Think you're "Stuck" on "Verifying backend data"?

I’ll look tonight when I get home.

I’m also going to ask in the Unraid Duplicati forum where the LSIO container authors hang out:
https://forums.unraid.net/topic/56610-support-linuxserverio-duplicati/?do=findComment&comment=766186

# apropos
sh: 46: apropos: not found

# ls -lurt
total 12144448
-rw------- 1 abc users 2610144256 May 23 21:23  76817168699074726577.sqlite
-rw------- 1 abc users      36864 May 23 21:23  Duplicati-server.sqlite
-rw------- 1 abc users      33792 May 23 21:23 'backup 20190507124431.sqlite'
drwxr-xr-x 1 abc users         14 May 23 21:23  control_dir_v2
-rw------- 1 abc users      33792 May 30 20:18 'backup 20190530081801.sqlite'
-rw------- 1 abc users 2898245632 May 30 20:18  85768483748890787182.sqlite
-rw------- 1 abc users      33792 Jun  1 15:01 'backup 20190601030119.sqlite'
-rw------- 1 abc users 6265789440 Jun  1 15:01  90847171747474898982.sqlite
-rw------- 1 abc users      33792 Jun  3 17:27 'backup 20190603052717.sqlite'
-rw------- 1 abc users  401725440 Jun  3 17:27  87778971819090738175.sqlite
-rw------- 1 abc users  259816536 Aug 12 06:44  90847171747474898982.sqlite-journal

Was that about the current time at time of ls? Do ls -l or ls -lc show recent times?
Also check 90847171747474898982.sqlite which is probably the actual backup DB.
Temporary Files Used By SQLite says how -journal version is its rollback journal.

Because the container shares the same underlying hardware as Unraid, you could see whether you have some better analysis tools in Unraid itself for things like drive activity – I’d think that would be a main focus.

Docker container networking suggest checking on container from host depends on setup. I’m no expert…

Unraid open files plugin shows the following open:

/config/90847171747474898982.sqlite
/config/Duplicati-server.sqlite
/config/control_dir_v2/lock_v2
/tmp/dup-5b4069dd-f3f9-4743-beb9-837d9b778e33
/config/90847171747474898982.sqlite-journal
/tmp/dup-512d67cc-8d72-49f1-a133-3a6b83088119

From the container console:

# date
Wed Aug 14 16:51:47 PDT 2019
# ls -l
total 12144448
-rw------- 1 abc users 2610144256 Jun  3 15:52  76817168699074726577.sqlite
-rw------- 1 abc users 2898245632 Aug 12 06:38  85768483748890787182.sqlite
-rw------- 1 abc users  401725440 Jul 23 13:00  87778971819090738175.sqlite
-rw------- 1 abc users 6265789440 Aug 12 06:45  90847171747474898982.sqlite
-rw------- 1 abc users  259816536 Aug 12 06:45  90847171747474898982.sqlite-journal
-rw------- 1 abc users      33792 May  7 12:44 'backup 20190507124431.sqlite'
-rw------- 1 abc users      33792 May 30 20:18 'backup 20190530081801.sqlite'
-rw------- 1 abc users      33792 Jun  1 15:01 'backup 20190601030119.sqlite'
-rw------- 1 abc users      33792 Jun  3 17:27 'backup 20190603052717.sqlite'
drwxr-xr-x 1 abc users         14 May  7 12:22  control_dir_v2
-rw------- 1 abc users      36864 Aug 12 18:43  Duplicati-server.sqlite
# ls -lc
total 12144448
-rw------- 1 abc users 2610144256 Aug 12 06:30  76817168699074726577.sqlite
-rw------- 1 abc users 2898245632 Aug 12 06:38  85768483748890787182.sqlite
-rw------- 1 abc users  401725440 Aug 12 06:30  87778971819090738175.sqlite
-rw------- 1 abc users 6265789440 Aug 12 06:45  90847171747474898982.sqlite
-rw------- 1 abc users  259816536 Aug 12 06:45  90847171747474898982.sqlite-journal
-rw------- 1 abc users      33792 Aug 12 06:30 'backup 20190507124431.sqlite'
-rw------- 1 abc users      33792 Aug 12 06:30 'backup 20190530081801.sqlite'
-rw------- 1 abc users      33792 Aug 12 06:30 'backup 20190601030119.sqlite'
-rw------- 1 abc users      33792 Aug 12 06:30 'backup 20190603052717.sqlite'
drwxr-xr-x 1 abc users         14 Aug 12 06:30  control_dir_v2
-rw------- 1 abc users      36864 Aug 12 18:43  Duplicati-server.sqlite
# 

I don’t know how to look into what duplicati is up to from Unraid, but that one CPU core is still spinning at 100%.

Seems like the unraid forum hasn’t anything to say yet.

What destination is this, and how does that look? The DB files didn’t look very active as of your last post.

You can also try (Job) --> Show log --> Remote to see if it shows any motion. Also check live log again…

‘Attach to process’ doesn’t work for Mono Applications #3997 says it’s probably impossible to get a close study of where your mono is. Beyond that, I looked heavily over many days. FWIW Windows does better.

Does this happen lots? If so, setting up for debug in advance might be possible, but hard in a container…

The open /tmp/dup-* files are somewhat mysterious. What are the sizes and dates? What does file say?

If those are SQLite databases, DB Browser for SQLite (a.k.a. sqlitebrowser) could be used to look inside.