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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8062) Remove hard-coded values in favor of EC schema
Date Thu, 28 May 2015 16:11:23 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14563179#comment-14563179
] 

Kai Zheng commented on HDFS-8062:
---------------------------------

Sorry Kai I was not able to read the patch fully but will do it recently. I thought the chunkSize/cellSize
related change is a major concern. Would you look at the change in HDFS-8375 and see how much
related work to be done here to follow on? If non-trivial, maybe do it separately. A rebase
for the patch would be clear to that. Thanks.

> Remove hard-coded values in favor of EC schema
> ----------------------------------------------
>
>                 Key: HDFS-8062
>                 URL: https://issues.apache.org/jira/browse/HDFS-8062
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>            Assignee: Kai Sasaki
>         Attachments: HDFS-8062-HDFS-7285-07.patch, HDFS-8062-HDFS-7285-08.patch, HDFS-8062.1.patch,
HDFS-8062.2.patch, HDFS-8062.3.patch, HDFS-8062.4.patch, HDFS-8062.5.patch, HDFS-8062.6.patch
>
>
> Related issues about EC schema in NameNode side:
> HDFS-7859 is to change fsimage and editlog in NameNode to persist EC schemas;
> HDFS-7866 is to manage EC schemas in NameNode, loading, syncing between persisted ones
in image and predefined ones in XML.
> This is to revisit all the places in NameNode that uses hard-coded values in favor of
{{ECSchema}}.



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