Fork me on GitHub

Nacos 集群部署

字数统计: 3k字   |   阅读时长≈ 16分

Nacos 集群部署

环境说明

主机名 IP地址 角色 软件
nacos-1 192.168.200.13 nacos, mysql-master nacos, mysql
nacos-2 192.168.200.14 nacos, mysql-slave nacos, mysql
nacos-3 192.168.200.15 nacos, nginx nacos, nginx

预备环境准备

以下操作在所有节点都要执行

  1. 所有节点安装 jdk

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    # 创建 JDK 安装目录
    mkdir /usr/local/java

    # 解压压缩包
    tar xvf jdk1.8.0_202.tar.gz -C /usr/local/java/

    # 配置环境变量
    cat > /etc/profile.d/java.sh <<EOF
    #!/bin/bash

    export JAVA_HOME=/usr/local/java/jdk1.8.0_202
    export CLASSPATH=\$CLASSPATH:\$JAVA_HOME/lib:\$JAVA_HOME/jre/lib
    export PATH=\$JAVA_HOME/bin:\$JAVA_HOME/jre/bin:\$PATH:$HOME/bin
    EOF

    # 刷新环境变量
    source /etc/profile.d/java.sh

  2. 所有节点安装部署 maven

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    # 下载 maven 安装包
    wget https://dlcdn.apache.org/maven/maven-3/3.8.5/binaries/apache-maven-3.8.5-bin.tar.gz --no-check-certificate 

    # 解压安装包
    mkdir -p /usr/local/maven
    tar xvf apache-maven-3.8.5-bin.tar.gz -C /usr/local/maven

    # 配置环境变量
    cat > /etc/profile.d/maven.sh <<EOF
    #!/bin/bash

    export MAVEN_HOME=/usr/local/maven/apache-maven-3.8.5
    export PATH=\$MAVEN_HOME/bin:\$PATH:$HOME/bin
    EOF

    # 刷新环境变量
    source /etc/profile.d/maven.sh

    # 查看 maven 版本信息
    mvn -version

    # 修改配置文件，在 mirrors 配置里面添加阿里云 maven 仓库
    <mirror>
      <id>alimaven</id>
      <name>aliyun maven</name>
      <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
      <mirrorOf>central</mirrorOf>
    <mirror>

    # 修改资源保存位置。在 localRepository 下面加入配置
    <settings xmlns="http://maven.apache.org/SETTINGS/1.2.0"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.2.0 https://maven.apache.org/xsd/settings-1.2.0.xsd">
      <!-- localRepository
      | The path to the local repository maven will use to store artifacts.
      |
      | Default: ${user.home}/.m2/repository
      <localRepository>/path/to/local/repo</localRepository>
      -->

      <localRepository>/data/maven/repo</localRepository>
      ... 省略 N 行

    # 创建 repo 目录
    mkdir /data/maven/repo -p

安装 MySQL 8.x

以下所有操作在 nacos-1 以及 nacos-2 主机上操作

安装 MySQL

  1. 卸载自带的 MariaDB

    1
    2
    3
    4
    5
    # 查看默认安装的 mariadb
    rpm -qa |grep mariadb

    # 卸载已安装的
    rpm -e mariadb-libs-5.5.68-1.el7.x86_64 --nodeps

  2. 下载 rpm 安装包

    1
    wget https://cdn.mysql.com/archives/mysql-8.0/mysql-8.0.27-1.el7.x86_64.rpm-bundle.tar

  3. 安装 MySQL，应当按照 common–>libs–>client–>server 的顺序安装，否则安装过程会提醒依赖顺序，其他的为非必须安装包。

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    # 解压压缩包
    tar xf mysql-8.0.27-1.el7.x86_64.rpm-bundle.tar 

    # 安装 MySQL
    rpm -ivh mysql-community-common-8.0.27-1.el7.x86_64.rpm 

    rpm -ivh \
      mysql-community-libs-compat-8.0.27-1.el7.x86_64.rpm \
      mysql-community-libs-8.0.27-1.el7.x86_64.rpm \
      mysql-community-client-plugins-8.0.27-1.el7.x86_64.rpm 

    rpm -ivh mysql-community-client-8.0.27-1.el7.x86_64.rpm 

    rpm -ivh mysql-community-server-8.0.27-1.el7.x86_64.rpm

  4. 创建 MySQL 配置文件 my.cnf，内容如下

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64
    65
    66
    67
    68
    69
    70
    71
    72
    73
    74
    75
    76
    77
    78
    79
    80
    81
    82
    83
    84
    85
    86
    87
    88
    89
    90
    91
    92
    93
    94
    95
    96
    97
    98
    99
    100
    101
    102
    # 备份 my.cnf 文件
    cp /etc/my.cnf /etc/my.cnf.bak

