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https://issues.apache.org/jira/browse/HADOOP-12924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15210167#comment-15210167
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Rui Li commented on HADOOP-12924:
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Based on my offline discussion with Kai, we have the following proposal:
# We can consider HDFS-RAID and new Java coder as different codec, so that
they'll map to different EC policies. Within each codec, we can have different
implementations of raw coders which are interoperable. For HDFS-RAID codec, the
legacy coder is the only implementation. For "other RS" codec (we can figure
out a better name of course), we have the new Java coder and will probably have
the ISA-L coder soon.
# Each codec will have a dedicated raw coder configuration key, so that user
can conveniently switch between different implementations. And switching raw
coder doesn't require porting/re-encoding data, as long as the raw coders
belong to the same codec.
[~drankye] please add if I missed anything.
[~zhz] what's your opinion about this?
> 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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