medium10 pts · first answer countskafkapartitioning

One partition far busier than others

A topic keyed by merchant_id has 24 partitions. One partition gets 40% of all traffic because a single large merchant sends most orders. What is the root cause?

A.Key skew: one big key always maps to one partitionB.The producer uses the wrong compression typeC.The topic needs a higher replication factorD.The consumer group has too many members

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One partition far busier than others

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