How is a new leader for a partition chosen when the old one fails? What is quorum in Kafka?
Senior
50
Java
14740
265
What does volatile ensure and why is it needed?
Senior
50
How does Kafka replication work, what happens when a broker fails, and how to ensure that a record is replicated?
Senior
50
What index should be applied for this SQL query and what does INCLUDE do in PostgreSQL?
Senior
50
Did you participate in making global architectural decisions?
Senior
48
What ThreadPoolExecutor/ExecutorService types are there and when to choose which?
Senior
48
How to avoid retry storm during Kafka processing issues?
Senior
48
How does ReentrantLock differ from synchronized, when to choose what and what was used in practice?
Senior
48
Do you review code, did your code get reviewed and what were the approval rules?
Senior
48
What is rebalancing in Kafka and what happens to messages and order during partition redistribution?
Senior
48
What patterns to use for distributed transactions between services besides Outbox?
Senior
48
What are the possible types of ThreadPoolExecutor/ExecutorService and when to choose which?
Senior
46
How to wait for the completion of three parallel tasks in Java?
Senior
46
Why might @Transactional not work when called in @PostConstruct?
Senior
46
What are the possible types of ThreadPoolExecutor/ExecutorService and when to choose which?
Senior
46
How is HashMap implemented internally, what happens during collisions and resize?
Senior
46
Can @Transactional be applied to private methods and what tools are available?
Senior
32
What is a monitor in Java and what is it used for?
Senior
14
How does a composite index work in PostgreSQL?
Senior
10
When are indexes useful?
Senior
8