Trying to install hadoop by horton, there some many master services, such as
HDFS, Yarn+mapreduce, Nagios, Ganglia, Hive, Hbase and Pig as the image below.
http://postimg.org/image/pwbv6go33/
Currently, only have 4 nodes, and as below, 3 nodes may ocuppy by master
services, and only 1 node left for datanode.
http://postimg.org/image/gsdr8h719/
Does all the master services neccessary. After searching, seem all neccessary.
Can all the master services put into one node, if they are not cost much
resources. Or even master services are distrbuted for 3 nodes, I still can
distribute data services into 3 or 4 nodes.
Any suggestion, thanks.
