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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8392) DataNode support for multiple datasets
Date Fri, 22 May 2015 21:14:18 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Arpit Agarwal updated HDFS-8392:
    Attachment: HDFS-8392-HDFS-7240.03.patch

> 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
>         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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