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https://issues.apache.org/jira/browse/HADOOP-5010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12663594#action_12663594
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Kan Zhang commented on HADOOP-5010:
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> Can you say more about the requirement?

We have an internal interface by which clients can query a metadata server to 
get file locations and then use HTTPS clients like curl to retrieve the actual 
files from datastore servers. We want hdfsproxy to act as datastore servers. 
Directory listings are not required. Neither is support for browsers. Just 
using HTTP GET request to fetch a file. Could be a thin wrapper around existing 
streamFile servlet. Some convention is needed, like how to specify the cluster 
that the file is stored on since we want one hdfsproxy to proxy for multiple 
HDFS clusters.

> Replace HFTP/HSFTP with plain HTTP/HTTPS
> ----------------------------------------
>
>                 Key: HADOOP-5010
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5010
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: contrib/hdfsproxy
>    Affects Versions: 0.18.0
>            Reporter: Marco Nicosia
>
> In HADOOP-1563, [~cutting] wrote:
> bq. The URI for this should be something like hftp://host:port/a/b/c, since, 
> while HTTP will be used as the transport, this will not be a FileSystem for 
> arbitrary HTTP urls.
> Recently, we've been talking about implementing an HDFS proxy (HADOOP-4575) 
> which would be a secure way to make HFTP/HSFTP available. In so doing, we may 
> even remove HFTP/HSFTP from being offered on the HDFS itself (that's another 
> discussion).
> In the case of the HDFS proxy, does it make sense to do away with the 
> artificial HFTP/HSFTP protocols, and instead simply offer standard HTTP and 
> HTTPS? That would allow non-HDFS-specific clients, as well as using various 
> standard HTTP infrastructure, such as load balancers, etc.
> NB, to the best of my knowledge, HFTP is only documented on the 
> [distcp|http://hadoop.apache.org/core/docs/current/distcp.html] page, and 
> HSFTP is not documented at all?

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