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https://issues.apache.org/jira/browse/HDFS-9427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15188123#comment-15188123
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Xiaobing Zhou commented on HDFS-9427:
-------------------------------------
Thanks everyone for the feedback.
I posted V003 with the mapping:
{noformat}
Namenode ports
----------------
50070 --> 9803
50470 --> 9804
Secondary NN ports
---------------
50090 --> 9805
50091 --> 9806
backup NN ports
---------------
50100 --> 9807
50105 --> 9808
Datanode ports
---------------
50010 --> 9809
50020 --> 9810
50075 --> 9811
50475 --> 9812
{noformat}
9803-9874 is a wider range unassigned, any upcoming ports can be fit into this
range.
> 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 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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