• 搭建nacos集群

    安装jdk1.8

    jdk为1.8的jdk-8u171-linux-x64.tar.gz版本先去orcle注册下载，上传到服务器
    1.解压缩

    tar -zxvf jdk-8u171-linux-x64.tar.gz;

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    2.目录下新建一个java文件夹

    mkdir /usr/local/java;

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    3.把解压的文件移动到新增的这个文件夹中

    mv jdk1.8.0_171/ /usr/local/java;

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    4.修改配置文件，添加环境变量，通过命令。vim /etc/profile在文件末尾添加一下内容

    export JAVA_HOME=/usr/local/java/jdk1.8.0_171
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib:$CLASSPATH
export JAVA_PATH=${JAVA_HOME}/bin:${JRE_HOME}/bin
export PATH=$PATH:${JAVA_PATH}

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    5.让profile文件生效

    source /etc/profile

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    安装maven

    先下载maven依赖包上传到服务器，版本为3.8.6，maven下载地址
    1.创建目录并解压

    mkdir /usr/local/maven
tar -zxvf apache-maven-3.8.6-bin.tar.gz
mv ./apache-maven-3.8.6/* /usr/local/maven/
rm -rf ./apache-maven-3.8.6

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    2.配置环境变量 vim /etc/profile,在最下面添加如下

    MAVEN_HOME=/usr/local/maven
export PATH=${MAVEN_HOME}/bin:${PATH}

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    3.生效

    source /etc/profile

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    4.修改setting文件，配置阿里云仓库地址

    vim /usr/local/maven/conf/settings.xml

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    将文件中的标签内容替换成下面内容

    <mirror>
      <id>alimaven</id>
      <name>aliyun maven</name>
      <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
      <mirrorOf>central</mirrorOf>
 </mirror> 

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    下载nacos安装文件

    lz这里安装的是1.1.4版本，下载地址
    在这里插入图片描述

    解压安装

    上传到服务器后解压安装
    1.上传文件到服务器，解压安装

    mkdir /usr/local/nacos/
tar -zxvf nacos-server-1.1.4.tar.gz
mv ./nacos/* /usr/local/nacos/
rm -rf ./nacos

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    2.配置conf目录下的cluster.conf文件，每行配置成ip:port。IP通过hostname -i获取，不要使用127.0.0.1或者localhost

    cd /usr/local/nacos/conf
cp cluster.conf.example cluster.conf

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    编辑cluster.conf文件vim cluster.conf,把里面的内容替换成如下，lz的ip为192.168.254.5，根据自身情况配置

    192.168.254.5:3333
192.168.254.5:4444
192.168.254.5:5555

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    3.初始化 MySQL 数据库，修改application.properties配置文件
    搭建MySQL5.7版本数据库，使用Navicat创建名称为nacos_config数据库，执行nacos的conf目录下的nacos-mysql.sql文件，这里就不做演示
    在这里插入图片描述
    在这里插入图片描述
    编辑application.properties文件vim application.properties，在文件最下面添加如下配置

    spring.datasource.platform=mysql

db.num=1
db.url.0=jdbc:mysql://192.168.17.22:3307/nacos_config?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true
db.user=root
db.password=123456

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    修改bin目录下的startup.sh文件

    先备份sh文件，再进行修改

    cp startup.sh startup.sh.bak
vim startup.sh

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    找到如图的位置，改成和图片一致。新增p:与如下内容

            p)
            PORT=$OPTARG;;

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    在这里插入图片描述
    修改文件末尾，添加jar文件的启动端口信息-Dserver.port=${PORT}参数
    在这里插入图片描述
    startup.sh

    #!/bin/sh
# Copyright 1999-2018 Alibaba Group Holding Ltd.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

cygwin=false
darwin=false
os400=false
case "`uname`" in
CYGWIN*) cygwin=true;;
Darwin*) darwin=true;;
OS400*) os400=true;;
esac
error_exit ()
{
    echo "ERROR: $1 !!"
    exit 1
}
[ ! -e "$JAVA_HOME/bin/java" ] && JAVA_HOME=$HOME/jdk/java
[ ! -e "$JAVA_HOME/bin/java" ] && JAVA_HOME=/usr/java
[ ! -e "$JAVA_HOME/bin/java" ] && JAVA_HOME=/opt/taobao/java
[ ! -e "$JAVA_HOME/bin/java" ] && unset JAVA_HOME

