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https://issues.apache.org/jira/browse/HDFS-7240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14609099#comment-14609099
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Jitendra Nath Pandey commented on HDFS-7240:
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For prefix scans we are planning to support range partitioned index in the
storage container manager. I will update the design document. That will allow
users to have hierarchy under the bucket.
The storage volumes do not really change the semantics that much from S3.
For a url like {{http://host:port/volume/bucket/key}}, apart from the volume
prefix, the semantics are really similar. I believe, having a notion of 'admin
created volumes' allows us to have buckets which are very similar to S3, as it
provides clear domains of admin control vs user control. Volume can be viewed
as accounts, which are kind of similar to accounts in S3 or Azure.
It will be a bigger deviation if we insist that only admin can create
buckets. It is useful to organize data in buckets using prefix, but having that
as the only mechanism for organizing data seems too restrictive.
For similarity to S3, we will try to have similar headers and auth
semantics as well, which are also very important for portability.
> 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: Ozone-architecture-v1.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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