What are the main features of Eureka?

The main features of Eureka include:

1. Service registration and discovery: Eureka allows applications to register themselves to the Eureka server upon startup, and regularly send heartbeats to indicate that they are still alive. Other applications can query the Eureka server to discover available service instances.
2. Service governance: Eureka offers a simple mechanism for service governance, including load balancing, failover, and fault tolerance. Applications can dynamically access and manage service instances through Eureka.
3. Client-side load balancing: Eureka client can utilize load balancing algorithms to choose the appropriate service instance when discovering available instances, enabling request distribution and load balancing.
4. Security: Eureka offers some security measures such as client authentication during registration and encrypted transmission.
5. Scalability: Eureka’s design allows for expansion as needed for larger scale and higher availability. This can be achieved by adding more Eureka servers to handle the load and utilizing Eureka’s self-preservation mechanism to enhance availability.
6. High Availability: Eureka employs a self-preservation mechanism that allows its servers to maintain the availability of registered service instances during network partitions or other failures, ensuring clients can access them as usual.
7. Cluster Management: Eureka supports deploying multiple Eureka servers in a clustered manner, enabling high availability and load balancing through mutual registration and data replication.