目标端的trail文件损坏或误删除，如何重新进行抽取
1 重新启动目标端并关闭，查看检查点的信息：---此处是模拟trail文件被删除，复制进程读取的检查点信息
GGSCI (oracle10g1) 63> info reptb1 showch
REPLICAT REPTB1 Last Started 2014-09-16 15:35 Status STOPPED
Checkpoint Lag 00:00:00 (updated 00:00:18 ago)
Log Read Checkpoint File ./dirdat/pt000049
2014-09-16 15:34:43.058962 RBA 1210 ----查看复制进程读取的检查点时间
Current Checkpoint Detail:
Read Checkpoint #1
GGS Log Trail
Startup Checkpoint (starting position in the data source):
Sequence #: 48
RBA: 237667372
Timestamp: 2014-09-15 16:09:28.991913
Extract Trail: ./dirdat/pt
Current Checkpoint (position of last record read in the data source):
Sequence #: 49
RBA: 1210
Timestamp: 2014-09-16 15:34:43.058962
Extract Trail: ./dirdat/pt
CSN state information:
CRC: 9-CA-86-D3
Latest CSN: 2130166
Latest TXN: 2.33.820
Latest CSN of finished TXNs: 2130166
Completed TXNs: 2.33.820
Header:
Version = 2
Record Source = A
Type = 1
# Input Checkpoints = 1
# Output Checkpoints = 0
File Information:
Block Size = 2048
Max Blocks = 100
Record Length = 2048
Current Offset = 0
Configuration:
Data Source = 0
Transaction Integrity = -1
Task Type = 0
Database Checkpoint:
Checkpoint table = ogg.checkpoint
Key = 367089447 (0x15e15727)
Create Time = 2014-09-04 21:00:29
Status:
Start Time = 2014-09-16 15:35:12
Last Update Time = 2014-09-16 15:36:19
Stop Status = G
Last Result = 400
GGSCI (oracle10g1) 64>
2 插入数据用于验证：在重新指定从某个时间节点抽取时，数据未丢失：
SQL> conn oggtest/oggtest
Connected.
SQL> insert into employees1 select * from hr.employees;
107 rows created.
SQL> commit;
Commit complete.
SQL>
3 确保数据传输进程未任何的延时
GGSCI (oracle10g) 32> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXTTB1 00:00:00 00:00:10
EXTRACT RUNNING PUMPTB1 00:00:00 00:00:02
GGSCI (oracle10g) 33> info pumptb1
EXTRACT PUMPTB1 Last Started 2014-09-16 15:34 Status RUNNING
Checkpoint Lag 00:00:00 (updated 00:00:11 ago)
Log Read Checkpoint File /app/oracle/goldengate/dirdat/tb000039
2014-09-16 15:40:53.000000 RBA 30094
GGSCI (oracle10g) 34>
4 查看源端的trail文件的信息：
GGSCI (oracle10g) 34> info exttrail *
Extract Trail: ./dirdat/tb
Extract: EXTTB1
Seqno: 39
RBA: 30094
File Size: 500M
Extract Trail: ./dirdat/pb
Extract: EXTTB1
Seqno: 3
RBA: 0
File Size: 100M
Extract Trail: ./dirdat/pt
Extract: PUMPTB1
Seqno: 49
RBA: 30244
File Size: 500M
5 查看目标端复制进程读取的检查点信息：
GGSCI (oracle10g1) 65> info reptb1 showch
REPLICAT REPTB1 Last Started 2014-09-16 15:35 Status STOPPED
Checkpoint Lag 00:00:00 (updated 00:11:19 ago)
Log Read Checkpoint File ./dirdat/pt000049
2014-09-16 15:34:43.058962 RBA 1210 ---根据此时间点，重新进行抽取传输
Current Checkpoint Detail:
Read Checkpoint #1
GGS Log Trail
Startup Checkpoint (starting position in the data source):
Sequence #: 48
RBA: 237667372
Timestamp: 2014-09-15 16:09:28.991913
Extract Trail: ./dirdat/pt
Current Checkpoint (position of last record read in the data source):
Sequence #: 49
RBA: 1210
Timestamp: 2014-09-16 15:34:43.058962
Extract Trail: ./dirdat/pt
CSN state information:
CRC: 9-CA-86-D3
Latest CSN: 2130166
Latest TXN: 2.33.820
Latest CSN of finished TXNs: 2130166
Completed TXNs: 2.33.820
Header:
Version = 2
Record Source = A
Type = 1
# Input Checkpoints = 1
# Output Checkpoints = 0
File Information:
Block Size = 2048
Max Blocks = 100
Record Length = 2048
Current Offset = 0
Configuration:
Data Source = 0
Transaction Integrity = -1
Task Type = 0
Database Checkpoint:
Checkpoint table = ogg.checkpoint
Key = 367089447 (0x15e15727)
Create Time = 2014-09-04 21:00:29
Status:
Start Time = 2014-09-16 15:35:12
Last Update Time = 2014-09-16 15:36:19
Stop Status = G
Last Result = 400
GGSCI (oracle10g1) 66>
7 关闭源端的抽取进程和传输进程：
GGSCI (oracle10g) 37> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT STOPPED EXTTB1 00:00:00 00:00:05
EXTRACT STOPPED PUMPTB1 00:00:00 00:00:04
GGSCI (oracle10g) 38>
8 指定抽取进程重新抽取：
GGSCI (oracle10g) 38> alter exttb1,begin 2014-09-16 15:34:43.058962
EXTRACT altered.
