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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7371) Loading predefined EC schemas from configuration
Date Wed, 04 Feb 2015 07:09:34 GMT

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

Kai Zheng updated HDFS-7371:
----------------------------
    Description: 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 respectived thereafter.  (was: 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 to enforce EC.)

> Loading predefined EC schemas from configuration
> ------------------------------------------------
>
>                 Key: HDFS-7371
>                 URL: https://issues.apache.org/jira/browse/HDFS-7371
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>
> 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 respectived thereafter.



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