infinispan 缓存可以在使用 hibernate 的同一 Spring Boot 应用程序的多个实例之间共享吗？

Question

I have a spring boot application which uses hibernate. I want to run multiple instances of this application which connects to the same database. I accidentally stumbled on infinispan as a second-level cache. I would like to implement infinispan as a second-level cache for hibernate. Now if I start multiple instances of this same spring boot application, will the infinispan caches of all the different instances be shared among each other?

Answer 1

The default Infinispan configuration in use with Hibernate 2nd level cache would result on each instance trying to find each other. For this to work, they'd need to find each other via UDP multicast, and then they would communicate with each other via TCP.

We have an Spring Boot Hibernate Cache example that uses Infinispan that overrides this configuration for using it with a single instance.

If you comment this line , Infinispan would use the clustered configuration .

Answer 2

The best way I've found to share cache between several machines using Spring Boot is using Redis.

You just have to define the Redis server you are using, define the correct RedisTemplate in your configuration, and use the @Cacheable annotation which will store the result in Redis using the parameters you provided as a key. All instances will share the same cache source.

The issue comes if your Redis and different instances have a slow latency, this will cause the cache system to be slow and it might be more interesting to keep it the instance memory. However, it the severs are located closely enough to the Redis, it should be a great improvement and very helpful for scalability purposes reducing the pressure on the database :-)

More info in this nice paper: https://medium.com/@MatthewFTech/spring-boot-cache-with-redis-56026f7da83a