Java: Atomic Variables

AtomicInteger doesn't handle cross-node consistency.

AtomicInteger operates within a single JVM, ensuring atomicity only locally. In distributed systems, where updates might need to occur across multiple nodes, AtomicInteger cannot ensure consistency across nodes due to network latency and the lack of a shared memory space. For example, in a distributed e-commerce platform, using AtomicInteger for inventory across multiple servers would lead to inconsistencies unless complemented with a distributed coordination mechanism like Zookeeper.