YANGLiiN yangl

分布式Id生成器

实现动机

传统数据库软件开发中，主键自动生成技术是基本需求。而各大数据库对于该需求也提供了相应的支持，比如MySQL的自增键。对于MySQL而言，分库分表之后，不同表生成全局唯一的Id是非常棘手的问题。因为同一个逻辑表内的不同实际表之间的自增键是无法互相感知的，这样会造成重复Id的生成。我们当然可以通过约束表生成键的规则来达到数据的不重复，但是这需要引入额外的运维力量来解决重复性问题，并使框架缺乏扩展性。

目前有许多第三方解决方案可以完美解决这个问题，比如UUID等依靠特定算法自生成不重复键，或者通过引入Id生成服务等。但也正因为这种多样性导致了Sharding-JDBC如果强依赖于任何一种方案就会限制其自身的发展。

1.快速安装docker:

参见daocloud http://get.daocloud.io/#install-docker

curl -sSL https://get.daocloud.io/docker | sh

	import java.util.List;

	import org.springframework.context.annotation.Bean;

	import com.google.common.collect.Lists;

	import springfox.documentation.builders.ApiInfoBuilder;
	import springfox.documentation.builders.ParameterBuilder;
	import springfox.documentation.schema.ModelRef;
	import springfox.documentation.service.ApiInfo;

	<dependency>
	<groupId>com.baomidou</groupId>
	<artifactId>mybatis-plus</artifactId>
	<version>2.0.1</version>
	</dependency>

	<plugin>
	<groupId>com.baomidou</groupId>
	<artifactId>mybatisplus-maven-plugin</artifactId>
	<version>1.0</version>


	notification sdk.otps.connrate.uxin.ding60 {
	get = http://192.168.0.3:5000/ding?secret=fskd2endprx&phone=13751744327\|18928495951\|13736157898\|18618324918\|18576761242\|13428967565\|13428967565\|18676663045\|18673390570\|15202240237\|15118845510\|15013718265&content=【有信接通率低于60%预警】有信品牌接通率低于60%
	}

	notification sdk.otps.connrate.uxin.mail60 {
	email = [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected]
	}

	template sdk.otps.connrate.uxin {

	elasticsearch相关

	1.安装
	http://www.cnblogs.com/jstarseven/p/6803054.html
	https://www.elastic.co/guide/en/elasticsearch/reference/current/zip-targz.html

	重要参数详见：https://www.elastic.co/guide/en/elasticsearch/reference/current/important-settings.html

	2.常用插件

	########### These MUST be filled in for a storm configuration
	storm.zookeeper.servers:
	- "10.10.74.41"
	- "10.10.74.42"
	- "10.10.74.43"

	storm.zookeeper.root: "/jstorm"

	cluster.name: "jstorm-uxin"

	数据如下：
	[2017-05-17 00:00:08.338] [INFO] [http-bio-8021-exec-104] [applog] [250] --validateAuthCode接口调用2,请求参数{"appId":"lancai","authCode":"ccfc95551640493406b04089e4b14e04","sign":"30573840a34733457d081551f5180a44ce45f515","sn":"9d5f890fb4509ab889d78f5dd27ec64d","timestamp":"1494950408309"},返回值{"data":{"openid":"17402156017","token":"BAAAAVwR_PCNAAAABwAAAAUAAAAGAAAABA0_0_FhbmRyb2lkNi4wLjNsYW5jYWk="},"msg":"成功","status":0}--
	[2017-05-17 00:00:45.898] [INFO] [http-bio-8021-exec-142] [applog] [250] --validateAuthCode接口调用2,请求参数{"appId":"lancai","authCode":"6bd53c1f7cf3b8fdf6cacff2f6b8dc42","sign":"63184218432f46d5974fb783b6d8ae0efe165126","sn":"c63f174ce714b86471a547c6926a614f","timestamp":"1494950445876"},返回值{"data":{"openid":"17208560624","token":"BAAAAVwR_YNFAAAABgAAAAUAAAAGAAAABAG1y_BpcGhvbmU2LjAuNWxhbmNhaQ=="},"msg":"成功","status":0}--
	[2017-05-17 00:01:02.986] [INFO] [http-bio-8021-exec-150] [applog] [250] --validateAuthCode接口调用2,请求参数{"appId":"lancai","authCode":"ce2caaa7013537c11fdc6a4aa01b08d3","sign":"d1255

	1.JVM参数中添加-XX:+UnlockCommercialFeatures -XX:+FlightRecorder启用jmc,
	然后打开jmx（-Dcom.sun.management.jmxremote.port=1099 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false）即可；

	2.到JAVA_HOME/bin/下打开jmc客户端即可；

	3.填写jmx地址连接；

	package com.xxx.conf;

	import com.baidu.disconf.client.common.annotations.DisconfFile;
	import com.baidu.disconf.client.common.annotations.DisconfUpdateService;
	import com.baidu.disconf.client.common.update.IDisconfUpdate;
	import java.net.URISyntaxException;
	import java.net.URL;
	import org.apache.logging.log4j.LogManager;
	import org.apache.logging.log4j.core.LoggerContext;
	import org.springframework.beans.factory.InitializingBean;

YANGLiiN yangl

分布式Id生成器

实现动机

1.快速安装docker:

2.启动docker: