question Re: Adding host in HDP cluster in Archives of Support Questions (Read Only)

Adding host in HDP cluster

sandeep_gupta — Thu, 20 Sep 2018 00:49:24 GMT

I am adding new host in hdp cluster using ambari Ui. i had successfully completed step 1 and Now in step 2 hosts are registered and status is success but it is not moving to step 3. In UI it is showing "Please wait while the hosts are being checked for potential problems."please suggest a solution.I have attached the screenshot for same.

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Re: Adding host in HDP cluster

apappu — Thu, 20 Sep 2018 01:31:16 GMT

@sandeep gupta

Do you have any hosts are not heart beating in the cluster? or any nodes are in "Maintenance Mode" ?

Basically Ambari server does the host check call for all the hosts ( I guess all master component hosts) and if any one of them down then it keep showing that screen. so make sure all hosts are heart beating and then not in MM.

One of the workaround is to disable the Hostcheck call and attempt to add again.

Login to Ambari in one tab and in another tag open "http://AMBARI-HOST:8080/#/experimental" and select "disableHostCheckOnAddHostWizard" checkbox and save it.

Now you can attempt to add the node again.

Re: Adding host in HDP cluster

apappu — Thu, 20 Sep 2018 23:20:27 GMT

@sandeep gupta please mark the correct answer if it has resolved the issue