uint64_t vef_failed; /* total objects of verification failed */
uint64_t unexp_unget; /* total objects which is unexpired but not get */
uint64_t exp_get; /* total objects which is expired but get */
uint64_t vef_failed; /* total objects of verification failed */
uint64_t unexp_unget; /* total objects which is unexpired but not get */
uint64_t exp_get; /* total objects which is expired but get */