OGG-extract程式對應的多餘trail檔案的刪除
goldengate的官方文件中說，每個程式對應一個（組）trail檔案，每個trail檔案只對應一個程式。
但實際使用時，由於誤操作而給extract程式e_tmp新增了兩個trail檔案（組），下面實驗是刪除方法，
即停掉extract程式後執行delete exttrail ./dirdat/xx
1)切換到GG_HOME目錄，檢視程式
[oracle@rhlinux ogg]$ pwd
/u02/ogg
[oracle@rhlinux ogg]$ ./ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 11.2.1.0.1 OGGCORE_11.2.1.0.1_PLATFORMS_120423.0230_FBO
Linux, x86, 32bit (optimized), Oracle 11g on Apr 23 2012 08:09:25
Copyright (C) 1995, 2012, Oracle and/or its affiliates. All rights reserved.
GGSCI (rhlinux) 1> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXT_1 00:00:00 00:00:01
EXTRACT RUNNING E_TMP 00:00:00 00:00:06
EXTRACT RUNNING PUMP_1 00:00:00 00:00:03
EXTRACT RUNNING P_TMP 00:00:00 00:00:01
GGSCI (rhlinux) 9> exit
2）檢視trail檔案
[oracle@rhlinux ogg]$ cd dirdat
[oracle@rhlinux dirdat]$ ls -lrt
total 616
-rw-rw-rw- 1 oracle oinstall 48965 Jul 14 14:33 e1000000
-rw-rw-rw- 1 oracle oinstall 13514 Jul 14 15:14 e1000001
-rw-rw-rw- 1 oracle oinstall 1061 Jul 14 15:16 e1000002
-rw-rw-rw- 1 oracle oinstall 1061 Jul 14 15:19 e1000003
-rw-rw-rw- 1 oracle oinstall 320441 Jul 15 21:49 tp000000
-rw-rw-rw- 1 oracle oinstall 1473 Jul 15 22:01 tq000000
-rw-rw-rw- 1 oracle oinstall 174887 Jul 16 01:52 e1000004
-rw-rw-rw- 1 oracle oinstall 38888 Jul 16 02:20 tp000001
-rw-rw-rw- 1 oracle oinstall 1490 Jul 16 02:21 tp000002
3）修改mgr程式，將過期trail檔案刪除
[oracle@rhlinux dirdat]$ cd ..
[oracle@rhlinux ogg]$ ./ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 11.2.1.0.1 OGGCORE_11.2.1.0.1_PLATFORMS_120423.0230_FBO
Linux, x86, 32bit (optimized), Oracle 11g on Apr 23 2012 08:09:25
Copyright (C) 1995, 2012, Oracle and/or its affiliates. All rights reserved.
GGSCI (rhlinux) 1> stop *
Sending STOP request to EXTRACT EXT_1 ...
Request processed.
Sending STOP request to EXTRACT E_TMP ...
Request processed.
Sending STOP request to EXTRACT PUMP_1 ...
Request processed.
Sending STOP request to EXTRACT P_TMP ...
Request processed.
GGSCI (rhlinux) 2> stop mgr
Manager process is required by other GGS processes.
Are you sure you want to stop it (y/n)? y
Sending STOP request to MANAGER ...
Request processed.
Manager stopped.
GGSCI (rhlinux) 3> edit params mgr
GGSCI (rhlinux) 4> view params mgr
port 7811
dynamicportlist 7812-7820
autorestart extract *,waitminutes 2,retries 3
PURGEOLDEXTRACTS ./dirdat/*, USECHECKPOINTS, MINKEEPHOURS 1 --此行是新新增的內容，表示超過一小時且超過讀檢查點的資料自動刪除
GGSCI (rhlinux) 5> start mgr
Manager started.
GGSCI (rhlinux) 6> start *
Sending START request to MANAGER ...
EXTRACT EXT_1 starting
Sending START request to MANAGER ...
EXTRACT E_TMP starting
Sending START request to MANAGER ...
EXTRACT PUMP_1 starting
Sending START request to MANAGER ...
