Jean-Marc Spaggiari created HDFS-13209:
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Summary: 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
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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