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From Chris Nauroth <cnaur...@hortonworks.com>
Subject Re: hadoop not using whole disk for HDFS
Date Tue, 03 Nov 2015 17:57:29 GMT
Hi Bob,

Does the hdfs-site.xml configuration file contain the property dfs.datanode.du.reserved? 
If this is defined, then the DataNode intentionally will not use this space for storage of
replicas.

<property>
  <name>dfs.datanode.du.reserved</name>
  <value>0</value>
  <description>Reserved space in bytes per volume. Always leave this much space free
for non dfs use.
  </description>
</property>

--Chris Nauroth

From: MBA <adaryl.wakefield@hotmail.com<mailto:adaryl.wakefield@hotmail.com>>
Reply-To: "user@hadoop.apache.org<mailto:user@hadoop.apache.org>" <user@hadoop.apache.org<mailto:user@hadoop.apache.org>>
Date: Tuesday, November 3, 2015 at 10:51 AM
To: "user@hadoop.apache.org<mailto:user@hadoop.apache.org>" <user@hadoop.apache.org<mailto:user@hadoop.apache.org>>
Subject: hadoop not using whole disk for HDFS

I've got the Hortonworks distro running on a three node cluster. For some reason the disk
available for HDFS is MUCH less than the total disk space. Both of my data nodes have 3TB
hard drives. Only 100GB of that is being used for HDFS. Is it possible that I have a setting
wrong somewhere?

B.

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