apache.hadoop.hbase.client.RetriesExhausted Exception: Failed setting up proxy interface

This error (apache.hadoop.hbase.client.RetriesExhaustedException: Failed setting up proxy interface) mainly occurs when you do not configure your hostname and IP address property in HBase configuration files. You should not use localhost as the hostname for any of the node, you must have a proper configuration with FQDN (fully qualified domain name). [Read more…]

Heartbeat lost for all Ambari services in HDP

The main reason behind Heartbeat lost for all Ambari services in HDP is, losing the connection between the ambari-server and ambari-agent. To fix this issue you can stop and start ambari-server and ambari-agent again in proper sequence. In this article I am going to explain step by step debugging process and solution. [Read more…]

What is Auto Scaling? AWS Auto Scaling using EC2 Instance

What is Auto Scaling? AWS Auto Scaling using EC2 Instance: Auto Scaling with Amazon EC2 Instance is a way to increase the availability of your application during heavy traffic. Auto Scaling ensures that your application has a sufficient number of instances to handle the incoming requests over the network. You can write up-scaling or down-scaling policies for an application. In AWS the collection of EC2 instances is called Auto Scaling groups. [Read more…]

Getting Started with Apache Kafka

Getting Started with Apache Kafka is a complete tutorial for beginners. Kafka is a fast, salable, durable messaging system and a distributed streaming platform.It is replacement of traditional message brokers like JMS because of its reliability and replication. [Read more…]