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From Klaus Ma <>
Subject Re: Altering agent resrouces after startup
Date Wed, 20 Apr 2016 09:18:00 GMT
Hi Aaron,

Currently, the resources in slave can NOT be updated after started; the QoS
can only report revocable resources. But I think this reasonable
requirement to detect resource on the fly; would you help to open an JIRA
for this? I think there're two sub-requirement of this scenario:

1. The resources of slave will be updated on the fly; it's different with
MESOS-1739 which focus on agent restart
2. Self-defined resources which is only consumed special resources

If any comments, please let me know.


On Wed, Apr 20, 2016 at 4:56 PM Aaron Carey <> wrote:

> Hi All,
> I was wondering if it was possible somehow to alter an agent's resources
> after it has started?
> Example: we are dynamically attaching and detaching EBS volumes to EC2
> hosts running as agents. (This is part of our docker volume setup using
> RexRay). When a host has an EBS volume attached to it I'd like to be able
> to mark that as a new resource on the agent. Note that it's not the disk
> space we care about here, just the name of the volume itself. This would
> then allow us to schedule tasks that require access to the data on that EBS
> volume all on the same host.
> Anyone have any ideas?
> Thanks!
> Aaron

Da (Klaus), Ma (马达), PMP® | Advisory Software Engineer
IBM Platform Development & Support, STG, IBM GCG
+86-10-8245 4084 | |

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