1.1 introduction to Dubbo
Apache Dubbo is a high-performance Java RPC framework. Its predecessor is Alibaba's open source and lightweight open source Java RPC framework, which can be seamlessly integrated with the Spring framework. In 2018, Alibaba donated this framework to the apache foundation
1.2 Dubbo architecture
dubbo consi ...
Posted by MichaelHe on Mon, 20 Sep 2021 21:35:35 +0200
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4.4 real time log analysis
Master the connection between Flume and Kafka
We have collected the log data into hadoop, but when doing real-time ana ...
Posted by pontiac007 on Thu, 18 Jun 2020 06:33:47 +0200
From https://www.jianshu.com/p/9ee887e045dd , thank you
1 Finite-state machine
1.1 definition of state machine
FSM (finite state machine, FSM), also known as FSM, is a mathematical model that represents finite states, their transitions and actions.
Finite state machine embodies two points: first ...
Posted by echoindia756 on Thu, 18 Jun 2020 05:48:33 +0200
In general, we need to do log analysis scenarios: directly in the log file, grep and awk can get the information they want. However, in large-scale scenarios, this method is inefficient, facing problems such as how to archive too much logs, how to do too slow text search, and how t ...
Posted by mschrank on Sat, 13 Jun 2020 13:10:05 +0200
Author: Little FuBlog: https://bugstack.cn
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Distributed task DcsSchedule middleware, Github address: https://github.com/fuzhengwei/schedule-spring-boot-starter
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Zookeeper is frequently used in distributed development, but many frameworks encapsulate it. Beginners may not understand its working principle well. This article demonstrates the simple demo of using zookeeper to realize service registration and service discovery, hoping to achieve th ...
Posted by anushka on Tue, 09 Jun 2020 10:05:39 +0200
Due to the high security requirements of the company where the friend is located, zabbix's network environment cannot be connected to the Internet, so it is not possible to send the alarm directly to some instant messaging tools through zabbix, which requires sending the alarm message to some middleware and forwarding it t ...
Posted by lanas on Tue, 26 May 2020 19:11:42 +0200
1. What we want to achieve
Provider: the service provider that exposes the service. I create a Module named news provider to implement it. Consumer: the service consumer that calls the remote service. I create a Module named news consumer to implement it. Registry: the Registration Center for service registration and discovery, which is imp ...
Posted by xenoalien on Wed, 06 May 2020 08:31:48 +0200
ZooKeeper is a distributed service framework and a sub project of Apache Hadoop. It is mainly used to solve some data management problems often encountered in distributed applications, such as: unified naming service, state synchronization service, cluster management, distributed application configuration item management, etc
ZooKeeper is a tr ...
Posted by ph0ngwh0ng on Thu, 16 Apr 2020 11:54:18 +0200
*Specifies that consumer reads from the earliest offset of all partitions.
*This method causes consumer to ignore any submitted offset s in Zookeeper / Kafka brokers.
*When consumer is restored from checkpoint or savepoint, this method does not work. In this case, the offset in the r ...
Posted by malec on Fri, 10 Apr 2020 13:33:32 +0200