我正在读取星火-scala中的拼花文件,并进行计算和过滤。我想从elasticsearch中摄取最终的数据帧。我试过跟踪,但没能让它工作。at org.elasticsearch.spark.rdd.EsRDDWriter.write(EsRDDWriter.scala:67)
at org.elasticsearch.spark
,runId = 5e2adff4-855e-46c6-8592-05e3557544c6,终止于错误java.lang.ClassCastException:不能将org.apache.spark.sql.execution.streaming.LongOffset转换到org.apache.bahir.sql.streaming.mqtt.MQTTTextStreamSource.getBatch(MQTTStreamSource.scala:152) at org.apache.<
我写了一份星火作业,主要目的是写到专家系统中,然后提交,问题是当我把它提交到星星团时,火花回馈。错误用户类抛出异常: org.elasticsearch.spark.sql.DefaultSource.createRelation(Lorg/apache/spark/sql/SQLContext;(DataSource.scala:472) at org.apache.spark.sql.exe