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https://issues.apache.org/jira/browse/HDFS-7240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16250063#comment-16250063
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Wei Yan commented on HDFS-7240:
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Thanks [~shv] for the detailed notes.
Have a qq there
{quote}
2. A single NameNode with namespace implemented as KV-collection. The
KV-collection is partitionable in memory, which allows breaking the single lock
restriction of current NN. Performance gains not measured yet.
3. Split the KV-namespace into two or more physical NNs.
{quote}
How does this align with the router-based federation HDFS-10467?
> Object store in HDFS
> --------------------
>
> Key: HDFS-7240
> URL: https://issues.apache.org/jira/browse/HDFS-7240
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: Jitendra Nath Pandey
> Assignee: Jitendra Nath Pandey
> Attachments: HDFS Scalability and Ozone.pdf, HDFS-7240.001.patch,
> HDFS-7240.002.patch, HDFS-7240.003.patch, HDFS-7240.003.patch,
> HDFS-7240.004.patch, HDFS-7240.005.patch, HDFS-7240.006.patch,
> Ozone-architecture-v1.pdf, Ozonedesignupdate.pdf, ozone_user_v0.pdf
>
>
> This jira proposes to add object store capabilities into HDFS.
> As part of the federation work (HDFS-1052) we separated block storage as a
> generic storage layer. Using the Block Pool abstraction, new kinds of
> namespaces can be built on top of the storage layer i.e. datanodes.
> In this jira I will explore building an object store using the datanode
> storage, but independent of namespace metadata.
> I will soon update with a detailed design document.
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