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https://issues.apache.org/jira/browse/HDFS-12826?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16759608#comment-16759608
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Ayush Saxena commented on HDFS-12826:
-------------------------------------
Thanx everyone for the discussion.
{quote}Would it be a bit more precise to take the other way: changing ipc to
rpc instead?
{quote}
Do you mean to say , we must change the implementation logic to take rpc
instead of ipc. If that is so I guess that it will bring out incompatibility
too and moreover it seems to be wrong only at the document side , In the
dfsadmin help it is ipc port only.
{code:java}
"\t[-printTopology]\n" +
"\t[-refreshNamenodes datanode_host:ipc_port]\n" +
"\t[-getVolumeReport datanode_host:ipc_port]\n" +
{code}
I guess changing in the doc should be well enough.
> Document Saying the RPC port, But it's required IPC port in Balancer Document.
> ------------------------------------------------------------------------------
>
> Key: HDFS-12826
> URL: https://issues.apache.org/jira/browse/HDFS-12826
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: balancer & mover, documentation
> Affects Versions: 3.0.0-beta1
> Reporter: Harshakiran Reddy
> Assignee: usharani
> Priority: Minor
> Attachments: HDFS-12826.patch
>
>
> In {{Adding a new Namenode to an existing HDFS cluster}} , refreshNamenodes
> command required IPC port but in Documentation it's saying the RPC port.
> http://hadoop.apache.org/docs/r3.0.0-beta1/hadoop-project-dist/hadoop-hdfs/Federation.html#Balancer
> {noformat}
> bin>:~/hdfsdata/HA/install/hadoop/datanode/bin> ./hdfs dfsadmin
> -refreshNamenodes host-name:65110
> refreshNamenodes: Unknown protocol:
> org.apache.hadoop.hdfs.protocol.ClientDatanodeProtocol
> bin.:~/hdfsdata/HA/install/hadoop/datanode/bin> ./hdfs dfsadmin
> -refreshNamenodes
> Usage: hdfs dfsadmin [-refreshNamenodes datanode-host:ipc_port]
> bin>:~/hdfsdata/HA/install/hadoop/datanode/bin> ./hdfs dfsadmin
> -refreshNamenodes host-name:50077
> bin>:~/hdfsdata/HA/install/hadoop/datanode/bin>
> {noformat}
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