Open Stack

Then it would not be an incremental backup/restore. This problem arises
when doing incremental backup and restores.
-- 
Deklan Dieterly

Senior Systems Software Engineer
HPE




From:  Fausto Marzi <fausto.marzi at gmail.com>
Reply-To:  "OpenStack Development Mailing List (not for usage questions)"
<openstack-dev at lists.openstack.org>
Date:  Wednesday, May 18, 2016 at 5:22 AM
To:  "OpenStack Development Mailing List (not for usage questions)"
<openstack-dev at lists.openstack.org>
Subject:  Re: [openstack-dev] [Freezer] Replace Gnu Tar with DAR


>Hi Deklan,
>
>what happen if the extract is executed without --listed-incremental or
>--incremental options?
>
>
>Does the issue still happen?
>
>
>Thanks,
>
>Fausto
>
>
>On Sat, May 14, 2016 at 12:56 AM, Dieterly, Deklan
><deklan.dieterly at hpe.com> wrote:
>
>When using incremental backups, tar will not handle removing a dir and
>then renaming another dir to the removed dir.
>
>
>dek at dek-HP-Z620-Workstation:~/backup-test$ tar --extract
>--listed-incrementa=/dev/null --file backup.2.tar
>tar: Cannot rename Œbackup/dir1¹ to Œbackup/dir2¹: Directory not empty
>tar: Exiting with failure status due to previous errors
>
>
>
>Here are the steps to reproduce.
>
> 1845  mkdir backup
> 1846  mkdir backup/dir1
> 1847  mkdir backup/dir2
> 1848  echo "aa" > backup/dir1/dir1-file1
> 1849  echo "aa" > backup/dir2/dir2-file1
> 1852  tar --create --file=backup.tar --listed-incremental=./listed-incr
>backup
> 1854  rm -rf backup/dir2
> 1855  mv backup/dir1 backup/dir2
> 1856  tar --create --file=backup.2.tar --listed-incremental=./listed-incr
>backup
> 1859  tar --extract --listed-incrementa=/dev/null --file backup.tar
> 1861  tar --extract --listed-incrementa=/dev/null --file backup.2.tar
>
>
>This seems to be a well known, long-standing issue with tar.
>--
>Deklan Dieterly
>
>Senior Systems Software Engineer
>HPE
>
>
>
>
>On 5/13/16, 4:33 PM, "Fox, Kevin M" <Kevin.Fox at pnnl.gov> wrote:
>
>>Whats the issue?
>>________________________________________
>>From: Dieterly, Deklan [deklan.dieterly at hpe.com]
>>Sent: Friday, May 13, 2016 3:07 PM
>>To: openstack-dev at lists.openstack.org
>>Subject: [openstack-dev] [Freezer] Replace Gnu Tar with DAR
>>
>>Does anybody see any issues if Freezer used DAR instead of Gnu Tar? DAR
>>seems to handle a particular use case that Freezer has while Gnu Tar does
>>not.
>>--
>>Deklan Dieterly
>>
>>Senior Systems Software Engineer
>>HPE
>>
>>
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