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https://issues.apache.org/jira/browse/HADOOP-15558?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chaitanya Mukka updated HADOOP-15558:
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Attachment: HADOOP-15558.002.patch
Status: Patch Available (was: Open)
> Implementation of Clay Codes plugin (Coupled Layer MSR codes)
> --------------------------------------------------------------
>
> Key: HADOOP-15558
> URL: https://issues.apache.org/jira/browse/HADOOP-15558
> Project: Hadoop Common
> Issue Type: New Feature
> Reporter: Chaitanya Mukka
> Assignee: Chaitanya Mukka
> Priority: Major
> Attachments: ClayCodeCodecDesign-20180630.pdf,
> HADOOP-15558.001.patch, HADOOP-15558.002.patch
>
>
> [Clay Codes|https://www.usenix.org/conference/fast18/presentation/vajha] are
> new erasure codes developed as a research project at Codes and Signal Design
> Lab, IISc Bangalore. A particular Clay code, with storage overhead 1.25x, has
> been shown to reduce repair network traffic, disk read and repair times by
> factors of 2.9, 3.4 and 3 respectively compared to the RS codes with the same
> parameters.
> This Jira aims to introduce Clay Codes to HDFS-EC as one of the pluggable
> erasure codec.
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