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https://issues.apache.org/jira/browse/HDFS-2178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13163832#comment-13163832
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Eli Collins commented on HDFS-2178:
-----------------------------------
Per offline conversation with Tucu:
# It makes sense to keep Hoop proxying directly to Hadoop file systems because
this allows us to support federation and a proxy (ie proxy to viewfs vs viewfs
mapping to a proxy) and because http redirecting to webhdfs won't work for
clients that are firewalled off from datanodes.
# Ideally the code could live in common (or a top-level project in a flat
hierarchy if we move to that) but this would require multiple mvn projects as
we'd need one in common and one in hdfs to generate the war with the injected
hdfs jar and the build pain isn't worth it.
Think the current approach makes sense.
> Contributing Hoop to HDFS, replacement for HDFS proxy with read/write
> capabilities
> ----------------------------------------------------------------------------------
>
> Key: HDFS-2178
> URL: https://issues.apache.org/jira/browse/HDFS-2178
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 0.23.0
> Reporter: Alejandro Abdelnur
> Assignee: Alejandro Abdelnur
> Fix For: 0.24.0, 0.23.1
>
> Attachments: HDFS-2178.patch, HDFS-2178.patch, HDFS-2178.patch,
> HDFS-2178.patch, HDFS-2178.patch, HDFS-2178.patch, HDFS-2178.patch,
> HDFSoverHTTP-API.html, HdfsHttpAPI.pdf
>
>
> We'd like to contribute Hoop to Hadoop HDFS as a replacement (an improvement)
> for HDFS Proxy.
> Hoop provides access to all Hadoop Distributed File System (HDFS) operations
> (read and write) over HTTP/S.
> The Hoop server component is a REST HTTP gateway to HDFS supporting all file
> system operations. It can be accessed using standard HTTP tools (i.e. curl
> and wget), HTTP libraries from different programing languages (i.e. Perl,
> Java Script) as well as using the Hoop client. The Hoop server component is a
> standard Java web-application and it has been implemented using Jersey
> (JAX-RS).
> The Hoop client component is an implementation of Hadoop FileSystem client
> that allows using the familiar Hadoop filesystem API to access HDFS data
> through a Hoop server.
> Repo: https://github.com/cloudera/hoop
> Docs: http://cloudera.github.com/hoop
> Blog: http://www.cloudera.com/blog/2011/07/hoop-hadoop-hdfs-over-http/
> Hoop is a Maven based project that depends on Hadoop HDFS and Alfredo (for
> Kerberos HTTP SPNEGO authentication).
> To make the integration easy, HDFS Mavenization (HDFS-2096) would have to be
> done first, as well as the Alfredo contribution (HADOOP-7119).
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