[ClusterLabs] Q: "migrating a clone" with crm shell

[Vladislav Bogdanov]

02.06.2015 10:37, Kristoffer Grönlund wrote:
> Ulrich Windl <Ulrich.Windl at rz.uni-regensburg.de> writes:
>
>> Hi!
>>
>> I have a globally-unique="false" interleave="true"  clone running on two nodes. For a software upgrade I want to disable the rsource on the node to be updated. There fore I tried "crm resource migrate my_clone PT10M", which did not work:
>>
>> --
>> Resource 'my_clone' not moved: active in 2 locations.
>> You can prevent 'my_clone' from running on a specific location with: --ban --host <name>
>> Error performing operation: Invalid argument
>> --
>>
>> I couldn't quite find out what the right command should be, especially as the "help migrate" says:
>> --
>> crm(live)resource# help migrate
>>
>> Migrate a resource to a different node. If node is left out, the
>> resource is migrated by creating a constraint which prevents it from
>> running on the current node. Additionally, you may specify a
>> lifetime for the constraint---once it expires, the location
>> constraint will no longer be active.
>>
>> Usage:
>> ...............
>>          migrate <rsc> [<node>] [<lifetime>] [force]
>> ...............
>> --
>>
>> I tried " crm resource migrate --ban --host active_node_name my_clone PT10M", but that triggers a syntax error:
>> --
>> usage: migrate <rsc> [<node>] [<lifetime>] [force]
>> --
>>
>> How should I "temporarily shutdown" the resource of the clone on one node?
>
> The crm resource migrate command is not compatible with migrating
> clones.

May be it is the time to add that? :)
'--ban' exists for years in crm_resource.

>
> How about creating a temporary constraint to force the clone off the
> particular node?
>
> crm configure location ban my_clone -inf: PT10M
>
> Then once finished, remove the constraint.
>
>>
>> Regards,
>> Ulrich
>>
>>
>>
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>