func (s *Hasher) HashJob(jobID string) uint64 {
	return uint64(adler32.Checksum([]byte(jobID))) % s.JobModulus
}
func (s *Hasher) HashJob(jobID string) uint64 {
	return uint64(adler32.Checksum([]byte(jobID))) % s.JobModulus
}
// HashJob computes and returns the hash of a job.