Linux 安装nacos图文教程
- 4.4编辑数据库连接的地址，用于连接mysql数据库。账号和密码为mysql数据库密码。注意此处的==mysql.xxx.tech:3306/nacos== nacos为此前创建的数据库名。
- 4.5添加添加数据库连接池的配置
- 4.5完整配置如下
前言
由于最近正好在整理各种中间件的安装配置文档，想着也发布到博客上进行记录分享。通过这篇博客可以成功安装naocs、配置好nacos的mysql数据库、并且能够成功访问使用。适合刚接触nacos想上手实践的读者。
Nacos下载安装步骤
本次下载的版本为2.0.1
1.下载Nacos
方式一、进入官网下载压缩包
下滑找到2.0.1，点进去
找到nacos-server-2.0.1.tar.gz 点击进行下载，下载完成后上传到服务器中。
方式二、使用wget命令下载
也有两种方式：第一种下载速度较慢
wget https://github.com/alibaba/nacos/releases/download/2.0.1/nacos-server-2.0.1.tar.gz
或
wget https://download.fastgit.org/alibaba/nacos/releases/download/2.0.1/nacos-server-2.0.1.tar.gz
2.解压安装包
tar -xvf nacos-server-2.0.1.tar.gz
3.创建mysql数据库
1.在解压号的nacos文件夹下找到config文件夹
2.进入config文件夹，找到nacos-mysql.sql文件
3.将nacos-mysql.sql文件下载到本地，本地使用Navicat连接上mysql
4.使用Navicat在mysql中创建名为nacos的数据库，注意数据库名后面会用上
示例：
4.修改数据库配置
4.1进入到conf目录修改application.properties
vim application.properties
4.2 编辑端口号，注意端口号需要大于5001
### Default web context path: server.servlet.contextPath=/nacos ### Default web server port: server.port=9001
4.3解开数据库的注释
### If use MySQL as datasource: spring.datasource.platform=mysql ### Count of DB: db.num=1
4.4编辑数据库连接的地址，用于连接mysql数据库。账号和密码为mysql数据库密码。注意此处的mysql.xxx.tech:3306/nacos nacos为此前创建的数据库名。
### Connect URL of DB: db.url.0=jdbc:mysql://mysql.xxx.tech:3306/nacos_prod?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC db.user.0=nacos db.password.0=nacos
4.5添加添加数据库连接池的配置
4.5完整配置如下
# # 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. # #*************** Spring Boot Related Configurations ***************# ### Default web context path: server.servlet.contextPath=/nacos ### Default web server port: server.port=9001 ### Connection pool configuration: hikariCP db.pool.config.connectionTimeout=30000 db.pool.config.validationTimeout=10000 db.pool.config.maximumPoolSize=20 db.pool.config.minimumIdle=2 #*************** Network Related Configurations ***************# ### If prefer hostname over ip for Nacos server addresses in cluster.conf: # nacos.inetutils.prefer-hostname-over-ip=false ### Specify local server's IP: # nacos.inetutils.ip-address= #*************** Config Module Related Configurations ***************# ### If use MySQL as datasource: spring.datasource.platform=mysql ### Count of DB: db.num=1 ### Connect URL of DB: db.url.0=jdbc:mysql://mysql.xxx.tech:3306/nacos?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC db.user.0=nacos db.password.0=nacos #*************** Naming Module Related Configurations ***************# ### Data dispatch task execution period in milliseconds: Will removed on v2.1.X, replace with nacos.core.protocol.distro.data.sync.delayMs # nacos.naming.distro.taskDispatchPeriod=200 ### Data count of batch sync task: Will removed on v2.1.X. Deprecated # nacos.naming.distro.batchSyncKeyCount=1000 ### Retry delay in milliseconds if sync task failed: Will removed on v2.1.X, replace with nacos.core.protocol.distro.data.sync.retryDelayMs # nacos.naming.distro.syncRetryDelay=5000 ### If enable data warmup. If set to false, the server would accept request without local data preparation: # nacos.naming.data.warmup=true ### If enable the instance auto expiration, kind like of health check of instance: # nacos.naming.expireInstance=true nacos.naming.empty-service.auto-clean=true nacos.naming.empty-service.clean.initial-delay-ms=50000 nacos.naming.empty-service.clean.period-time-ms=30000 #*************** CMDB Module Related Configurations ***************# ### The interval to dump external CMDB in seconds: # nacos.cmdb.dumpTaskInterval=3600 ### The interval of polling data change event in seconds: # nacos.cmdb.eventTaskInterval=10 ### The interval of loading labels in seconds: # nacos.cmdb.labelTaskInterval=300 ### If turn on data loading task: # nacos.cmdb.loadDataAtStart=false #*************** Metrics Related Configurations ***************# ### Metrics for prometheus management.endpoints.web.exposure.include=* ### Metrics for elastic search management.metrics.export.elastic.enabled=false #management.metrics.export.elastic.host=http://localhost:9200 ### Metrics for influx management.metrics.export.influx.enabled=false #management.metrics.export.influx.db=springboot #management.metrics.export.influx.uri=http://localhost:8086 #management.metrics.export.influx.auto-create-db=true #management.metrics.export.influx.consistency=one #management.metrics.export.influx.compressed=true #*************** Access Log Related Configurations ***************# ### If turn on the access log: server.tomcat.accesslog.enabled=true ### The access log pattern: server.tomcat.accesslog.pattern=%h %l %u %t "%r" %s %b %D %{User-Agent}i %{Request-Source}i ### The directory of access log: server.tomcat.basedir= #spring.datasource.platform=mysql #db.num=1 #db.url.0=jdbc:mysql://10.101.167.27:3306/acm?characterEncoding=utf8&connectTimeout=1000&socketTimeout=10000&autoReconnect=true #db.user=root #db.password=root #*************** Access Control Related Configurations ***************# ### If enable spring security, this option is deprecated in 1.2.0: #spring.security.enabled=false ### The ignore urls of auth, is deprecated in 1.2.0: nacos.security.ignore.urls=/,/error,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.ico,/console-ui/public/**,/v1/auth/**,/v1/console/health/**,/actuator/**,/v1/console/server/** ### The auth system to use, currently only 'nacos' and 'ldap' is supported: nacos.core.auth.system.type=nacos ### If turn on auth system: nacos.core.auth.enabled=false ### worked when nacos.core.auth.system.type=ldap，{0} is Placeholder,replace login username # nacos.core.auth.ldap.url=ldap://localhost:389 # nacos.core.auth.ldap.userdn=cn={0},ou=user,dc=company,dc=com ### The token expiration in seconds: nacos.core.auth.default.token.expire.seconds=18000 ### The default token: nacos.core.auth.default.token.secret.key=SecretKey012345678901234567890123456789012345678901234567890123456789 ### Turn on/off caching of auth information. By turning on this switch, the update of auth information would have a 15 seconds delay. nacos.core.auth.caching.enabled=true ### Since 1.4.1, Turn on/off white auth for user-agent: nacos-server, only for upgrade from old version. nacos.core.auth.enable.userAgentAuthWhite=false ### Since 1.4.1, worked when nacos.core.auth.enabled=true and nacos.core.auth.enable.userAgentAuthWhite=false. ### The two properties is the white list for auth and used by identity the request from other server. nacos.core.auth.server.identity.key=serverIdentity nacos.core.auth.server.identity.value=security #*************** Istio Related Configurations ***************# ### If turn on the MCP server: nacos.istio.mcp.server.enabled=false #*************** Core Related Configurations ***************# ### set the WorkerID manually # nacos.core.snowflake.worker-id= ### Member-MetaData # nacos.core.member.meta.site= # nacos.core.member.meta.adweight= # nacos.core.member.meta.weight= ### MemberLookup ### Addressing pattern category, If set, the priority is highest # nacos.core.member.lookup.type=[file,address-server] ## Set the cluster list with a configuration file or command-line argument # nacos.member.list=192.168.16.101:8847?raft_port=8807,192.168.16.101?raft_port=8808,192.168.16.101:8849?raft_port=8809 ## for AddressServerMemberLookup # Maximum number of retries to query the address server upon initialization # nacos.core.address-server.retry=5 ## Server domain name address of [address-server] mode # address.server.domain=jmenv.tbsite.net ## Server port of [address-server] mode # address.server.port=8080 ## Request address of [address-server] mode # address.server.url=/nacos/serverlist #*************** JRaft Related Configurations ***************# ### Distro data sync delay time, when sync task delayed, task will be merged for same data key. Default 1 second. # nacos.core.protocol.distro.data.sync.delayMs=1000 ### Distro data sync timeout for one sync data, default 3 seconds. # nacos.core.protocol.distro.data.sync.timeoutMs=3000 ### Distro data sync retry delay time when sync data failed or timeout, same behavior with delayMs, default 3 seconds. # nacos.core.protocol.distro.data.sync.retryDelayMs=3000 ### Distro data verify interval time, verify synced data whether expired for a interval. Default 5 seconds. # nacos.core.protocol.distro.data.verify.intervalMs=5000 ### Distro data verify timeout for one verify, default 3 seconds. # nacos.core.protocol.distro.data.verify.timeoutMs=3000 ### Distro data load retry delay when load snapshot data failed, default 30 seconds. # nacos.core.protocol.distro
5.进入bin目录启动nacos
单机模式
sh startup.sh -m standalone
集群模式
sh startup.sh
ps:若是配置集群的话，需要修改cluster.conf.example
在里边添加其他节点的nacos的IP+端口号
访问Nacos
ip+端口号+nacos/index.html
例如：http://127.0.0.0:9001/nacos/index.html
默认登陆账号密码
nacos
nacos
成功登陆显示页面
期间遇到的问题
1.No DataSource set
问题描述：
问题原因：没有找到数据源，一般情况是application.properties中，配置的mysq连接有问题。
解决问题：核对第4步中的数据库配置，注意域名、数据库、mysql的账号密码是否正确。
### Connect URL of DB: db.url.0=jdbc:mysql://mysql.xxx.tech:3306/nacos_prod?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC db.user.0=nacos db.password.0=nacos
2.java.io.IOException: Failed to bind
问题描述：
com.alibaba.nacos.core.distributed.raft.exception.JRaftException: java.io.IOException: Failed to bind
问题原因：绑定失败
解决问题：
方式一：查看nacos进程是否启动了多个进程，kill所有进程，再启动nacos
#查看nacos进程 ps aux|grep nacos #kill进程 kill 进程id
方式二：由于端口号的问题，在第四步，编辑端口号，注意端口号需要大于5001。并保证该端口被开放,再启动nacos
#查询指定端口是否已开启 firewall-cmd --query-port=9001/tcp #添加指定需要开放的端口： firewall-cmd --add-port=9001/tcp --permanent #重启防火墙 firewall-cmd --reload