    # cat /etc/my.cnf
    [client]
    port = 3306
    socket = /var/lib/mysql/mysql.sock
    default-character-set = utf8mb4

    [mysql]
    prompt="MySQL [\\d]> "
    no-auto-rehash

    [mysqld]
    port = 3306
    socket = /var/lib/mysql/mysql.sock
    default_authentication_plugin = mysql_native_password
    # 设置数据库不区分大小写
    lower_case_table_names = 1

    datadir = /data/mysql
    pid-file = /data/mysql/mysql.pid
    user = mysql
    bind-address = 0.0.0.0
    server-id = 1

    init-connect = 'SET NAMES utf8mb4'
    character-set-server = utf8mb4
    collation-server = utf8mb4_0900_ai_ci

    skip-name-resolve
    #skip-networking
    back_log = 300

    max_connections = 1000
    max_connect_errors = 6000
    open_files_limit = 65535
    table_open_cache = 128
    max_allowed_packet = 500M
    binlog_cache_size = 1M
    max_heap_table_size = 8M
    tmp_table_size = 16M

    read_buffer_size = 2M
    read_rnd_buffer_size = 8M
    sort_buffer_size = 8M
    join_buffer_size = 8M
    key_buffer_size = 4M

    thread_cache_size = 8

    ft_min_word_len = 4

    log_bin = mysql-bin
    binlog_format = mixed
    binlog_expire_logs_seconds = 604800

    log_error = /data/mysql/mysql-error.log
    slow_query_log = 1
    long_query_time = 1
    slow_query_log_file = /data/mysql/mysql-slow.log

    performance_schema = 0
    explicit_defaults_for_timestamp

    #lower_case_table_names = 1

    skip-external-locking

    default_storage_engine = InnoDB
    #default-storage-engine = MyISAM
    innodb_file_per_table = 1
    innodb_open_files = 500
    innodb_buffer_pool_size = 64M
    innodb_write_io_threads = 4
    innodb_read_io_threads = 4
    innodb_thread_concurrency = 0
    innodb_purge_threads = 1
    innodb_flush_log_at_trx_commit = 2
    innodb_log_buffer_size = 2M
    innodb_log_file_size = 32M
    innodb_log_files_in_group = 3
    innodb_max_dirty_pages_pct = 90
    innodb_lock_wait_timeout = 120

    bulk_insert_buffer_size = 8M
    myisam_sort_buffer_size = 8M
    myisam_max_sort_file_size = 10G
    myisam_repair_threads = 1

    interactive_timeout = 28800
    wait_timeout = 28800

    [mysqldump]
    quick
    max_allowed_packet = 500M

    [myisamchk]
    key_buffer_size = 8M
    sort_buffer_size = 8M
    read_buffer = 4M
    write_buffer = 4M

  5. 创建数据库数据存放目录 /data/mysql

    1
    mkdir /data/mysql -p

  6. 初始化数据库，不区分大小写

    1
    mysqld --user=mysql --lower_case_table_names=1 --initialize-insecure --basedir=/var/lib/mysql --datadir=/data/mysql

  7. 启动 MySQL，并配置开机启动

    1
    systemctl enable --now mysqld

  8. 执行以下命令，对数据库进行安全性设置

    1
    mysql_secure_installation

配置主从方案参考 MySQL 8.0主从（Master-Slave）配置

配置主从

  1. 修改 Master 节点的配置文件 /etc/my.cnf

    1
    2
    3
    4
    # 在 my.cnf 文件中加入如下配置内容，主要注意 server-id 这个参数的值必须是唯一的
    [mysqld]
    log_bin = mysql-bin
    server-id = 1

  2. 修改 Slave 节点的配置文件 /etc/my.cnf，

    1
    2
    3
    [mysqld]
    log_bin = mysql-bin
    server-id = 2     # 注意这个值不要和 master 节点的一样

