Creating new HDFS in CDH4

Question

I have installed CDH4 following the instructions in CDH4-Quick-Start.pdf for ubuntu. Three directories were created by default in /var/lib namely: hadoop-hdfs, hadoop-mapreduce, hadoop-yarn. Since I don't have much space in this partition I want to have at least the hdfs in another partition. I have stopped the hdfs and changed the parameters in hdfs-site.xml pointing to a directory in the new partition. I ve formatted and restarted hdfs but it was still the old directory that had been formatted. Now I don't have access to the server too.

What is the right procedure to create or move the 3 directories to another location? How can I fix the problem with the server?

Thanks in advance.

Answer 1

If you are using cloudera with cloudera manager then just go to the hdfs service configuration page and set the

dfs.data.dir

If you wanna do it manually just simply edit the hdfs-site.xml and change the value of this property to your desired location it will set the data directory of your hdfs to this location.