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From "Dmytro Molkov (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1109) HFTP and URL Encoding
Date Fri, 23 Apr 2010 23:52:49 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12860424#action_12860424
] 

Dmytro Molkov commented on HDFS-1109:
-------------------------------------

This will also be server side only change. There are two servlets that get affected by it
the FileDataServlet and StreamFile, since you cannot run cluster with namenode and datanode
not synced on build version there is no breaking compatibility.

> HFTP and URL Encoding
> ---------------------
>
>                 Key: HDFS-1109
>                 URL: https://issues.apache.org/jira/browse/HDFS-1109
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 0.20.1, 0.20.2, 0.20.3, 0.21.0, 0.22.0
>            Reporter: Dmytro Molkov
>            Assignee: Dmytro Molkov
>
> We just saw this error happen in our cluster. If there is a file that has a "+" sign
in the name it is not readable through HFTP protocol.
> The problem is when we are reading a file with HFTP we are passing a name of the file
as a parameter in request and + gets undecoded into space on the server side. So the datanode
receiving the streamFile request tries to access a file with space instead of + in the name
and doesn't find that file.
> The proposed solution is to pass the filename as a part of URL as with all the other
HFTP commands, since this is the only place where it is not being treated this way. Are there
any objections to this?

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