I have 15 nodes and 150 regions in hbase. My jobs are only running 13 total tasks.
How do I increase some count or size to get more tasks running? -->
What settings in Cloudera Manager do I need to modify in order to get the task count increased?
I would like to have around 150 tasks running if possible.
Check this post: http://blog.cloudera.com/blog/2013/11/migrating-to-mapreduce-2-on-yarn-for-operators/
It will give you the basics for the node config and explain how to setup your NM.