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This pull request configures Kafka internal topics for a single-broker production environment in docker-compose.prod.yml to prevent consumer group join failures. The reviewer suggests further optimizing resources in this memory-constrained environment by reducing the partition counts for internal topics to 1.
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| KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1 | ||
| KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1 | ||
| KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1 |
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현재 설정된 KAFKA_HEAP_OPTS: "-Xms256m -Xmx256m"와 같이 메모리가 매우 제한된 환경(t3.small 등)에서 단일 브로커를 운영할 때, 내부 토픽(__consumer_offsets, __transaction_state)의 기본 파티션 수(기본값 각각 50개)는 불필요하게 많은 파일 디스크립터와 메모리 오버헤드를 발생시킬 수 있습니다.
따라서 단일 브로커 환경에서는 이 내부 토픽들의 파티션 수를 1개로 줄여 리소스를 최적화하는 것을 권장합니다.
KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
KAFKA_OFFSETS_TOPIC_NUM_PARTITIONS: 1
KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
KAFKA_TRANSACTION_STATE_LOG_NUM_PARTITIONS: 1
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📢 기능 설명
factor <= broker
일 때 kafka 작동