[Bacula-bugs] [bacula 0001991]: Accurate fails on backup from harlinks

[Mantis B. T. <no...@bu...>]

The following issue has been REOPENED. 
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http://bugs.bacula.org/view.php?id=1991 
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Reported By:                dh-lin
Assigned To:                ebollengier
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Project:                    bacula
Issue ID:                   1991
Category:                   File Daemon
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     feedback
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Date Submitted:             2013-03-04 15:40 GMT
Last Modified:              2013-04-22 15:22 BST
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Summary:                    Accurate fails on backup from harlinks
Description: 
We backup casandra servers with cassandra snapshots. Cassandra snapshot create
snapshot directory in each database and hardlinks to tablespaces. We only backup
this subfolder, but on accurate=yes bacula backup all files because it use wron
filename.

Example. File rollups60-hc-12368-Data.db is old and shall not be backed up in
incremental level With accurate=no it will not be backed up. With accurate=yes
we can see on clent:

accurate.c:236-0 add
fname=</var/lib/cassandra/data/OpsCenter/snapshots/rollups60-hc-12368-Data.db>
lstat=P0E gAAK2 IGk C Bt Bx A KyC2e BAA BWQY BRLg53 BRLi4Q BRM/K1 A A e 
delta_seq=0 chksum=
accurate.c:82-0 lookup
</var/lib/cassandra/data/OpsCenter/snapshots/rollups60-hc-12368-Data.db> ok
accurate.c:367-0
/var/lib/cassandra/data/OpsCenter/snapshots/rollups60-hc-12368-Data.db     
st_ctime differs
accurate.c:277-0 accurate
/var/lib/cassandra/data/OpsCenter/rollups60-hc-12368-Data.db (not found)

Have a look a last line. Here it look at file in wrong directory


Steps to Reproduce: 
create subdirectory with hardlinks and try to backup only this subdirectory with
accurate=yes


Additional Information: 
Our fileset:
FileSet {
  Name = "cassandra_data"
  Ignore FileSet Changes = yes
  Include {
    File  = /var/lib/cassandra/data

    Options {
      mtimeonly=yes
      compression = LZO
      sparse=yes
      hardlinks=yes
      Wild = "/var/lib/cassandra/data/*/snapshots/*"
      WildDir = "/var/lib/cassandra/data/*/snapshots"
     }
     Options {
        Exclude = yes
        WildFile = "/var/lib/cassandra/data/*"
     }

  }
}

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---------------------------------------------------------------------- 
 (0006658) ebollengier (administrator) - 2013-04-18 08:48
 http://bugs.bacula.org/view.php?id=1991#c6658 
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Sorry you have problems with Bacula, however, the message is pretty clear
accurate.c:367-0
/var/lib/cassandra/data/OpsCenter/snapshots/rollups60-hc-12368-Data.db st_ctime
differs

The accurate option is comparing the ctime between the last backup and the
current file, and as values differ, the program take this file.

To avoid that, you can skip the ctime check, see the Accurate Fileset option,
but do it only if you know exactly what you are doing. 

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 (0006663) dh-lin (reporter) - 2013-04-22 15:22
 http://bugs.bacula.org/view.php?id=1991#c6663 
---------------------------------------------------------------------- 
Hi,
please see axactly on last line. It is false directory (/snapshot/ is not there.

Dimitrij 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2013-03-04 15:40 dh-lin         New Issue                                    
2013-04-18 08:48 ebollengier    Note Added: 0006658                          
2013-04-18 08:48 ebollengier    Status                   new => closed       
2013-04-18 08:48 ebollengier    Assigned To               => ebollengier     
2013-04-18 08:48 ebollengier    Resolution               open => no change
required
2013-04-22 15:22 dh-lin         Note Added: 0006663                          
2013-04-22 15:22 dh-lin         Status                   closed => feedback  
2013-04-22 15:22 dh-lin         Resolution               no change required =>
reopened
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