[jira] [Created] (HDFS-8584) Support using ramfs partitions on Linux

[Arpit Agarwal (JIRA)]

Arpit Agarwal created HDFS-8584:
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             Summary: Support using ramfs partitions on Linux
                 Key: HDFS-8584
                 URL: https://issues.apache.org/jira/browse/HDFS-8584
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: datanode
    Affects Versions: 2.7.0
            Reporter: Arpit Agarwal
            Assignee: Arpit Agarwal


Now that the bulk of work for HDFS-6919 is complete the memory limit 
enforcement uses the {{dfs.datanode.max.locked.memory}} setting and not the RAM 
disk free space availability.

We can now use ramfs partitions. This will require fixing the free space 
computation and reservation logic for transient volumes.



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