摘要:
Spark Streaming从flume 中使用Poll拉取数据时,报如下错误: Error while processing transaction. java.lang.IllegalStateException: begin() called when transaction is OPEN 阅读全文
摘要:
使用SparkSQL编写wordCount的词频统计: word.txt 文件: hello hello scala spark java sql html java hello jack jack tom tom you he he sql IDEA编写的 spark 代码: object Wor 阅读全文