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https://issues.apache.org/jira/browse/HDFS-11975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16065282#comment-16065282
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SammiChen commented on HDFS-11975:
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Currently, all build-in EC policies are disabled by default. After we introduce
the system-default EC policy, for easy configuration, I suggest this
system-default EC policy been enabled by default. [~drankye], [~eddyxu], I'd
like to know your opinions.
> 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
>
>
> 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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