question Re: ambati values that greater then scrollbar in Archives of Support Questions (Read Only)

ambati values that greater then scrollbar

mike_bronson7 — Sun, 18 Aug 2019 07:47:08 GMT

in order to explain my question I will give the following example

under YARN --> CONFIG

we have the following setings

and then we CHANGE the following NEW settings

as we can see the value - 100 is greater then scrollbar recommended

in that case when we set the value 100

what is the real value that ambari is using ?

dose ambari take the max value - 96 ?

or ambari take the value - 100 ?

Re: ambati values that greater then scrollbar

jsensharma — Thu, 13 Sep 2018 13:43:43 GMT

@Michael Bronson

The yarn.nodemanager.resource.cpu-vcores value sets the number of CPU cores that can be allocated for containers.You should set the number of vcores to match the number of physical CPU cores on the NodeManager hosts.

https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.6.4/bk_yarn-resource-management/content/enabling_cpu_scheduling.html

So depends on how many CPU cores do you have?

Following is a good reference point for vcores: https://hortonworks.com/blog/managing-cpu-resources-in-your-hadoop-yarn-clusters/

Re: ambati values that greater then scrollbar

mike_bronson7 — Thu, 13 Sep 2018 14:24:40 GMT

@Jay regarding my question what actuality happens if I set the value - 100 that is more then ambari recomended , dose ambari will take the value 100 anyway ? , or the limit is 96 ?

Re: ambati values that greater then scrollbar

mike_bronson7 — Thu, 13 Sep 2018 14:26:08 GMT

@Jay , can you look on my question on thred - https://community.hortonworks.com/questions/221835/how-to-calculate-the-yarnnodemanagerresourcecpu-vc-1.html , I will really apritiate your opinion

Re: ambati values that greater then scrollbar

akhilsnaik — Thu, 13 Sep 2018 16:49:32 GMT

Hi @Michael Bronson ,

ambari will give you recommendations on the Value to be set. You can set any value as per your Cluster and business logic.

Once you saved and restart the Yarn clients the changes will be synced to your yarn-site.xml

if you are able to save the configuration after clickin on proceed anyway ambari will save 100 .

Please see if this helps you.