Re: [Bacula-users] Unchanged files still saved in incremental backup


Guillaume_h wrote:
> Kevin Keane a écrit :
>   
>> Bacula uses the file date to determine which files have changed. So a 
>> file with a future file date would be backed up by each incremental backup.
>>
>> Since you say that your file was NOT backed up on 9/15 and 9/16, my 
>> guess is that some application may be opening the file for writing 
>> without actually making a change. Whatever application is responsible 
>> for that probably wasn't running on 9/15 and 9/16.
>>
>>   
>>     
> No. The history posted by "Le Dahut" does not end on 9/17. Beginning 
> from 17/09, all files are backed up every day with incremental backup 
> whatever the mod date is (I have some files that has not been modified 
> since 2k8 and bacula backup these files every day).
>
>   
Run "stat" on one of those older files.  Look at the ctime.  Is it very 
recent -- perhaps a day or less?  By default, bacula uses both the mtime 
and ctime of a file to determine if it has been changed.  If EITHER one 
of those is newer than the last backup, bacula will include the file in 
an incremental.

For example:

lithium:/data/temp > dir testfile
-rwxr-xr-x 1 cedric cedric 2.1K 2004-06-24 08:01 testfile


lithium:/data/temp > stat testfile
  File: `testfile'
  Size: 2137            Blocks: 8          IO Block: 4096   regular file
Device: fe03h/65027d    Inode: 2899        Links: 1
Access: (0755/-rwxr-xr-x)  Uid: (  500/  cedric)   Gid: (  500/  cedric)
Access: 2009-09-30 22:02:46.005409891 -0700
Modify: 2004-06-24 08:01:58.000000000 -0700
Change: 2009-10-05 19:10:58.906666135 -0700



- Cedric

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