[
https://issues.apache.org/jira/browse/YARN-4879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Subru Krishnan updated YARN-4879:
---------------------------------
Summary: Enhance Allocate Protocol to Identify Requests Explicitly (was:
Proposal for a simple (delta) allocate protocol)
> Enhance Allocate Protocol to Identify Requests Explicitly
> ---------------------------------------------------------
>
> Key: YARN-4879
> URL: https://issues.apache.org/jira/browse/YARN-4879
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: applications, resourcemanager
> Reporter: Subru Krishnan
> Assignee: Subru Krishnan
> Attachments: SimpleAllocateProtocolProposal-v1.pdf
>
>
> For legacy reasons, the current allocate protocol expects expanded requests
> which represent the cumulative request for any change in resource
> constraints. This is not only very difficult to comprehend but makes it
> impossible for the scheduler to associate container allocations to the
> original requests. This problem is amplified by the fact that the expansion
> is managed by the AMRMClient which makes it cumbersome for non-Java clients
> as they all have to replicate the non-trivial logic. In this JIRA, we are
> proposing a delta allocate protocol where the AM will need to only specify
> changes in resource constraints.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
