Message Broker

Kafka

1. used as key value but stored as binary in kafka
2. default port
3. serialisation and deserialization
4. pros and cons
5. Kafka cluster
   1. Fault Tolerance
   2. Scalability
   3. Distributed Processing
6. Kafka Broker
   1. topics
      1. compacted topics
   2. partitions
      1. leader
      2. follower
      3. replication
         1. replication factor
         2. key
   3. segments
7. Producer
   1. record
      1. header
      2. key
      3. value
      4. timestamp
   2. retention period
   3. ack /nack
      1. no acks
      2. leader acks
      3. all acks
8. Consumer
   1. Queue vs Pub Sub
   2. Consumer group
9. Offset
10. Connectors
11. At most once
12. At least once
13. Exactly once
14. Exactly-Once Semantics
    1. Idempotent
    2. Two-Phase Commit
    3. alt
15. Persistent storage
16. Steam processing
17. Distributed system
    1. leader
    2. follower
    3. zoo keeper
       1. Metadata Management
       2. Leader Election
       3. Synchronisation
       4. Heartbeats and Timeouts
       5. Monitoring
       6. default port
       7. gossip
18. long polling
19. Kafka Connect

RabbitMQ

1. TCP
2. HTTPv2
3. AMQP
4. RabbitMQ server
   1. default port
   2. Exchange Queues
5. Heartbeats
6. Connection pool
7. Channels
   1. Multiplexing
   2. Concurrency
8. Message TTL
9. Message Acknowledgment
   1. Strategies
   2. Automatic Acknowledgment (Ack)
   3. Positive Acknowledgment
   4. Negative Acknowledgment (Nack)
   5. Rejection with Requeue
   6. Rejection without Requeue
10. Exchanges
    1. Fanout exchange
       1. pros and cons
       2. uses
    2. Direct exchange
       1. pros and cons
       2. uses
    3. Header exchange
       1. pros and cons
       2. uses
    4. Topics exchange
       1. pros and cons
       2. uses
    5. Dead Letter Exchanges and Queues
11. Polyglot persistence
12. Durability
    1. Durable Queues
    2. Persistence message
    3. Combined Durability
    4. rabbitMQ
13. Routing Key
14. Request response
    1. architecture
    2. breaks
    3. pros and cons
15. Publish subscribe (pub/sub) model
    1. Queue/Channels/Topics
    2. Publisher/producer
    3. Consumer
    4. pros and cons
16. Multiplexing
17. Channel
18. Push model

gRPC

1. why?
2. http
3. protobuffer
4. Unary gRPC
5. Server streaming
6. Client streaming
7. Bidirectional