Get Huawei Java post offer in 5 days, and the latest java written test questions in 2021

I think The most efficient way is to read the core source code , Let’s take a look at one ?Kafka chart ? as well as ?Kafka Source panorama

Sort out about ?Kafka frame , Find the focus of learning .

front 5 The chapters are ：Kafka brief introduction 、Kafka The architecture of 、Broker summary 、Broker Basic module of 、Broker Control management module of

• ** The first 1 Chapter Kafka brief introduction ：** Introduce Kafka Birth background 、Kafka stay LinkedIn Internal applications 、Kafka The main design objectives of and why to use message system

• ** The first 2 Chapter Kafka The architecture of ：** Introduce Kafka Basic composition of 、 Topology and its internal communication protocol

• ** The first 3 Chapter Broker summary ：** describe Kafka The basic elements of a cluster Broker Server Start up and internal module composition

• ** The first 4 Chapter Broker Basic module of ：** describe Broker Server Internal nine basic modules : SocketServer 、KafkaRequestHandlerPool 、LogManager、ReplicaManager 、OffsetManager、KafkaScheduler. KafkaApis 、KafkaHalthcheck and TopicConfigManager

• ** The first 5 Chapter Broker Control management module of ：** Introduce BrokerServer Control management module of KafkaController, This module is responsible for the whole Kafka Cluster management , for example :Topic New and deleted . Transition between partition state and replica state 、 Cluster load balancing management, etc

after 5 The chapters are Topic Management tools 、 producer 、 consumer 、Kafka Typical application of 、Kafka A comprehensive case of

• ** The first 6 Chapter Topic Management tools ：** Introduce three maintenance scripts : kafka-topics.sh 、kafka-reassign-partitions.sh and kafka preferredreplica-election.sh, They relate to Topic Life cycle management of 、Topic Reassignment of partitions and selection of preferred copies of partitions .

• ** The first 7 Chapter producer ：** From the design principle 、 Sample code 、 The four parts of module composition and sending mode introduce the relevant knowledge of message producers , From design principles to client Programming , From client programming to internal implementation principle , From shallow to deep , Step by step .

• ** The first 8 Chapter consumer ：** Introduce two kinds of consumers : Simple consumers and advanced consumers . For each kind of consumer, we will start from the design principles 、 Consumer processes 、 The four parts of sample code and principle analysis introduce the relevant knowledge of consumers .

• ** The first 9 Chapter Kafka Typical application of ：** Introduce Kafka Integration with typical big data systems , Include : Kafka and Storm Integration of 、Kafka and ELK Integration of 、Kafka and Hadoop Integration and Kafka and Spark Integration of .

• ** The first 10 Chapter Kafka A comprehensive case of ：** A comprehensive example is used to describe Kafka Application , Case description Kafka As the role of data bus in the overall security solution , Through the storage of vehicle face image data 、 Storage of video data 、 Monitoring of data delay 、 Data quality monitoring 、 Control statistics and disaster recovery backup 6 One business , Briefly describe the internal implementation principle .

1. Kafka What is the design of ？

2. What are the three definitions of data transmission ？

3. Kafka There are two conditions for judging whether a node is still alive ？

4. producer Whether to send data directly to broker Of leader( Master node )？

5. Kafa consumer Whether the specified partition message can be consumed ？

6. Kafka The message is to adopt Pull Pattern , still Push Pattern ？

7. Kafka What is the message format stored on the hard disk ？

8. Kafka Design features of efficient file storage

9. Kafka There are three key differences with traditional messaging systems

10. Kafka establish Topic How to place the partition in different Broker in

11. Kafka Under which directory will the new partition be created

12. partition How to save the data to the hard disk

13. kafka Of ack Mechanism

14. Kafka How consumers consume data

15. Consumer load balancing strategy

16. Data order

17. kafaka Data grouping strategy when producing data

Kafka Advanced knowledge points （12）

44 individual Kafka Knowledge point （ Basics + Advanced + senior ） The analysis is as follows

Golden three silver four will be here soon , I hope you can learn these technical points well

Learning video ：

The real interview question of Dachang ：

This article has been CODING Open source project ：【 A big factory Java Analysis of interview questions + Core summary learning notes + The latest explanation video + Actual project source code 】 Included