描述。  将全局检查点之间的时间设置为指定的毫秒数。不带参数，将此间隔设置为配置值 TimeBetweenGlobalCheckpoints （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

附加信息。  [不适用]