Compile Exchange¶

This topic describes how to compile Nebula Exchange. Users can also download the compiled .jar file directly.

Prerequisites¶

• Install Maven.

• Download pulsar-spark-connector_2.11, and unzip it to io/streamnative/connectors directory of the local Maven library.

Steps¶

1. Clone the repository nebula-exchange in the / directory.

   git clone -b v2.6 https://github.com/vesoft-inc/nebula-exchange.git
   

2. Switch to the directory nebula-exchange.

   cd nebula-exchange/nebula-exchange
   

3. Package Nebula Exchange.

   mvn clean package -Dmaven.test.skip=true -Dgpg.skip -Dmaven.javadoc.skip=true
   

After the compilation is successful, you can view a directory structure similar to the following in the current directory.

.
├── README-CN.md
├── README.md
├── pom.xml
├── src
│   ├── main
│   └── test
└── target
    ├── classes
    ├── classes.timestamp
    ├── maven-archiver
    ├── nebula-exchange-2.x.y-javadoc.jar
    ├── nebula-exchange-2.x.y-sources.jar
    ├── nebula-exchange-2.x.y.jar
    ├── original-nebula-exchange-2.x.y.jar
    └── site

In the target directory, users can find the exchange-2.x.y.jar file.

When migrating data, you can refer to configuration file target/classes/application.conf.

Failed to download the dependency package¶

If downloading dependencies fails when compiling:

• Check the network settings and ensure that the network is normal.

• Modify the mirror part of Maven installation directory libexec/conf/settings.xml:

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