is it require to start Hadoop deamons when machin shutdown and start

[#1]

I have installed the hadoop properly.Now all the nodes runnig. But when i shutdown the machine and start it , do i need to start hadoop deamons each and every time ?

aruna@aruna:~/hadoop-2.7.3/sbin$ sudo jps

4256SecondaryNameNode

3921NameNode

4437ResourceManager

4918Jps

4074DataNode

4876JobHistoryServer

4733NodeManager

[#2]

Take a look at ambari auto start services feature in ambari 2.4.x

Here is the documenation

https://cwiki.apache.org/confluence/display/AMBARI/Recovery%3A+auto+start+components#Recovery:autost...

[#3 · Accepted solution]

@Aruna Sameera- It all depends whether you have set up the cluster manually or using Ambari

• If you have set it up manually you would need to start all the services manually on the cluster in this order:
  • https://community.hortonworks.com/questions/41253/whats-the-best-order-of-startingstoping-hdfs-servi...
• If you have used Ambari to setup the cluster and the version of Ambari is 2.4.x or newer, you can use the auto start services feature as mentioned above
• Else you can use follow the below order:
  • https://community.hortonworks.com/questions/10316/what-is-best-way-to-reboot-machines-in-the-hadoop....