配置了一套OGG，进程都在正常运行，但是测试新插入的数据无法同步到目标端。未发现有lag延时，日志里也无任何报错，trandata也是有的。rba也在一直变化，stats也有数据显示。检查时发现抽取进程的Recovery Checkpoint跟Current Checkpoint的时间不一致，但是我在数据库里并未查到长事务。请问这种要怎么处理。

Read Checkpoint #1

  Oracle Threaded Redo Log

  Startup Checkpoint (starting position in the data source):
    Timestamp: 2019-07-03 23:53:56.000000
    SCN: 3088.1555212182 (13264414222230)

  Recovery Checkpoint (position of oldest unprocessed transaction in the data source):
    Timestamp: 2019-07-04 01:53:25.000000
    SCN: 3088.1573595104 (13264432605152)

  Current Checkpoint (position of last record read in the data source):
    Timestamp: 2019-07-04 10:16:54.000000
    SCN: 3088.1664330436 (13264523340484)

  BR Previous Recovery Checkpoint:
    Timestamp: 2019-07-04 00:25:20.853910
    SCN: 0.0 (0)

  BR Begin Recovery Checkpoint:
    Timestamp: 2019-07-04 06:18:18.000000
    SCN: 3088.1613129930 (13264472139978)

  BR End Recovery Checkpoint:
    Timestamp: 2019-07-04 08:25:21.000000
    SCN: 3088.1631166624 (13264490176672)