SpringCloudAlibaba Nacos集群改为单机版启动

谁借莪１个温暖的怀抱￠ 2023-09-26 22:12 153阅读 0赞

#### SpringCloudAlibaba Nacos集群改为单机版 ####

*   *   *  1、Nacos集群和持久化配置
         *  2、standalone单机
         *  3、cluster集群
         *  4、修改startup.cmd

#### 1、Nacos集群和持久化配置 ####

Nacos支持三种部署模式

> 1.单机模式  
> 2.集群模式 - 用于生产环境，确保高可用  
> 3.多集群模式 - 用于多数据中心场景

#### 2、standalone单机 ####

![在这里插入图片描述][1392cc415de64adf93adfe83c5b36271.png]

#### 3、cluster集群 ####

cp cluster.conf.example cluster.conf

![在这里插入图片描述][6ec84d929d434a19a3f6cce4e4886bc0.png]

> SpringCloudAlibaba  
> Nacos注册与配置中心在日常开发中会经常接触，有时候为了方便测试会在本地启动一个nacos程序，但是nacos默认是集群部署，这时候便需要做一点点修改即可在本地启动一个单机版nacos使用。

#### 4、修改startup.cmd ####

修改启动文件 startup.cmd文件里的 set MODE="cluster"为 set MODE=“standalone”  
ps：启动文件在nacos安装目录下的bin目录中

@echo off
    rem Copyright 1999-2018 Alibaba Group Holding Ltd.
    rem Licensed under the Apache License, Version 2.0 (the "License");
    rem you may not use this file except in compliance with the License.
    rem You may obtain a copy of the License at
    rem
    rem      http://www.apache.org/licenses/LICENSE-2.0
    rem
    rem Unless required by applicable law or agreed to in writing, software
    rem distributed under the License is distributed on an "AS IS" BASIS,
    rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    rem See the License for the specific language governing permissions and
    rem limitations under the License.
    if not exist "%JAVA_HOME%\bin\java.exe" echo Please set the JAVA_HOME variable in your environment, We need java(x64)! jdk8 or later is better! & EXIT /B 1
    set "JAVA=%JAVA_HOME%\bin\java.exe"
    
    setlocal enabledelayedexpansion
    
    set BASE_DIR=%~dp0
    rem added double quotation marks to avoid the issue caused by the folder names containing spaces.
    rem removed the last 5 chars(which means \bin\) to get the base DIR.
    set BASE_DIR="%BASE_DIR:~0,-5%"
    
    set CUSTOM_SEARCH_LOCATIONS=file:%BASE_DIR%/conf/
    
    set MODE="standalone"
    set FUNCTION_MODE="all"
    set SERVER=nacos-server
    set MODE_INDEX=-1
    set FUNCTION_MODE_INDEX=-1
    set SERVER_INDEX=-1
    set EMBEDDED_STORAGE_INDEX=-1
    set EMBEDDED_STORAGE=""
    
    
    set i=0
    for %%a in (%*) do (
        if "%%a" == "-m" ( set /a MODE_INDEX=!i!+1 )
        if "%%a" == "-f" ( set /a FUNCTION_MODE_INDEX=!i!+1 )
        if "%%a" == "-s" ( set /a SERVER_INDEX=!i!+1 )
        if "%%a" == "-p" ( set /a EMBEDDED_STORAGE_INDEX=!i!+1 )
        set /a i+=1
    )
    
    set i=0
    for %%a in (%*) do (
        if %MODE_INDEX% == !i! ( set MODE="%%a" )
        if %FUNCTION_MODE_INDEX% == !i! ( set FUNCTION_MODE="%%a" )
        if %SERVER_INDEX% == !i! (set SERVER="%%a")
        if %EMBEDDED_STORAGE_INDEX% == !i! (set EMBEDDED_STORAGE="%%a")
        set /a i+=1
    )
    
    rem if nacos startup mode is standalone
    if %MODE% == "standalone" (
        echo "nacos is starting with standalone"
    	  set "NACOS_OPTS=-Dnacos.standalone=true"
        set "NACOS_JVM_OPTS=-Xms512m -Xmx512m -Xmn256m"
    )
    
    rem if nacos startup mode is cluster
    if %MODE% == "cluster" (
        echo "nacos is starting with cluster"
    	  if %EMBEDDED_STORAGE% == "embedded" (
    	      set "NACOS_OPTS=-DembeddedStorage=true"
    	  )
    
        set "NACOS_JVM_OPTS=-server -Xms2g -Xmx2g -Xmn1g -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m -XX:-OmitStackTraceInFastThrow -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=%BASE_DIR%\logs\java_heapdump.hprof -XX:-UseLargePages"
    )
    
    rem set nacos's functionMode
    if %FUNCTION_MODE% == "config" (
        set "NACOS_OPTS=%NACOS_OPTS% -Dnacos.functionMode=config"
    )
    
    if %FUNCTION_MODE% == "naming" (
        set "NACOS_OPTS=%NACOS_OPTS% -Dnacos.functionMode=naming"
    )
    
    rem set nacos options
    set "NACOS_OPTS=%NACOS_OPTS% -Dloader.path=%BASE_DIR%/plugins,%BASE_DIR%/plugins/health,%BASE_DIR%/plugins/cmdb,%BASE_DIR%/plugins/selector"
    set "NACOS_OPTS=%NACOS_OPTS% -Dnacos.home=%BASE_DIR%"
    set "NACOS_OPTS=%NACOS_OPTS% -jar %BASE_DIR%\target\%SERVER%.jar"
    
    rem set nacos spring config location
    set "NACOS_CONFIG_OPTS=--spring.config.additional-location=%CUSTOM_SEARCH_LOCATIONS%"
    
    rem set nacos log4j file location
    set "NACOS_LOG4J_OPTS=--logging.config=%BASE_DIR%/conf/nacos-logback.xml"
    
    
    set COMMAND="%JAVA%" %NACOS_JVM_OPTS% %NACOS_OPTS% %NACOS_CONFIG_OPTS% %NACOS_LOG4J_OPTS% nacos.nacos %*
    
    rem start nacos command
    %COMMAND%

[1392cc415de64adf93adfe83c5b36271.png]: https://img-blog.csdnimg.cn/1392cc415de64adf93adfe83c5b36271.png
[6ec84d929d434a19a3f6cce4e4886bc0.png]: https://img-blog.csdnimg.cn/6ec84d929d434a19a3f6cce4e4886bc0.png