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https://issues.apache.org/jira/browse/HADOOP-17088?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yushi Hayasaka updated HADOOP-17088:
------------------------------------
    Status: Patch Available  (was: Open)

PR: [https://github.com/apache/hadoop/pull/2097]

> Failed to load Xinclude files with relative path in case of loading conf via 
> URI
> --------------------------------------------------------------------------------
>
>                 Key: HADOOP-17088
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17088
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Yushi Hayasaka
>            Priority: Major
>
> When we create a configuration file, which load a external XML file with 
> relative path, and try to load it with calling 
> `Configuration.addResource(URI)`, we got an error, which failed to load a 
> external XML, after [https://issues.apache.org/jira/browse/HADOOP-14216] is 
> merged.
> {noformat}
> Exception in thread "main" java.lang.RuntimeException: java.io.IOException: 
> Fetch fail on include for 'mountTable.xml' with no fallback while loading 
> 'file:/opt/hadoop/etc/hadoop/core-site.xml'
>       at 
> org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:3021)
>       at 
> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2973)
>       at 
> org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2848)
>       at 
> org.apache.hadoop.conf.Configuration.iterator(Configuration.java:2896)
>       at com.company.test.Main.main(Main.java:29)
> Caused by: java.io.IOException: Fetch fail on include for 'mountTable.xml' 
> with no fallback while loading 'file:/opt/hadoop/etc/hadoop/core-site.xml'
>       at 
> org.apache.hadoop.conf.Configuration$Parser.handleEndElement(Configuration.java:3271)
>       at 
> org.apache.hadoop.conf.Configuration$Parser.parseNext(Configuration.java:3331)
>       at 
> org.apache.hadoop.conf.Configuration$Parser.parse(Configuration.java:3114)
>       at 
> org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:3007)
>       ... 4 more
> {noformat}
> The cause is that the URI is passed as string to java.io.File constructor and 
> File does not support the file URI, so my suggestion is trying to convert 
> from string to URI at first.



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