GGSCI (oracle10g) 39> alter exttb1,etrollover
2014-09-16 15:56:01 INFO OGG-01520 Rollover performed. For each affected output trail of Version 10 or higher format,
after starting the source extract, issue ALTER EXTSEQNO for that trail's reader (either pump EXTRACT or REPLICAT) to move the reader's scan to the new trail file;
it will not happen automatically.
EXTRACT altered.
GGSCI (oracle10g) 40> start exttb1
Sending START request to MANAGER ...
EXTRACT EXTTB1 starting
GGSCI (oracle10g) 41> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXTTB1 00:15:28 00:00:07
EXTRACT STOPPED PUMPTB1 00:00:00 00:05:17
GGSCI (oracle10g) 42> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXTTB1 00:00:00 00:00:01
EXTRACT STOPPED PUMPTB1 00:00:00 00:05:22
GGSCI (oracle10g) 43> sh ls -ltr ./dirdat
total 464748
-rw-rw-rw- 1 oracle oinstall 1060 Sep 14 20:34 tb000032
-rw-rw-rw- 1 oracle oinstall 1222 Sep 15 10:15 tb000033
drwxr-xr-x 2 oracle oinstall 4096 Sep 15 16:32 backup
-rw-rw-rw- 1 oracle oinstall 999 Sep 15 17:54 tb000035
-rw-rw-rw- 1 oracle oinstall 1060 Sep 15 17:56 tb000036
-rw-rw-rw- 1 oracle oinstall 237667549 Sep 15 17:56 tb000037
-rw-rw-rw- 1 oracle oinstall 237667488 Sep 16 15:34 tb000038
-rw-rw-rw- 1 oracle oinstall 30094 Sep 16 15:40 tb000039
-rw-rw-rw- 1 oracle oinstall 30033 Sep 16 15:56 tb000040 ---新生成的trail文件
8 使用logdump查看是否将刚执行的SQL抽取到：
Logdump 1 >detail on
Logdump 2 >ghdr on
Logdump 3 >open ./dirdat/tb000040
Current LogTrail is /app/oracle/goldengate/dirdat/tb000040
Logdump 4 >count
LogTrail /app/oracle/goldengate/dirdat/tb000040 has 108 records
Total Data Bytes 19624
Avg Bytes/Record 181
Insert 107
Others 1
After Images 107
Average of 2 Transactions
Bytes/Trans ..... 12404
Records/Trans ... 54
Files/Trans ..... 1
*FileHeader* Partition 0
Total Data Bytes 991
Avg Bytes/Record 991
Others 1
OGGTEST.EMPLOYEES1 Partition 4
Total Data Bytes 18633
Avg Bytes/Record 174
Insert 107 ---将刚插入的数据重新又抽取到新的40这个trail文件中
After Images 107
Logdump 5 >
使数据传输进程回滚到下一个文件，并指定其从新的40trail文件开始传输
9 查看传输进程传输的检查点及时间
GGSCI (oracle10g) 45> info pumptb1 showch
EXTRACT PUMPTB1 Last Started 2014-09-16 15:34 Status STOPPED
Checkpoint Lag 00:00:00 (updated 00:11:58 ago)
Log Read Checkpoint File /app/oracle/goldengate/dirdat/tb000039
2014-09-16 15:40:53.000000 RBA 30094 ----传输的时间
Current Checkpoint Detail:
Read Checkpoint #1
GGS Log Trail
Startup Checkpoint (starting position in the data source):
Sequence #: 38
RBA: 237667488
Timestamp: 2014-09-15 16:15:16.000000
Extract Trail: /app/oracle/goldengate/dirdat/tb
