Hi,

I'm moving data from one collection to another in other cluster using Spark. the data's schema is not consistent(I mean that has few schema's in a single collection with little variations). When I try to read data from spark, the sampling is unable to get all the schema's of the data and throwing the below error.

com.mongodb.spark.exceptions.MongoTypeConversionException: Cannot cast ARRAY into a NullType (value: BsonArray{values=[
{ "type" : "GUEST_FEE", "appliesPer" : "GUEST_PER_NIGHT", "description" : null, "minAmount" : 33, "maxAmount" : 33 }
]})

Is it a known issue or any solution for this? 

Thanks,

Srini