问题描述：ogg启动抓取进程时报错OGG-01044，如下所示：
源端：oracle 10.2.0.4 64位
异常重现：
GGSCI (leo-10g-ogg) 4> start exta

Sending START request to MANAGER ...
EXTRACT EXTA starting


GGSCI (leo-10g-ogg) 5> info all

Program     Status      Group       Lag           Time Since Chkpt

MANAGER    RUNNING                                           
EXTRACT     STOPPED     DP1         00:00:00      01:08:12    
EXTRACT     ABENDED     EXTA        157:47:58     00:10:37  
2022-12-11 13:44:37  ERROR   OGG-01044  The trail './dirdat/ta' is not assigned to extract 'EXTA'. Assign the trail to the extract with the command "ADD EXTTRAIL/RMTTRAIL ./dirdat/ta, EXTRACT EXTA.

2022-12-11 13:44:37  ERROR   OGG-01668  PROCESS ABENDING.

解决过程：
GGSCI (leo-10g-ogg) 8> stop exta
EXTRACT EXTA is already stopped.

GGSCI (leo-10g-ogg) 3> add exttrail ./dirdat/ta,extract exta    
EXTTRAIL added.
GGSCI (leo-10g-ogg) 5> start exta
EXTRACT EXTA is already running.


GGSCI (leo-10g-ogg) 6> info all

Program     Status      Group       Lag           Time Since Chkpt

MANAGER    RUNNING                                           
EXTRACT     ABENDED     DP1         00:00:00      01:14:55    
EXTRACT     RUNNING     EXTA        00:00:00      00:00:01