Ansible automatic operation and maintenance learning 5: detailed explanation and optimization of ansible configuration file
1, Details of common parametersThis paper is about https://blog.51cto.com/8355320/2471354 The parameter configuration of is extended.The default configuration file of ansible is / etc/ansible/ansible.cfg. Parameters of ansible can be adjusted in the configuration file, including concurrent thread, user, module path, configuration optimization, ...
Posted by hopelessX on Fri, 20 Mar 2020 04:29:59 -0700
Redis database introduction and manual compilation and installation process
Preface
This paper introduces Redis database from the origin of NoSQL, then demonstrates the process of Redis manual compilation and installation (the system version of the experimental environment is Centos7), and finally introduces the common command tools of Redis.
What is NoSQL?
NoSQL -- non relational SQL, non relational database. The st ...
Posted by ramzess on Fri, 20 Mar 2020 04:20:20 -0700
Docker compose deploy jumpserver fortress machine
1, Environment deployment
1. Build docker environment
yum -y install docker
2. Install docker compose
curl -L https://github.com/docker/compose/releases/download/1.23.2/docker-compose-`uname -s`-`uname -m` -o /usr/bin/docker-compose
chmod +x /usr/bin/docker-compose
3. Create project directory
mkdir -p /data/jms
cd /data/jms
4. Download the doc ...
Posted by efron on Tue, 17 Mar 2020 11:02:24 -0700
Latest puppeter crawler boss direct recruitment company and position information
The missing are back! Since I have been crawling, I have encountered many pits, so I will give a general report first
1. Access to all enterprises in the country
2. Supplement enterprise information through enterprise inspection
3. Direct employment of reptile boss to obtain company and position i ...
Posted by huzefahusain on Tue, 17 Mar 2020 03:15:31 -0700
redis source code analysis v1.0
Section I. references
https://www.cnblogs.com/davidwang456/articles/9294912.html
https://blog.csdn.net/BigRat_WH/article/details/88640793
https://blog.csdn.net/u011577874/article/details/73000207
https://www.cnblogs.com/gjc592/p/11098047.html
First of all, the source code of redis is elegant and bea ...
Posted by hungryOrb on Mon, 16 Mar 2020 23:54:32 -0700
Scrapy self built IP proxy pool
This blog will realize Worry free agent and National Agency To access and save to Redis database.
The anti crawling measures of worry free agent mainly lie in the inconsistency between the port of the page and the port number of the source code. The reason for the inconsistency is that there is js ...
Posted by kneifelspy on Mon, 16 Mar 2020 06:53:05 -0700
Redis distributed lock implementation and error case analysis
Recently, I looked at the knowledge of distributed locks. They are still used more in practice, because in the case of high concurrency, if they are not suitable for distributed locks, the data will definitely have problems, such as the problem of seconds killing commodity inventory in e-commerce pla ...
Posted by friendlylad on Mon, 16 Mar 2020 00:45:52 -0700
Spring Boot 1.5 learn 10 -- Spring Boot caching technology (spring data redis)
1. Integration steps
1.1 introduction of springdataredis starter
<!-- Spring Data Redis Starter -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
1.2 write the configu ...
Posted by kelseyirene on Sun, 15 Mar 2020 01:57:24 -0700
Installing php extension in docker
Some extensions of php
Using the keyword docker PHP ext install directly in the Dockerfile file
RUN docker-php-ext-install -j$(nproc) iconv \
&& docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
&& docker-php-ext-install -j$(nproc) ...
Posted by Tristan Wells on Sat, 14 Mar 2020 23:41:05 -0700
redis highly available cluster
1. Preface
Redis is the largest cache middleware we use today, and it is widely used because of its powerful, efficient and convenient features.Redis released 3.0.0 in 2015, officially supporting redis clusters.This brings an end to the era of redis without clusters, which used to be Twemproxy published by twitter and codis developed by pea po ...
Posted by snarkiest on Sat, 14 Mar 2020 13:18:07 -0700