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https://issues.apache.org/jira/browse/HDFS-2178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13131920#comment-13131920
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Alejandro Abdelnur commented on HDFS-2178:
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@Cos, yes I considered webdav before starting with Hoop, the main issues I've
found were that:
* webdav introduces several HTTP extensions such as additional verbs (methods)
and headers. General purpose http libraries sometimes fail to support such
extensions. And the same goes for some HTTP proxy implementations.
* webdav requires functionality that would be difficult to implement in an
hdfs-proxy, like COPY.
* webdav usage with HTTP tools/libs is quite complicated, you need a webdav
client.
Said this, I'm not dismissing a webdav bridge, it was just not matching the
goal of hdfs-proxy hoop.
> 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: 0.23.0
>
> Attachments: 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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