Kafka je moćna ali ima česta isklapanja — zabune i greške oko particioniranja, redoslijeda, ponašanja potrošača, semantike dostave i operacija. Razumijevanje ovih problema pomaže izbjegavanju problema i ispravnom korištenju Kafke.
Isklapanja u dizajnu i particioniranju
✗ Too FEW partitions → limits consumer parallelism (can't scale consumption beyond
partition count); too MANY → overhead, rebalancing pain → plan partition count carefully
✗ Wrong PARTITION KEY → uneven distribution (hot partitions) or wrong ordering scope →
choose a key for even distribution AND the ordering you need
✗ Expecting GLOBAL ordering → Kafka only orders WITHIN a partition (a common misunderstanding)
✗ Adding partitions changes key→partition mapping → breaks ordering for keys (be careful)
