Bug 24522 – 02univention-directory-notifier.inst fails to start UDL - runsv

Bug 24522 - 02univention-directory-notifier.inst fails to start UDL - runsv


Summary:	02univention-directory-notifier.inst fails to start UDL - runsv

Status:	RESOLVED WONTFIX

Product:	UCS
Classification:	Unclassified
Component:	Notifier (univention-directory-notifier)
Version:	UCS 4.2
Hardware:	Other Linux

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

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Keywords:

Duplicates:	11889 (view as bug list)
Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2011-11-10 17:36 CET by Arvid Requate
Modified:	2020-07-03 20:55 CEST (History)
CC List:	3 users (show)

See Also:	43687
What kind of report is it?:	Bug Report
What type of bug is this?:	6: Setup Problem: Issue for the setup process
Who will be affected by this bug?:	5: Will affect all installed domains
How will those affected feel about the bug?:	1: Nuisance – not a big deal but noticeable
User Pain:	0.171
Enterprise Customer affected?:
School Customer affected?:
ISV affected?:
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Max CVSS v3 score:

Flags:	hahn: Patch_Available+

Attachments
Fix runsv supervision (1.54 KB, patch) 2017-04-21 13:22 CEST, Philipp Hahn	Details \| Diff
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Description Arvid Requate

2011-11-10 17:36:35 CET

Folgende Fehlermeldung findet sich im join.log auf einem UCS 3.0-RC amd64 Master:

Configure 02univention-directory-notifier.inst
Starting Univention Directory Notifier daemon.
warning: univention-directory-notifier: unable to open supervise/ok: file does not exist
failed.

Comment 1 Stefan Gohmann

2013-04-09 21:13:12 CEST

Das scheint nur ein temporäres Problem zu sein.

Comment 2 Philipp Hahn

2017-04-21 13:21:58 CEST

UCS-3.0 is OoM.
runit will be phased out by systemd anyway: Bug #43687
It's only of cosmetic significance: only "warning".
But directly after installation the notifier is not running; only the reboot fixes it.

FYI:

# mkdir -p /etc/runit/test
# touch /etc/runit/test/down
# ln -snf /usr/share/univention-runit/sleep-dynamic /etc/runit/test/finish
# cat >>/etc/runit/test/run <<__SH__
#!/bin/sh
while [ ! -e /tmp/test ]
do
  sleep 10
done
__SH__
# chmod +x >>/etc/runit/test/run
# ln -snf /etc/runit/test /etc/runit/univention ; sv up test
warning: test: unable to open supervise/ok: file does not exist

The issue is caused by "runsvdir" not having picked up the new service yet when the "up" is issued. The corresponding "runsv" process has not been started yet:
# man 8 runsvdir
..
> At least every five seconds runsvdir checks ....

So adding a "sleep 5" 8plus error handling) in 02univention-directory-notifier.inst:39 should fix it.

FYI: ucs-test/tests/00_base/check_log_files_definitions.py:147 currently ignores that line as the bug is triggered everywhere.

Comment 3 Philipp Hahn

2017-04-21 13:22:28 CEST

Created attachment 8796 [details]
Fix runsv supervision

Comment 4 Philipp Hahn

2017-04-21 13:22:56 CEST

*** Bug 11889 has been marked as a duplicate of this bug. ***

Comment 5 Ingo Steuwer

2020-07-03 20:55:07 CEST

This issue has been filed against UCS 4.2.

UCS 4.2 is out of maintenance and many UCS components have changed in later releases. Thus, this issue is now being closed.

If this issue still occurs in newer UCS versions, please use "Clone this bug" or reopen it and update the UCS version. In this case please provide detailed information on how this issue is affecting you.