Question - How can you skip bad records in Hadoop ?
Answer -
Hadoop can provide an option wherein a particular set of lousy input records could be skipped while processing map inputs. SkipBadRecords class in Hadoop offers an optional mode of execution in which the bad records can be detected and neglected in multiple attempts. This may happen due to the presence of some bugs in the map function. The user has to manually fix it, which may sometimes be possible because the bug may be in third-party libraries. With the help of this feature, only a small amount of data is lost, which may be acceptable because we are dealing with a large amount of data.