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From "SammiChen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
Date Fri, 15 Sep 2017 02:09:01 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

SammiChen updated HDFS-7859:
----------------------------
    Release Note: Persist all built-in erasure coding policies and user defined erasure coding
policies into NameNode fsImage and editlog reliably, so that all erasure coding policies remain
consistent after NameNode restart.

> Erasure Coding: Persist erasure coding policies in NameNode
> -----------------------------------------------------------
>
>                 Key: HDFS-7859
>                 URL: https://issues.apache.org/jira/browse/HDFS-7859
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>            Assignee: SammiChen
>              Labels: hdfs-ec-3.0-must-do
>             Fix For: 3.0.0-beta1
>
>         Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch, HDFS-7859.005.patch,
HDFS-7859.006.patch, HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, HDFS-7859.010.patch,
HDFS-7859.011.patch, HDFS-7859.012.patch, HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch,
HDFS-7859.016.patch, HDFS-7859.017.patch, HDFS-7859.018.patch, HDFS-7859.019.patch, HDFS-7859-HDFS-7285.002.patch,
HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we persist EC schemas
in NameNode centrally and reliably, so that EC zones can reference them by name efficiently.



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