Lei (Eddy) Xu updated HDFS-7877:
    Assignee: Ming Ma

> Support maintenance state for datanodes
> ---------------------------------------
>                 Key: HDFS-7877
>                 URL: https://issues.apache.org/jira/browse/HDFS-7877
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: datanode, namenode
>            Reporter: Ming Ma
>            Assignee: Ming Ma
>         Attachments: HDFS-7877-2.patch, HDFS-7877.patch, 
> Supportmaintenancestatefordatanodes-2.pdf, 
> Supportmaintenancestatefordatanodes.pdf
> This requirement came up during the design for HDFS-7541. Given this feature 
> is mostly independent of upgrade domain feature, it is better to track it 
> under a separate jira. The design and draft patch will be available soon.

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