6. Elasticsearch is a search engine based on
Lucene. It provides a distributed, multitenant-
capable full-text search engine with an HTTP
web interface and schema-free JSON
documents.
AMQP is an open standard application layer
protocol for message-oriented middleware. Its
defining features are message orientation,
queuing, routing, reliability and security.
PostgreSQL is an open source relational
database management system ( DBMS )
developed by a worldwide team of volunteers.
Nats IO is a simple, high performance open
source messaging system for cloud native
applications, IoT messaging, and microservices
architectures.
REDIS is an open source (BSD licensed),
in-memory data structure store, used as
database, cache and message broker. It
supports data structures.
Kafka is an open-source message broker
project developed by the Apache Software
Foundation. The project aims to provide a
unified, high-throughput, low-latency platform
for handling real-time data feeds.
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