[jira] [Reopened] (HDDS-3816) Erasure Coding

["Uma Maheswara Rao G (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDDS-3816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Uma Maheswara Rao G reopened HDDS-3816:
---------------------------------------

> Erasure Coding
> --------------
>
>                 Key: HDDS-3816
>                 URL: https://issues.apache.org/jira/browse/HDDS-3816
>             Project: Apache Ozone
>          Issue Type: New Feature
>          Components: OM, Ozone Client, Ozone Datanode, SCM
>            Reporter: Uma Maheswara Rao G
>            Assignee: Uma Maheswara Rao G
>            Priority: Major
>              Labels: EC
>             Fix For: EC-Branch
>
>         Attachments: Apache Ozone Erasure Coding-V2.pdf, EC-read-write-path.pdf, Erasure Coding in Apache Hadoop Ozone.pdf, Ozone EC Container groups and instances.pdf, Ozone EC v3.pdf
>
>
> We propose to implement Erasure Coding in Apache Ozone to provide efficient storage. With EC in place, Ozone can provide same or better tolerance by giving 50% or more  storage space savings. 
> In HDFS project, we already have native codecs(ISAL) and Java codecs implemented, we can leverage the same or similar codec design.
> However, the critical part of EC data layout design is in-progress, we will post the design doc soon.
> Also see HDDS-5351, which has a bunch of pre-requisites for the EC feature committed directly to the {{master}} branch.



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