Here are the index configurations:
This defaults to no and throws an exception if the index doesn't exist. If this is set to yes, it returns an empty dataset when the index doesn't exist.
Specifies how ES-Hadoop should react when missing fields are found. It can take one of the following three values:
ignore: This indicates that no validation is performedwarn: This specifies that a warn message is loggedstrict: This denotes that an exception is thrown