Wednesday, September 25, 2013

Starting/Stoping Hadoop and HBase in order

Hadoop Startup Process

Namenode  -->  Datanodes  -->  SecondaryNamenode  -->  JobTracker  -->  TaskTrackers

Hadoop Shutdown Process
JobTracker  -->  TaskTracker  --> Namenode  -->  Datanodes  --> SecondaryNamenode

HBase Startup Process

Zookeepers  -->  HMaster  -->  RegionServers

HBase Shutdown Process

RegionServers  -->  HMaster  -->  Zookeepers
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