Re: [Bacula-users] Effects of attribute Ignore FileSet Changes (FileSet resource)

[Karl C. <ka...@ec...>]

Baptiste Malguy wrote:
> Hello,
> My sequence:
> 
> Step 1
> - Ignore FileSet Changes = no
> - File = /home/test/d1
> - Requesting an incremental backup. It is actually incremental (the full
> done previously with the same setting)
> 
> Step 2
> - Ignore FileSet Changes = yes
> - File = /home/test/d1
> - Requesting an incremental backup. Still observe an incremental.
> - No new FileSet checksum
> 
> Step 3
> - Ignore FileSet Changes = yes
> - File = /home/test/d2 (d1 and d2 have diffrent contents)
> - Requesting an incremental backup. Still observe an incremental. (d2 is
> backuped)
> - No new FileSet checksum
> 
> Step 4
> - Ignore FileSet Changes = no
> - File = /home/test/d2
> - Requesting an incremental backup. Still observe an incremental. (d2 is
> backuped _again_)
> - New FileSet checksum
> 
> I'm a little surprised by the results. I'm not sure this is the designed
>  behavior by the developers.

Baptiste --

Sorry, I forgot to copy the list in my first reply to this question. 
Here it is...

I won't address the question of whether a changing IgnoreFilesetChanges
should itself be deemed a fileset change.

I don't know what the intent of the developers was, but I believe what
you are describing comes down to the question of which fileset is used
as a reference to detect changes.  Two possible methods come to mind:

1. The most recent fileset used while IgnoreFilesetChanges was yes.
2. The most recent fileset used regardless of the setting of
IgnoreFilesetChanges.

Either method has its advantages and disadvantages.  I think you were
expecting method 1 but what is implemented is method 2.  I believe what
is implemented will satisfy most users' needs, but perhaps the method of
checking for changes needs to be more thoroughly described in the manual.

> I'm wrong here. Only changes done in d2/ are backuped. Changes since
> when ? (last Full ? Last Inc ?)

If d2 is a file, with an incremental it would be backed up if the file
changed since last time it was backed up.  If d2 is a directory, files
in it would be backed up if they changed since last time they were
backed up.  Each file is examined individually.

Karl Cunningham