Hazelcast is a distributed in-memory computing platform that provides low-latency processing of large data sets. Its in-memory data grid (IMDG) stores data in partitions and distributes them among cluster members, ensuring high availability and scalability. The integration with Datadog enables real-time monitoring of Hazelcast cluster health, including key metrics such as cluster size, memory usage, and map operations. This allows users to visualize performance issues and optimize their deployment for optimal performance. By leveraging Datadog's features, users can gain comprehensive visibility into the health and performance of their Hazelcast IMDG environment, alongside other technologies in their ecosystem.