[ 
https://issues.apache.org/jira/browse/HADOOP-11664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14937150#comment-14937150
 ] 

Hudson commented on HADOOP-11664:
---------------------------------

FAILURE: Integrated in Hadoop-Hdfs-trunk #2379 (See 
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/2379/])
HADOOP-11664. Loading predefined EC schemas from configuration. (zhezhang: rev 
d9af36b9bdd1574873f38286a54611d9c8e1a1c7)
* 
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/erasurecode/TestSchemaLoader.java
* 
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeys.java
* hadoop-common-project/hadoop-common/src/main/conf/ecschema-def.xml
* 
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/erasurecode/SchemaLoader.java


> Loading predefined EC schemas from configuration
> ------------------------------------------------
>
>                 Key: HADOOP-11664
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11664
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>             Fix For: HDFS-7285
>
>         Attachments: HADOOP-11664-v2.patch, HADOOP-11664-v3.patch, 
> 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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