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https://issues.apache.org/jira/browse/HADOOP-8198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13251292#comment-13251292
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Eli Collins commented on HADOOP-8198:
-------------------------------------
Use case 2 is the primary motivation,as you point out use case #1 can be
addressed purely with host-level bonding. The two scenarios I care most about,
that will be used widely, are:
# Systems where the on-cluster traffic is on a cluster-private, high-speed (eg
infiniband) network, and off-cluster access from clients goes over a separate
network.
# Systems where the cluster needs a dedicated, high-performance link with an
adjacent system (another Hadoop cluster, an EDW, etc)
Agree wrt HADOOP-7510, I've been discussing moving tokens off IPs and to
hostname or a host-level identifier with Daryn. I think we need to tackle this
for HA as well, he's got some good ideas here.
> Support multiple network interfaces
> -----------------------------------
>
> Key: HADOOP-8198
> URL: https://issues.apache.org/jira/browse/HADOOP-8198
> Project: Hadoop Common
> Issue Type: New Feature
> Components: io, performance
> Reporter: Eli Collins
> Assignee: Eli Collins
> Attachments: MultipleNifsv1.pdf, MultipleNifsv2.pdf,
> MultipleNifsv3.pdf
>
>
> Hadoop does not currently utilize multiple network interfaces, which is a
> common user request, and important in enterprise environments. This jira
> covers a proposal for enhancements to Hadoop so it better utilizes multiple
> network interfaces. The primary motivation being improved performance,
> performance isolation, resource utilization and fault tolerance. The attached
> design doc covers the high-level use cases, requirements, a proposal for
> trunk/0.23, discussion on related features, and a proposal for Hadoop 1.x
> that covers a subset of the functionality of the trunk/0.23 proposal.
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