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https://issues.apache.org/jira/browse/HDFS-8186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14549644#comment-14549644
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Walter Su commented on HDFS-8186:
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> ...Looks like we should add a TODO that webhdfs on striped files will be
> supported later?
It's done, not a TODO. Webhdfs already support write striped file (HDFS-8352).
{{chooseTarget4WebHDFS}} return a proxy DN. We only requires proxy DN closer to
client. Proxy DN is or is not one target DN. Proxy DN will create a DFSClient
to redirect data from client to target DNs. ( You can see the details from
HDFS-2316)
> Erasure coding: Make block placement policy for EC file configurable
> --------------------------------------------------------------------
>
> Key: HDFS-8186
> URL: https://issues.apache.org/jira/browse/HDFS-8186
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Walter Su
> Assignee: Walter Su
> Attachments: HDFS-8186-HDFS-7285.002.patch, HDFS-8186.001.patch
>
>
> This includes:
> 1. User can config block placement policy for EC file in xml configuration
> file.
> 2. EC policy works for EC file, replication policy works for non-EC file.
> They are coexistent.
> Not includes:
> 1. Details of block placement policy for EC. Discussion and implementation
> goes to HDFS-7613.
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