What's the usage of "state transfer"?

[karonwucheng]

I am wondering what the usage of state transfer?

In my project, I use infinispan in embedded mode, both replica mode and distributed mode. should i use state transfer?

state transfer seems a important configuration item, and is it necessary in my case?

thanks.

[rvansa]

State transfer is a process of migrating cache entries from one node to another when a node joins, leaves or crashes. By default it is enabled. If you expect any kind of reliability after these operations from the cache, you should use it. It comes at no cost when the cluster membership is not changing.