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https://issues.apache.org/jira/browse/HDFS-9427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15212133#comment-15212133
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Xiao Chen commented on HDFS-9427:
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Thanks [~xiaobingo] for working on this.
Have we considered about moving NN's RPC port to the same range? Now NN
HTTP/HTTPS are on 9870/9871, while RPC on 8020. DN has HTTP/HTTPS on 9864/9865
while IPC on 9867. I think this jira is a good chance to bring the NN RPC to
the same range. Please let me know your thoughts.
Nit: I see one reference of 50070 in CommandsManual.md in an example, could you
please update that?
> HDFS should not default to ephemeral ports
> ------------------------------------------
>
> Key: HDFS-9427
> URL: https://issues.apache.org/jira/browse/HDFS-9427
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode, hdfs-client, namenode
> Affects Versions: 3.0.0
> Reporter: Arpit Agarwal
> Assignee: Xiaobing Zhou
> Priority: Critical
> Labels: Incompatible
> Attachments: HDFS-9427.000.patch, HDFS-9427.001.patch,
> HDFS-9427.002.patch, HDFS-9427.003.patch, HDFS-9427.004.patch
>
>
> HDFS defaults to ephemeral ports for the some HTTP/RPC endpoints. This can
> cause bind exceptions on service startup if the port is in use.
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