raise exception if cache is not big enough to hold complete result set from scanning
raise exception if cache is not big enough to hold complete result set from scanning

simonvh/gimmemotifs,simonvh/gimmemotifs,simonvh/gimmemotifs,simonvh/gimmemotifs,simonvh/gimmemotifs,simonvh/gimmemotifs,simonvh/gimmemotifs