Embedded / IoT

How does Entity Graph differ from JOIN FETCH?

Consumer lag has increased to 10 million messages. What is the plan of action?

One of the three consumers has become unresponsive. What will happen to the partitions? What will happen if it becomes responsive again?

Have you faced deadlocks during parallel batch processing?

What is the 'synchronized' keyword?

How is dependency injection recommended in Spring?

What is idempotency?

Tell more about the development of microservices for billing and tariffing at MegaFon — how it all happened, what exactly did you do?

If a bean C calls a method of bean A with logging aspect, and inside A, private methods B, C, D are called — are the calls to B, C, D logged?