Using Logstash to synchronize Mysql and ElasticSearch data

Preface This article is used to record an operation of synchronizing Mysql data to ElasticSearch in case of forgetting The concept of incremental synchronization Logstash has its own timing task. By default, it moves data from Mysql to ElasticSearch every minute. However, the amount of data in MySQL ...

Posted on Sun, 26 Jan 2020 00:31:09 -0800 by ekalath

Find nearby network point geohash algorithm and implementation (PHP version)

Gehash has the following characteristics: First, geohash uses a string to represent the longitude and latitude coordinates.In some cases, it is not possible to apply an index on both columns at the same time (for example, previous versions of MySQL 4, the data tier of Google App Engine, etc.). With geohash, you can simply apply an index on one ...

Posted on Sat, 25 Jan 2020 08:16:57 -0800 by brainstorm

go microservice framework kratos learning note seven (kratos ward load balancing balancer)

go microservice framework kratos learning note seven (kratos ward load balancing balancer) Article directory go microservice framework kratos learning note seven (kratos ward load balancing balancer) demo demo server demo client pool dao service p2c roundrobin grpc official load balancing workfl ...

Posted on Sun, 19 Jan 2020 05:03:57 -0800 by penguinboy

More elegant use of limit (the effect of limit on the performance of mysql data query)

More elegant use of limit (the effect of limit on the performance of mysql data query) This paper re typesetting based on zhangyachen Source: zhangyachen https://github.com/zhangyachen/zhangyachen.github.io/issues/117 I. Preface First of all, explain the MySQL version: mysql> select version() ...

Posted on Sun, 19 Jan 2020 01:44:13 -0800 by lynncrystal

[probably the best in the whole network] summary notes of MySQL advanced introduction

view Meaning: MySQL started from version 5.0.1. It is a virtual existing table. The data of rows and columns comes from the tables used in the query defining the view. It is generated dynamically when using the view. Only the sql logic is saved, and the query results are not saved. Application scenari ...

Posted on Sat, 18 Jan 2020 23:00:45 -0800 by monk.e.boy

PHP member overloading and actual combat

1, Static member Application scenario: 1. If an object is only used once, is it necessary to create an object? Isn't it more convenient to treat a class as an object directly2. If multiple objects need to share some properties and methods, but they must be called by independent objects, and they can ...

Posted on Sat, 18 Jan 2020 20:21:28 -0800 by sprint10s

About the Use and Configuration of Log4Net

0. Introduction The Log4Net library is an implementation of the Apache log4j framework under the.NET platform and is open source and free of charge.It can output logs to different media in different formats and levels. Official address: http://logging.apache.org/log4net/index.html Log4Net open so ...

Posted on Fri, 17 Jan 2020 18:08:39 -0800 by coffejor

Basic use of 02mybatis

1. Create the resource folder config under the web directory, add the log4j.properties and SqlMapConfig.xml configuration files 2. Create log4j.properties under config as follows:   # Global logging configuration log4j.rootLogger=DEBUG, stdout # Console output... log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.ap ...

Posted on Thu, 16 Jan 2020 10:17:37 -0800 by mrjiggyhill

Getting started with sharingsphere

Article directory Getting started with sharingsphere About sharing sphere Solemnly declare Using java as an example Engineering structure (single overall structure) SQL script configuration file Code test New data Query according to sub base rules Query according to table splitting rules Query b ...

Posted on Thu, 16 Jan 2020 07:07:25 -0800 by zeropaid

store (mall project) Springboot+springmvc+ajax+mybatis

37. Provincial and urban area - acquisition list - controller layer For requests to be processed: Request path / districts/ Request parameter: String parent Request method: GET Response results: jsonresult < list < District > > Block: No, you can access without login Because there i ...

Posted on Wed, 15 Jan 2020 05:01:07 -0800 by PRodgers4284