Bug 50765 – ucs-school-umc-exam/conffiles/etc/cron.d/ucs-school-umc-exam-master is also executed on DC backup

Bug 50765 - ucs-school-umc-exam/conffiles/etc/cron.d/ucs-school-umc-exam-master is also executed on DC backup


Summary:	ucs-school-umc-exam/conffiles/etc/cron.d/ucs-school-umc-exam-master is also e...

Status:	CLOSED FIXED

Product:	UCS@school
Classification:	Unclassified
Component:	UMC - Exam mode
Version:	UCS@school 4.4
Hardware:	Other Linux

Importance:	P5 normal (vote)
Target Milestone:	UCS@school 4.4 v4-errata
Assigned To:	Tobias Wenzel
QA Contact:	Sönke Schwardt-Krummrich

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Blocks:
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Reported:	2020-01-31 16:45 CET by Sönke Schwardt-Krummrich
Modified:	2023-05-26 15:40 CEST (History)
CC List:	1 user (show)

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Description Sönke Schwardt-Krummrich

2020-01-31 16:45:13 CET

The cron job ucs-school-umc-exam/conffiles/etc/cron.d/ucs-school-umc-exam-master is also executed on DC backup systems since the master's meta package ucs-school-master is also installed on DC backup systems.

Usually the UCS system's time is NTP synchronized →
all DC Master and DC Backup start this cron job at the same time to stop existing exams. Therefore several processes make LDAP changes simultaneously which already caused trouble on customer systems (tracebacks).

Comment 1 Tobias Wenzel

2020-02-07 11:35:24 CET

Fixed by making sure the server/role is dc master in 
ucs-school-umc-exam/conffiles/etc/cron.d/ucs-school-umc-exam
and printing 'Skipping exam-and-room-cleanup on backup.' otherwise.

Comment 2 Tobias Wenzel

2020-02-11 11:28:46 CET

[4.4 14efdf3f4] Bug #50765: Add server/role variable to ucs-school-umc-exam-master.univention-config-registry and ucs-school-import.univention-config-registry.

Package: ucs-school-umc-exam
Version: 9.0.1-29A~4.4.0.202002111005
Branch: ucs_4.4-0
Scope: ucs-school-4.4

Comment 3 Sönke Schwardt-Krummrich

2020-02-11 13:52:39 CET

OK: functional change
OK: code change
OK: installation
OK: update
--: ucs-test
OK: changelog entry
UPDATED: advisory
OK: package built and installable

Comment 4 Sönke Schwardt-Krummrich

2020-02-13 21:42:37 CET

UCS@school 4.4 v4 has been released.

https://docs.software-univention.de/changelog-ucsschool-4.4v4-de.html

If this error occurs again, please clone this bug.