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https://issues.apache.org/jira/browse/HDFS-873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konstantin Shvachko updated HDFS-873:
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Attachment: dataDirURI.patch
With this patch data-node directories are specified as URIs.
- It is backward compatible, that is if config specifies a path data-node will
print a warning but will keep working with the directory.
- We support only "file:" URIs. If another scheme is specified the directory
will be ignored.
- The patch includes a test to test this behavior.
- Changed hdfs-default.xml to set an example.
- MiniDFSCluster is changed to set directories as URIs in order to avoid
warnings.
- TestStorageDirectories was failing on windows because the drive letter "c:"
in directory paths was capitalized in one case and not in an another, so the
string comparison of the paths was failing. Fixed it.
> DataNode directories as URIs
> ----------------------------
>
> Key: HDFS-873
> URL: https://issues.apache.org/jira/browse/HDFS-873
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: data-node
> Affects Versions: 0.21.0
> Reporter: Konstantin Shvachko
> Assignee: Konstantin Shvachko
> Attachments: dataDirURI.patch
>
>
> Data-node directories {{dfs.datanode.data.dir}} should be specified as URIs
> in configurations files making it consistent with how name-node directories
> are set up since HDFS-396.
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