Programmer Group

Part One Summary ELK is a log analysis platform that integrates distributed data storage, visual query and log resolution.ELK=elasticsearch+Logstash+kibana, each of which has its own duties, cooperates with each other to complete the data processing of the log.The main functions of each ELK component are as follows: elasticsearch, data storage ...

install Oracle installation command pip install orator ##Easy to use Connection operation of database config = { 'mysql': { 'driver': 'mysql', 'host': 'localhost', 'database': 'test_one', 'user': 'root', 'password': '123456', 'prefix': ...

CHAR and VARCHAR types are similar, but they are saved and retrieved in different ways. Their maximum length and whether trailing spaces are preserved are also different. There is no case conversion during storage or retrieval. Char 0-255 byte fixed length string VARCHAR 0-65535 byte variable length string Create test table mysql> c ...

When zabbix is installed suddenly recently, it always reports an error, such as: (24/27): t1lib-5.1.2-14.el7.x86_64.rpm | 166 kB 00:00:00 zabbix-web-4.4.6-1.el7.noarch. FAILED ==================================- ] 347 kB/s | 11 MB 00:00:15 ETA http://repo.zabbix. ...

An article to play with TiDB disaster recovery 1, Background High availability is another major feature of TiDB. All three components of TiDB/TiKV/PD can tolerate partial instance failure without affecting the availability of the whole cluster. The following describes the availability of these three components, the consequences of a single ...

Environmental Science linux: centos7.6 The most common server system in the company prometheus: 2.13.1.linux-amd64 Container monitoring solution for numerical data based on time series: with its own data storage and monitoring, it is the official monitoring scheme designated by k8s. node_exporter: 0.18.1.linux-amd64 Used to collect opera ...

Stored procedures are an important feature of database storage. Stored procedures were not supported by MySQL prior to version 5.0. Stored procedures can greatly improve the processing speed of the database and the flexibility of database programming.1. What is a stored procedure?Stored procedures are a collection of SQL statements that are de ...

1. Description 1.1 Material This paper uses the following materials: Docker Mirror Github Link Crack Tool Gitee Link With these tools, you can theoretically crack almost all versions. 1.2 Database If you choose an external database, you can create it as follows: # Create jira database and users CREATE DATABASE jiradb CHARACTER SET utf8mb4 ...

Dead work Because MariaDB's binary package mirroring source is at a foreign address, the package is downloaded in advance to the local physical machine and uploaded to the virtual machine/usr/local/src directory for installation using the lrzsz tool. The physical address is (click to download directly to the ph ...

Chapter 14 of SpringCloud Alibaba, upgrade, distributed transaction solution, Seata 1, Overview of distributed transactions 1. What is distributed transaction With the rapid development of the Internet, the software system has changed from the original single application to the distributed application. The distributed system will split an appli ...