This post takes a closer look at Apache Ignite’s C++ API (called Ignite C++). It's intended primarily for C/C++ programmers.
Ignite and Ignite С++
Ignite C++ is built on top of Ignite
Ignite С++ starts the JVM in the same process and communicates with it via JNI
.NET, C++ and Java nodes can join the same cluster, use the same caches, and interoperate using common binary protocol