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https://issues.apache.org/jira/browse/HADOOP-17088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17143908#comment-17143908
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Jonathan Turner Eagles commented on HADOOP-17088:
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One important security feature is to disallow xml resources from outside of the
classpath. Does this enforce this constraint?
> 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 via calling `Configuration.addResource`
> with `Path(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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