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KIPs / KIP-106

KIP-106 — Change Default unclean.leader.election.enabled from True to False

Accepted Kafka 1.0 Broker

Changes the default value of `unclean.leader.election.enabled` from `true` to `false`, making durability the default and requiring an explicit opt-in for availability-over-durability mode. With the old default, a broker with a stale replica could silently become leader on ISR failure, causing data loss without operators realizing this was the configured behavior.

Details

AuthorBen Stopford
StatusAccepted
Kafka Version1.0
JIRAKAFKA-5257
WikiView on Apache Wiki
Created2017-01-03
Last Modified2017-05-16
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