[
https://issues.apache.org/jira/browse/YARN-1042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13736520#comment-13736520
]
Junping Du commented on YARN-1042:
----------------------------------
Agree. IMO, YARN-796 just address more admin labels for each node, but failure
group info is already expressed in network topology. Here we need a stateful
allocation for a bunch of containers rather than do assignment for each
container statelessly, and we need a way to express the requirement of topology
relation between containers.
> add ability to specify affinity/anti-affinity in container requests
> -------------------------------------------------------------------
>
> Key: YARN-1042
> URL: https://issues.apache.org/jira/browse/YARN-1042
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: resourcemanager
> Affects Versions: 3.0.0
> Reporter: Steve Loughran
>
> container requests to the AM should be able to request anti-affinity to
> ensure that things like Region Servers don't come up on the same failure
> zones.
> Similarly, you may be able to want to specify affinity to same host or rack
> without specifying which specific host/rack. Example: bringing up a small
> giraph cluster in a large YARN cluster would benefit from having the
> processes in the same rack purely for bandwidth reasons.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
