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https://issues.apache.org/jira/browse/HDFS-9040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14736179#comment-14736179
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Zhe Zhang commented on HDFS-9040:
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Thanks for initiating the work Walter!
While you are working on the patch, I have a couple of questions:
# The role of {{BlockGroupDataStreamer}} looks similar (or closely related) to
{{Coordinator}}. Should we make it part of {{Coordinator}}?
# I think a challenge is whether / how to reuse the existing
{{DFSOutputStream}} / {{DataStreamer}} code. It doesn't seem easy to avoid
refactoring them.
> Erasure coding: A BlockGroupDataStreamer to rule all internal blocks streamers
> ------------------------------------------------------------------------------
>
> Key: HDFS-9040
> URL: https://issues.apache.org/jira/browse/HDFS-9040
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Walter Su
> Assignee: Walter Su
>
> A {{BlockGroupDataStreamer}} to communicate with NN to allocate/update block,
> and {{StripedDataStreamer}} s only have to stream blocks to DNs.
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