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https://issues.apache.org/jira/browse/HDFS-7240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15303085#comment-15303085
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Colin Patrick McCabe commented on HDFS-7240:
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bq. Correct me if I am wrong – before Andrew Wang's contribution, symlink was
somehow working (based on Eli Collins's work). After Andrew's work, we had no
choice but disable the symlink feature. It this sense, symlink became even
worse. Anyway, Andrew/Eli, any plan to fix symlink?
Symlinks were broken before Andrew started working on them. They had serious
security, performance, and usability issues. If you are interested in learning
more about the issues and helping to fix them, take a look at HADOOP-10019.
They were disabled to avoid exposing people to serious security risks. In the
meantime, I will note that you were one of the reviewers on the JIRA that
initially introduced symlinks, HDFS-245, before Andrew or I had even started
working on Hadoop.
> 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, 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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