Nacos学习(二)--------Nacos单机部署
1.环境准备
nacos需要在java环境下运行，所以在安装nacos之前请确保已经安装了java
baldwin@baldwin:/usr/share/nacos/bin$ java -version
openjdk version "1.8.0_212"
OpenJDK Runtime Environment (build 1.8.0_212-8u212-b01-1~deb9u1-b01)
OpenJDK 64-Bit Server VM (build 25.212-b01, mixed mode)
2.Nacos下载
选择自己需要的版本，这里我选择的是当前的最新版本1.3.1。
我电脑的系统是Deepin，所以下载的是第一个，windows用户下载第二个，windows和linux下的安装流程大致相同。
Github这几天下载速度比较慢，如果需要nacos文件，可以回复“nacos”获取文件。
3.安装
直接将文件解压到你安装软件的文件夹下，我习惯将软件安装到/usr/share文件夹下
nacos文件夹结构如下
.
├── bin
│ ├── shutdown.cmd
│ ├── shutdown.sh
│ ├── startup.cmd
│ └── startup.sh
├── conf
│ ├── application.properties
│ ├── application.properties.example
│ ├── cluster.conf.example
│ ├── nacos-logback.xml
│ ├── nacos-mysql.sql
│ └── schema.sql
├── LICENSE
├── logs
│ └── start.out
├── NOTICE
└── target
└── nacos-server.jar
4.启动
进入bin目录下，Linux系统执行bash startup.sh -m standalone命令sh startup.sh -m standalone，windows用户双击startup.cmd，单机模式启动
控制台：
baldwin@baldwin:/usr/share/nacos/bin$ sudo bash startup.sh -m standalone
/usr/lib/jvm/java-8-openjdk-amd64/bin/java -Xms512m -Xmx512m -Xmn256m -Dnacos.standalone=true -Dnacos.member.list= -Djava.ext.dirs=/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/ext:/usr/lib/jvm/java-8-openjdk-amd64/lib/ext -Xloggc:/usr/share/nacos/logs/nacos_gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M -Dloader.path=/usr/share/nacos/plugins/health,/usr/share/nacos/plugins/cmdb -Dnacos.home=/usr/share/nacos -jar /usr/share/nacos/target/nacos-server.jar --spring.config.location=classpath:/,classpath:/config/,file:./,file:./config/,file:/usr/share/nacos/conf/ --logging.config=/usr/share/nacos/conf/nacos-logback.xml --server.max-http-header-size=524288
nacos is starting with standalone
nacos is starting，you can check the /usr/share/nacos/logs/start.out
start.out日志
/usr/lib/jvm/java-8-openjdk-amd64/bin/java -Xms512m -Xmx512m -Xmn256m -Dnacos.standalone=true -Dnacos.member.list= -Djava.ext.dirs=/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/ext:/usr/lib/jvm/java-8-openjdk-amd64/lib/ext -Xloggc:/usr/share/nacos/logs/nacos_gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M -Dloader.path=/usr/share/nacos/plugins/health,/usr/share/nacos/plugins/cmdb -Dnacos.home=/usr/share/nacos -jar /usr/share/nacos/target/nacos-server.jar --spring.config.location=classpath:/,classpath:/config/,file:./,file:./config/,file:/usr/share/nacos/conf/ --logging.config=/usr/share/nacos/conf/nacos-logback.xml --server.max-http-header-size=524288
,--.
