说明.  将全局检查点之间的时间设置为指定毫秒数。无参数时，将此间隔设置为 TimeBetweenGlobalCheckpoints 的配置值（默认为 2000 毫秒）。

示例输出. 

ndb_mgm> ALL DUMP 7090
Sending dump signal with data:
0x00001bb2
Sending dump signal with data:
0x00001bb2

2019-07-31 18:03:36 [ndbd] INFO     -- Setting time between gcp : 2000

ndb_mgm> ALL DUMP 7090 10000
Sending dump signal with data:
0x00001bb2 0x00002710
Sending dump signal with data:
0x00001bb2 0x00002710

2019-07-31 18:08:01 [ndbd] INFO     -- Setting time between gcp : 10000

其他信息.  [N/A]