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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4575) An independent HTTPS proxy for HDFS
Date Thu, 06 Nov 2008 11:35:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12645468#action_12645468
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Chris Douglas commented on HADOOP-4575:
---------------------------------------

The core changes look fine. The contrib changes are OK for now, but in the future:
* If there were a limit on even the number of elements in the cache, checking that condition
is less expensive than iterating over all the users in the cache for each insertion.
* Where there is not a compatibility requirement for previous versions, the code duplication
in ProxyHttpServer should be reduced. In particular, 0.20 should have a version with the "right"
abstractions.
* No information would be an improvement over a reserved HTTP error code. Something generic,
like 400, perhaps?

Compiling against trunk, I got no errors when applying only the patch. Are the jars in lib.tgz
supposed to go into src/contrib/hdfsproxy/lib ?

> An independent HTTPS proxy for HDFS
> -----------------------------------
>
>                 Key: HADOOP-4575
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4575
>             Project: Hadoop Core
>          Issue Type: New Feature
>            Reporter: Kan Zhang
>            Assignee: Kan Zhang
>             Fix For: 0.20.0
>
>         Attachments: 4575-1-contrib.patch, 4575-1-core.patch, 4575-1.patch, 4575-2-contrib.patch,
4575-2-core.patch, 4575-2.patch, lib.tgz
>
>
> Currently, an HDFS cluster itself exposes an HTTP/HTTPS interface for reading files (i.e.,
HFTP/HSFTP). However, there is a need for an HTTPS proxy server running independently from
the cluster and serving data to users who otherwise can't access the cluster directly. This
proxy will authenticate its users via SSL certificates and implements the HSFTP interface
for reading files.  

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