Several proc sort procedures in my code properly sort datasets with a large number of observations (30 million +). However, once it reaches a certain dataset, the proc sort stalls. The program doesn't crash, the log doesn't update, and the dataset doesn't sort. The locked outfile file appears in the output libname location, however the size is 0 kbs. This is a simple procedure: proc sort, by variables, and run command. This dataset is quite larger than the others, but not by much. The by variables exist and have normal values. Any clue as to what may be happening? Thanks! Rahul
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