Answer
Use zero-copy buffers, binary protocols, Kafka/Redis pipelines, cluster workers, streaming APIs, domain sockets, and horizontal scaling.
Quick Answer
Millions of messages per second in Node.js: use binary serialization (protobuf, msgpack) instead of JSON, use native bindings for the messaging layer (e.g., node-rdkafka for Kafka), batch messages before processing, use worker threads for decode/encode operations, keep the event loop free of heavy processing, and benchmark with realistic payloads.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