Support Questions
Find answers, ask questions, and share your expertise
Announcements
Alert: Welcome to the Unified Cloudera Community. Former HCC members be sure to read and learn how to activate your account here.

How do i add a new node to the existing cluster with new host group having different components

Solved Go to solution

How do i add a new node to the existing cluster with new host group having different components

New Contributor

Hi,

I have created a cluster using blueprints which has some service running on it(host_group_0) say HDFS , YARN , Zookeeper but now the requirement is i want to add new node to this cluster in which i want to add only HDFS or only YARN or only Zookeeper or some other service say SPARK.

So I cannot use the existing hostgroup or i cannot clone the existing host. I have to write a new host group with the service i need and POST the api with the new node.

How can i achieve this using api.

1 ACCEPTED SOLUTION

Accepted Solutions

Re: How do i add a new node to the existing cluster with new host group having different components

Super Mentor

@ashfaq ahamed

If your cluster is already deployed and ready then you can use the ambari to add a new host as following: following: https://hortonworks.com/hadoop-tutorial/using-apache-ambari-add-new-nodes-existing-cluster/

Once the host is added then you can deploy the desired service components/clients to that host.

But if you want to add a new host only using the Ambari APIs then you can refer to : https://cwiki.apache.org/confluence/display/AMBARI/Add+a+host+and+deploy+components+using+APIs

3 REPLIES 3

Re: How do i add a new node to the existing cluster with new host group having different components

New Contributor

can anyone please share the link for addition nodes to cluster using "Specify an inlined hostgroup" method.

Re: How do i add a new node to the existing cluster with new host group having different components

Super Mentor

@ashfaq ahamed

If your cluster is already deployed and ready then you can use the ambari to add a new host as following: following: https://hortonworks.com/hadoop-tutorial/using-apache-ambari-add-new-nodes-existing-cluster/

Once the host is added then you can deploy the desired service components/clients to that host.

But if you want to add a new host only using the Ambari APIs then you can refer to : https://cwiki.apache.org/confluence/display/AMBARI/Add+a+host+and+deploy+components+using+APIs

Re: How do i add a new node to the existing cluster with new host group having different components

Super Mentor

@ashfaq ahamed

Also please refer to the following article to know How to dynamically Add Hosts to a Cluster with Blueprints ?

https://community.hortonworks.com/articles/1333/dynamically-adding-hosts-to-an-existing-cluster-wi.h...

The Blueprints are not only useful to "initially" provision a cluster but they are also quite helpful to extend the existing cluster as well.