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Kai Zheng commented on HDFS-7371:
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Thanks Zhe. Will look at the design and think about it.
> 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 respected thereafter.
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