Christopher Tubbs created HADOOP-12118:
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Summary: 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
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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