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https://issues.apache.org/jira/browse/HDFS-5477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Edward Bortnikov updated HDFS-5477:
-----------------------------------
Attachment: Block-Manager-as-a-Service.pdf
End-to-end specification and design of the Block-Manager-as-a-service feature,
addressing the issues raised in the past discussions.
> Block manager as a service
> --------------------------
>
> Key: HDFS-5477
> URL: https://issues.apache.org/jira/browse/HDFS-5477
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 2.0.0-alpha, 3.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: Block-Manager-as-a-Service.pdf, Proposal.pdf,
> Proposal.pdf, Standalone BM.pdf, Standalone BM.pdf
>
>
> The block manager needs to evolve towards having the ability to run as a
> standalone service to improve NN vertical and horizontal scalability. The
> goal is reducing the memory footprint of the NN proper to support larger
> namespaces, and improve overall performance by decoupling the block manager
> from the namespace and its lock. Ideally, a distinct BM will be transparent
> to clients and DNs.
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