Sending spring boot disk to start

I am pretty new to spark and I am trying to try spark submit. I created an application in spring boot using mvn package

to create a jar. But when I try to submit to the jar spark-submit

, it cannot find the Main class . But the main class is present in the bank.

 spark-submit --class com.dip.sparkapp.SparkappApplication --master local target/sparkapp-0.0.1-SNAPSHOT.jar

      

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3 answers


We ran into the same problem, in fact, on the same day you posted this. Our solutions were to use a shadow maven plugin to edit our assembly. We found that when packaging with the spring-boot-maven plugin, it nested our classes in BOOT-INF / classes that we didn't like. I will insert the relevant section so you can try it out in your application - good luck!



<build>
   <plugins>
      <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <dependencies>
                <dependency>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <version>${spring-boot-version}</version>
                </dependency>
            </dependencies>
            <configuration>
                <keepDependenciesWithProvidedScope>false</keepDependenciesWithProvidedScope>
                <createDependencyReducedPom>false</createDependencyReducedPom>
                <filters>
                    <filter>
                        <artifact>*:*</artifact>
                        <excludes>
                            <exclude>META-INF/*.SF</exclude>
                            <exclude>META-INF/*.DSA</exclude>
                            <exclude>META-INF/*.RSA</exclude>
                        </excludes>
                    </filter>
                </filters>
                <transformers>
                    <transformer
                            implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                        <resource>META-INF/spring.handlers</resource>
                    </transformer>
                    <transformer
                            implementation="org.springframework.boot.maven.PropertiesMergingResourceTransformer">
                        <resource>META-INF/spring.factories</resource>
                    </transformer>
                    <transformer
                            implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                        <resource>META-INF/spring.schemas</resource>
                    </transformer>
                    <transformer
                            implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
                    <transformer
                            implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                        <mainClass>${start-class}</mainClass>
                    </transformer>
                </transformers>
            </configuration>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

      

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This works for me



<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
    <manifestEntries>
        <Main-Class>packagename.classname</Main-Class>
    </manifestEntries>
</transformer>

      

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The above plugin to create a shaded jar worked well for me. But the entityManager is not configurable when I deploy my spring loaded jar using. / spark-submit. I am using auto-configuration with @SpringBootApplication.

spring boot version: 2.1.2. RELEASE spark version: used dependency 2.3.2: spring-boot-starter-data-jpa

Please help if you've used the same in your Springboot application.

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