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https://issues.apache.org/jira/browse/HDFS-8074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14484952#comment-14484952
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Vinayakumar B commented on HDFS-8074:
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I also feel that, system default schema should be one of the codec present in
the xml file, and should never be changed after installation of cluster, this
will have option to user to specify which could be default at first. Or make it
hardcoded inside code itself, which doesnt depend on configured codecs. And
this should be present always.
On the other note, why cant make schema parameter mandatory for ec zone at the
time of creation.? instead of having system default schema
> Define a system-wide default EC schema
> --------------------------------------
>
> Key: HDFS-8074
> URL: https://issues.apache.org/jira/browse/HDFS-8074
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Kai Zheng
> Assignee: Kai Zheng
> Attachments: HDFS-8074-v1.patch, HDFS-8074-v2.patch,
> HDFS-8074-v3.patch
>
>
> It's good to have a system default EC schema first with fixed values before
> we support more schemas. This makes sense to resolve some dependencies before
> HDFS-7866 can be done in whole. The default system schema is also needed
> anyhow essentially when admin just wants to use it.
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