Message Queue Visualizer

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Connecting

Input N

Counts primes from 2 to N (max 50M; 20M ≈ 3s locally, longer on Vercel). Invalid values are enqueued as-is.

Failure scenario

Jobs / Concurrency

Retries

0–3 · up to 3 attempts

Queued

Processing

Retrying

Done

Failed (DLQ)

Avg wait

Avg processing

Queued0

Waiting for its turn in the QStash queue

Processing0

Worker is crunching on the CPU

Retrying0

Failed; QStash will redeliver

Done0

Processed successfully

Failed (DLQ)0

No more retries