Elasticsearch Foundation: Installation, CRUD, and Clustering
Before launching queries, ensure your server environment permits necessary cross-origin requests and establish a management interface.
CORS Configuration: In the config/elasticsearch.yml file of your installation directory, enable HTTP Cross-Origin Resource Sharing to allow frontend access:
# Enable HTTP CORS support
http.cors.enabled: true
# ...
Posted on Tue, 23 Jun 2026 16:03:17 +0000 by Platinumweaver
Distributed Message Queue Cluster Setup with ZooKeeper and Kafka
Message Queue Fundamentals
Understanding Message Queues
A message represents data transmitted between applications. Messages can range from simple text strings to complex structures containing embedded objects.
A Message Queue (MQ) serves as an asynchronous communication mechanism in software systems. It decouples communication between differen ...
Posted on Wed, 17 Jun 2026 16:15:00 +0000 by nickmagus
Setting Up a Two-Node Hadoop HDFS Cluster
Cluster Planning
This guide covers the setup of a two-node Hadoop cluster for HDFS and YARN. The configuration uses one master node and one resource manager node.
IP Address
Deployed Services
Role
192.168.56.2 (master-node)
NameNode, DataNode, NodeManager, Hive, Presto, MySQL, Hive Metastore, Presto CLI
Master Node
192.168.56.3 (wor ...
Posted on Thu, 14 May 2026 04:41:39 +0000 by Brentley_11