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From "luhuichun (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11975) Provide a system-default EC policy
Date Thu, 06 Jul 2017 16:27:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

luhuichun updated HDFS-11975:
-----------------------------
    Attachment: HDFS-11975-007.patch

update with some small changes 

> Provide a system-default EC policy
> ----------------------------------
>
>                 Key: HDFS-11975
>                 URL: https://issues.apache.org/jira/browse/HDFS-11975
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: erasure-coding
>    Affects Versions: 3.0.0-alpha3
>            Reporter: Lei (Eddy) Xu
>            Assignee: luhuichun
>         Attachments: HDFS-11975-001.patch, HDFS-11975-002.patch, HDFS-11975-003.patch,
HDFS-11975-004.patch, HDFS-11975-005.patch, HDFS-11975-006.patch, HDFS-11975-007.patch
>
>
> From the usability point of view, it'd be nice to be able to specify a system-wide EC
policy, i.e., in {{hdfs-site.xml}}. For most of users / admin / downstream projects, it is
not necessary to know the tradeoffs of the EC policy, considering that it requires the knowledge
of EC, the actual physical topology of the clusters, and many other factors (i.e., network,
cluster size and etc).
>  



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