What are optimistic and pessimistic locks in PostgreSQL? What is the difference?
Golang
Are you considering full-time employment (40 hours a week) or part-time (20 hours a week)?
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Write a Graceful Shutdown mechanism for an HTTP server using channels and OS signal handling (Ctrl+C)
Implement a cache based on map[string]any with a constructor, Get method, and Set method, considering concurrent access (Mutex)
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What is the difference between EXPLAIN and EXPLAIN ANALYZE in PostgreSQL?
Is there experience working with Elasticsearch as a database (not for logs)?
What is a partition in Kafka? How does reading from partitions work?
What happens if there are 5 partitions in a topic and 10 consumers in one consumer group?
Do you have experience with CI/CD? What did you do?
Does Kafka guarantee message delivery? Can Kafka lose a message if the producer does not receive an error?
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What are your salary expectations? What amount do you consider per month?
The production request is slow. How will you investigate and optimize?