Bug 54874 – RuntimeError: dictionary changed size during iteration in UMC-Server

Bug 54874 - RuntimeError: dictionary changed size during iteration in UMC-Server


Summary:	RuntimeError: dictionary changed size during iteration in UMC-Server

Status:	RESOLVED DUPLICATE of bug 43633

Product:	UCS
Classification:	Unclassified
Component:	UMC (Generic)
Version:	UCS 5.0
Hardware:	Other Linux

Importance:	P5 normal (vote)
Target Milestone:	---
Assigned To:	UMC maintainers
QA Contact:	UMC maintainers

URL:
Keywords:	python3-migration

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2022-06-15 15:08 CEST by Florian Best
Modified:	2023-06-09 16:58 CEST (History)
CC List:	1 user (show)

See Also:
What kind of report is it?:	Bug Report
What type of bug is this?:	4: Minor Usability: Impairs usability in secondary scenarios
Who will be affected by this bug?:	2: Will only affect a few installed domains
How will those affected feel about the bug?:	3: A User would likely not purchase the product
User Pain:	0.137
Enterprise Customer affected?:
School Customer affected?:
ISV affected?:
Waiting Support:
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Ticket number:
Bug group (optional):	Regression
Max CVSS v3 score:

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Description Florian Best

2022-06-15 15:08:56 CEST

I saw the following traceback in a customer environment:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/univention/management/console/base.py", line 344, in __error_handling
    six.reraise(etype, exc, etraceback)
  File "/usr/lib/python3/dist-packages/six.py", line 693, in reraise
    raise value
  File "/usr/lib/python3/dist-packages/univention/management/console/base.py", line 247, in execute
    function.__func__(self, request, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/univention/management/console/protocol/session.py", line 975, in _authentication_finished2
    self.processor.set_credentials(**self.__credentials)
  File "/usr/lib/python3/dist-packages/univention/management/console/protocol/session.py", line 188, in set_credentials
    self.update_module_passwords()
  File "/usr/lib/python3/dist-packages/univention/management/console/protocol/session.py", line 398, in update_module_passwords
    for module_name, proc in self.__processes.items():
RuntimeError: dictionary changed size during iteration

Comment 1 Oliver Friedrich

2022-11-08 18:13:56 CET

Occured in my test env, too.

I tried to start the UCS@School-Import-Modul and "sometimes" got the same issue.

Comment 2 Florian Best

2023-06-09 16:58:15 CEST

obsolete by Bug #43633. We changed the architecture w.r.t. updating password in running module processes:
the old way was to send the information when the password was changed.
the new way is to send the credentials along with every request and if they changed the new credentials are used instead.

*** This bug has been marked as a duplicate of bug 43633 ***