Eureka 2.0 Server Configuration And Use

Prerequisites

• JDK 1.7

You can get the Eureka 2.0 client binaries from the following sources. Always try to get the latest release as tend to have more fixes.

• Bintray
• Maven Central

Types of Servers

Eureka 2.0 uses two main types of servers by default, write servers and read servers. An optional bridge module is available that can be configured to be a component of a write server that allows bridge of data from a currently deployed eureka 1.0 system to the 2.0 system.

Common Server Configuration

The combination of resolverType and serverList defines the write server cluster.

• ResolverType can either be fixed (read straight from the serverList) or dns (the serverList name is taken as a dns entry and expanded);
• ServerList is a comma delimited list with each entry in the format name:registrationPort:interestPort:replicationPort.

eureka.common.writeCluster.resolverType=fixed
eureka.common.writeCluster.serverList=["localhost:12102:12103:12104","localhost:12112:12113:12114"]

Each server will also need configuration to self identify.

• appName - the server's appName in its own InstanceInfo record
• vipAddress - the server's vipAddress in its own InstanceInfo record
• dataCenterInfo.type - Basic or AWS

eureka.instanceInfo.appName=eureka-write-cluster
eureka.instanceInfo.vipAddress=eureka-write-cluster
eureka.dataCenterInfo.type=Basic

Write Servers

Artifact

• com.netflix.eureka:eureka2-write-server

Write servers have the following responsibilities:

• accepting registration requests from eureka registration clients
• accepting interest discover requests from eureka interest clients
• replicate local registration data to peer write servers

Building the Write Server

Configuring the Write Server

For each of the responsibilities listed above, a separate port needs to be exposed. See the ]example configuration](../blob/2.x/eureka2-write-server/src/main/resources/eureka-write-server.properties)

Read Servers

Artifact

• com.netflix.eureka:eureka2-read-server

Building the Read Server

Configuring the Read Server

Bridge Servers

Building the Bridge Server

Configuring the Bridge Server

The Embedded Cluster