查找OGG trail file中是否存在相关记录的命令
如下是查找一个insert into USERA.TABLE1是否存在于OGG源头的trail file中，
同时，本文也可以视为OGG 目的端rep进程报 SQL error 1403 mapping USERA.TABLE1 to USERA.TABLE1的问题诊断思路。
如下诊断用到了ogg自带的logdump工具
拿USERA.TABLE1表来说，我们通过查询 rep进程的丢弃文件(dsc文件，也就是discard文件，位于$OGG_HOME/dirrpt下)中该表的报错信息，如下：
确认有如下记录（仅仅拿一个记录为例）肯定是没有insert到数据库中的，
USERA.TABLE1 表中id=53874605的记录,
然后在源头数据库上查出ID,之所以查询出ID是因为在logdump的输出中，这个值比较直观：
select ID from USERA.TABLE1 where id=53874605
获得id的值：
WW151124160530101510740104947088A
以此值到源头trailfile 中进行搜索，注意如下的搜索方法：
oracle@host2:/gg/ggs$ logudump
Oracle GoldenGate Log File Dump Utility for Oracle
Version 11.2.1.0.27 19591627 20148126
Copyright (C) 1995, 2014, Oracle and/or its affiliates. All rights reserved.
Logdump 644 >open /gg/ggs/dirdat/sd021739
ghdr on
detail on
detail data
ggstoken on
usertoken on
ggstokens detail
filter include FILENAME USERA.TABLE1
filter include STRING 'WW1511241605301015107401049470856A'
filter match all
show filter---->此处是命令的结尾,然后敲回车即可
Current LogTrail is /gg/ggs/dirdat/sd021739
Logdump 645 >Logdump 646 >Logdump 647 >Logdump 648 >Logdump 649 >Logdump 650 >Logdump 651 >Logdump 652 >Logdump 653 >Logdump 654 >
Data filters are ENABLED
Include Match ALL
Filename-0 : USERA.TABLE1
String-0 : (34), CaseSensitive
4648 3135 3131 3234 3136 3035 3330 3130 3135 3130 | WW151124160530101510
3734 3031 3034 3934 3730 3835 3641 | 7401049470888A
Exclude Match ANY
Logdump 655 >n
Scanned 10000 records, RBA 5742984, 2015/11/14 03:43:16.000.000
Scanned 20000 records, RBA 11498403, 2015/11/14 03:48:10.000.000
Scanned 30000 records, RBA 17287262, 2015/11/14 03:53:32.000.000
Scanned 40000 records, RBA 22759004, 2015/11/14 03:58:06.000.000
Scanned 50000 records, RBA 28498882, 2015/11/14 04:03:16.000.000
Scanned 60000 records, RBA 34247854, 2015/11/14 04:07:40.000.000
Scanned 70000 records, RBA 40072024, 2015/11/14 04:12:40.000.000
Scanned 80000 records, RBA 45960655, 2015/11/14 04:16:56.000.000
Filtering suppressed 87002 records
Logdump 656 >nt
LogTrail /gg/ggs/dirdat/sd021739 closed
Current LogTrail is /gg/ggs/dirdat/sd021740
Logdump 657 >n
Scanned 10000 records, RBA 5833212, 2015/11/14 04:24:45.000.000
Scanned 20000 records, RBA 11584249, 2015/11/14 04:29:13.000.000
Scanned 30000 records, RBA 17067992, 2015/11/14 04:32:52.000.000
Scanned 40000 records, RBA 22918136, 2015/11/14 04:36:57.000.000
Scanned 50000 records, RBA 28712547, 2015/11/14 04:41:22.000.000
Scanned 60000 records, RBA 34567058, 2015/11/14 04:46:24.000.000
Scanned 70000 records, RBA 40357769, 2015/11/14 04:51:08.000.000
Scanned 80000 records, RBA 46148680, 2015/11/14 04:55:49.000.000
Filtering suppressed 86515 records
Logdump 658 >exit
如上的结果显示：USERA.TABLE1 中 id=53874605的记录不在源头的trail file中，也就是说：
问题得到定性：ogg源头的抽取进程漏抽数据。
插曲：
凭什么就定位到/gg/ggs/dirdat/sd021739这个源头的trail file？要知道rep进程的丢弃文件中只会显示目的端的trailfile号。熟悉ogg的人都知道，源头trail file 号与目的端trail file号没有任何的等价关系，也没有加1 或者减1的关系。
这里就需要去看源头dp（datapump进程）的rpt文件，根据大体的时间，获得如下信息：
2015-11-14 03:09:57 INFO OGG-01026 Rolling over remote file /ogg/ggs/dirdat/pa059719.
Switching to next trail file /gg/ggs/dirdat/sd021739 at 2015-11-14 03:37:59 due to EOF, with current RBA 49999824
Opened trail file /gg/ggs/dirdat/sd021739 at 2015-11-14 03:37:59
2015-11-14 03:56:52 INFO OGG-01026 Rolling over remote file /ogg/ggs/dirdat/pa059720.
Switching to next trail file /gg/ggs/dirdat/sd021740 at 2015-11-14 04:20:08 due to EOF, with current RBA 49999149
Opened trail file /gg/ggs/dirdat/sd021740 at 2015-11-14 04:20:08
上面的/gg/ggs/dirdat/sd021739就是源头的trail文件号。
