Bug 36342

Summary:	bond-primary is never written to UCR
Product:	UCS	Reporter:	Janis Meybohm <meybohm>
Component:	UMC - Basic settings	Assignee:	Florian Best <best>
Status:	CLOSED FIXED	QA Contact:	Philipp Hahn <hahn>
Severity:	normal
Priority:	P5	CC:	gohmann, grandjean, jmm, stephan.hendl
Version:	UCS 3.2
Target Milestone:	UCS 4.0-0-errata
Hardware:	Other
OS:	Linux
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Bug Depends on:	36341, 37097
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Description Janis Meybohm

2014-10-29 16:38:19 CET

I guess it needs to be fixed for UCS 4.0 as well.

+++ This bug was initially created as a clone of Bug #36341 +++

2014102821000257

The selected primary interface in the bonding wizard is never written into UCR.

This is problematic in scenarios where one of the network paths is prefered (faster for example). In case of failure, the bond switches to the (slower) fallback interface/path but never switches back to the prefered (primary) interface/path when that one is back up.


Workaround:
Configure manually via UCR:
  ucr set interfaces/bond1/options/X="bond-primary ethN"

Don't know if that gets overridden when re-running the UMC wizard.


Manuel switch to the prefered interface is also possible at runtime via ifenslave, e.g.:
# ifenslave -c bond0 eth0

Comment 1 Florian Best

2014-11-21 16:56:34 CET

YAML: 2014-11-21-univention-system-setup.yaml

Comment 2 Philipp Hahn

2014-11-27 18:45:07 CET

OK: r56050
OK: aptitude install '?source-package(univention-system-setup)?installed'
OK: bond-primary eth1
FAIL: cat /sys/class/net/bond0/bonding/primary
 this is empty - looks like a bug in /etc/network/if-pre.up/ifenslave
 manually setting it works - therefore I close this bug as verified
 This is <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=712656> or <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=699445>, which contains the patch <https://bugs.debian.org/cgi-bin/bugreport.cgi?msg=10;filename=ifenslave_20-21.debdiff;att=1;bug=699445>
 Continuing with manual work-around.
OK: 2014-11-21-univention-system-setup.yaml
OK:
 domiflist pt70-master
 domif-setlink pt70-master vnet1 down
 domif-setlink pt70-master vnet1 up
 domif-setlink pt70-master vnet2 down
 domif-setlink pt70-master vnet2 up

Comment 3 Moritz Muehlenhoff

2014-12-04 12:22:22 CET

http://errata.univention.de/ucs/4.0/2.html