Tag：State machine
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Time：2021-12-1
Author: Pig toothed fish technical team In R & D projects, teams often usebulletin boardManage the life cycle of tasks, and the Kanban task flow of different teams is different. Through practice, we have collected the needs of different teams for Kanban management: The project manager expects to know the overall work of the team […]
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Time：2021-11-16
This series of articles is mainly aimed at tikv community developers, focusing on tikv system architecture, source code structure and process analysis. The purpose is to enable developers to have a preliminary understanding of the tikv project and better participate in the development of tikv. This article is the fifth chapter of this series. Author: […]
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Time：2021-11-4
Dandelion · Jerry Technical Journal Vol.44 Life is endless and learning is the consistent pursuit of many people. Although knowledge is inexhaustible in many fields, every small change can make them go further. As Li Sao said, “I make the Phoenix soar day and night”, and each time I flap my wings, I can fly […]
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Time：2021-10-20
Update log Support for Postgres Add dtmgrpc independent package and examples Refactor the default docker compose configuration for faster startup Go distributed transaction management service DTM is the first cross language distributed transaction manager developed by golang, which elegantly solves the distributed transaction problems such as idempotent, null compensation and suspension. It provides a simple, […]
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Time：2021-9-12
Online timing flow chart making tool Online timing flow chart making tool Sequence diagram, also known as sequence diagram and sequence diagram, is a UML interaction diagram. It shows the dynamic cooperation among multiple objects by describing the chronological order of messages sent between objects. It can represent the behavior sequence of use cases. When […]
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Time：2021-9-10
When it comes to state mode, as the name suggests, it should be a state related design mode. However, we are the same as before. First, no matter what the state mode is, let’s start with a small example to see what problems the state mode can solve for us. Example Now we need to […]
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Time：2021-9-3
What is a state machine State machines are everywhere, such as TCP, HTTP, regexp and so on, which are essentially state machines. A state machine consists of States and transitions between states. Take the traffic light as a simple example. The traffic light will be in three states: red, green and yellow. There are definite […]
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Time：2021-7-24
Introduction: order status flow is the core work of the transaction system. The order system often has the characteristics of multiple states, long links and complex logic, as well as business characteristics such as multiple scenarios, multiple types and multiple business dimensions. On the premise of ensuring the stability of order status flow, scalability and […]
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Time：2021-7-12
At the beginning of C + + network programming, we will learn some basic API or the implementation of reflow server, chat room and simple HTTP server in books. After learning the above foundation, most of the kids want to do a decent project, but it seems that they don’t know how to start, or […]
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Time：2021-6-27
1、 Introduction of raft algorithm Raft is a “consensus” algorithm. Consensus means to ensure that all participants have the same cognition, which is simply how to achieve strong consistency. “Consensus” includes two aspects: between servers and between clients and servers 1. Between servers It means that all servers need to reach a “consensus”. For example, […]
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Time：2021-6-24
1、 Log storage The storage contents of each log are as follows: Term: the term of a leader Application operation content: the request sent by the client and the command to be executed by the replicated state machine. The above is a kV system. Each operation is the content of a key. 2、 Log status […]
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Time：2021-6-23
1、 What is a snapshot Snapshot is the simplest compression method. In the snapshot, all the current system states are written to the snapshot and stored in persistent storage, and then all the logs before that time can be discarded. For example, in a kV system like redis, the current state of the system is […]