Current Checkpoint (position of last record read in the data source):
Sequence #: 39
RBA: 30094
Timestamp: 2014-09-16 15:40:53.000000 ---数据源的时间点
Extract Trail: /app/oracle/goldengate/dirdat/tb
Write Checkpoint #1
GGS Log Trail
Current Checkpoint (current write position):
Sequence #: 49
RBA: 30244
Timestamp: 2014-09-16 15:51:05.796071
Extract Trail: ./dirdat/pt
CSN state information:
CRC: 91-8B-80-BC
Latest CSN: 2164509
Latest TXN: 3.4.842
Latest CSN of finished TXNs: 2164509
Completed TXNs: 3.4.842
Header:
Version = 2
Record Source = A
Type = 1
# Input Checkpoints = 1
# Output Checkpoints = 1
File Information:
Block Size = 2048
Max Blocks = 100
Record Length = 2048
Current Offset = 0
Configuration:
Data Source = 0
Transaction Integrity = 1
Task Type = 0
Status:
Start Time = 2014-09-16 15:34:41
Last Update Time = 2014-09-16 15:51:05
Stop Status = G
Last Result = 400
10 指定从新的trail开始抽取，并回滚到trail文件
GGSCI (oracle10g) 46> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXTTB1 00:00:00 00:00:03
EXTRACT STOPPED PUMPTB1 00:00:00 00:15:06
GGSCI (oracle10g) 5> alter pumptb1,extseqno 40,extrba 0
EXTRACT altered.
GGSCI (oracle10g) 6> start pumptb1
Sending START request to MANAGER ...
EXTRACT PUMPTB1 starting
11 到目标端查看，是否已经将要的数据传输到目标端：
Logdump 138 >detail on
Logdump 139 >ghdr on
Logdump 140 >open ./dirdat/pt000050
Current LogTrail is /app/oracle/goldengate/dirdat/pt000050
Logdump 141 >count
LogTrail /app/oracle/goldengate/dirdat/pt000050 has 108 records
Total Data Bytes 19670
Avg Bytes/Record 182
Insert 107
Others 1
After Images 107
Average of 2 Transactions
Bytes/Trans ..... 12427
Records/Trans ... 54
Files/Trans ..... 1
*FileHeader* Partition 0
Total Data Bytes 1037
Avg Bytes/Record 1037
Others 1
OGGTEST.EMPLOYEES1 Partition 4
Total Data Bytes 18633
Avg Bytes/Record 174
Insert 107 ----已经传输到目标端
After Images 107
Logdump 142 >
12 指定复制进程，从指定的trail文件，开始读取，启动目标端：
GGSCI (oracle10g1) 71> alter reptb1,extseqno 50
REPLICAT altered.
GGSCI (oracle10g1) 72> start reptb1
Sending START request to MANAGER ...
REPLICAT REPTB1 starting
GGSCI (oracle10g1) 80> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
REPLICAT ABENDED REPTB1 00:00:00 00:00:43
发现报如下错误： 1028有可能是将trail文件的头损坏了，不影响数据的复制，故可以跳过。
2014-09-16 16:34:23 INFO OGG-00996 Oracle GoldenGate Delivery for Oracle, reptb1.prm: REPLICAT REPTB1 started.
2014-09-16 16:34:44 ERROR OGG-01028 Oracle GoldenGate Delivery for Oracle, reptb1.prm: Incompatible record (101) in ./dirdat/pt000050, rba 1210 (getting header).
2014-09-16 16:34:44 ERROR OGG-01668 Oracle GoldenGate Delivery for Oracle, reptb1.prm: PROCESS ABENDING.
