Zhijie Shen created MAPREDUCE-6044:
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Summary: Fully qualified intermediate done directory will break
per-user dir creation on Windows
Key: MAPREDUCE-6044
URL: https://issues.apache.org/jira/browse/MAPREDUCE-6044
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: jobhistoryserver
Affects Versions: 3.0.0, 2.6.0
Environment: Windows
Reporter: Zhijie Shen
Assignee: Zhijie Shen
After MAPREDUCE-6032, the string of the intermediate done dir will be a fully
qualified path.
The following code in JobHistroyUtils tries to concat this path and user name
to create a per-user dir path, using File.separator as the seperator (on
Windows, it is "\").
{code}
public static String getHistoryIntermediateDoneDirForUser(Configuration conf)
throws IOException {
return getConfiguredHistoryIntermediateDoneDirPrefix(conf) + File.separator
+ UserGroupInformation.getCurrentUser().getShortUserName();
}
{code}
Therefore, an intermediate done dir for user will become
"hdfs://localhost:9201/mapred/history/done_intermediate\user". With the scheme
available in the path, Path class will not replace "\" with "/", and finally FS
cannot handle this path correctly: it will take "done_intermediateuser" as a
single directory name.
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