Ask questionsACL code does a lot of user/group<->uid/gid lookups

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Have you checked borgbackup docs, FAQ, and open Github issues?


Is this a BUG / ISSUE report or a QUESTION?


System information. For client/server mode post info for both machines.

Your borg version (borg -V).

client: borg 1.1.13

server: borg 1.1.13

Operating system (distribution) and version.

client: Centos 6

server: Centos 7

Hardware / network configuration, and filesystems used.

Backup via internet

How much data is handled by borg?


302366 files

Full borg commandline that lead to the problem (leave away excludes and passwords)

borg create -s -p -C lzma --list --filter=AME --exclude-from=/root/exclude-backup.txt --files-cache=ctime,size borg@server-ip:backup/pdc::pdc-{now} /home/data/

Describe the problem you're observing.

I experience slow 2nd+ backup with winbind as nss provider after a after successful 1st backup.

First backup takes 23 hours, next backups still takes >20 hours

Can you reproduce the problem? If so, describe how. If not, describe troubleshooting steps you took before opening the issue.

I have tried to remove /root/.cache , but still slow


Include any warning/errors/backtraces from the system logs



If this complaint relates to borg performance, please include CRUD benchmark results and any steps you took to troubleshoot. How to run benchmark:

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Answer questions ThomasWaldmann

I guess we rather should fix this in borg 1.2, it's quite likely it needs a bigger / critical change to the code.

TW ThomasWaldmann Earth, Solar System, Local Interstellar Cloud, Local Bubble, Orion–Cygnus Arm, Milky Way
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