【Nacos】Nacos 2.2.4支持pg数据库适配改造

Nacos 2.2.4支持postgresql数据库
本文基源码：扩展插件包
网上资料都有，还是个人爬坑补充异常处理记录，以便后续升级改造有漏洞修复

下载源码

https://github.com/alibaba/nacos/releases

添加依赖

• 根pom添加pg依赖

<postgresql.version>42.5.1postgresql.version>
 
 <dependency>
      <groupId>org.postgresqlgroupId>
      <artifactId>postgresqlartifactId>
      <version>${postgresql.version}version>
dependency>

• config模块pom添加依赖

<dependency>
      <groupId>org.postgresqlgroupId>
      <artifactId>postgresqlartifactId>
dependency>

• plugin模块

/plugin/datasource/src/main/resources/META-INF/services 下增加以下数据
com.alibaba.nacos.plugin.datasource.mapper.Mapper

com.alibaba.nacos.plugin.datasource.impl.postgresql.ConfigInfoAggrMapperByPostgreSql
com.alibaba.nacos.plugin.datasource.impl.postgresql.ConfigInfoBetaMapperByPostgreSql
com.alibaba.nacos.plugin.datasource.impl.postgresql.ConfigInfoMapperByPostgreSql
com.alibaba.nacos.plugin.datasource.impl.postgresql.ConfigInfoTagMapperByPostgreSql
com.alibaba.nacos.plugin.datasource.impl.postgresql.ConfigTagsRelationMapperByPostgreSql
com.alibaba.nacos.plugin.datasource.impl.postgresql.HistoryConfigInfoMapperByPostgreSql
com.alibaba.nacos.plugin.datasource.impl.postgresql.TenantInfoMapperByPostgreSql
com.alibaba.nacos.plugin.datasource.impl.postgresql.TenantCapacityMapperByPostgreSql
com.alibaba.nacos.plugin.datasource.impl.postgresql.GroupCapacityMapperByPostgreSql

• plugin增加 postgresql文件夹

com.alibaba.nacos.plugin.datasource.impl 模块下

• plugin增加postgresql常量
  com.alibaba.nacos.plugin.datasource.constants.DataSourceConstant.java

 public static final String POSTGRESQL = "postgresql";

• 根据SPI机制进行代码扩展

ConfigInfoAggrMapperByPostgreSql
ConfigInfoBetaMapperByPostgreSql
ConfigInfoMapperByPostgreSql
ConfigInfoTagMapperByPostgreSql
ConfigTagsRelationMapperByPostgreSql
HistoryConfigInfoMapperByPostgreSql
TenantInfoMapperByPostgreSql
TenantCapacityMapperByPostgreSql
GroupCapacityMapperByPostgreSql

编译打包源码

mvn -Prelease-nacos clean package install -Dmaven.test.skip=true
mvn -Prelease-nacos -Dmaven.test.skip=true clean install -U
# mvn Failed during checkstyle execution: There are errors reported by Checkstyle
mvn -Prelease-nacos -Dmaven.test.skip=true clean install -U  -Dcheckstyle.skip

如果发现异常，单独排查处理（没有则忽略）：

发现maven构建还是失败，如下：

问题：Cannot access mirror (https://maven.aliyun.com/nexus/content/groups/public) in offline mode and the artifact org.springframework.boot:spring-boot-maven-plugin:pom:2.6.14 has not been downloaded from it before.
解决：idea中maven项目下载依赖cannot resolve的问题

最终结果：

个人取名：2.2.4.IKPOEM传入私服中使用，和外部区分开来

配置文件修改

spring.datasource.platform=postgresql
db.num=1
db.url.0=jdbc:postgresql://127.0.0.1:5432/nacos_db?currentSchema=nacos_config&reWriteBatchedInserts=true&useUnicode=true&characterEncoding=utf8&serverTimezone=Asia/Shanghai
db.user.0=postgres
db.password.0=123456
# 注意添加配置需要
db.pool.config.driverClassName=org.postgresql.Driver

jdbc:postgresql://127.0.0.1:5432/nacos_config?currentSchema=public&tcpKeepAlive=true&reWriteBatchedInserts=true

