Which libraries are used to write metrics in Go?
Senior
206
Golang
8386
379
What is the purpose of this code? What business-technical problem does it solve?
Senior
205
What are these metrics? What tools will we use to write these metrics?
Senior
182
// Task 4 // For a "typical" CRUD service - at some point, some methods started to work slowly and the service began to timeout. // The service consists of: // * Application Load Balancer (L7) - handling incoming requests and terminating TLS // * Backend (rest, Java/Kotlin or Golang) - processing incoming requests and business logic // * Database (Postgres) - storing and processing SQL queries // How to properly act to understand the cause of the problems and develop solutions to improve the situation?
Senior
177
// Task 3 // Describe what problem this code solves // What are the issues with this solution? // How would you rewrite this code?
Senior
163
What did you do at work?
Senior
148
// Task 3 // Describe what problem this code solves // What problems are there in this solution? // How would you rewrite this code? var c int type Trace struct { // Some fields here } type Sender interface { Send(Trace) } func Do(sender Sender, tr Trace) { c++ if c == 100 { sender.Send(tr) c = 0 } }
Senior
140
Your team’s priorities change daily, and new urgent tasks appear. What will you do about this?
Senior
136
What indices did you use at work? What did you apply in practice? In Wildberries?
Senior
136
How does partitioning work under the hood in PostgreSQL?
Senior
134
What to do with the database and load balancer when experiencing performance issues?
Senior
132
What indexes do you use in PostgreSQL?
Senior
130
What problems are there in code with a global counter? How to fix it?
Senior
128
How to access the pprof profiler on a production server?
Senior
127
On which graph did you see the problem when using pprof?
Senior
126
How to make an Increaser universal — not tied to the number 100?
Senior
121
// Task 3 // Describe what problem this code solves // What problems are there in this solution? // How would you rewrite this code? var c int var mu sync.RWMutex type Trace struct { // Some fields here } type Sender interface { Send(Trace) } func Do(sender Sender, tr Trace) { mu.Lock() defer mu.Unlock() c++ if c == 100 { go func() { sender.Send(tr) }() c = 0 } }
Senior
119
function normalize2(str []rune) []rune { result := str[:0] for val := range str { if val != ' ' { result = append(re) } } l, r := 0, 0 isSpace := false for i := 0; i < len(str); i++ { val := string(str[i]) if val == " " { if isSpace { continue } else { str[r] = val r++ isSpace = true } } else { str[r] = val r++ isSpace = false } } return str[:r] }
Senior
110
Can Increaser be an implementation of Sender? How does Increaser differ from Sender logically?
Senior
106
Can you describe how you designed and implemented REST and gRPC APIs for internal and external platform services?
Senior
101