Kafka advanced features, controller, consumer group partition rebalancing, partition and replica restoration and reconfiguration, log cleaning, transactions, idempotency and more

MyISAM only supports table locking, but the online article said that when the number of concurrent inserts is relatively large, it is more suitable to use MyISAM. Is this contradictory? This question, involving some details of MySQL table lock, through this question, systematically said

String is a very common class source code analysis problem: I am now preparing to construct a String object, so where does the object original come from? When was it constructed?

Redis has high performance because all reads and writes are done in memory. When the server is disconnected or restarted, the data will disappear. Redis already provides two persistence methods: RDB and AOF.

Nacos: Naming, Configuration, and Service. Nacos does service registration and configuration. Configuration changes can also be notified dynamically to clients. So N

When Feign is used in Spring Cloud microservice development, the problem of token relay needs to be dealt with. Only token relay can ensure the transmission of user authentication information in the call chain, and realize the implicit transmission of user authentication information in service A to service B through Feign.

We know that the governance of microservices can be realized through registries such as Nacos. But with the introduction of Nacos, is it really the ideal that all services are managed perfectly by Nacos? Too young, Too simple! Today's article is about

In a Redis cluster, several Redis servers are assigned to replicate another Redis server, so the server to be replicated is defined as the master server, while the server to replicate the master server is called the slave server.

This paper introduces the HTTP version evolution roadmap, detailed description of HTTP1.1 long connection, and the resulting HOLB queue congestion problem, HTTP2.0 protocol stack, binary frame, multiplexing, server push and other features

Recently, I encountered some problems about collection replication in the development. Ordinary collection replication just makes a quick copy of the stack address in memory, so that a new collection object points to the address block, but the object variable in the collection points to the same block in the heap. So when the copied collection modifies the data in the collection object, the source collection object also changes. This effect is called Java collection versus...