OGG的PURGEOLDEXTRACTS不能工作问题的解决

在配置OGG的清理老的trail文件的时候，设置了两行配置：

PURGEOLDEXTRACTS /ogg/dirdat/horcl/hz*,USECHECKPOINTS,MINKEEPDAYS 2

PURGEOLDEXTRACTS /ogg/dirdat/aorcl/ar*,USECHECKPOINTS,MINKEEPDAYS 2

但是发现第二行不起作用

检查参数文件，发现extract参数文件中配置的参数文件的exttrail配置如下：

EXTTRAIL ./dirdat/aorcl/ar

同时发现e_aorcl这个extract对应了两个exttrail

 GGSCI (ncrac1) 8>  info exttrail *     

        Extract Trail: /ogg/dirdat/aorcl/ar 

        Seqno Length: 6 

    Flip Seqno Length: yes 

              Extract: E_AORCL 

                Seqno: 0 

                  RBA: 0 

            File Size: 500M 

        Extract Trail: ./dirdat/aorcl/ar 

        Seqno Length: 9 

    Flip Seqno Length: no 

              Extract: E_AORCL 

                Seqno: 20 

                  RBA: 136368447 

            File Size: 500M 

停掉extract删除了对于的exttrail 

GGSCI (ncrac1) 13> delete exttrail /ogg/dirdat/aorcl/ar extract e_aorcl

Deleting extract trail /ogg/dirdat/aorcl/ar for extract E_AORCL

同时，在mgr中加入了一行, 文件路径与extract参数中对应：

PURGEOLDEXTRACTS ./dirdat/aorcl/ar*,USECHECKPOINTS,MINKEEPDAYS 2

之后refresh mgr之后，工作正常

2019-04-08T16:57:26.686+0800  INFO    OGG-00957  Oracle GoldenGate Manager for Oracle, mgr.prm:  Purged old extract file '/ogg/dirdat/aorcl/ar000000013', applying UseCheckPoints purge rule: Oldest Chkpt Seqno 21 > 13.

2019-04-08T16:57:26.719+0800  INFO    OGG-00957  Oracle GoldenGate Manager for Oracle, mgr.prm:  Purged old extract file '/ogg/dirdat/aorcl/ar000000014', applying UseCheckPoints purge rule: Oldest Chkpt Seqno 21 > 14.