if [ -z "$JAVA_HOME" ]; then
  if $darwin; then

    if [ -x '/usr/libexec/java_home' ] ; then
      export JAVA_HOME=`/usr/libexec/java_home`

    elif [ -d "/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home" ]; then
      export JAVA_HOME="/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home"
    fi
  else
    JAVA_PATH=`dirname $(readlink -f $(which javac))`
    if [ "x$JAVA_PATH" != "x" ]; then
      export JAVA_HOME=`dirname $JAVA_PATH 2>/dev/null`
    fi
  fi
  if [ -z "$JAVA_HOME" ]; then
        error_exit "Please set the JAVA_HOME variable in your environment, We need java(x64)! jdk8 or later is better!"
  fi
fi

export SERVER="nacos-server"
export MODE="cluster"
export FUNCTION_MODE="all"
while getopts ":m:f:s:p:" opt
do
    case $opt in
        m)
            MODE=$OPTARG;;
        f)
            FUNCTION_MODE=$OPTARG;;
        s)
            SERVER=$OPTARG;;
	p)
	    PORT=$OPTARG;;
        ?)
        echo "Unknown parameter"
        exit 1;;
    esac
done

export JAVA_HOME
export JAVA="$JAVA_HOME/bin/java"
export BASE_DIR=`cd $(dirname $0)/..; pwd`
export DEFAULT_SEARCH_LOCATIONS="classpath:/,classpath:/config/,file:./,file:./config/"
export CUSTOM_SEARCH_LOCATIONS=${DEFAULT_SEARCH_LOCATIONS},file:${BASE_DIR}/conf/

#===========================================================================================
# JVM Configuration
#===========================================================================================
if [[ "${MODE}" == "standalone" ]]; then
    JAVA_OPT="${JAVA_OPT} -Xms512m -Xmx512m -Xmn256m"
    JAVA_OPT="${JAVA_OPT} -Dnacos.standalone=true"
else
    JAVA_OPT="${JAVA_OPT} -server -Xms2g -Xmx2g -Xmn1g -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m"
    JAVA_OPT="${JAVA_OPT} -XX:-OmitStackTraceInFastThrow -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=${BASE_DIR}/logs/java_heapdump.hprof"
    JAVA_OPT="${JAVA_OPT} -XX:-UseLargePages"

fi

if [[ "${FUNCTION_MODE}" == "config" ]]; then
    JAVA_OPT="${JAVA_OPT} -Dnacos.functionMode=config"
elif [[ "${FUNCTION_MODE}" == "naming" ]]; then
    JAVA_OPT="${JAVA_OPT} -Dnacos.functionMode=naming"
fi


JAVA_MAJOR_VERSION=$($JAVA -version 2>&1 | sed -E -n 's/.* version "([0-9]*).*$/\1/p')
if [[ "$JAVA_MAJOR_VERSION" -ge "9" ]] ; then
  JAVA_OPT="${JAVA_OPT} -cp .:${BASE_DIR}/plugins/cmdb/*.jar:${BASE_DIR}/plugins/mysql/*.jar"
  JAVA_OPT="${JAVA_OPT} -Xlog:gc*:file=${BASE_DIR}/logs/nacos_gc.log:time,tags:filecount=10,filesize=102400"
else
  JAVA_OPT="${JAVA_OPT} -Djava.ext.dirs=${JAVA_HOME}/jre/lib/ext:${JAVA_HOME}/lib/ext:${BASE_DIR}/plugins/cmdb:${BASE_DIR}/plugins/mysql"
  JAVA_OPT="${JAVA_OPT} -Xloggc:${BASE_DIR}/logs/nacos_gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M"
fi

JAVA_OPT="${JAVA_OPT} -Dnacos.home=${BASE_DIR}"
JAVA_OPT="${JAVA_OPT} -Dloader.path=${BASE_DIR}/plugins/health -jar ${BASE_DIR}/target/${SERVER}.jar"
JAVA_OPT="${JAVA_OPT} ${JAVA_OPT_EXT}"
JAVA_OPT="${JAVA_OPT} --spring.config.location=${CUSTOM_SEARCH_LOCATIONS}"
JAVA_OPT="${JAVA_OPT} --logging.config=${BASE_DIR}/conf/nacos-logback.xml"
JAVA_OPT="${JAVA_OPT} --server.max-http-header-size=524288"

if [ ! -d "${BASE_DIR}/logs" ]; then
  mkdir ${BASE_DIR}/logs
fi

echo "$JAVA ${JAVA_OPT}"

if [[ "${MODE}" == "standalone" ]]; then
    echo "nacos is starting with standalone"
else
    echo "nacos is starting with cluster"
fi