    修改完后需要重启 mysqld 服务，否则配置文件不会生效

  3. 在 Master 节点创建用于同步的用户

    1
    2
    3
    4
    5
    6
    7
    8
    MySQL [(none)]> create user 'repl'@'192.168.200.14' identified with mysql_native_password by 'shkzC123!@#';
    Query OK, 0 rows affected (0.00 sec)

    MySQL [(none)]> grant replication slave on *.* to 'repl'@'192.168.200.14';
    Query OK, 0 rows affected (0.00 sec)

    MySQL [(none)]> flush privileges;
    Query OK, 0 rows affected (0.00 sec)

  4. 获取 Master 节点 bin_log 文件名以及 pos 位置

    1
    2
    3
    4
    5
    6
    7
    MySQL [(none)]> show master status;
    +------------------+----------+--------------+------------------+-------------------+
    | File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
    +------------------+----------+--------------+------------------+-------------------+
    | mysql-bin.000002 |     1855 |              |                  |                   |
    +------------------+----------+--------------+------------------+-------------------+
    1 row in set (0.00 sec)

  5. 登录 Slave 节点，执行以下命令设置 Master 节点参数

    1
    2
    3
    4
    5
    6
    7
    8
    MySQL [(none)]> change master to 
      master_host='192.168.200.13',
      master_user='repl',
      master_password='shkzC123!@#',
      master_log_file='mysql-bin.000002',
      master_log_pos=1855;

    Query OK, 0 rows affected, 8 warnings (0.01 sec)

  6. 查看主从同步状态，在 Slave 节点执行以下命令

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    MySQL [(none)]> show slave status \G
    *************************** 1. row ***************************
                  Slave_IO_State: 
                      Master_Host: 192.168.200.13
                      Master_User: repl
                      Master_Port: 3306
                    Connect_Retry: 60
                  Master_Log_File: mysql-bin.000002
              Read_Master_Log_Pos: 1855
                  Relay_Log_File: nacos-2-relay-bin.000001
                    Relay_Log_Pos: 4
            Relay_Master_Log_File: mysql-bin.000002
                Slave_IO_Running: No
                Slave_SQL_Running: No
                  Replicate_Do_DB: 
              Replicate_Ignore_DB: 
              Replicate_Do_Table: 
          Replicate_Ignore_Table: 
          Replicate_Wild_Do_Table: 
      Replicate_Wild_Ignore_Table: 
                      Last_Errno: 0
                      Last_Error: 
                    Skip_Counter: 0
              Exec_Master_Log_Pos: 1855
                  Relay_Log_Space: 156
                  Until_Condition: None
                  Until_Log_File: 
                    Until_Log_Pos: 0
              Master_SSL_Allowed: No
              Master_SSL_CA_File: 
              Master_SSL_CA_Path: 
                  Master_SSL_Cert: 
                Master_SSL_Cipher: 
                  Master_SSL_Key: 
            Seconds_Behind_Master: NULL
    Master_SSL_Verify_Server_Cert: No
                    Last_IO_Errno: 0
                    Last_IO_Error: 
                  Last_SQL_Errno: 0
                  Last_SQL_Error: 
      Replicate_Ignore_Server_Ids: 
                Master_Server_Id: 0
                      Master_UUID: 
                Master_Info_File: mysql.slave_master_info
                        SQL_Delay: 0
              SQL_Remaining_Delay: NULL
          Slave_SQL_Running_State: 
              Master_Retry_Count: 86400
                      Master_Bind: 
          Last_IO_Error_Timestamp: 
        Last_SQL_Error_Timestamp: 
                  Master_SSL_Crl: 
              Master_SSL_Crlpath: 
              Retrieved_Gtid_Set: 
                Executed_Gtid_Set: 
                    Auto_Position: 0
            Replicate_Rewrite_DB: 
                    Channel_Name: 
              Master_TLS_Version: 
          Master_public_key_path: 
            Get_master_public_key: 0
                Network_Namespace: 
    1 row in set, 1 warning (0.00 sec)

  7. 开启主从同步，在 Slave 节点执行以下命令

    1
    2
    MySQL [(none)]> start slave;
    Query OK, 0 rows affected, 1 warning (0.01 sec)

