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https://issues.apache.org/jira/browse/HDFS-8392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arpit Agarwal reopened HDFS-8392:
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> DataNode support for 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
> Fix For: HDFS-7240
>
> Attachments: HDFS-8392-HDFS-7240.01.patch,
> HDFS-8392-HDFS-7240.02.patch, HDFS-8392-HDFS-7240.03.patch
>
>
> 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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