Hazelcast with hundreds of clients

If you plan an hazelcast architecture scaling up to hundreds of clients, the following points are important:

- Stability of your network environment. In AWS, hosting clients and servers in same zones will help you.

- The server should be powerful enough. CPU, number of cores etc.

- Use client near cache. It will decrease network overhead.

- Prefer version 3.2. It has more scalable client architecture.

- You can try increasing number of threads in client executor pool (default is core size * 5)

clientConfig.setExecutorPoolSize(40); 
// also available in client-config.xml