Immaniġġa ta' irruri u messaġġi li fallew hija importanti għal consumer Kafka affidabbli — li tiddecidi x'għandek tagħmel meta l-ipproċessar ta' messaġġ ifalli (erġa' prova, aqbeż, jew irrotta lejn dead letter queue). L-immaniġġa ta' irruri korretta tipprevjeni tat-telf tad-data u consumer li jibqgħu miksija.
Il-problema: iffaljanzi tal-ipproċessar
When a consumer fails to PROCESS a message (bad data, downstream failure, bug):
→ BLOCKING retry forever → the consumer gets STUCK on a "poison" message (can't progress)
→ skipping silently → data LOSS (the message is lost)
→ crashing → consumer restarts, reprocesses, may get stuck again
→ need a deliberate error-handling strategy.
