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https://issues.apache.org/jira/browse/HDFS-13209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16767927#comment-16767927
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Surendra Singh Lilhore commented on HDFS-13209:
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Thanks [~ayushtkn] for patch.
Some comment for test code.
1. Change variable name to outputStream._
{code:java}
+ FSDataOutputStream inputStream =
+ fs.createFile(file1).storagePolicyName("COLD").build();
+ inputStream.write(1);
+ inputStream.close();{code}
2. Start MiniDfscluster with three storage DISK, ARCHIVE, SSD.
3. Add case for default storage.
> DistributedFileSystem.create should allow an option to provide StoragePolicy
> ----------------------------------------------------------------------------
>
> Key: HDFS-13209
> URL: https://issues.apache.org/jira/browse/HDFS-13209
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: hdfs
> Affects Versions: 3.0.0
> Reporter: Jean-Marc Spaggiari
> Assignee: Ayush Saxena
> Priority: Major
> Attachments: HDFS-13209-01.patch, HDFS-13209-02.patch,
> HDFS-13209-03.patch, HDFS-13209-04.patch, HDFS-13209-05.patch
>
>
> DistributedFileSystem.create allows to get a FSDataOutputStream. The stored
> file and related blocks will used the directory based StoragePolicy.
>
> However, sometime, we might need to keep all files in the same directory
> (consistency constraint) but might want some of them on SSD (small, in my
> case) until they are processed and merger/removed. Then they will go on the
> default policy.
>
> When creating a file, it will be useful to have an option to specify a
> different StoragePolicy...
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