question Re: Query Ambari to get each host/service racks in Archives of Support Questions (Read Only)

Query Ambari to get each host/service racks

manisha_pande — Thu, 19 Apr 2018 18:23:42 GMT

Do we have any api to get rack info of each /service in an ambari cluster

Re: Query Ambari to get each host/service racks

jsensharma — Thu, 19 Apr 2018 18:52:08 GMT

You can use the following Ambari API call:

# curl -u admin:admin -H "X-Requested-By:ambari" -X GET http://ambariserver.example.com:8080/api/v1/clusters/TestCluster/hosts?fields=Hosts/rack_info,Hosts/host_name

Please replace the "TestCluster" with your own cluster name and the ambari hostname in the above URL.

Re: Query Ambari to get each host/service racks

manisha_pande — Thu, 19 Apr 2018 19:03:56 GMT

@Jay Kumar SenSharma

Thanks Jay!!

My requirement to check each service get host name and rack info.Can we achieve this in one api.

Appreciate your help.

Re: Query Ambari to get each host/service racks

jsensharma — Thu, 19 Apr 2018 19:10:03 GMT

@Manisha Pande

Can you please clarify what exactly do you mean by "check each service get host name and rack info"?

In Each service where do you see the rack info?

Re: Query Ambari to get each host/service racks

manisha_pande — Thu, 19 Apr 2018 19:16:39 GMT

@Jay Kumar SenSharma

For example , I have two hosts in a cluster hostA, HostB

HostA is on rack-1 and HostB is on rack-2

Services components running in hostA are HDFS_CLINET, ZOOKEEPER,NAMENODE..etc

Services components running in hostB are HBASE, AMABRI_METRICS,DATANODE...etc

I want get result from api like Host: HostA, Service_component : NAMENODE, rack_info: rack-1

HostA, Service_component : ZOOKEEPER, rack_info: rack-1

HostB, Service_component : DATANODE, rack_info: rack-2

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Re: Query Ambari to get each host/service racks

jsensharma — Thu, 19 Apr 2018 19:28:14 GMT

@Manisha Pande

In that case you cane add the "host_components/HostRoles/service_name" part in the same API call to also list the components on each host along with the Rack Info. Burt you will have to parse the output based on your requirement.

Example:

# curl -u admin:admin -H "X-Requested-By:ambari" -X GET  http://hdfcluster1.example.com:8080/api/v1/clusters/TestCluster/hosts?fields=Hosts/rack_info,Hosts/host_name,host_components/HostRoles/service_name

Re: Query Ambari to get each host/service racks

jsensharma — Wed, 02 May 2018 08:02:14 GMT

@Manisha Pande

If this answers your query/issue then please mark this HCC thread as answered by clicking on "Accept" link on the correct answer, That way it will help other HCC users to quickly find the answers.