LOGICAL DATA MODELING To start with Cassandra data modeling, we are ready to begin designing Cassandra tables. From the conceptual model we must create a logical model containing a table for each query, capturing entities and relationships. Then identify the primary entity type for which… Read More


WRITE PATHS IN CASSANDRA: TERMINOLOGY OF APACHE CASSANDRA: 👉 Gossips 👉 Partitioners 👉 Snitchers 👉 SSTables 👉 Tombstones 👉 Compactions Cassandra uses murmur3 partitioners and murmur3 algorithms to create Tokens.   Cassandra Data Write Path: How Data Is Written: Data is processed by Cassandra at multiple points along… Read More

AZURE: Storage Account Creation

AZURE: Storage Account Creation Storage Account: 👉 An Azure Storage account is a fundamental resource that holds all your Azure storage data objects like blobs, queues, files and tables. 👉 It provides a unique namespace so that anyone can access through HTTP and HTTPS requests.… Read More

Azure: Different types of availability options

Different types of availability options  Azure offers different types of availability options which includes. 1. No infrastructure redundancy required. 2. Availability zone 3. Virtual machine scale set 4. Availability set 1. No infrastructure redundancy required. • This does not provide any redundancy. • When you… Read More

PostgreSQL: Contrib Modules

Contrib Modules: In PostgreSQL, “contrib” stands for “contributed modules”. These are additional functionalities and features developed by the community that are not part of the core PostgreSQL distribution, but can be easily added to enhance the capabilities of the database. Contributed modules are distributed separately… Read More