Why does SemaphoreSlim not solve the cache stampede protection problem in a distributed system and what should be used instead?
Middle
355
C#
How does Redis ensure correct handling of concurrent commands from multiple clients?
Middle
198
What is the problem with multiple string concatenations in a loop and what can replace it?
Middle
165
What lifetimes exist in .NET DI and why should Redis ConnectionMultiplexer be registered as a Singleton?
Middle
158
How did you store time series data: using a regular PostgreSQL or a specialized Time Series DB? Why?
Middle
157
How does the check `is not null` differ from `!= null` in C#?
Middle
149
What storage and data processing optimizations were used for a stream of 3-5 thousand events per second: indexes, partitioning, sharding?
Middle
147
What is the complexity of searching for blocked items in a List inside a loop over products, and how can it be optimized?
Middle
143
How does ValueTask differ from Task, when should it be used, and what are its limitations?
Middle
140
Why is creating a new HttpClient for each request a problem and how can it be fixed?
Middle
139
How should product prices be cached and what risks arise from cache misses?
Middle
136
Why are you looking for a new job and what project format interests you?
Middle
134
Why is distributing data across shards via customerId % shardCount problematic when changing the number of shards, and what solution should be used?
Middle
133
What queries and aggregations were performed on telemetry data?
Middle
131
What should be added when handling exceptions in code?
Middle
120