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From Gergely Novák (JIRA) <j...@apache.org>
Subject [jira] [Commented] (HDFS-10391) Always enable NameNode service RPC port
Date Fri, 30 Jun 2017 11:49:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16069964#comment-16069964

Gergely Novák commented on HDFS-10391:

Thank you [~xyao] for your review!

Based on your suggestions in the latest patch (#008) I
 - modified the description of dfs.namenode.servicerpc-address in hdfs-default.xml
 - removed the fallback to RPC bind host from NamenodeRpcServer
 - introduced globalTimeout in TestDataNodeMetricsLogger
As for your other comments:
 - "can we add some test with/wo service rpc/rpc binding host?" I think this is still properly
covered by TestNameNodeRespectsBindHostKeys.testServiceRpcBindHostKey(). Maybe add one additional
test case there where we don't set the dfs.namenode.servicerpc-address explicitly? 
 - I'm not confident about the other two comments regarding the NamenodeRpcServer. [~arpitagarwal]
could you please address them?

> Always enable NameNode service RPC port
> ---------------------------------------
>                 Key: HDFS-10391
>                 URL: https://issues.apache.org/jira/browse/HDFS-10391
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode, namenode
>            Reporter: Arpit Agarwal
>            Assignee: Gergely Novák
>              Labels: Incompatible
>         Attachments: HDFS-10391.001.patch, HDFS-10391.002.patch, HDFS-10391.003.patch,
HDFS-10391.004.patch, HDFS-10391.005.patch, HDFS-10391.006.patch, HDFS-10391.007.patch, HDFS-10391.008.patch,
> The NameNode should always be setup with a service RPC port so that it does not have
to be explicitly enabled by an administrator.

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