Bug 56515 – Add monitoring for Samba/AD with mdb backend (free pages)

Bug 56515 - Add monitoring for Samba/AD with mdb backend (free pages)


Summary:	Add monitoring for Samba/AD with mdb backend (free pages)

Status:	NEW

Product:	UCS
Classification:	Unclassified
Component:	Monitoring (Prometheus or Nagios)
Version:	UCS 5.0
Hardware:	Other Linux

Importance:	P3 normal (vote)
Target Milestone:	---
Assigned To:	UCS maintainers
QA Contact:	UCS maintainers

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Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2023-09-01 15:15 CEST by Andreas Peichert
Modified:	2023-09-01 19:32 CEST (History)
CC List:	1 user (show)

See Also:	56401
What kind of report is it?:	Feature Request
What type of bug is this?:	---
Who will be affected by this bug?:	---
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Enterprise Customer affected?:	Yes
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Description Andreas Peichert

2023-09-01 15:15:42 CEST

Currently Samba4 has by default "backend = tdb" configured, and optionally one could migrate to "lmdb" with a help article and a script
https://help.univention.com/t/pre-update-checks-for-ucs-5-0-0-aborts-warning-about-a-very-large-samba-tdb-database/18014

For newly planned very large environments of our enterprise customers, we should consider to have an option for new rollouts to start direct with lmdb, i.e. by setting some UCRv in front of the installation of the samba4 app. This way tdb could still be the default.

- configure backend TDB to LMDB (in front of the setup)
- configure maximum LMDB database size
- monitoring for LMDB (Nagios / prometheus)

https://wiki.samba.org/index.php/Using_the_lmdb_database_backend

Comment 1 Arvid Requate

2023-09-01 19:31:51 CEST

> - configure backend TDB to LMDB (in front of the setup)
> - configure maximum LMDB database size

Done via Bug #56401

- monitoring for LMDB (Nagios / prometheus)

TODO, I'll adjusted the subject of the bug accordingly.

I guess it could be similar to this check:

/usr/lib/nagios/plugins/check_univention_slapd_mdb_maxsize