运行nacos

jar包位置，生成的jar包在nacos\distribution\target目录下

• 运行

 .\startup.cmd -m standalone

访问：http://localhost:8848/nacos nacos/nacos

运行调试

console: com.alibaba.nacos.Nacos
VM options: -Dnacos.standalone=true 单击版本

异常登记

情况说明：本人使用nacos-mysql脚本同步到pg库当中，部分表字段类型调整，自增调整为seq，还有时间问题调整等

处理序列

添加序列：tenant_info_id_seq等多个seq

CREATE SEQUENCE "nacos_config"."config_info_id_seq" 
INCREMENT 1
MINVALUE  1
MAXVALUE 9223372036854775807
START 1
CACHE 1;

SELECT setval('"nacos_config"."config_info_id_seq"', 1, false);

ALTER SEQUENCE "nacos_config"."config_info_id_seq"
OWNED BY "nacos_config"."config_info"."id";

ALTER SEQUENCE "nacos_config"."config_info_id_seq" OWNER TO "root";
-- nextval('nacos_config.config_info_id_seq'::regclass)


CREATE SEQUENCE "nacos_config"."tenant_capacity_id_seq" 
INCREMENT 1
MINVALUE  1
MAXVALUE 9223372036854775807
START 1
CACHE 1;

SELECT setval('"nacos_config"."tenant_capacity_id_seq"', 1, false);

ALTER SEQUENCE "nacos_config"."tenant_capacity_id_seq"
OWNED BY "nacos_config"."tenant_capacity"."id";

ALTER SEQUENCE "nacos_config"."tenant_capacity_id_seq" OWNER TO "root";
-- nextval('nacos_config.tenant_capacity_id_seq'::regclass)

CREATE SEQUENCE "nacos_config"."group_capacity_id_seq" 
INCREMENT 1
MINVALUE  1
MAXVALUE 9223372036854775807
START 1
CACHE 1;

SELECT setval('"nacos_config"."group_capacity_id_seq"', 1, false);

ALTER SEQUENCE "nacos_config"."group_capacity_id_seq"
OWNED BY "nacos_config"."group_capacity"."id";

ALTER SEQUENCE "nacos_config"."group_capacity_id_seq" OWNER TO "root";
-- nextval('nacos_config.group_capacity_id_seq'::regclass)


CREATE SEQUENCE "nacos_config"."his_config_info_nid_seq" 
INCREMENT 1
MINVALUE  1
MAXVALUE 9223372036854775807
START 1
CACHE 1;

SELECT setval('"nacos_config"."his_config_info_nid_seq"', 1, false);

ALTER SEQUENCE "nacos_config"."his_config_info_nid_seq"
OWNED BY "nacos_config"."his_config_info"."id";

ALTER SEQUENCE "nacos_config"."his_config_info_nid_seq" OWNER TO "root";
-- nextval('nacos_config.his_config_info_nid_seq'::regclass)

表添加nextval('nacos_config.tenant_info_id_seq'::regclass)

处理表时间

数据结构sql

pg

打包处理

Nacos Too many files with unapproved license:

[ERROR] Failed to execute goal org.apache.rat:apache-rat-plugin:0.12:check (default) on project nacos-datasource-plugin: Too many files with unapproved license: 1 See RAT report in: G:\nacos

原因：我添加了新的文档，代码路径 \plugin\datasource\target\rat.txt未知的Licenses，把新增的代码头上加上 Licenses 即可

打包私服

Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.7:deploy

报错原因：意思是在pom文件中缺少distributionManagement标签,或者缺少-DaltDeployementRepositoty,说的是缺少deploy的地址,maven不知道你想要deploy到哪里,在pom文件中增加如下信息,就发布成功了.

浏览地址

Nacos 2.2.0支持postgresql数据库
修改nacos源码编译打包
idea中maven项目下载依赖cannot resolve的问题