What is Heap Dump? A Heap Dump is a snapshot of the memory situation that is used by a Java process at a certain time. That is to put Java into a certain time.

In normal development, testing process and even production environment, OutOfMemoryError and Java heap sometimes overflow, which indicates that there are serious problems in the program. We need to find the inside.

At work, we need to configure Nginx, put it into production and use it, do a little bit of optimization work, and often do Nginx before, so we can note some optimization work. Optimize the number of Nginx processes.

Taking notes, you need to do a lot of verifying testing work, especially the script test of ansible, changing a test machine, and repeatedly installing Vagrant, so you have to write down this text.

Sometimes, we need to do some software installation tests. It is not very good to do it directly on the server. So we need to test it in a simulated environment first. The simulation environment here is the same as the online environment, such as the system.

The index of indexElasticsearch is similar to the library in relational database, and index is the unit of data storage. But in fact, this is only a procedural perspective.

In the process of learning Consul, you encounter the part of DNS interface, take this opportunity to learn a wave of dig command and write down the following contents. Dig, and NSLOOKUP...

What is Consul? Consul has multiple components, but on the whole, it is a tool for discovering and configuring services in your infrastructure. It provides the following key functions: Service Discovery: Co...

If you do not know enough about TensorFlow.js, you can turn right: here. Here are some of the core concepts of TensorFlow.js. Because now Tenso...

TensorFlow.js, which is an open source library, can be defined in the browser using JavaScript and advanced layer API, and training and running a complete machine learning model. If you...

Two ways to install Elasticsearch are introduced: installation of JAVA SDK, configuration of Elasticsearch source, installation of Elasticsearch, etc.

Before you see it, you can click on the two articles: Webpack summary of best practices (1), Webpack summary of best practices (two), OK, this is third, it is also finished, I feel...