  8. 再次查看 Slave 状态

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    MySQL [(none)]> show slave status \G
    *************************** 1. row ***************************
                  Slave_IO_State: Waiting for source to send event
                      Master_Host: 192.168.200.13
                      Master_User: repl
                      Master_Port: 3306
                    Connect_Retry: 60
                  Master_Log_File: mysql-bin.000002
              Read_Master_Log_Pos: 1855
                  Relay_Log_File: nacos-2-relay-bin.000003
                    Relay_Log_Pos: 324
            Relay_Master_Log_File: mysql-bin.000002
                Slave_IO_Running: Yes
                Slave_SQL_Running: Yes
                  Replicate_Do_DB: 
              Replicate_Ignore_DB: 
              Replicate_Do_Table: 
          Replicate_Ignore_Table: 
          Replicate_Wild_Do_Table: 
      Replicate_Wild_Ignore_Table: 
                      Last_Errno: 0
                      Last_Error: 
                    Skip_Counter: 0
              Exec_Master_Log_Pos: 1855
                  Relay_Log_Space: 714
                  Until_Condition: None
                  Until_Log_File: 
                    Until_Log_Pos: 0
              Master_SSL_Allowed: No
              Master_SSL_CA_File: 
              Master_SSL_CA_Path: 
                  Master_SSL_Cert: 
                Master_SSL_Cipher: 
                  Master_SSL_Key: 
            Seconds_Behind_Master: 0
    Master_SSL_Verify_Server_Cert: No
                    Last_IO_Errno: 0
                    Last_IO_Error: 
                  Last_SQL_Errno: 0
                  Last_SQL_Error: 
      Replicate_Ignore_Server_Ids: 
                Master_Server_Id: 1
                      Master_UUID: 9ae436ba-b5a1-11ec-a0e1-0050563ec15e
                Master_Info_File: mysql.slave_master_info
                        SQL_Delay: 0
              SQL_Remaining_Delay: NULL
          Slave_SQL_Running_State: Replica has read all relay log; waiting for more updates
              Master_Retry_Count: 86400
                      Master_Bind: 
          Last_IO_Error_Timestamp: 
        Last_SQL_Error_Timestamp: 
                  Master_SSL_Crl: 
              Master_SSL_Crlpath: 
              Retrieved_Gtid_Set: 
                Executed_Gtid_Set: 
                    Auto_Position: 0
            Replicate_Rewrite_DB: 
                    Channel_Name: 
              Master_TLS_Version: 
          Master_public_key_path: 
            Get_master_public_key: 0
                Network_Namespace: 
    1 row in set, 1 warning (0.01 sec)

    开启主从之后，如果状态如上图所示，那么说明主从信息就已经配置好了。

    • 注意：查看状态时，可能会出现 I/O 任务启动失败的情况，即如下错误:
    1
    Last_IO_Error: Fatal error: The slave I/O thread stops because master and slave have equal MySQL server ids; these ids must be different for replication to work (or the --replicate-same-server-id option must be used on slave but this does not always make sense; please check the manual before using it).

    这是因为在 MySQL 主从结构中，从机上的 server_id 和主机上的 server_id 不能相同，我们可以看一下主机上的 server_id 和从机上的 server_id 是否相同。还有就是修改完配置后需要重启 MySQL 服务

安装 nacos

以下操作，未作特别说明的，则需要在所有节点执行

安装配置 nacos

  1. 在 GitHub 上下载编译好的 nacos 安装包，下载地址: Release

    1
    wget https://github.com/alibaba/nacos/releases/download/1.4.3/nacos-server-1.4.3.tar.gz

  2. 解压

    1
    tar xvf nacos-server-1.4.3.tar.gz -C /usr/local/

  3. 登录 MySQL Master 节点，执行以下命令

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    # 创建数据库 nacos_config
    create database nacos_config character set utf8 collate utf8_bin;

    # 创建用户
    create user 'nacos'@'%' identified by '6Siknnr6c~Pa';

    # 授权
    grant all privileges on nacos_config.* to 'nacos'@'%';

    # 刷新权限表
    flush privileges;

    # 切换数据库
    use nacos_config;

    # 执行 nacos 初始化数据脚本
    source /usr/local/nacos/conf/nacos-mysql.sql;

  4. 所有节点配置 nacos 后端数据库，在 nacos 的 conf 目录下的 application.properties，添加以下配置

    1
    2
    3
    4
    5
    spring.datasource.platform=mysql
    db.num=1
    db.url.0=jdbc:mysql://192.168.200.13:3306/nacos_config?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC
    db.user.0=nacos
    db.password.0=6Siknnr6c~Pa

