java.lang.NoSuchMethodError: scala.reflect.api.JavaUniverse.runtimeMirror(Ljava/lang/ClassLoader;) :Sparkcassandra 连接器

Question

我一直在使用 Spark 1.6 和 Cassandra connector 1.4.3 从 spark 向 cassandra 写入数据。

现在，我们升级到Spark 2.1.0，我尝试升级cassandra connector to 2.0.0-M3，但它返回的错误如下：-

java.lang.NoSuchMethodError: scala.reflect.api.JavaUniverse.runtimeMirror(Ljava/lang/ClassLoader;)Lscala/reflect/api/JavaMirrors$JavaMirror; 在 com.datastax.spark.connector.util.JavaApiHelper$.mirror(JavaApiHelper.scala:25) 在 com.datastax.spark.connector.util.JavaApiHelper$.getTypeTag(JavaApiHelper.scala:29) 在 com.datastax.spark.connector.util.JavaApiHelper.getTypeTag(JavaApiHelper.scala) 在 com.datastax.spark.connector.japi.CassandraJavaUtil.typeTag(CassandraJavaUtil.java:159) 在 com.datastax.spark.connector.japi.CassandraJavaUtil.mapToRow（CassandraJavaUtil.java:1172） 在 com.datastax.spark.connector.japi.CassandraJavaUtil.mapToRow（CassandraJavaUtil.java:1205） 在 com.datastax.spark.connector.japi.CassandraJavaUtil.mapToRow（CassandraJavaUtil.java:1222） 在 com.cisco.cmcdp.EBdoUtils.upsertToJobAuditTable(EBdoUtils.java:370) 在 com.cisco.cmcdp.EBdoContactPublisher.main(EBdoContactPublisher.java:245) 在 sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 在 sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 在 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 在 java.lang.reflect.Method.invoke(Method.java:606) 在 org.apache.spark.deploy.yarn.ApplicationMaster$$anon$2.run(ApplicationMaster.scala:637)

Pom.xml：

    <!-- Spark and Spark SQL, Hive Dependencies -->
     <dependency>
        <groupId>org.apache.spark</groupId>
        <artifactId>spark-core_2.11</artifactId>
        <version>2.1.0-mapr-1703</version>
                    <exclusions>
            <exclusion>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.apache.spark</groupId>
        <artifactId>spark-sql_2.11</artifactId>
        <version>2.1.0-mapr-1703</version>
                    <exclusions>
            <exclusion>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.apache.spark</groupId>
        <artifactId>spark-hive_2.11</artifactId>
        <version>2.1.0-mapr-1703</version>
                    <exclusions>
            <exclusion>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.apache.spark</groupId>
        <artifactId>spark-streaming_2.11</artifactId>
        <version>2.1.0-mapr-1703</version>
                    <exclusions>
            <exclusion>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
            </exclusion>
        </exclusions>
    </dependency>


    <!--Spark Cassandra Connector -->
    <dependency>
        <groupId>com.datastax.cassandra</groupId>
        <artifactId>cassandra-driver-core</artifactId>
        <version>3.0.0</version>
        <exclusions>
            <exclusion>
                <groupId>org.xerial.snappy</groupId>
                <artifactId>snappy-java</artifactId>
            </exclusion>
            <exclusion>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

    <dependency>
        <groupId>com.datastax.cassandra</groupId>
        <artifactId>cassandra-driver-mapping</artifactId>
        <version>3.0.0</version>
        <exclusions>
            <exclusion>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

    <dependency>
        <groupId>org.apache.cassandra</groupId>
        <artifactId>cassandra-clientutil</artifactId>
        <version>2.0.0</version>

        <exclusions>
            <exclusion>
                <groupId>org.xerial.snappy</groupId>
                <artifactId>snappy-java</artifactId>
            </exclusion>
            <exclusion>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

    <dependency>
        <groupId>com.datastax.spark</groupId>
        <artifactId>spark-cassandra-connector_2.10</artifactId>
        <version>2.0.0-M3</version>
            <exclusions>
            <exclusion>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

    <dependency>
        <groupId>com.datastax.spark</groupId>
        <artifactId>spark-cassandra-connector_2.10</artifactId>
        <version>2.0.0-M3</version>
        <exclusions>
            <exclusion>
                <groupId>com.google.guava</groupId>
                <artifactId>guava</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

请建议Cassandra连接器的适当方式和版本。

问候， 里沙布

Answer 1

这个问题主要是由于使用了不合适的 Scala 版本，您的类路径中可能混合了 Scala 2.10 和 Scala 2.11 库。确保您使用的是 Spark 2.x、Spark Cassandra Connector 2.x 和 Scala 2.11（虽然支持 Scala 2.10，但最好使用 Scala 2.11）。看看下面的工作 Maven 配置 -

    <dependency>
        <groupId>org.apache.spark</groupId>
        <artifactId>spark-core_2.11</artifactId>
        <version>2.1.0</version>
        <exclusions>
            <exclusion>
                <groupId>commons-codec</groupId>
                <artifactId>commons-codec</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.apache.spark</groupId>
        <artifactId>spark-sql_2.11</artifactId>
        <version>2.1.1</version>
        <exclusions>
            <exclusion>
                <groupId>commons-codec</groupId>
                <artifactId>commons-codec</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.apache.spark</groupId>
        <artifactId>spark-streaming_2.11</artifactId>
        <version>2.1.1</version>
    </dependency>
    <dependency>
        <groupId>com.datastax.spark</groupId>
        <artifactId>spark-cassandra-connector_2.11</artifactId>
        <version>2.0.1</version>
    </dependency>   
    <dependency>
        <groupId>commons-codec</groupId>
        <artifactId>commons-codec</artifactId>
        <version>1.10</version>
    </dependency>

希望对你有帮助。