Starting HDP2 Services in the Right Order

One of the top ten issues new administrators have with Hadoop is starting and stopping Hadoop services in the right order.  When starting and stopping a Hadoop 2 cluster (HDP2) use the following order to keep you between the yellow lines.

HDFS	Storage
YARN	Processing
ZooKeeper	Coordination Service
HBase	Columnar Database
Hive Metastore	Metadata
HiveServer2	JDBC Connectivity
WebHCat	Metadata Resources
Oozie	Workflow / Scheduler

Take care of your Hadoop cluster and it will take care of you.  :)