Monday, November 4, 2013

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.  :)

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