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https://issues.apache.org/jira/browse/HDFS-5851?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sanjay Radia updated HDFS-5851:
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Attachment: SupportingMemoryStorageinHDFSPersistentandDiscardableMemory.pdf
Added comparison to Tachyon in the doc. The is also an implementation
difference that I don't cover (Tachyon I believe uses RamFs rather than a
memory that is mapped to a HDFS file -- but need to verify that).
> Support memory as a storage medium
> ----------------------------------
>
> Key: HDFS-5851
> URL: https://issues.apache.org/jira/browse/HDFS-5851
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode
> Affects Versions: 3.0.0
> Reporter: Arpit Agarwal
> Assignee: Arpit Agarwal
> Attachments:
> SupportingMemoryStorageinHDFSPersistentandDiscardableMemory.pdf,
> SupportingMemoryStorageinHDFSPersistentandDiscardableMemory.pdf
>
>
> Memory can be used as a storage medium for smaller/transient files for fast
> write throughput.
> More information/design will be added later.
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