Hi Genius,
I just configured HDFS Federation, and try to use it(2 namenodes, one is
for /my, another is for /your). When I run the command:
hdfs dfs -ls /,
I can get:
-r-xr-xr-x - hadoop hadoop 0 2016-06-05 20:05 /my
-r-xr-xr-x - hadoop hadoop 0 2016-06-05 20:05 /your
This makes sense. However, when I run the command to create a new directory:
hdfs dfs -mkdir /my/test
I got error:
mkdir: `/my/test': No such file or directory.
Even when I run "hdfs dfs -ls /my", still get the no such file or directory
error.
Does someone tell me how to use the command line to do the file operations
with HDFS Federation? Thanks a lot for your help.
I attached My core-site.xml and hdfs-site.xml:
Core-site.xml:
<configuration>
<property>
<name>fs.defaultFS</name>
<value>viewfs:///</value>
</property>
<property>
<name>fs.viewfs.mounttable.default.link./my</name>
<value>hdfs://Master:9000/my</value>
</property>
<property>
<name>fs.viewfs.mounttable.default.link./your</name>
<value>hdfs://Slave1:9000/your</value>
</property>
<property>
<name>hadoop.tmp.dir</name>
<value>file:/home/hadoop/hadoop_build/tmp</value>
</property>
</configuration>
Hdfs-site.xml:
<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>file:/home/hadoop/hadoop_build/tmp/dfs/name</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>file:/home/hadoop/hadoop_build/tmp/dfs/data</value>
</property>
<property>
<name>dfs.federation.nameservices</name>
<value>mycluster,yourcluster</value>
</property>
<property>
<name>dfs.namenode.rpc-address.mycluster</name>
<value>Master:9000</value>
</property>
<property>
<name>dfs.namenode.rpc-address.yourcluster</name>
<value>Slave1:9000</value>
</property>
<property>
<name>dfs.namenode.http-address.mycluster</name>
<value>Master:50070</value>
</property>
<property>
<name>dfs.namenode.http-address.yourcluster</name>
<value>Slave1:50070</value>
</property>
</configuration>
