Re: [Duplicity-talk] Backup problems 0.6.17

[edgar . soldin]

On 10.01.2012 23:46, Ken Bass wrote:
> On 1/10/2012 3:12 PM, Ken Bass wrote:
>> On 1/10/2012 12:09 PM, address@hidden wrote:
>>> can you send us the full output run with -v9 , obfuscate data that seems 
>>> sensitive to you in it. please post it to pastebin and send the link here.
>>
>> I did have an idea earlier. One thing I noticed is that during the original 
>> backup I had a restart. I wonder if the restart/resume logic is somehow 
>> corrupting the signature files?
> 
> This is the problem. I was able to reproduce it when there is a RESTART.
> 
> Summary: When a RESTART occurs, all files prior to the restart will be marked 
> deleted and re-backed up in subsequent backups
> 
> To reproduce:
> 
> 1) Kick off a full backup. Wait until several volumes have been uploaded and 
> then hit Ctrl-C during the upload of a volume. You will probably have to hit 
> Ctrl-C five times to abort each of the five retry attempts. The goal is to 
> exit back to the shell.
> 2) Run the same backup command and let it complete. Duplicity will print 
> something like
> "RESTART: Volumes 2 to 3 failed to upload before termination.
>          Restarting backup at volume 2."
> 
> At this point you are supposed to have a completed full backup set.
> 
> 3) Run the same backup command and let it complete. This will be your first 
> incremental. All files located in volumes prior to the RESTART will be marked 
> as deleted.
> 
> 4) Run the same backup command and let it complete. This will be your second 
> incremental. All files marked deleted will be backed up again and marked 
> deleted again.
> 
> If you still want me to upload to pastebin I can, but this should allow for 
> reproduction of the problem.
> 


could you please open a bug on launchpad and create and attach the mentioned 
logs there for completeness sake? thanks for the detailed investigation 
already. the resuming was implemented by ken, but i doubt he 's got the time 
currently to fix this. i'll cc him anyway.

thx again ede/duply.net