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部署HugeGraph

这里以hugegraph1.2.0为例子，演示一下如何安装部署hugegraph

一、下载并安装JDK11

1. 下载JDK11

https://www.oracle.com/java/technologies/downloads/#java11

2. 使用scp命令将安装包上传到服务器

scp /path/to/local/file username@server_ip:/path/to/remote/directory

3. 解压缩压缩包

tar -zxvf jdk-11.0.25_linux-x64_bin.tar.gz

4. 修改/etc/profile环境变量

vim /etc/profile

在文件末尾添加如下内容

export JAVA_HOME=/usr/local/jdk-11.0.25
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}

修改保存后，执行source /etc/profile，使环境变量生效

5. 测试安装是否成功

java -version

如果打印如下内容表示安装成功：

二、下载并安装hugegraph

1. 下载tar包

wget https://downloads.apache.org/incubator/hugegraph/1.2.0/apache-hugegraph-incubating-1.2.0.tar.gz

下载好之后如下所示：

2. 解压缩apache-hugegraph-incubating-1.2.0.tar.gz

tar -zxvf apache-hugegraph-incubating-1.2.0.tar.gz

三、修改hugegraph配置

1. 修改hugegraph.properties配置

vim /usr/local/apache-hugegraph-incubating-1.2.0/conf/graphs/hugegraph.properties

修改MySQL的相关配置

backend=mysql
serializer=mysql
store=hugegraph
# mysql backend config
jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://127.0.0.1:3306
jdbc.username=
jdbc.password=
jdbc.reconnect_max_times=3
jdbc.reconnect_interval=3
jdbc.ssl_mode=false

例如：

2. 下载数据库驱动包

使用如下命令下载 MySQL 的驱动包，比如 mysql-connector-java-8.0.30.jar

wget https://repo1.maven.org/maven2/mysql/mysql-connector-java/8.0.30/mysql-connector-java-8.0.30.jar

将驱动包移动到 HugeGraph-Server 的 lib 目录下

3. 初始化数据库

进入HugeGraph-Server 的 bin 目录，并执行 init-store.sh 脚本

bash init-store.sh

如果显示如下日志，表示初始化完成

四、启动

1. 启动不创建示例图

进入HugeGraph-Server 的 bin 目录，并执行 start-hugegraph.sh 脚本

2. 启动并创建示例图

进入HugeGraph-Server 的 bin 目录，并执行 start-hugegraph.sh 脚本,在脚本启动时候携带 -p true参数，表示 preload, 即创建示例图图

使用 RESTful API 请求 HugeGraphServer 如果得到如下结果，则表示部署成功

> curl "http://localhost:8080/graphs/hugegraph/graph/vertices" | gunzip
{"vertices":[{"id":"2:lop","label":"software","type":"vertex","properties":{"name":"lop","lang":"java","price":328}},{"id":"1:josh","label":"person","type":"vertex","properties":{"name":"josh","age":32,"city":"Beijing"}},{"id":"1:marko","label":"person","type":"vertex","properties":{"name":"marko","age":29,"city":"Beijing"}},{"id":"1:peter","label":"person","type":"vertex","properties":{"name":"peter","age":35,"city":"Shanghai"}},{"id":"1:vadas","label":"person","type":"vertex","properties":{"name":"vadas","age":27,"city":"Hongkong"}},{"id":"2:ripple","label":"software","type":"vertex","properties":{"name":"ripple","lang":"java","price":199}}]}


五、部署Hubble可视化界面

这里以1.2.0版本部署为例子

1. 下载toolchain的 tar 包并解压

wget https://downloads.apache.org/incubator/hugegraph/1.2.0/apache-hugegraph-toolchain-incubating-1.2.0.tar.gz
tar -xvf apache-hugegraph-toolchain-incubating-1.2.0.tar.gz 

2. 进入Hubber 的 bin 目录，并执行 start-hubble.sh 脚本

bash start-hubble.sh

3. 浏览器访问IP:8088，如果看到以下界面，表示部署成功：