To guarantee nodes on a specific container you need to use the whitelist feature we added recently: https://issues.apache.org/jira/browse/YARN-398 Arun
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. > > Thanks, > Kishore > > > 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: > >> Hi, >> 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... >> >> Thanks, >> Kishore > > -- > Arun C. Murthy > Hortonworks Inc. > http://hortonworks.com/ > > > -- Arun C. Murthy Hortonworks Inc. http://hortonworks.com/
