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https://issues.apache.org/jira/browse/HADOOP-12924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15196858#comment-15196858
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Zhe Zhang commented on HADOOP-12924:
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Thanks Rui. Patch itself LGTM.
However I realized some issues in the current code. Pinging [~drankye] for
discussion.
Kai mentioned that new RS Java coder and legacy RS coder from HDFS-RAID are not
interoperable. However, they map to the same EC policy at inode level. E.g. if
a client writes a file using HDFS-RAID coder, we will record EC policy RS-6-3.
Then if another client tries to decode the file with new coder it will fail.
These 2 clients could have different {{IO_ERASURECODE_CODEC_RS_RAWCODER_KEY}}
configured. IIUC, they should be treated as 2 different policies rather than 2
different implementations?
> 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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