Arpit Agarwal created HDFS-8392:
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Summary: DataNode refactoring to support multiple datasets
Key: HDFS-8392
URL: https://issues.apache.org/jira/browse/HDFS-8392
Project: Hadoop HDFS
Issue Type: Sub-task
Components: datanode
Reporter: Arpit Agarwal
Assignee: Arpit Agarwal
For HDFS-7240 we would like to share available DataNode storage across HDFS
blocks and Ozone objects.
The DataNode already supports sharing available storage across multiple block
pool IDs for the federation feature. However all federated block pools use the
same dataset implementation i.e. {{FsDatasetImpl}}.
We can extend the DataNode to support multiple dataset implementations so the
same storage space can be shared across one or more HDFS block pools and one or
more Ozone block pools.
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