[drbd-mc] Possible to save root password?

Caspar Smit c.smit at truebit.nl
Thu Jan 13 12:05:57 CET 2011


Rasto,

Thanks! I totally missed that you could left click the background!
This fixed all migration contraints :)

For the password I will use passwordless ssh keys, thanks for the tip.

Kind regards,

Caspar Smit
Systemengineer
True Bit Resources B.V.
Ampèrestraat 13E
1446 TP  Purmerend

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@: c.smit at truebit.nl
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2011/1/13 Rasto Levrinc <rasto.levrinc at linbit.com>:
>
> On Thu, January 13, 2011 11:26 am, Caspar Smit wrote:
>> Hi all,
>>
>>
>> I'm trying the drbd mc for managing a HBv3/Pacemaker cluster using
>> DRBD and so far I like it a lot.
>>
>>
>> Few questions:
>>
>>
>> 1) Is it possible to save the root password somewhere so I don't have
>> to login to the nodes upon starting up drbd-mc?
>
> Saving root passwords wouldn't be a good idea. The safer way is to set up
> passwordless SSH keys.
>
>>
>> 2) I have 4 drbd master/slave sets with a group of services on each
>> (with colocation/order constraints).
>> I have location contraints to prefer node1 for all resources.
>>
>>
>> When I do left click on node1 and do "Migrate all resouces away" all
>> resources get migrated to node2 with no problem, so far so good. How would
>> I migrate all resources back to node1
>> because I can't see a "remove migration constraint" button on node1? When I
>> manually try to migrate the groups back with "remove migration constraint"
>> it takes "no action" (i can only unmigrate the DRBD master slave sets)
>>
>> I have to go into the config manually and delete the cli location
>> constraints to get everything back to normal.
>>
>> I hope I explained well enough
>
> First, there is a "Remove All Migration Constraints" if you right-click on
> the background, not on the node, since it is not node specific.
>
> Second "Remove Migration Constraint" in the group menu removes only
> migration constraint of the group, not on every group resource. You could
> still go through all the group services and press "remove migration
> constraint", but anyway it is a usability bug and I am going to fix it
> right away.
>
> Rasto Levrinc
>
>
> --
> : Dipl-Ing Rastislav Levrinc
> : DRBD MC http://oss.linbit.com/drbd-mc/
> : DRBD MC http://www.drbd.org/mc/management-console/
> : DRBD/HA support and consulting http://www.linbit.com/
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>
>
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