使用spark api首先将顶点写入orientDB，然后写入edge。报告了错误“ com.orientechnologies.orient.core.exception.OCommandExecutionException：类Egraphx已经存在”。
//
使用Spark Cluster-Client模式
orientDB版本：3.0.13
星火版本：2.2.1
org.apache.spark
spark-orientdb-2.2.1_2.11
1.4
df_vex
.write
.format("org.apache.spark.orientdb.graphs")
.option("dburl", "remote:10.145.77.105:8424/addressList")
.option("user", "admin")
.option("password", "admin")
.option("vertextype", "Vgraphx")
.mode(SaveMode.Overwrite)
.save()
//
df_addressSelect
.select("phone", "num", "name")
.toDF("src", "dst", "name")
.write
.format("org.apache.spark.orientdb.graphs")
.option("dburl", "remote:10.145.77.105:8424/addressList")
.option("user", "admin")
.option("password", "admin")
.option("vertextype", "Vgraphx")
.option("edgetype", "Egraphx")
.mode(SaveMode.Overwrite)
.save()