- nebula 版本： 2.0 beta
- 部署方式（分布式 / 单机 / Docker / DBaaS）：docker
- 硬件信息
- 磁盘（ 必须为 SSD ，不支持 HDD）SSD
- CPU、内存信息：40C 126G
- 出问题的 Space 的创建方式：执行
describe space xxx;
- 问题的具体描述
你好，我使用的spark exchang来导入数据，spark使用的docker单机部署，spark版本是2.2.1，hadoop版本是2.8.2，exchange是在spark的容器内编译的，使用exchange提交导入任务时，会报如下错误：
> spark-submit --class com.vesoft.nebula.exchange.Exchange --master local ./nebula-spark-utils/nebula-exchange/target/nebula-exchange-2.0.0.jar -c nebula_application.conf
21/01/18 11:30:26 INFO state.StateStoreCoordinatorRef: Registered StateStoreCoordinator endpoint
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/spark/sql/sources/v2/StreamWriteSupport
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:370)
at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
at scala.collection.convert.Wrappers$JIteratorWrapper.next(Wrappers.scala:43)
at scala.collection.Iterator$class.foreach(Iterator.scala:893)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1336)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at scala.collection.TraversableLike$class.filterImpl(TraversableLike.scala:247)
at scala.collection.TraversableLike$class.filter(TraversableLike.scala:259)
at scala.collection.AbstractTraversable.filter(Traversable.scala:104)
at org.apache.spark.sql.execution.datasources.DataSource$.lookupDataSource(DataSource.scala:526)
at org.apache.spark.sql.execution.datasources.DataSource.providingClass$lzycompute(DataSource.scala:87)
at org.apache.spark.sql.execution.datasources.DataSource.providingClass(DataSource.scala:87)
at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:302)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:178)
at org.apache.spark.sql.DataFrameReader.json(DataFrameReader.scala:333)
at org.apache.spark.sql.DataFrameReader.json(DataFrameReader.scala:279)
at com.vesoft.nebula.exchange.reader.JSONReader.read(FileBaseReader.scala:67)
at com.vesoft.nebula.exchange.Exchange$.com$vesoft$nebula$exchange$Exchange$$createDataSource(Exchange.scala:219)
at com.vesoft.nebula.exchange.Exchange$$anonfun$main$2.apply(Exchange.scala:124)
at com.vesoft.nebula.exchange.Exchange$$anonfun$main$2.apply(Exchange.scala:116)
at scala.collection.immutable.List.foreach(List.scala:381)
at com.vesoft.nebula.exchange.Exchange$.main(Exchange.scala:116)
at com.vesoft.nebula.exchange.Exchange.main(Exchange.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:775)
at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:180)
at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:205)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:119)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.lang.ClassNotFoundException: org.apache.spark.sql.sources.v2.StreamWriteSupport
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 47 more
21/01/18 11:30:26 INFO spark.SparkContext: Invoking stop() from shutdown hook
exchange的使用文档有说明使用限制，请查看spark的版本限制
Exchange使用的Spark版本是2.4.4，该版本的SparkSQL读取json文件时使用DataSourceV2。 DataSourceV2是Spark2.3出的新特性，所以你服务端Spark版本2.2.1不具备DataSourceV2，也就不存在org/apache/spark/sql/sources/v2/StreamWriteSupport 这个类。
