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https://issues.apache.org/jira/browse/HDFS-12615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16391593#comment-16391593
]
Íñigo Goiri commented on HDFS-12615:
------------------------------------
{quote}
BTW, I have a question, should us config the remote ns or data center's router
to client?
{quote}
For the client, it's enough to setup the Router addresses as a
{{ConfiguredFailoverProxyProvider}}, no need to setup the remote nameservices.
The documentation
[here|http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HDFSRouterFederation.html]
shows the exmaple to access both directly and through the Router but you only
need:
{code}
<configuration>
<property>
<name>dfs.nameservices</name>
<value>ns-fed</value>
</property>
<property>
<name>dfs.namenodes.ns-fed</name>
<value>r1,r2</value>
</property>
<property>
<name>dfs.namenode.rpc-address.ns-fed.r1</name>
<value>router1:rpc-port</value>
</property>
<property>
<name>dfs.namenode.rpc-address.ns-fed.r2</name>
<value>router2:rpc-port</value>
</property>
<property>
<name>dfs.client.failover.proxy.provider.ns-fed</name>
<value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>
</property>
<property>
<name>dfs.client.failover.random.order</name>
<value>true</value>
</property>
</configuration>
{code}
> Router-based HDFS federation phase 2
> ------------------------------------
>
> Key: HDFS-12615
> URL: https://issues.apache.org/jira/browse/HDFS-12615
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Íñigo Goiri
> Assignee: Íñigo Goiri
> Priority: Major
> Labels: RBF
>
> This umbrella JIRA tracks set of improvements over the Router-based HDFS
> federation (HDFS-10467).
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