Hi, Would like to check whether Sqoop supports this type of ingestion: consider we have records with range [1,12], and we have 3 mappers. So in default, the 3 mappers will be assigned [1,4], [5, 8], [9, 12].
Not sure whether we can split the range to smaller one, like, [1], [2], [3], ..., [12]. But still using 3 mappers instead of 12 mappers. We want this feature because: (1) if configured smaller mapper number, each mapper will be assigned a larger range and take much longer time to finish, and the infra may kill long running query; (2) But if we configured a larger mapper number, each mapper has a smaller range, but meanwhile we generates lots of network traffic to the database, which will also be bad. One good way we want is: still 12 ranges, but 3 mappers, and at most 3 concurrent connections at most. Appreciate any help here. -Wei
