The generation and structure of boot.img in Android source code analysis

I. Introduction As I mentioned earlier, boot.img is not a common file image, but a special Android custom format. It consists of the file header information boot header, compressed kernel, file system data ramdisk and second stage loader (optional). The non page alignment part between them is filled w ...

Posted on Wed, 15 Jan 2020 03:11:11 -0500 by John Rowe

Metricbeat monitors the CPU utilization and memory usage of the container, sends it to ElasticSearch and displays it in kibana

Introduction: Metricbeat is a lightweight shipper. You can install it on the server, collect indicators from the operating system and services running on the server on a regular basis. Metricbeat obtains the indicators and statistics it collects and sends them to the output you specify, such as Elas ...

Posted on Tue, 14 Jan 2020 03:18:19 -0500 by kida462

JUnit 5 and Selenium Foundation

Using Selenium's built-in PageFactory to implement page object mode In this section, the implementation of the Page Object pattern is introduced through Selenium's built-in PageFactory support class. PageFactory provides a mechanism to initialize any Page Object that declares a WebElement or a list < WebElement > field with the @ FindBy ...

Posted on Mon, 13 Jan 2020 23:56:44 -0500 by serial

Transplantation of ARM-ZYNQ platform of Qt5.8 and touch Tslib-1.4 Library

This section mainly introduces the compilation and migration of Tslib-1.4 library, the next section mainly introduces the migration of Qt5.8, and the docking of Qt5.8 and Tslib-1.4 to realize the touch function on Qt; 1, Development environment and tools PC system: Linux version 4.10.0-38-generic (built ...

Posted on Mon, 13 Jan 2020 22:45:15 -0500 by irishpeck

Docker Compose container arrangement

This chapter summarizes the points of knowledge: Docker Compose container arrangementBuilding an Autodiscover Docker Service ArchitectureImplement container services to automatically join the Nginx cluster **Docker Compose Container Layout Function** Docker compose, predecessor of Fig, is a tool for defining and running multiple docker conta ...

Posted on Mon, 13 Jan 2020 19:18:17 -0500 by Topshed

redis persistence problem handling

This is a recent problem encountered in development because redis is frequently used as an intermediate query operation, suddenly fails, the service aborts, and an exception is thrown 2020-01-09 09:34:17.848 ERROR 25703 --- [ XNIO-2 task-83] o.z.p.spring.web.advice.AdviceTrait : Internal Server Error org.springframework.data.redis.RedisS ...

Posted on Mon, 13 Jan 2020 15:16:22 -0500 by ubersmuck

Linux Installation and management program

Bowen catalogue 1, RPM package management tools 2, Install, upgrade, and uninstall RPM software 3, Linux Application Foundation 4, Source code compilation and installation 1, RPM package management tools RPM Pachage Manager is proposed by Red Hat and adopted by many Linux distributions. Establish a unified database file, record the change in ...

Posted on Sun, 12 Jan 2020 22:11:04 -0500 by aznkidzx

Docker Compose container choreography + Consul cluster

1, Docker Compose container orchestration 1. Docker Compose, formerly known as Fig, is a tool for defining and running multiple docker containers;2. Using Docker Compose no longer requires using shell scripts to start containers;3. Docker Compose is very suitable for scenarios where multiple containers are combined for development.4. File stru ...

Posted on Sun, 12 Jan 2020 21:26:18 -0500 by willfitch

Chapter 18 - Analysis takes you through helm3 efk - fluentd with ease

This series of articles: Chapter 1: Nine analysis takes you through helm3 installation easily Chapter II: Nine analyses take you through the helm3 public warehouse easily Chapter III: Nine analyses take you through the helm3 private warehouse easily Chapter IV: Nine analysis takes you through helm3 chart easily Chapter V: Nine analysis takes ...

Posted on Sun, 12 Jan 2020 11:32:20 -0500 by getmukesh

Nginx log analysis script

Operation and maintenance work is a complex work. Sometimes, in the face of tens of thousands of logs, how to analyze them? Is it an analysis of one by one?Smart people will choose scripts. That's why we advocate automatic operation and maintenance now. I don't need to talk much about nonsense, just go to scripts. vim /data/scripts/log_analy ...

Posted on Sun, 12 Jan 2020 09:42:25 -0500 by jllydgnt