Golang

Tell me about Redis

How is the internal structure of the string type organized in the Go language?

Junior — Middle

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What cache invalidation strategies are available in Redis? What data should be cached and what should not? L1/L2 caching.

Can Redis clusters be scaled in real-time by adding shards on the fly?

Tell about the project you are working on and orient yourself with your tasks.

What is a schema in the context of microservices?

A database is also a schema — how do you understand this?

Where is the Redis configuration stored if it is on a separate machine?

Why is segmentio/kafka-go used, is it one library or two? How do producer and consumer work?

How is Kafka physically arranged in the system — is it part of a service or on a separate machine?

Is the hash index in PostgreSQL thread-safe?

When do we need Kafka?

Is a map passed by reference to a function in Go?

Team — how many people, what roles?

Should we duplicate schemas in each microservice or consolidate them into a shared library?

Can you recall any complex architectural solution?