file removed
>   create   770    544/18      196608
> microtech/Daten/NT/Mand.MESSE-2009/Einsatz.MBD
> :
>   same     700  1003/513       69912
> nexcelent.bpxchange_old2/bpXchange.sfs
>   create d 770    544/18           0 xerox
>   create d 770    544/18           0 xerox/nwwia
> Read EOF:
> Tried again: got 0 bytes
> finish: removing in-process file
> microtech/Daten/NT/Mand.MESSE-2009/Dokumente.MBD
> Child is aborting
> Done: 15109 files, 25829421376 bytes
>
> Unfortunately the internet connection of my client interrupts each night
> :-(
> In this case obviously during the "retry in phase 1"?
>
> What the reason for the "md4 doesn't match" could be?

Most likely, the file is being modified.

> Can I help BackupPC to find the correct md4?

No.

> e.g. delete the file from backup or exclude it for one full run?

You might need to exclude it, or use a VSS technique to guarantee
consistency.

> Mybee my configuration of backuppc/rsyncd isn't ok?
> $Conf{RsyncArgs} = [
>   '--numeric-ids',
>   '--perms',
>   '--owner',
>   '--group',
>   '-D',
>   '--links',
>   '--hard-links',
>   '--times',
>   '--block-size=2048',
>   '--recursive',
>   '--one-file-system',
>   '--contimeout=600',
>   '--checksum-seed=32761',
>   '--partial'
> ];
>
> Thanks for any hint
> Matthias
> --
> Don't Panic


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