3
org.apache.spark.mllib.linalg.Vector가 포함 된 dataframe을 열에 저장해야한다는 요구 사항이 있습니다. 데이터 프레임에서 카산드라에 테이블을 만드는 동안 오류가 발생합니다.데이터 프레임의 org.apache.spark.mllib.linalg.Vector를 cassandra에 저장하는 방법
java.lang.Exception: Cassandra Writer Failed. java.lang.IllegalArgumentException: Unsupported type: [email protected]
at com.datastax.spark.connector.types.ColumnType$.unsupportedType$1(ColumnType.scala:132)
at com.datastax.spark.connector.types.ColumnType$.fromSparkSqlType(ColumnType.scala:155)
at com.datastax.spark.connector.mapper.DataFrameColumnMapper$$anonfun$1.apply(DataFrameColumnMapper.scala:18)
at com.datastax.spark.connector.mapper.DataFrameColumnMapper$$anonfun$1.apply(DataFrameColumnMapper.scala:16)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
at scala.collection.immutable.List.foreach(List.scala:318)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
at scala.collection.AbstractTraversable.map(Traversable.scala:105)
at com.datastax.spark.connector.mapper.DataFrameColumnMapper.newTable(DataFrameColumnMapper.scala:16)
at com.datastax.spark.connector.cql.TableDef$.fromDataFrame(Schema.scala:206)