Re: --sequential-read not sequential???

Graham Cobb <[email protected]>
Newsgroups gmane.comp.sysutils.backup.dar.support
Message-ID <[email protected]>
>> 1) Using dar_xform and an actual pipe to feed "dar -t". That caused
>> dar to emit a hard error because it cannot go backwards on a pipe.
>> So the "dar -t" failed. It didn't emit any message explaining why
>> it wanted to go backwards.
> 
> strange, which version of dar are you using by the way?

2.6.6

> Just double check: have you used
> --sequential-read option?

yes

> 
> I Must find a way (and time) to reproduce it...

In case it is helpful, these archives are created and managed by
DAR_automatic_backup.sh (probably an old version as I have not touched
it for many years).

I have now found an archive with a single slice which reproduces the
reading problem. This eliminates the problem being anything to do with
multiple slices, or dar_xform. Unfortunately this archive is 1.3GB and
contains private data so I cannot make it available to you. With this
particular archive,

dar -t - --sequential-read </var/tmp/DARsystemDiff06.1.dar

gives the following output...

ERR <ROOT>/var/indexes/cobb : Skipping backward is not possible on a pipe
ERR <ROOT>/var/indexes/cobb/.Trash : Skipping backward is not possible
on a pipe
ERR <ROOT>/home/cobb : Skipping backward is not possible on a pipe
ERR <ROOT>/home/cobb/dovecot : Skipping backward is not possible on a pipe
ERR <ROOT>/home/cobb/dovecot/cur : Skipping backward is not possible on
a pipe

 --------------------------------------------
 5903243 item(s) treated
 0 item(s) with error
 0 item(s) ignored (excluded by filters)
 --------------------------------------------
 Total number of items considered: 5903243
 --------------------------------------------

> 
> if you still have the whole dar ouput, can you provide the output of
> this command:
> 
> grep "/var/lib/samba/private" <dar output>


Yes. I will send it as an attachment to a separate message off-list.

Graham
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