[jira] [Updated] (HDFS-7877) Support maintenance state for datanodes

["Ming Ma (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-7877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ming Ma updated HDFS-7877:
--------------------------
    Attachment: Supportmaintenancestatefordatanodes-2.pdf
                HDFS-7877-2.patch

Here is the updated design to add the support for configurable minimal maintenance replicator factor and the support of read operation on "live entering_maintenance" nodes. The patch has been updated accordingly with bug fixes and more unit tests. Appreciate any input others might have.

> Support maintenance state for datanodes
> ---------------------------------------
>
>                 Key: HDFS-7877
>                 URL: https://issues.apache.org/jira/browse/HDFS-7877
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>            Reporter: 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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)