Description of problem:
--------------------------------

When I execute "leapp preupgrade" command on the RHEL-8 machine on which Red Hat Satellite 6.16 is installed, it fails with the following error -

Risk Factor: high (error)
Title: Actor target_userspace_creator unexpectedly terminated with exit code: 1
Summary: Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/leapp/libraries/stdlib/{}init{}.py", line 185, in run
  File "/usr/lib/python3.6/site-packages/leapp/libraries/stdlib/call.py", line 155, in _call
OSError: [Errno 24] Too many open files

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/overlaygen.py", line 525, in _mount_dnf_cache
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/overlaygen.py", line 591, in create_source_overlay
  File "/etc/leapp/repos.d/system_upgrade/common/actors/targetuserspacecreator/libraries/userspacegen.py", line 1246, in perform
  File "/etc/leapp/repos.d/system_upgrade/common/actors/targetuserspacecreator/libraries/userspacegen.py", line 1108, in _create_target_userspace
  File "/etc/leapp/repos.d/system_upgrade/common/actors/targetuserspacecreator/libraries/userspacegen.py", line 625, in _prep_repository_access
  File "/etc/leapp/repos.d/system_upgrade/common/actors/targetuserspacecreator/libraries/userspacegen.py", line 569, in _copy_certificates
  File "/etc/leapp/repos.d/system_upgrade/common/actors/targetuserspacecreator/libraries/userspacegen.py", line 518, in _copy_decouple
  File "/etc/leapp/repos.d/system_upgrade/common/actors/targetuserspacecreator/libraries/userspacegen.py", line 347, in _mkdir_with_copied_mode
  File "/usr/lib/python3.6/site-packages/leapp/libraries/stdlib/{}init{}.py", line 213, in run
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 286, in create_audit_entry
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 87, in store
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 73, in get_connection
  File "/usr/lib/python3.6/site-packages/leapp/cli/commands/upgrade/util.py", line 26, in wrapper
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 60, in create_connection
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 27, in _initialize_database
sqlite3.OperationalError: unable to open database file

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/overlaygen.py", line 591, in create_source_overlay
  File "/usr/lib64/python3.6/contextlib.py", line 99, in {}exit{}
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/overlaygen.py", line 525, in _mount_dnf_cache
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/mounting.py", line 366, in {}exit{}
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/mounting.py", line 359, in umount
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/mounting.py", line 325, in _cleanup
  File "/usr/lib/python3.6/site-packages/leapp/libraries/stdlib/{}init{}.py", line 179, in run
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1296, in debug
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1444, in _log
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1454, in handle
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1516, in callHandlers
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 865, in handle
  File "/usr/lib/python3.6/site-packages/leapp/logger/{}init{}.py", line 40, in emit
  File "/usr/lib/python3.6/site-packages/leapp/logger/{}init{}.py", line 45, in _do_emit
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 87, in store
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 73, in get_connection
  File "/usr/lib/python3.6/site-packages/leapp/cli/commands/upgrade/util.py", line 26, in wrapper
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 60, in create_connection
sqlite3.OperationalError: unable to open database file

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/overlaygen.py", line 591, in create_source_overlay
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/mounting.py", line 366, in {}exit{}
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/mounting.py", line 359, in umount
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/mounting.py", line 325, in _cleanup
  File "/usr/lib/python3.6/site-packages/leapp/libraries/stdlib/{}init{}.py", line 179, in run
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1296, in debug
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1444, in _log
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1454, in handle
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1516, in callHandlers
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 865, in handle
  File "/usr/lib/python3.6/site-packages/leapp/logger/{}init{}.py", line 40, in emit
  File "/usr/lib/python3.6/site-packages/leapp/logger/{}init{}.py", line 45, in _do_emit
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 87, in store
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 73, in get_connection
  File "/usr/lib/python3.6/site-packages/leapp/cli/commands/upgrade/util.py", line 26, in wrapper
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 60, in create_connection
sqlite3.OperationalError: unable to open database file

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/overlaygen.py", line 591, in create_source_overlay
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/mounting.py", line 366, in {}exit{}
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/mounting.py", line 359, in umount
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/mounting.py", line 325, in _cleanup
  File "/usr/lib/python3.6/site-packages/leapp/libraries/stdlib/{}init{}.py", line 179, in run
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1296, in debug
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1444, in _log
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1454, in handle
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1516, in callHandlers
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 865, in handle
  File "/usr/lib/python3.6/site-packages/leapp/logger/{}init{}.py", line 40, in emit
  File "/usr/lib/python3.6/site-packages/leapp/logger/{}init{}.py", line 45, in _do_emit
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 87, in store
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 73, in get_connection
  File "/usr/lib/python3.6/site-packages/leapp/cli/commands/upgrade/util.py", line 26, in wrapper
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 60, in create_connection
sqlite3.OperationalError: unable to open database file

