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Kafka - Coggle Diagram
Kafka
Common Use Cases
Event-driven microservices
Example → e-commerce order flow (Amazon)
Log aggregation
Example → LinkedIn service logs to Elasticsearch
Real-time analytics
Example → Uber location + surge pricing
Data integration / ETL
Example → Airbnb MySQL → Snowflake pipeline
Metrics + monitoring
Example → Netflix service health metrics
System decoupling
Example → bank payment system → downstream services
Event sourcing / audit trails
Example → GitHub repository event logs
Core Concepts
Producer → sends messages to Kafka
Consumer → reads messages from Kafka
Broker → Kafka server that stores data
Topic → channel where messages are published
Partition → parallel lanes inside a topic
Offset → message position in a partition
Key Features
High throughput
Durability (persistent storage)
Scalability (horizontal scaling)
Fault tolerance (replication)
Real-time processing
Operational Challenges
Choosing partitions + replication
Handling consumer group offsets
Managing retention + compaction
Monitoring + alerting
Ecosystem Tools
Kafka Connect → data integration
Kafka Streams → real-time stream processing
Schema Registry → manage message schemas
Popular Alternatives
RabbitMQ
Pulsar
Kinesis (AWS)