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From "Chao Sun (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-13749) Use getServiceStatus to discover observer namenodes
Date Thu, 30 Aug 2018 17:51:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-13749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Chao Sun updated HDFS-13749:
    Summary: Use getServiceStatus to discover observer namenodes  (was: Implement a new client
protocol method to get NameNode state)

> Use getServiceStatus to discover observer namenodes
> ---------------------------------------------------
>                 Key: HDFS-13749
>                 URL: https://issues.apache.org/jira/browse/HDFS-13749
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Chao Sun
>            Assignee: Chao Sun
>            Priority: Major
>         Attachments: HDFS-13749-HDFS-12943.000.patch
> Currently {{HAServiceProtocol#getServiceStatus}} requires super user privilege. Therefore,
as a temporary solution, in HDFS-12976 we discover NameNode state by calling {{reportBadBlocks}}.
Here, we'll properly implement this by adding a new method in client protocol to get the NameNode

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