,--.'|
,--,: : | Nacos 1.3.1
,`--.'`| ' : ,---. Running in stand alone mode, All function modules
| : : | | ' ,'\ .--.--. Port: 8848
: | \ | : ,--.--. ,---. / / | / / ' Pid: 13167
| : ' '; | / \ / \. ; ,. :| : /`./ Console: http://192.168.31.15:8848/nacos/index.html
' ' ;. ;.--. .-. | / / '' | |: :| : ;_
| | | \ | \__\/: . .. ' / ' | .; : \ \ `. https://nacos.io
' : | ; .' ," .--.; |' ; :__| : | `----. \
| | '`--' / / ,. |' | '.'|\ \ / / /`--' /
' : | ; : .' \ : : `----' '--'. /
; |.' | , .-./\ \ / `--'---'
'---' `--`---' `----'
。。。。。。
2020-07-26 00:11:06,681 INFO Tomcat started on port(s): 8848 (http) with context path '/nacos'
2020-07-26 00:11:06,686 INFO Nacos Log files: /usr/share/nacos/logs
2020-07-26 00:11:06,689 INFO Nacos Log files: /usr/share/nacos/conf
2020-07-26 00:11:06,690 INFO Nacos Log files: /usr/share/nacos/data
2020-07-26 00:11:06,690 INFO Nacos started successfully in stand alone mode. use external storage
启动成功！
输入nacos/nacos成功登录
5.启动异常
启动命令
sh startup.sh -m standalone
启动报错
baldwin@baldwin:/usr/share/nacos/bin$ sudo ./startup.sh
./startup.sh: 87: ./startup.sh: [[: not found
./startup.sh: 91: ./startup.sh: [[: not found
./startup.sh: 100: ./startup.sh: [[: not found
./startup.sh: 102: ./startup.sh: [[: not found
./startup.sh: 109: ./startup.sh: [[: not found
/usr/lib/jvm/java-11-openjdk-amd64/bin/java -server -Xms2g -Xmx2g -Xmn1g -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m -XX:-OmitStackTraceInFastThrow -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/usr/share/nacos/logs/java_heapdump.hprof -XX:-UseLargePages -Dnacos.member.list= -Djava.ext.dirs=/usr/lib/jvm/java-11-openjdk-amd64/jre/lib/ext:/usr/lib/jvm/java-11-openjdk-amd64/lib/ext -Xloggc:/usr/share/nacos/logs/nacos_gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M -Dloader.path=/usr/share/nacos/plugins/health,/usr/share/nacos/plugins/cmdb -Dnacos.home=/usr/share/nacos -jar /usr/share/nacos/target/nacos-server.jar --spring.config.location=classpath:/,classpath:/config/,file:./,file:./config/,file:/usr/share/nacos/conf/ --logging.config=/usr/share/nacos/conf/nacos-logback.xml --server.max-http-header-size=524288
./startup.sh: 130: ./startup.sh: [[: not found
nacos is starting with cluster
nacos is starting，you can check the /usr/share/nacos/logs/start.out
查看/usr/share/nacos/logs/start.out文件
/usr/lib/jvm/java-11-openjdk-amd64/bin/java -server -Xms2g -Xmx2g -Xmn1g -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m -XX:-OmitStackTraceInFastThrow -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/usr/share/nacos/logs/java_heapdump.hprof -XX:-UseLargePages -Dnacos.member.list= -Djava.ext.dirs=/usr/lib/jvm/java-11-openjdk-amd64/jre/lib/ext:/usr/lib/jvm/java-11-openjdk-amd64/lib/ext -Xloggc:/usr/share/nacos/logs/nacos_gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M -Dloader.path=/usr/share/nacos/plugins/health,/usr/share/nacos/plugins/cmdb -Dnacos.home=/usr/share/nacos -jar /usr/share/nacos/target/nacos-server.jar --spring.config.location=classpath:/,classpath:/config/,file:./,file:./config/,file:/usr/share/nacos/conf/ --logging.config=/usr/share/nacos/conf/nacos-logback.xml --server.max-http-header-size=524288
-Djava.ext.dirs=/usr/lib/jvm/java-11-openjdk-amd64/jre/lib/ext:/usr/lib/jvm/java-11-openjdk-amd64/lib/ext is not supported. Use -classpath instead.
