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CONFG

The document describes HDFS services and ports including the NameNode, DataNode, and Secondary NameNode. It also lists HDFS configuration properties in hdfs-site.xml such as dfs.namenode.servicerpc-address, dfs.namenode.http-address, dfs.replication, and dfs.blocksize.

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Nadeem Khan
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35 views2 pages

CONFG

The document describes HDFS services and ports including the NameNode, DataNode, and Secondary NameNode. It also lists HDFS configuration properties in hdfs-site.xml such as dfs.namenode.servicerpc-address, dfs.namenode.http-address, dfs.replication, and dfs.blocksize.

Uploaded by

Nadeem Khan
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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SERVICE PORTS NUMBER DESCRIPTION

NameNode WebUI 50070 Web UI to look at


current status of
HDFS, explore file
system
DataNode 50075 DataNode WebUI to
access the status, logs,
etc, and file data
operations when using
webhdfs or hftp
Secondary 50090 Checkpoint for
NameNode NameNode metadata

All hdfs-related configuration is done by adding and updating the properties in


the hdfs_ste.xml
File that is found in the conf folder under the Hadoop installation folder
The following are the different properties that are part of the hdfs-site.xml file:
1) dfs.namenode.servicerpc-addresss:

Code: <property>
<name>dfs.namenode.servicercp-addresss</name>
<value>node1.hcluster:8022</value>
</property>
2) dfs.namenode.http-address:
Code: <property>
<name>dfs.namenode.http-address</name>
<value>node1.hcluster:50070</value>
</property>
3) dfs.replication:
Code: <property>
<name>dfs.replication</name>
<value>3</value>
</property>
Dfs.blocksize:
Code: <property>
<name>dfs.blocksize</name>
<value>134217728</value>
</property>

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