unclean.leader.election.enable=false→ Prevents data loss by only considering in-sync replicas when rebalancing.
replication.factor→ Specifies how many redundant copies of partitions are distributed across brokers.
min.insync.replicas=2→ Sets the standard for the number of partition instances that must keep up with the latest committed message.
unclean.leader.election.enable=false ensures that onlyin-sync replicascan be elected as leaders. If disabled, an out-of-sync replica may become leader, potentially leading to data loss.
replication.factor defineshow many brokerswill maintain copies of each partition, directly impacting durability and availability.
min.insync.replicas determineshow many replicas must acknowledgea write when acks=all is used, enforcing write durability.
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