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ubuntu@onlinelabs-15ae7c187615497fa4d5dc9f62332bae:~$ cat /etc/hadoop/conf/core-site.xml

<?xml version="1.0"?>

<configuration>

  <property>

    <name>hadoop.tmp.dir</name>

    <value>/usr/local/hadoop/data/cache/${user.name}</value>

  </property>

  <property>

    <name>io.file.buffer.size</name>

    <value>4096</value>

  </property>

  <property>

    <name>fs.default.name</name>

    <value>hdfs://10.1.8.95:9000</value>

  </property>

</configuration>