CAN RESULTS IN SERVER EXIT

Post-Push Fix for the following unit-tests:
1.merge_temptable_tests-t
2.merge_large_tests
3.merge_keyring_file_tests

Reviewed by: Pedro Figueiredo <pedro.figueiredo@oracle.com>
Reviewed by: Praveen Hulakund <praveenkumar.hulakund@oracle.com>