DATASET_TOO_MANY_FILES exception while running a batch program

Question

Hi Pals,
Can you pls help on the exception above?
When we run a particular batch daily, this ABAp dump with exception occurs. There are many file transfers and accesses happening while this job runs. COuld that be a problem?
We tried changing the job timing, but still encountering the same problem.
Hope you will help urgently.
Thanks
Leeza Thalakottur

Answer 1

First check that you are doing a "close dataset" on any files you have finished with in your code... I've seen a lot of programs that don't do this specifically... you could also open a dataset, load the contents into an internal table, and close the dataset and then process the internal table (rather than having the dataset open for a long time during processing). 
You can also stick a "catch exception" after the "open dataset" which may pick up the problem you are having e.g. something like (not syntax checked):
open dataset p_fname
  for input in text mode encoding default. "Unicode
catch system-exceptions dataset_cant_open = 4.
  do.
    read dataset p_fname into l_data.
    if sy-subrc eq 0.
      append l-data to lt_data.
    else.
      exit.
    endif.
  enddo.
endcatch.
if sy-subrc = 4.
*" etc
Jonathan