删除checkpoing文件夹

src/main/scala/com/aliyun/odps/spark/examples/makedata/makedata_09_user2redis_freq.scala

@@ -23,6 +23,7 @@ object makedata_09_user2redis_freq {
       .appName(this.getClass.getName)
       .getOrCreate()
     val sc = spark.sparkContext
+    MyHdfsUtils.delete_hdfs_path("/dw/recommend/model/99_zhangbo_checkpoint/")
     sc.setCheckpointDir("/dw/recommend/model/99_zhangbo_checkpoint/")
 
     // 1 读取参数