使用logdump打开对应的文件，找到第一条记录，并指定从此记录开始读取
Logdump 142 >open ./dirdat/pt000050
LogTrail /app/oracle/goldengate/dirdat/pt000050 closed
Current LogTrail is /app/oracle/goldengate/dirdat/pt000050
Logdump 143 >n
2014/09/16 16:28:49.935.447 FileHeader Len 1037 RBA 0
Name: *FileHeader*
3000 01d0 3000 0008 4747 0d0a 544c 0a0d 3100 0002 | 0...0...GG..TL..1...
0003 3200 0004 2000 0000 3300 0008 02f2 295d ff31 | ..2... ...3.....)].1
0857 3400 0026 0024 7572 693a 6f72 6163 6c65 3130 | .W4..&.$uri:oracle10
673a 3a61 7070 3a6f 7261 636c 653a 676f 6c64 656e | g::app:oracle:golden
6761 7465 3500 002a 3500 0026 0024 7572 693a 6f72 | gate5..*5..&.$uri:or
6163 6c65 3130 673a 3a61 7070 3a6f 7261 636c 653a | acle10g::app:oracle:
676f 6c64 656e 6761 7465 3600 0013 0011 2e2f 6469 | goldengate6....../di
Logdump 144 >n
___________________________________________________________________
Hdr-Ind : E (x45) Partition : . (x04)
UndoFlag : . (x00) BeforeAfter: A (x41)
RecLength : 177 (x00b1) IO Time : 2014/09/16 15:40:52.999.978
IOType : 5 (x05) OrigNode : 255 (xff)
TransInd : . (x00) FormatType : R (x52)
SyskeyLen : 0 (x00) Incomplete : . (x00)
AuditRBA : 112 AuditPos : 31156928
Continued : N (x00) RecCount : 1 (x01)
2014/09/16 15:40:52.999.978 Insert Len 177 RBA 1045
Name: OGGTEST.EMPLOYEES1
After Image: Partition 4 G b
0000 000a 0000 0000 0000 0000 00c6 0001 000a 0000 | ....................
0006 446f 6e61 6c64 0002 000c 0000 0008 4f43 6f6e | ..Donald........OCon
6e65 6c6c 0003 000c 0000 0008 444f 434f 4e4e 454c | nell........DOCONNEL
0004 0010 0000 000c 3635 302e 3530 372e 3938 3333 | ........650.507.9833
0005 0015 0000 3139 3939 2d30 362d 3231 3a30 303a | ......1999-06-21:00:
3030 3a30 3000 0600 0c00 0000 0853 485f 434c 4552 | 00:00........SH_CLER
4b00 0700 0a00 0000 0000 0000 03f7 a000 0800 0aff | K...................
Column 0 (x0000), Len 10 (x000a)
Column 1 (x0001), Len 10 (x000a)
Column 2 (x0002), Len 12 (x000c)
Column 3 (x0003), Len 12 (x000c)
Column 4 (x0004), Len 16 (x0010)
Column 5 (x0005), Len 21 (x0015)
Column 6 (x0006), Len 12 (x000c)
Column 7 (x0007), Len 10 (x000a)
Column 8 (x0008), Len 10 (x000a)
Column 9 (x0009), Len 10 (x000a)
Column 10 (x000a), Len 10 (x000a)
Logdump 145 >
GGSCI (oracle10g1) 3> start reptb1
Sending START request to MANAGER ...
REPLICAT REPTB1 starting
GGSCI (oracle10g1) 4> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
REPLICAT RUNNING REPTB1 00:00:00 00:00:08
GGSCI (oracle10g1) 8> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
REPLICAT RUNNING REPTB1 00:00:00 00:00:03
GGSCI (oracle10g1) 9> info reptb1
REPLICAT REPTB1 Last Started 2014-09-16 16:45 Status RUNNING
Checkpoint Lag 00:00:00 (updated 00:00:00 ago)
Log Read Checkpoint File ./dirdat/pt000050
2014-09-16 15:40:52.992044 RBA 30079
查看对应的数据：
SQL> conn oggtest/oggtest
Connected.
SQL> select count(*) from employees1;
COUNT(*)
----------
0
SQL> /
COUNT(*)
----------
107
SQL>
已经复制过来。
来自 “ ITPUB博客 ” ，链接：http://blog.itpub.net/11783123/viewspace-2125613/，如需转载，请注明出处，否则将追究法律责任。
转载于:http://blog.itpub.net/11783123/viewspace-2125613/
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