  5. 配置集群文件，在 nacos 的解压目录 nacos/conf 的目录下，有配置文件 cluster.conaf，请每行配置成 ip:port。

    1
    2
    3
    4
    5
    6
    7
    8
    9
    cd /usr/local/nacos/conf/
    # 复制一份 sample 文件作为 nacos 的配置文件
    cp cluster.conf.example cluster.conf

    # 修改 cluster.conf 文件，添加节点信息，如下:

    192.168.200.13:8848
    192.168.200.14:8848
    192.168.200.15:8848

启动 nacos

  1. 手动执行命令启动服务，所有节点执行以下命令

    1
    2
    3
    4
    5
    # sh bin/startup.sh 

    /usr/local/java/jdk1.8.0_202/bin/java  -server -Xms2g -Xmx2g -Xmn1g -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m -XX:-OmitStackTraceInFastThrow -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/usr/local/nacos/logs/java_heapdump.hprof -XX:-UseLargePages -Dnacos.member.list= -Djava.ext.dirs=/usr/local/java/jdk1.8.0_202/jre/lib/ext:/usr/local/java/jdk1.8.0_202/lib/ext -Xloggc:/usr/local/nacos/logs/nacos_gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M -Dloader.path=/usr/local/nacos/plugins/health,/usr/local/nacos/plugins/cmdb -Dnacos.home=/usr/local/nacos -jar /usr/local/nacos/target/nacos-server.jar  --spring.config.additional-location=file:/usr/local/nacos/conf/ --logging.config=/usr/local/nacos/conf/nacos-logback.xml --server.max-http-header-size=524288
    nacos is starting with cluster
    nacos is starting，you can check the /usr/local/nacos/logs/start.out

  2. 查看日志

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    # tailf logs/start.out 
    2022-04-06 20:50:44,895 INFO Nacos is starting...

    2022-04-06 20:50:45,905 INFO Nacos is starting...

    2022-04-06 20:50:46,920 INFO Nacos is starting...

    2022-04-06 20:50:47,926 INFO Nacos is starting...

    2022-04-06 20:50:48,549 INFO Nacos started successfully in cluster mode. use external storage

    # tailf /usr/local/nacos/logs/nacos.log
    2022-04-06 20:50:40,226 INFO Started Nacos in 15.445 seconds (JVM running for 16.204)

    2022-04-06 20:50:40,227 INFO Nacos started successfully in cluster mode. use external storage

    2022-04-06 20:50:45,579 INFO Initializing Spring DispatcherServlet 'dispatcherServlet'

    2022-04-06 20:50:45,579 INFO Initializing Servlet 'dispatcherServlet'

    2022-04-06 20:50:45,607 INFO Completed initialization in 28 ms

  3. 打开浏览器访问 nacos 页面 http://192.168.200.13:8848/nacos，默认用户名密码为 nacos/nacos
    qv4FBT.png

  4. 配置 systemd 管理 nacos

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    # 添加 nacos 服务运行用户
    useradd -s /sbin/nologin -M nacos

    # 修改 bin/start.sh 文件。添加 java 环境变量
    sed -i '/cygwin=false/i\source /etc/profile.d/java.sh\n' /usr/local/nacos/bin/startup.sh

    # 修改 nacos 目录权限
    chown -R nacos:nacos /usr/local/nacos

    # 创建 service 文件
    cat > /usr/lib/systemd/system/nacos.service <<EOF
    [Unit]
    Description=nacos
    After=network.target

    [Service]
    Type=forking
    Environment="JAVA_HOME=/usr/local/java/jdk1.8.0_202"
    Environment="CLASSPATH=\$CLASSPATH:\$JAVA_HOME/lib:\$JAVA_HOME/jre/lib"
    ExecStart=/usr/local/nacos/bin/startup.sh
    ExecReload=/bin/kill -HUP \$MAINPID
    ExecStop=/usr/local/nacos/bin/shutdown.sh
    PrivateTmp=true
    User=nacos
    Group=nacos

