The tombstone lifetime must be at least two days and the garbage collection interval must be greater than zero hours. The tombstone lifetime, when expressed in hours, must also be at least three times the garbage collection interval.

• 逻辑删除的存留时间必须至少为两天，垃圾收集间隔必须大于零小时。如果逻辑删除的存留时间以小时为单位，则还必须至少为垃圾收集间隔的三倍。