[Borgbackup] Regular backup strange behavior (stuck)

[Peter Albrecht]

Hi JY,

how much data do you backup?

I recently added a virtual machine (50 GB) to my backup. Although most of the 
vm's virtual disk does not change, borg now always has to crunch all those 50 GB 
to find changes. This takes way longer than in times without this virtual disk.

Maybe some metadata of your files changed, so borg has to check a lot of data now.


A sponatnous idea:
You can run "borg create" via "strace":

   # strace borg create ...

See https://www.baeldung.com/linux/strace-command for more information.

Regards,
	Peter



On 26.01.24 05:20, Bzzzz via Borgbackup wrote:
> On Thu, 25 Jan 2024 22:48:17 +0100
> Bzzzz via Borgbackup <borgbackup at python.org> wrote:
> 
> I made a forced fsck of the repo disk that did not show any problem
> and followed by a borg check with rc=0.
> 
> I still can't see what could be the cause of borg being stuck.
> 
> JY
> 
>> debian : bookworm
>> borg   : 1.2.7 (from pip)
>> repo   : mounted on the client with nfs
>> 	 (readable from another console,
>> 	  so not a network PB)
>> ========================================
>>
>> Hi list,
>>
>> One machine normally takes something like 30'~35' to backup, however
>> today borg is up for largely more than 1 hour !?
>> start time : 21:01:29
>> this time  : 22:45:09
>>
>> The console where my script was launched shows the usual list of
>> modified files, no recap so it is assumed to be still running, there
>> is no error message at all and the last repo file shows one created
>> file with the last access 2' after backup was started and that is all
>> : $ sudo stat /NFS/BORG/data/3/3992
>>    File: /NFS/BORG/data/3/3992
>>    Size: 147182858 	Blocks: 287480     IO Block: 131072 regular
>> file Device: 0,87	Inode: 112984077   Links: 1
>> Access: (0600/-rw-------)  Uid: (    0/    root)   Gid: (    0/
>> root) Access: 2024-01-25 21:02:26.104944402 +0100
>> Modify: 2024-01-25 21:03:07.375370789 +0100
>> Change: 2024-01-25 21:03:07.375370789 +0100
>>   Birth: -
>>
>> I already tried to kill borg and relaunch it but with the same result,
>> it stays stuck on the last (?) modified file and nothing else occurs.
>>
>> What could be wrong ?
>>
>> Jean-Yves
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> 
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