Matthias Meyer wrote:
> Matthias Meyer wrote:
> 
>> Hi,
>>
>> I use BackupPC 3.1 and rsyncd.
>> If an incr Backup aborts, e.g. because of lost network connections, all of
>> the data, which was copied into the /new directory, will be deleted.
>> The next time an incr backup runs, all the work (compare and transfer)
>> must be done again.
>>
>> What is the reason for this behavior?
>> Is there a posibility to save the already saved data and reuse it for the
>> next backup in a similiar way as in interupted full backups?
>>
>> Thanks in advance
>> Matthias
> 
> I tried to move the data (/new, /NewFileList, /XferLOG.z) to another place
> by the DumpPostUserCmd if $type == incr and $xferOK == 0.
> This part works fine.
> In the DumpPpreUserCmd I move the data back to its original place if $type
> == incr and saved data exists.
> This part works fine too.
> But the following rsync process transfers the already transfered files
> again.
> It seems that rsync, at least within an incremental mode, did not compare
> the files against the /new directory.
> 
> In the next step I will try to move the /new directory to a /<number>
> directory, update the /backups file and run BackupPC_link during the
> DumpPostUserCmd.
> 
> Is there any reason to not do that?

Rsync incrementals are based on the previous full unless you are using 
incremental levels, so even if the backup had completed it wouldn't be used for 
comparison in the next run.  If this is a frequent problem for you, perhaps you 
should make all of the backups fulls.  This will take longer because of the 
checksum comparisons but not much more bandwidth.  Then partial backups would 
be 
reused and you would not transfer multiple copies of files for each incremental.

-- 
    Les Mikesell
      lesmikesell AT gmail DOT com

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