Ngopeni Kafka butuh momitor metrik kunci — utamane consumer lag (sepira adoh konsumen ketinggalan) — plus kesehatan broker, throughput, lan status partisi. Ngerti momitor lan consumer lag penting kanggo ngopeni Kafka kanthi andal.
Consumer lag (metrik kunci)
CONSUMER LAG → how far BEHIND a consumer is = (latest offset) − (consumer's committed offset):
→ high/growing lag → the consumer can't keep up with the production rate (a problem!)
→ indicates: slow processing, too few consumers, a stuck/failed consumer, or a traffic spike
→ monitor lag → detect when consumers fall behind (a primary Kafka health signal)
