答复: How to deal with string column data for spark mlib?

Hi spark dev, I am using spark 2 to write orc file to hdfs. I have one questions about the savemode. My use case is this. When I write data into hdfs. If one task failed I hope the file that the task created should be delete and the retry task can write all data, that is to s

question about the data frame save mode to make the data exactly one

Hi spark dev, I am using spark 2 to write orc file to hdfs. I have one questions about the savemode. My use case is this. When I write data into hdfs. If one task failed I hope the file that the task created should be delete and the retry task can write all data, that is to