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From "Yi Liu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7371) Loading predefined EC schemas from configuration
Date Tue, 03 Mar 2015 00:48:30 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Yi Liu updated HDFS-7371:
    Issue Type: Task  (was: Sub-task)
        Parent:     (was: HDFS-7285)

> Loading predefined EC schemas from configuration
> ------------------------------------------------
>                 Key: HDFS-7371
>                 URL: https://issues.apache.org/jira/browse/HDFS-7371
>             Project: Hadoop HDFS
>          Issue Type: Task
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>         Attachments: HDFS-7371_v1.patch
> System administrator can configure multiple EC codecs in hdfs-site.xml file, and codec
instances or schemas in a new configuration file named ec-schema.xml in the conf folder. A
codec can be referenced by its instance or schema using the codec name, and a schema can be
utilized and specified by the schema name for a folder or EC ZONE to enforce EC. Once a schema
is used to define an EC ZONE, then its associated parameter values will be stored as xattributes
and respected thereafter.

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