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https://issues.apache.org/jira/browse/MAPREDUCE-5558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13785540#comment-13785540
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Omkar Vinit Joshi commented on MAPREDUCE-5558:
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To give some idea.. the situation is like this
* JobConf-> "fs.defaultFS" points to hdfs.
* The files added are from different location. Few are from "file://" where as
few are from "hdfs://".
Therefore in path parsing anywhere if we loose scheme/authority then we take
the one from conf.
> Scheme for local file is lost when submitting mapreduce job using mapreduce
> API
> -------------------------------------------------------------------------------
>
> Key: MAPREDUCE-5558
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5558
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 2.1.0-beta, 2.1.1-beta, 2.1.2-beta
> Reporter: Ted Yu
> Assignee: Ted Yu
> Priority: Critical
> Attachments: mapreduce-5558.patch
>
>
> HBase snapshot export adds dependent jars (local files) through "tmpjars"
> config entry.
> When debugging HBASE-9687, we found that scheme for local file (file:/) is
> lost by DistributedCache.addFileToClassPath() call in JobSubmitter.
> The root cause of this problem is that we are somehow losing "file:/" from
> the uri. In the earlier code we were creating new Path object (new Path
> (newPath.toUri().getPath()) ) where as part of newPath.toUri().getPath() call
> we are losing the authority and scheme which are passed in.
> Thanks to Omkar who helped debug this issue
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