-Re: Requesting containers on a specific host
Arun C Murthy 2013-07-04, 12:28
To guarantee nodes on a specific container you need to use the whitelist feature we added recently:
On Jul 4, 2013, at 3:14 AM, Krishna Kishore Bonagiri <[EMAIL PROTECTED]> wrote:
> I could get containers on specific nodes using addContainerRequest() on AMRMClient. But there are issues with it. I have two nodes, node1 and node2 in my cluster. And, my Application Master is trying to get 3 containers on node1, and 3 containers on node2 in that order.
> While trying to request on node1, it sometimes gives me those on node2, and vice verse. When I get a container on a different node than the one I need, I release it and make a fresh request. I am having to do like that forever to get a container on the node I need.
> Though the node I am requesting has enough resources, why does it keep giving me containers on the other node? How can I make sure I get a container on the node I want?
> Note: I am using the default scheduler, i.e. Capacity Scheduler.
> On Fri, Jun 21, 2013 at 7:25 PM, Arun C Murthy <[EMAIL PROTECTED]> wrote:
> Check if the hostname you are setting is the same in the RM logs…
> On Jun 21, 2013, at 2:15 AM, Krishna Kishore Bonagiri <[EMAIL PROTECTED]> wrote:
>> I am trying to get container on a specific host, using setHostName(0 call on ResourceRequest, but could not get allocated anything forever, which just works fine when I change the node name to "*". I am working on a single node cluster, and I am giving the name of the single node I have in my cluster.
>> Is there any specific format that I need to give for setHostName(), why is it not working...
> Arun C. Murthy
> Hortonworks Inc.
Arun C. Murthy