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From "SammiChen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12686) Erasure coding system policy state is not correctly saved and loaded during real cluster restart
Date Wed, 25 Oct 2017 01:45:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16217973#comment-16217973
] 

SammiChen commented on HDFS-12686:
----------------------------------

Hi [~jojochuang], this JIRA is closely related with HDFS-12682. I was plan to work on it after
HDFS-12682 is committed.  Thanks [~xiaochen] for taking care it together in HDFS-12682. 

> Erasure coding system policy state is not correctly saved and loaded during real cluster
restart
> ------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-12686
>                 URL: https://issues.apache.org/jira/browse/HDFS-12686
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 3.0.0-beta1
>            Reporter: SammiChen
>            Assignee: SammiChen
>            Priority: Blocker
>              Labels: hdfs-ec-3.0-must-do
>
> Inspired by HDFS-12682,  I found the system erasure coding policy state will  not  be
correctly saved and loaded in a real cluster.  Through there are such kind of unit tests and
all are passed with MiniCluster. It's because the MiniCluster keeps the same static system
erasure coding policy object after the NN restart operation. 



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