Bug 56087 – RuntimeError: dictionary changed size during iteration

Bug 56087 - RuntimeError: dictionary changed size during iteration


Summary:	RuntimeError: dictionary changed size during iteration

Status:	CLOSED 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:
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Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2023-05-23 11:46 CEST by Tim Breidenbach
Modified:	2023-06-19 15:36 CEST (History)
CC List:	3 users (show)

See Also:	53249
What kind of report is it?:	Bug Report
What type of bug is this?:	1: Cosmetic issue or missing function but workaround exists
Who will be affected by this bug?:	1: Will affect a very few installed domains
How will those affected feel about the bug?:	1: Nuisance – not a big deal but noticeable
User Pain:	0.006
Enterprise Customer affected?:	Yes
School Customer affected?:
ISV affected?:
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Description Tim Breidenbach

2023-05-23 11:46:40 CEST

UCS: 5.0-3 errata638

i found this traceback in a customer env (they stressed the system in with an (for me unknown) load test.
The services univention-management-* didnt fail. I simply restarted and everything seems to be fine.

"""
16.05.23 08:35:07.889  MAIN        ( ERROR   ) : FATAL error: Traceback (most recent call last): 
 File "/usr/sbin/univention-management-console-web-server", line 1581, in run
    notifier.loop()
  File "/usr/lib/python3/dist-packages/notifier/nf_generic.py", line 306, in loop
    step()
  File "/usr/lib/python3/dist-packages/notifier/nf_generic.py", line 249, in step
    for i, timer in list(__timers.items()):
RuntimeError: dictionary changed size during iteration
"""

original error massage when logging into UCS was

"""
{"status": 503, "message": "The Univention Management Console Web Server could not be reached. Please restart univention-management-console-web-server or try again later."}
"""

Comment 1 Philipp Hahn

2023-05-23 12:41:45 CEST

Prio:
It only happened once so far → Will only affect a few domains
"I simply restarted and everything seems to be fine" → Cosmetic

Comment 2 Florian Best

2023-06-09 16:56:19 CEST

obsolete by Bug #43633

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