Zookeeper Cluster

Setup Zookeeper Cluster – A minute chore

  Despite the fact that Apache Zookeeper’s functionalities are not legitimately noticeable to end-client however it remains as the spine for hyped components like Hadoop to oversee automatic failover, Kafka’s […]

Permission issue

Resolve permission issue among DataNodes with NameNode to establish Secure Shell /SSH without passphrase

Sometimes it has been observed that when we configure and deploy multi-node Hadoop cluster or add new DataNodes, there is a SSH permission issue in communication with Hadoop daemons. In […]

Installation of Apache Hadoop 3.2.0

Apache Hadoop 3.2.0 has been released after incorporating many outstanding enhancements over the previous stable release. The objective of this article is to explain step by step installation of Apache […]

Manual procedure to add a new Datanode into an existing basic data lake without Apache Ambari or Cloudera Manager. Constructed using HDFS (Hadoop Distributed File System) on the multi-node cluster

   The aim of this article is to highlight the essential steps when there would be a need for a new DataNode into an exiting multi-node Hadoop cluster. Midsize or […]

HADOOP CLUSTER

Deleting Solr log files/folder from Standby NameNode could be the disaster when Primary NameNode is active in the HDP (Hortonworks Data Platform) Hadoop Cluster

Most of us know that we use Apache Ambari for managing, provisioning and monitor different components of a Hortonworks Hadoop cluster. We also know that Apache Ranger can be used […]

FAULT TOLERANCE ENHANCEMENT ON APACHE HADOOP 3.0.0

Fault tolerance enhancement on Apache Hadoop 3.0.0-alpha2 by supporting more than 2 NameNodes.

NameNode is the most critical resource in Hadoop core cluster. Once very large files loaded into the Hadoop Distributed File System (HDFS), the files get broken into block-sized chunks as […]