Consider a scenario where the number of records to be processed in a batch is 3000, the number of threads that you configured is 4, and the block size is 250. The MDM Hub divides the total number of records by the block size, which results in 12 blocks of 250 records each. The MDM Hub then assigns a block to each thread for processing. When a thread completes processing a block, the next block in the queue is assigned to it. The MDM Hub continues assigning blocks to threads that free up, until all blocks are processed.