question Re: Rack Topology in Archives of Support Questions (Read Only)

Rack Topology

kums — Wed, 05 Sep 2018 20:56:23 GMT

I got a new environment and I just got access to ambari. Is there a way I can find out if Rack Topology has been implemented just by looking into ambari ?

The reason I am asking is, I get constant Load Average alerts from a particular box and I found that box has lesser CPU and Memory. Should not Resource manager sent lesser tasks to that particular node ?

thanks

Kumar

Re: Rack Topology

akhilsnaik — Wed, 05 Sep 2018 22:33:44 GMT

Hi @Kumar Veerappan ,

Yeah you can know the rack topology structure of cluster using ambari.

You can actually refer to this blog which is more helpfull and explained in detail: https://community.hortonworks.com/articles/43164/rack-awareness-series-2.html

Please login and accept answer if you found this answer helpfull

Re: Rack Topology

kums — Wed, 05 Sep 2018 22:47:21 GMT

@Akhil S Naik

Thank you. Looks like my cluster is not Rack aware. ANy help on my second question is highly appreciated.

Re: Rack Topology

akhilsnaik — Wed, 05 Sep 2018 23:05:11 GMT

Hi @Kumar Veerappan,

I am not sure about how to answer that without knowing your cluster specifications and artitecture. but willn't automatic failover's help you ?

If its ambari alerts that are annoying for you. you can investigate , edit the alerts accordingly (you can edit the Alerts on what percent of CPU the alert to trigger ) or even disable it if not required

hope this helps you.

Please accept answer if it did.