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https://issues.apache.org/jira/browse/HDFS-14805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16919924#comment-16919924
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Virajith Jalaparti edited comment on HDFS-14805 at 8/31/19 12:51 AM:
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cc: [~ashvin], [~chris.douglas] [~elgoiri], [~subru], [~xkrogen], [~shv],
[~aiden_zhang], [~ekanth], [~csun] , [~anu], [~ehiggs] , [~thodemoor]
was (Author: virajith):
cc: [~ashvin] [~chris.douglas] [~elgoiri] [~subru] [~xkrogen] [~shv]
[~aiden_zhang] [~ekanth] [~csun] [~anu]
> Mounting external stores in HDFS on-the-fly
> -------------------------------------------
>
> Key: HDFS-14805
> URL: https://issues.apache.org/jira/browse/HDFS-14805
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Virajith Jalaparti
> Priority: Major
> Attachments: dynamic-mounts-in-hdfs.pdf
>
>
> Provided storage (HDFS-9806) allows HDFS to address data in external storage
> systems, including cloud stores. Data mounted in this manner, seamlessly,
> appears to be part of HDFS for applications/clients. The external data can
> also be cached by HDFS on local disks and SSDs, accelerating remote data
> reads (HDFS-13069).
> However, Provided storage was originally targeted at ephemeral HDFS
> deployments in the cloud (e.g., Azure HDInsight). Long running HDFS clusters
> are common in many other scenarios which can benefit from accessing data in
> remote stores. This JIRA targets such scenarios and aims to provide the
> ability to:
> (a) Dynamically mount external stores in a HDFS cluster while supporting high
> availability.
> (b) Mount multiple remote stores simultaneously.
> (c) Reduce deployment overheads and simplify usability of Provided storage.
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