假设我正在从RDBMS读取表,并用HDFS编写它。作业成功完成48%,之后由于某些原因失败。下一步该怎么做?aa我们不能从头开始阅读,因为这会浪费时间。那么,如何只读取剩余的记录呢?
Suppose i am reading a table from RDBMS and writing it in HDFS. Job is completed 48% successfully and after that it fails due to some reasons. What should be the next course of action here ? aa we cannot start reading from start again because it will be waste of time . so how to read only remaining records ?