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https://issues.apache.org/jira/browse/HDFS-13566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16501155#comment-16501155
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Konstantin Shvachko commented on HDFS-13566:
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Just a minor things:
# It would be better to keep {{additionalListener = null}} until
{{addAdditionalListener()}} is actually called.
# Configuration parameters should be similar to the service address. Like
{{dfs.namenode.additional-rpc-address}}, etc. There is also bind-host, see if
we need it here as well.
#* Can we use something more specific than "additional"?
# Also let's think if we want it to be a public config key? Remember you can
never remove it.
> Add configurable additional RPC listener to NameNode
> ----------------------------------------------------
>
> Key: HDFS-13566
> URL: https://issues.apache.org/jira/browse/HDFS-13566
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ipc
> Reporter: Chen Liang
> Assignee: Chen Liang
> Priority: Major
> Attachments: HDFS-13566.001.patch
>
>
> This Jira aims to add the capability to NameNode to run additional
> listener(s). Such that NameNode can be accessed from multiple ports.
> Fundamentally, this Jira tries to extend ipc.Server to allow configured with
> more listeners, binding to different ports, but sharing the same call queue
> and the handlers. Useful when different clients are only allowed to access
> certain different ports. Combined with HDFS-13547, this also allows different
> ports to have different SASL security levels.
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