    [Install]
    WantedBy=multi-user.target
    EOF

  5. 启动 nacos 并配置开机启动

    1
    systemctl enable --now nacos.service

  6. 查看服务状态

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    # systemctl status nacos
    ● nacos.service - nacos
      Loaded: loaded (/usr/lib/systemd/system/nacos.service; enabled; vendor preset: disabled)
      Active: active (running) since Wed 2022-04-06 21:17:08 CST; 12min ago
      CGroup: /system.slice/nacos.service
              └─5996 /usr/local/java/jdk1.8.0_202/bin/java -server -Xms2g -Xmx2g -Xmn1g -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m -XX:-OmitStackTraceInFastThrow -XX:+HeapDumpOnOutOfMe...

    Apr 06 21:17:08 nacos-1 systemd[1]: Starting nacos...
    Apr 06 21:17:08 nacos-1 systemd[1]: Started nacos.

    # ps aux |grep nacos
    nacos      5996  3.3 57.8 4420776 1173964 ?     Sl   21:17   0:24 /usr/local/java/jdk1.8.0_202/bin/java -server -Xms2g -Xmx2g -Xmn1g -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m -XX:-OmitStackTraceInFastThrow -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/usr/local/nacos/logs/java_heapdump.hprof -XX:-UseLargePages -Dnacos.member.list= -Djava.ext.dirs=/usr/local/java/jdk1.8.0_202/jre/lib/ext:/usr/local/java/jdk1.8.0_202/lib/ext -Xloggc:/usr/local/nacos/logs/nacos_gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M -Dloader.path=/usr/local/nacos/plugins/health,/usr/local/nacos/plugins/cmdb -Dnacos.home=/usr/local/nacos -jar /usr/local/nacos/target/nacos-server.jar --spring.config.additional-location=file:/usr/local/nacos/conf/ --logging.config=/usr/local/nacos/conf/nacos-logback.xml --server.max-http-header-size=524288 nacosnacos
    root       6776  0.0  0.0 112808   968 pts/0    R+   21:29   0:00 grep --color=auto nacos

    # netstat -anptl |grep 8848
    tcp6       0      0 :::8848                 :::*                    LISTEN      5996/java           
    tcp6       0      0 192.168.200.13:37558    192.168.200.15:8848     TIME_WAIT   -                   
    tcp6       0      0 192.168.200.13:8848     192.168.200.15:42372    ESTABLISHED 5996/java           
    tcp6       0      0 192.168.200.13:8848     192.168.200.14:59538    ESTABLISHED 5996/java

安装 nginx 并配置负载均衡

  1. 在 nacos-3 节点安装 nginx 服务

    1
    2
    3
    yum install -y nginx

    systemctl enable --now nginx

  2. 修改 nginx 配置文件，添加 nacos 服务文件

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    # 创建配置文件
    cat >/etc/nginx/conf.d/nacos.conf <<EOF
    upstream  nacos-servers {
        server 192.168.200.13:8848;
        server 192.168.200.14:8848;
        server 192.168.200.15:8848;
    }

    server {
        listen     8088;
        server_name  _;
        
        location / {
            proxy_pass http://nacos-servers/;
            proxy_set_header Host \$host:\$server_port;
            proxy_set_header X-Real-IP \$remote_addr;
            proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
            proxy_ignore_client_abort on;
        }
    }
    EOF

    # 检查配置文件是否配置正确
    nginx -t
    nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
    nginx: configuration file /etc/nginx/nginx.conf test is successful

    # 重新加载配置文件
    nginx -s reload

  3. 打开浏览器访问 192.168.200.15:8088/nacos 测试访问 ancos 服务
    qvLSC8.png

tag:

    缺失模块。
    1、请确保node版本大于6.2
    2、在博客根目录（注意不是yilia-plus根目录）执行以下命令：
    npm i hexo-generator-json-content --save

    3、在根目录_config.yml里添加配置： 

      jsonContent:
    meta: false
    pages: false
    posts:
      title: true
      date: true
      path: true
      text: false
      raw: false
      content: false
      slug: false
      updated: false
      comments: false
      link: false
      permalink: false
      excerpt: false
      categories: false
      tags: true

主要涉及技术：
Linux 运维、自动化运维、
Kubernetes、Python、Jenkins、Docker

联系QQ:2350686113

很惭愧

只做了一点微小的工作
谢谢大家