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
意思是我调用的是jdk11,不支持这个操作啥的，我的默认jdk是8,我不知道这里为什么调用的是11。
查一下系统jdk
baldwin@baldwin:/usr/share/nacos$ dpkg -l | grep openjdk
ii openjdk-11-jdk:amd64 11.0.4+11-1~deb10u1 amd64 OpenJDK Development Kit (JDK)
ii openjdk-11-jdk-headless:amd64 11.0.4+11-1~deb10u1 amd64 OpenJDK Development Kit (JDK) (headless)
ii openjdk-11-jre:amd64 11.0.4+11-1~deb10u1 amd64 OpenJDK Java runtime, using Hotspot JIT
ii openjdk-11-jre-headless:amd64 11.0.4+11-1~deb10u1 amd64 OpenJDK Java runtime, using Hotspot JIT (headless)
ii openjdk-8-jdk:amd64 8u212-b01-1~deb9u1 amd64 OpenJDK Development Kit (JDK)
ii openjdk-8-jdk-headless:amd64 8u212-b01-1~deb9u1 amd64 OpenJDK Development Kit (JDK) (headless)
ii openjdk-8-jre:amd64 8u212-b01-1~deb9u1 amd64 OpenJDK Java runtime, using Hotspot JIT
ii openjdk-8-jre-headless:amd64 8u212-b01-1~deb9u1 amd64 OpenJDK Java runtime, using Hotspot JIT (headless)
果然是有个jdk11,先把它卸载掉
sudo apt-get remove openjdk-11*
正在读取软件包列表... 完成
正在分析软件包的依赖关系树
正在读取状态信息... 完成
注意，根据Glob 'openjdk-11*' 选中了 'openjdk-11-demo'
。。。。。。
下列软件包将被【卸载】：
com.hostbuf.finalshell default-jdk default-jdk-headless default-jre default-jre-headless openjdk-11-jdk openjdk-11-jdk-headless openjdk-11-jre
openjdk-11-jre-headless
升级了 0 个软件包，新安装了 0 个软件包，要卸载 9 个软件包，有 203 个软件包未被升级。
解压缩后将会空出 624 MB 的空间。
您希望继续执行吗？ [Y/n] y
(正在读取数据库 ... 系统当前共安装有 252880 个文件和目录。)
。。。
update-alternatives: 使用 /usr/lib/jvm/java-8-openjdk-amd64/bin/jconsole 来在自动模式中提供 /usr/bin/jconsole (jconsole)
dpkg: 警告: 卸载 openjdk-11-jdk:amd64 时，目录 /usr/lib/jvm/openjdk-11 非空，因而不会删除该目录
正在卸载 openjdk-11-jdk-headless:amd64 (11.0.4+11-1~deb10u1) ...
update-alternatives: 使用 /usr/lib/jvm/java-8-openjdk-amd64/bin/jar 来在自动模式中提供 /usr/bin/jar (jar)
。。。
正在处理用于 libc-bin (2.28.7-1+deepin) 的触发器 ...
正在处理用于 bamfdaemon (0.5.4-1) 的触发器 ...
Rebuilding /usr/share/applications/bamf-2.index...
卸载完成，重新启动nacos
启动未成功，查询日志
/usr/lib/jvm/java-8-openjdk-amd64/bin/java -server -Xms2g -Xmx2g -Xmn1g -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m -XX:-OmitStackTraceInFastThrow -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/usr/share/nacos/logs/java_heapdump.hprof -XX:-UseLargePages -Dnacos.member.list= -Djava.ext.dirs=/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/ext:/usr/lib/jvm/java-8-openjdk-amd64/lib/ext -Xloggc:/usr/share/nacos/logs/nacos_gc.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=100M -Dloader.path=/usr/share/nacos/plugins/health,/usr/share/nacos/plugins/cmdb -Dnacos.home=/usr/share/nacos -jar /usr/share/nacos/target/nacos-server.jar --spring.config.location=classpath:/,classpath:/config/,file:./,file:./config/,file:/usr/share/nacos/conf/ --logging.config=/usr/share/nacos/conf/nacos-logback.xml --server.max-http-header-size=524288
,--.
,--.'|
,--,: : | Nacos 1.3.1
,`--.'`| ' : ,---. Running in cluster mode, All function modules
| : : | | ' ,'\ .--.--. Port: 8848
: | \ | : ,--.--. ,---. / / | / / ' Pid: 12947
| : ' '; | / \ / \. ; ,. :| : /`./ Console: http://192.168.31.15:8848/nacos/index.html
' ' ;. ;.--. .-. | / / '' | |: :| : ;_
| | | \ | \__\/: . .. ' / ' | .; : \ \ `. https://nacos.io
' : | ; .' ," .--.; |' ; :__| : | `----. \
| | '`--' / / ,. |' | '.'|\ \ / / /`--' /
' : | ; : .' \ : : `----' '--'. /
; |.' | , .-./\ \ / `--'---'
'---' `--`---' `----'
2020-07-26 00:07:22,876 INFO The server IP list of Nacos is []
。。。。。。
分析：剩下还有报错信息，暂时不用理会。我们这里发现，虽然我们设置的是单机模式，启动的却是集群模式，那么就说明sh startup.sh -m standalone命令是有问题的，我换作bash startup.sh -m standalone命令后，启动正常，这里的原因暂且不表，遇到这个问题可以尝试更换命令解决。
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