[jira] [Updated] (HADOOP-12118) Validate xml configuration files with XML Schema

["Gabor Liptak (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-12118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gabor Liptak updated HADOOP-12118:
----------------------------------
    Attachment: HADOOP-7947.branch-2.1.patch

> Validate xml configuration files with XML Schema
> ------------------------------------------------
>
>                 Key: HADOOP-12118
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12118
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Christopher Tubbs
>         Attachments: HADOOP-7947.branch-2.1.patch
>
>
> I spent an embarrassingly long time today trying to figure out why the following wouldn't work.
> {code}
> <property>
>   <key>fs.defaultFS</key>
>   <value>hdfs://localhost:9000</value>
> </property>
> {code}
> I just kept getting an error about no authority for {{fs.defaultFS}}, with a value of {{file:///}}, which made no sense... because I knew it was there.
> The problem was that the {{core-site.xml}} was parsed entirely without any validation. This seems incorrect. The very least that could be done is a simple XML Schema validation against an XSD, before parsing. That way, users will get immediate failures on common typos and other problems in the xml configuration files.



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