# check the start.out log output file
if [ ! -f "${BASE_DIR}/logs/start.out" ]; then
  touch "${BASE_DIR}/logs/start.out"
fi
# start
echo "$JAVA ${JAVA_OPT}" > ${BASE_DIR}/logs/start.out 2>&1 &
nohup $JAVA -Dserver.port=${PORT} ${JAVA_OPT} nacos.nacos >> ${BASE_DIR}/logs/start.out 2>&1 &
echo "nacos is starting，you can check the ${BASE_DIR}/logs/start.out"


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    启动nacos

    启动

    cd /usr/local/nacos/bin
./startup.sh -p 3333
./startup.sh -p 4444
./startup.sh -p 5555

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    查看nacos集群情况

    ps -ef|grep nacos|grep -v grep |wc -l

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    报错（已经在配置中修改，正常操作不会出现这个问题，请忽略）：发现只有第一个nacos可以启动，第二个nacos启动就会报端口被占用，报错信息如下

    原因： 经过长达一天的排查总算找到了原因，是因为启动指令./startup.sh -p 3333的-p中间多了一个空格，导致传进去的端口参数没有生效所以才会有端口被占用的问题，吐血了。

    cat /usr/local/nacos/logs/start.out

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    在这里插入图片描述
    根据提示需要查看nacos.log文件具体的日志信息

    cat /usr/local/nacos/logs/nacos.log

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    Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.

2022-11-11 19:16:39,908 ERROR 

***************************
APPLICATION FAILED TO START
***************************

Description:

The Tomcat connector configured to listen on port 8080 failed to start. The port may already be in use or the connector may be misconfigured.

Action:

Verify the connector's configuration, identify and stop any process that's listening on port 8080, or configure this application to listen on another port.


2022-11-11 19:16:39,910 INFO Shutting down ExecutorService 'taskScheduler'

2022-11-11 19:16:39,912 INFO Shutting down ExecutorService 'applicationTaskExecutor'

2022-11-11 19:16:45,001 ERROR Unexpected error occurred in scheduled task.

java.lang.IllegalStateException: unable to find local peer: 192.168.254.5:8080, all peers: [192.168.254.5:3333, 192.168.254.5:4444, 192.168.254.5:5555]
	at com.alibaba.nacos.naming.consistency.persistent.raft.RaftPeerSet.local(RaftPeerSet.java:224)
	at com.alibaba.nacos.naming.monitor.PerformanceLoggerThread.collectMetrics(PerformanceLoggerThread.java:100)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:84)
	at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
	at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:93)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
2022-11-11 19:17:00,001 ERROR Unexpected error occurred in scheduled task.

java.lang.IllegalStateException: unable to find local peer: 192.168.254.5:8080, all peers: [192.168.254.5:3333, 192.168.254.5:4444, 192.168.254.5:5555]
	at com.alibaba.nacos.naming.consistency.persistent.raft.RaftPeerSet.local(RaftPeerSet.java:224)
	at com.alibaba.nacos.naming.monitor.PerformanceLoggerThread.collectMetrics(PerformanceLoggerThread.java:100)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:84)
	at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
	at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:93)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
2022-11-11 19:17:15,001 ERROR Unexpected error occurred in scheduled task.


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    整合nginx，修改nginx.conf文件配置

    lz这里使用的ng版本是1.16，修改conf下的nginx.conf文件。这里忽略ng的安装步骤

       #gzip  on;
    upstream cluster{
        server 127.0.0.1:3333;
        server 127.0.0.1:4444;
        server 127.0.0.1:5555;

	#keepalive 256;
    }

    server {
        listen       1111;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
           # root   html;
           # index  index.html index.htm;
           proxy_pass http://cluster;
        }
    }

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    启动nginx命令

    /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf

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    访问项目

    访问地址：http://192.168.254.5:1111/nacos/，并且尝试添加测试文件
    在这里插入图片描述

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  • 原文地址：https://blog.csdn.net/qq_42910468/article/details/127811284