Ambari-qa user || Ambari Installation

[#1]

Team,

What is use of ambari-qa account. Why it is require in hdp cluster. Can It replace with "root" account during hdp installation via ambari.

[#2]

Hi, You can find out complete list of service user accounts which are created by default during installation. Each user has its own requirement for different components that we install !

http://docs.hortonworks.com/HDPDocuments/Ambari-2.1.1.0/bk_ambari_reference_guide/content/_defining_...

You can customize the service accounts (root) as per your requirement during final stages of Ambari UI installation.

[#3]

@Nilesh

"ambari-qa" is Smoke Test user which performs smoke tests against cluster services as part of the install process. It also can perform these on-demand from the Ambari Web GUI.

Example: When you run the service checks then you will find that this user acccount is actually is used to perform those checks. "Ambari UI" --> "Yarn" --> "Service Action" --> "Run Service Check"

call['ambari-sudo.sh su hdfs -l -s /bin/bash -c 'curl -sS -L -w '"'"'%{http_code}'"'"' -X GET '"'"'http://erie2.example.com:50070/webhdfs/v1/user/ambari-qa?op=GETFILESTATUS&user.name=hdfs'"'"'
 1>/tmp/tmpcDRYnw 2>/tmp/tmp3Oclia''] {'logoutput': None, 'quiet': False}

.