RabbitMQ में, एक connection broker से एक TCP connection है, जबकि एक channel एक connection के भीतर एक lightweight virtual connection है। channels का उचित उपयोग (कई connections के बजाय) efficiency के लिए महत्वपूर्ण है और एक सामान्य best practice है।
Connections बनाम channels
CONNECTION → a TCP connection to the RabbitMQ broker:
→ relatively HEAVY (a real network connection, with overhead to establish/maintain)
CHANNEL → a lightweight, virtual connection MULTIPLEXED over a single TCP connection:
→ many channels share one connection → lightweight; most operations happen on channels
→ publishing, consuming, declaring queues → done via channels
→ one connection can have MANY channels (multiplexing reduces TCP overhead)
