Question-1: What is Apache Ambari?

Answer: If you wanted to create a BigData Cluster using Hadopp, HBase, Spark and all supported software. You need the Apache Ambari. Ambari is mainly used by Hortonworks® and Cloudera® to setup the Data platform. This helps in managing and monitoring the cluster.

Question-2: What all activity you can accomplish using the Apache Ambari?

Answer: There are multiple ways you can use the Apache Ambari like Web UI and REST APIs. Using that we can deploy new cluster, make the configuration changes, and also monitor the all services across the nodes in the cluster. Lets assume you have 1000 node cluster, and you wanted to monitor the service on all the 1000’s of the nodes. Then you would be using the Apache Ambari to monitor and even manage all the services across the cluster.

Question-3: What all platforms are currently supported using the Apache Ambari?

Answer: Currently HDP (Hortonworks Data platform and Hortonworks Dataflow are supported.

Question-4: Which toolkit is used by the Apache Ambari Metrics monitor utility>

Answer: Ambari Metrics monitor uses the Python Library (psutil) which requires the gcc and python-devel packages.

Question-5: Which command you would be using to check the free memory on any Linux host?

Answer: You would be using free -m command.