question Re: No Services Running on Practice Exam in Archives of Support Questions (Read Only)

No Services Running on Practice Exam

mnolan — Fri, 16 Sep 2022 09:53:29 GMT

When I set up the Amazon Instance I followed the directions on the Java Developer Practice Exam except for Network type (which I assume to be the problem), because Classic-EC2 was not an option for me, I just went forward with the only option that I had.

When I'm on the instance Ambari shows lost heartbeat to all of the services and I cannot access the hdfs file system which gives me an Exception that the connection was lost to the namenode.

Re: No Services Running on Practice Exam

nsabharwal — Wed, 16 Dec 2015 06:35:41 GMT

@spatel @rich

Re: No Services Running on Practice Exam

mnolan — Wed, 16 Dec 2015 07:37:14 GMT

Extra info. The only option I have is the vpc network.

Re: No Services Running on Practice Exam

rich1 — Wed, 16 Dec 2015 08:57:05 GMT

Make sure you are not using the free EC2 instance type - it is not big enough to run HDP. Log in and try restarting the Ambari agent, and then run the start_all_services.sh script:

# ssh namenode "ambari-server restart"
# /root/start_all_services.sh

Let me know if that works for you.