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https://issues.apache.org/jira/browse/HADOOP-9438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13663199#comment-13663199
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Robert Joseph Evans commented on HADOOP-9438:
---------------------------------------------
I think the patch looks fine and I am +1 for this, but I really would like
someone who is much more on the HDFS side to also take a look before checking
it in. Especially because this is technically an incompatible change.
> LocalFileContext does not throw an exception on mkdir for already existing
> directory
> ------------------------------------------------------------------------------------
>
> Key: HADOOP-9438
> URL: https://issues.apache.org/jira/browse/HADOOP-9438
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.0.3-alpha
> Reporter: Robert Joseph Evans
> Priority: Critical
> Attachments: HADOOP-9438.20130501.1.patch,
> HADOOP-9438.20130521.1.patch, HADOOP-9438.patch, HADOOP-9438.patch
>
>
> according to
> http://hadoop.apache.org/docs/current/api/org/apache/hadoop/fs/FileContext.html#mkdir%28org.apache.hadoop.fs.Path,%20org.apache.hadoop.fs.permission.FsPermission,%20boolean%29
> should throw a FileAlreadyExistsException if the directory already exists.
> I tested this and
> {code}
> FileContext lfc = FileContext.getLocalFSFileContext(new Configuration());
> Path p = new Path("/tmp/bobby.12345");
> FsPermission cachePerms = new FsPermission((short) 0755);
> lfc.mkdir(p, cachePerms, false);
> lfc.mkdir(p, cachePerms, false);
> {code}
> never throws an exception.
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