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/leapp/repository/actor_definition.py", line 74, in _do_run
  File "/usr/lib/python3.6/site-packages/leapp/actors/{}init{}.py", line 289, in run
  File "/etc/leapp/repos.d/system_upgrade/common/actors/targetuserspacecreator/actor.py", line 58, in process
  File "/usr/lib/python3.6/site-packages/leapp/utils/deprecation.py", line 42, in process_wrapper
  File "/etc/leapp/repos.d/system_upgrade/common/actors/targetuserspacecreator/libraries/userspacegen.py", line 1256, in perform
  File "/usr/lib64/python3.6/contextlib.py", line 99, in {}exit{}
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/overlaygen.py", line 593, in create_source_overlay
  File "/etc/leapp/repos.d/system_upgrade/common/libraries/overlaygen.py", line 326, in cleanup_scratch
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1296, in debug
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1444, in _log
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1454, in handle
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 1516, in callHandlers
  File "/usr/lib64/python3.6/logging/{}init{}.py", line 865, in handle
  File "/usr/lib/python3.6/site-packages/leapp/logger/{}init{}.py", line 40, in emit
  File "/usr/lib/python3.6/site-packages/leapp/logger/{}init{}.py", line 45, in _do_emit
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 87, in store
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 73, in get_connection
  File "/usr/lib/python3.6/site-packages/leapp/cli/commands/upgrade/util.py", line 26, in wrapper
  File "/usr/lib/python3.6/site-packages/leapp/utils/audit/{}init{}.py", line 60, in create_connection
sqlite3.OperationalError: unable to open database file

How reproducible:
-------------------------

Always. I re-tried the leapp process after rebooting the Satellite Server 6.16, only to be again greeted by the same error  

I also tried finding already existing Knowledge Base articles to see if this issue can be resolved or not. However, I did not find any existing articles to resolve the issue.

Is this issue a regression from an earlier version:
-------------------------------------------------------------------

No.

Steps to Reproduce:
---------------------------

1. Create a RHEL-8 VM with the latest version of RHEL-8.x i.e. 8.10.

2. Install Red Hat Satellite 6.16 on it with the basic configuration done.

3. Try performing the leapp upgrade by following the steps outlined in the official documentation linked down below -

    https://dxp-docp-prod.apps.ext-waf.spoke.prod.us-west-2.aws.paas.redhat.com/documentation/en-us/red_hat_satellite/6.16/html-single/upgrading_connected_red_hat_satellite_to_6.16/index?lb_target=preview#upgrading-satellite-or-capsule-in-place-using-leapp_upgrading-connected
    
    

Actual behavior:
[Describe the issue in detail, including what is happening and where]
------------------------------------------------------------------------------------------------

The leapp upgrade fails with the error shown in the above description upon executing the "leapp preupgrade" command on this freshly installed Satellite Server 6.16 on a RHEL-8.10 VM.

[ajambhul@satellite616-rhel8 ~]$ cat /etc/redhat-release 
Red Hat Enterprise Linux release 8.10 (Ootpa)

[ajambhul@satellite616-rhel8 ~]$ rpm -qa satellite
satellite-6.16.0-1.el8sat.noarch

[ajambhul@satellite616-rhel8 ~]$ dnf repolist
Not root, Subscription Management repositories not updated
repo id                                                                                                   repo name
Satellite_Engineering_Satellite_6_16_Composes_Satellite_6_16_RHEL8                                        Satellite 6.16 RHEL8
Satellite_Engineering_Satellite_6_16_Composes_Satellite_Maintenance_6_16_RHEL8                            Satellite Maintenance 6.16 RHEL8
rhel-8-for-x86_64-appstream-rpms                                                                          Red Hat Enterprise Linux 8 for x86_64 - AppStream (RPMs)
rhel-8-for-x86_64-baseos-rpms                                                                             Red Hat Enterprise Linux 8 for x86_64 - BaseOS (RPMs)

Expected behavior:
[Describe what should be happening instead]
---------------------------------------------------------------

The "leapp preupgrade" command on this freshly installed Satellite Server 6.16 on a RHEL-8.10 VM should complete successfully in order to proceed with the actual upgrade step.

Business Impact / Additional info:
----------------------------------------------

Cannot perform leapp upgrade successfully.