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 […]
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 startup […]
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-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 […]
