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https://issues.apache.org/jira/browse/HADOOP-13186?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andras Bokor resolved HADOOP-13186.
-----------------------------------
Resolution: Cannot Reproduce
> GenericOptionParser -libjars option validity check not always working because
> of bad local FS equality check
> ------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-13186
> URL: https://issues.apache.org/jira/browse/HADOOP-13186
> Project: Hadoop Common
> Issue Type: Bug
> Components: util
> Affects Versions: 2.6.0, 2.7.1
> Environment: Occured on: CentOS 6.3 or Ubuntu 14.04, Oracle JDK
> 1.7.0_45 or 1.8.0_66
> Reporter: Arnaud Linz
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> _Class concerned :_
> {{org.apache.hadoop.util.GenericOptionParser}}
> _Method :_
> {{public static URL[] getLibJars(final Configuration conf)}}
> _Line :_
> {{if (tmp.getFileSystem(conf).equals(FileSystem.getLocal(conf)))}}
> In this method we check if the provided jar on the command line are on a
> local file system, else we emit a warning log and ignore it.
> I've got the case where the two file systems retrieved (the one from the
> {{Path.getFileSystem(conf)}} and the one returned by
> {{FileSystem.getLocal(conf)}}) where two local file systems but different
> objects, and the {{equals()}} method, not having been implemented, defaulted
> to the object pointer equality, leading to my jar files not being taken into
> account.
> I've quickly patched it to
> {{tmp.getFileSystem(conf).getUri().equals(FileSystem.getLocal(conf).getUri()}}
> to have my application work.
> I did not dig further into determining whether the objects should have been
> the same, or whether the {{equals()}} method should have been implemented,
> but it has to be done.
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