Programming VIP

Article directory 1, Introduction to Oozie framework 2, Main functions of Oozie 3, Oozie internal analysis 4, Horizontal and vertical scalability of Oozie 5, The Action execution model of Oozie 1, Introduction to Oozie framework Definition of Oozie: tamer An open source framework based on workfl ...

Explain (1) JDK version: 1.8 (2)Spring Boot 2.0.6 (3)Spring Security 5.0.9 (4)Spring Data JPA 2.0.11.RELEASE (5)hibernate5.2.17.Final (6)hsqldb2.4.1   1, Identity authentication and role authorization based on memory database 1.1 add dependency Add the dependency of SpringData JPA and hsqld ...

redis-benchmark -t set,lpush -n 100000 -q SET: 38550.50 requests per second //Processing 38000 set requests per second LPUSH: 37821.48 requests per second //Process 37000 lpush requests per second ### Script execution times redis-benchmark -n 100000 -q script load"redis.call('set','foo','bar')" script loadredis.call('set','foo','bar'): 3705 ...

Author: Lu Lu Those who love technology and are willing to share are mainly engaged in the research of database related technology. Source: original contribution *Aikesheng is produced by the open source community. The original content cannot be used without authorization. Please contact the editor for reprint and indicate the source. 1. o ...

The purpose of this article is to introduce how to upgrade GaussDB stand-alone database from 1.0.0 to 1.0.2. Single machine supports automatic upgrade of small version and binary upgrade. For automatic upgrade, only one upgrade command needs to be executed on the node. 1. Upload package and decompress Upload the following two packages to the s ...

MySQL - group replication 1. Group replication model 2. Group replication principle 3. Realize group replication 1. Group replication model Group replication model MySQL group replication is a new function introduced in MySQL 5.7.17, which realizes high availability mainly from replication. It ...

Chapter II Contents: Using django to send mail Create forms and process them in views Create form from model Consolidate third-party applications Building a complex QuerySet 2.1 sharing posts by email For the mail sending function of a post, you need to do the following: Create user form, fill in nam ...

Article directory 1, About sift 2, sift algorithm principle 1. characteristics 2. Solvable problems 3. Algorithm decomposition 4. disadvantages Three. Experiment 1.SIFT feature extraction and display feature points 3.1.1 code implementation 3.1.2 result display 2.SIFT feature matching 3.2.1 cod ...

web 1.web2 Check the source code, Firefox f12, viewer. 2. calculator f12 viewer, find the following line: <input type="text" class="input" maxlength="1"> Change maxlength to the number of digit ratio results, and you can enter it. 3.web foundation $ This is really the foundation. When get reques ...

Continued on the problem of Canal dynamicTopic Recently, I set up a set of canal in a new company. I set canal.mq.topic and canal.mq.dynamicTopic according to < < dynamictopic question > > The intention is to send some messages that do not match the dynamic topic matching statements to a d ...