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https://issues.apache.org/jira/browse/HADOOP-12924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15209989#comment-15209989
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Kai Zheng commented on HADOOP-12924:
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bq. I think the bottomline is that the file metadata (stored in the header)
should present HDFS-RAID and the new Java RS coder differently.
Yeah, agree.
bq. The concept of Reed-Solomon / RS is actually very broad. Strictly speaking
XOR is also a special case of RS.
I appreciate this understanding. It's true. Going this way would avoid awkward
situations that missed data are not recoverable due to the change of underlying
concrete coders in the umbrella of the same so-called Reed-Solomon.
I have had an off-line discussion with [~lirui] about the required changes to
fill this gap raised here. Hopefully we can move on!
> Add default coder key for creating raw coders
> ---------------------------------------------
>
> Key: HADOOP-12924
> URL: https://issues.apache.org/jira/browse/HADOOP-12924
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Rui Li
> Assignee: Rui Li
> Priority: Minor
> Attachments: HADOOP-12924.1.patch
>
>
> As suggested
> [here|https://issues.apache.org/jira/browse/HADOOP-12826?focusedCommentId=15194402&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15194402].
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