Re: [rdiff-backup-users] --check-destination-dir taking a very long time

[Walt Mankowski]

Update -- it took about 30 hours to do the regression, started doing
the backup, and then quickly crashed with another "No space left on
device" exception. In kern.log I found these messages:

Sep 11 21:53:47 scruffy kernel: [294433.260536] EXT4-fs warning (device sde1): 
ext4_dx_add_entry:2190: Directory (ino: 30017692) index full, reach max htree 
level :2
Sep 11 21:53:47 scruffy kernel: [294433.260540] EXT4-fs warning (device sde1): 
ext4_dx_add_entry:2194: Large directory feature is not enabled on this 
filesystem

It got the error while trying to write a file in
~/.cache/chromium/Default/Cache. Turns out that after running
rdiff-backup for years I'd accumulated over 6 million files in
/backup/scruffy/rdiff-backup-data/increments/home/waltman/.cache/chromium/Default/Cache
It's a bit fuzzy how many files you can add to an ext4 directory, but
it looks like I hit the limit.

I added ~/.cache/chromium to my exclude list and restarted the
backup. It looks a lot happier now.

Walt