When a map overflows, a new bucket chain is created. Explain what happens to old and new keys during transfer. Why is data transferred lazily instead of immediately as in a slice?
Senior
416
Golang
8386
379
How was the number of instances regulated? Who set the resource requirements in Kubernetes?
Middle+
261
Is there a Stop the World event during Garbage Collection in Java?
Senior
261
If we have 16 partitions and 2 consumers, how will they be divided? What will happen when a third consumer is added?
Middle+
260
When is it better to use partitioning, and when sharding?
Senior
235
Is having an index always a good thing? Is an option with an index always better than without it?
Senior
229
When sharding, the user does not know which machine holds their data. How is this resolved?
Senior
228
What is the measure of 'cost' in EXPLAIN? What is 'cost'?
Senior
218
What other options are there to increase database speed besides indexes?
Senior
217
What are the advantages of replication? What are its costs?
Senior
204
How did the services interact with each other? Where were they located?
Middle+
203
There is an HTTP handler that performs a complex SELECT in the database, and the user is dissatisfied with the long wait. What is the sequence of actions for diagnosis and optimization?
Senior
202
What synchronization tools do you know in Go?
Senior
201
How was deployment carried out? Through what was it rolled out in Kubernetes?
Middle+
198
What was done with duplicates after detection? Where were they cleaned?
Middle+
196
Why is top-hash used in a map?
Senior
196
Will pprof always show that you have a memory leak or a limit exceeded?
Senior
195
Are there ways to manage (tune) the moments of Garbage Collector launch? For example, compiler settings?
Senior
193
What happens if one of the consumers in the group goes down? Tell about rebalancing.
Middle+
192
Tell about the team composition, service responsibilities, and release cycle.
Middle+
184