To my understanding, Start All Services would start the individual components according to the dependencies mentioned in role_command_order.json You can find this file under every stack. Here's the role_command_order.json for HDP 2.3 <https://github.com/apache/ambari/blob/trunk/ambari-server/src/main/resources/stacks/HDP/2.3/role_command_order.json>
If you want to force a start order for the component, you might have to look into adding an entry to the above file for that stack. Also note that if a service is already started state, Start All Services would not restart it (at least this was how it was, the last time I checked). On Wed, Mar 30, 2016 at 6:43 PM, Jeff Zhang <zjf...@gmail.com> wrote: > > Here's the service starting order I see when I click Start All: > > Spark actually depends on Hive/Yarn/HDFS, but it's strange that I > NodeManager/HiveServer2 start after Spark HistoryServer and there's no > NameNode/DataNode start. > > > YARN Client Install <http://localhost:8080/#> > ZooKeeper Client Install <http://localhost:8080/#> > Atlas Metadata Server Start <http://localhost:8080/#> > MySQL Server Start <http://localhost:8080/#> > Ranger Admin Start <http://localhost:8080/#> > Zeppelin Notebook Start <http://localhost:8080/#> > Ranger Usersync Start <http://localhost:8080/#> > App Timeline Server Start <http://localhost:8080/#> > History Server Start <http://localhost:8080/#> > Hive Metastore Start <http://localhost:8080/#> > ResourceManager Start <http://localhost:8080/#> > Spark History Server Start <http://localhost:8080/#> > ZooKeeper Server Start <http://localhost:8080/#> > NodeManager Start <http://localhost:8080/#> > HiveServer2 Start <http://localhost:8080/#> > Oozie Server Start <http://localhost:8080/#> > Flume Start <http://localhost:8080/#> > WebHCat Server Start <http://localhost:8080/#> > > -- > Best Regards > > Jeff Zhang > -- *Mithun Mathew* (Matt) - www.linkedin.com/in/mithunmatt/
