Thanks Mithun, I thought the order was specified in metainfo.xml as following
<requiredServices> <service>YARN</service> </requiredServices> On Thu, Mar 31, 2016 at 10:05 AM, Mithun Mathew <mithm...@gmail.com> wrote: > 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/ > > -- Best Regards Jeff Zhang