EXTRACT P_TMP starting
GGSCI (rhlinux) 7> exit
4）檢視刪除效果
[oracle@rhlinux ogg]$ cd dirdat
[oracle@rhlinux dirdat]$ ls
e1000004 tp000001 tp000002 tq000000
[oracle@rhlinux dirdat]$ ls -lrt
total 224
-rw-rw-rw- 1 oracle oinstall 1473 Jul 15 22:01 tq000000
-rw-rw-rw- 1 oracle oinstall 174887 Jul 16 01:52 e1000004
-rw-rw-rw- 1 oracle oinstall 38888 Jul 16 02:20 tp000001
-rw-rw-rw- 1 oracle oinstall 1490 Jul 16 02:21 tp000002
[oracle@rhlinux dirdat]$ date
Thu Jul 16 02:23:16 CST 2015
5）檢視刪除trail檔案的語法
[oracle@rhlinux dirdat]$ cd -
/u02/ogg
[oracle@rhlinux ogg]$ ./ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 11.2.1.0.1 OGGCORE_11.2.1.0.1_PLATFORMS_120423.0230_FBO
Linux, x86, 32bit (optimized), Oracle 11g on Apr 23 2012 08:09:25
Copyright (C) 1995, 2012, Oracle and/or its affiliates. All rights reserved.
GGSCI (rhlinux) 2> help delete exttrail
DELETE EXTTRAIL
Use DELETE EXTTRAIL to delete the record of checkpoints associated with
a trail on a local system. Checkpoints are maintained in a file bearing
the same name as the group in the dirchk sub-directory of the Oracle
GoldenGate directory.
This command only deletes references to the specified trail from the
checkpoint file. It does not delete the trail files themselves. To
delete the trail files, use standard operating system commands for
removing files.
Syntax:
DELETE EXTTRAIL <trail name>
<trail name>
The fully qualified path name of the trail, including the two-character
trail prefix.
Example:
DELETE EXTTRAIL /home/ggs/dirdat/et
6）檢視檢查點狀態
GGSCI (rhlinux) 3> info e_tmp,showch
EXTRACT E_TMP Last Started 2015-07-16 02:28 Status RUNNING
Checkpoint Lag 00:00:47 (updated 00:00:10 ago)
Log Read Checkpoint Oracle Redo Logs
2015-07-16 02:28:02 Seqno 629, RBA 25148928
SCN 0.10432015 (10432015)
Current Checkpoint Detail:
Read Checkpoint #1
Oracle Redo Log
Startup Checkpoint (starting position in the data source):
Thread #: 1
Sequence #: 629
RBA: 25148432
Timestamp: 2015-07-16 02:28:02.000000
SCN: 0.10432015 (10432015)
Redo File: /u01/oradata/testdb/redo02.log
Recovery Checkpoint (position of oldest unprocessed transaction in the data source):
Thread #: 1
Sequence #: 629
RBA: 25148432
Timestamp: 2015-07-16 02:28:02.000000
SCN: 0.10432015 (10432015)
Redo File: /u01/oradata/testdb/redo02.log
Current Checkpoint (position of last record read in the data source):
Thread #: 1
Sequence #: 629
RBA: 25148928
Timestamp: 2015-07-16 02:28:02.000000
SCN: 0.10432015 (10432015)
Redo File: /u01/oradata/testdb/redo02.log
Write Checkpoint #1
GGS Log Trail
Current Checkpoint (current write position):
Sequence #: 4
RBA: 1061
Timestamp: 2015-07-16 02:28:49.692372
Extract Trail: ./dirdat/tp --該程式有兩個檢查點，分別是tp和tq開頭
Write Checkpoint #2
GGS Log Trail
Current Checkpoint (current write position):
Sequence #: 0
RBA: 0
Timestamp: 2015-07-15 21:49:28.284243
Extract Trail: ./dirdat/tq --該程式有兩個檢查點，分別是tp和tq開頭
CSN state information:
CRC: 28-31-66-7A
CSN: Not available
Header:
Version = 2
Record Source = A
Type = 10
# Input Checkpoints = 1
# Output Checkpoints = 2
File Information:
Block Size = 2048
Max Blocks = 100
Record Length = 2048
Current Offset = 0
Configuration:
Data Source = 3
Transaction Integrity = 1
Task Type = 0
Status:
Start Time = 2015-07-16 02:28:49
Last Update Time = 2015-07-16 02:28:49
Stop Status = A
Last Result = 0
GGSCI (rhlinux) 12> view params e_tmp
extract e_tmp
userid ogg password ogg
exttrail ./dirdat/tp
table tmp_user.*;
GGSCI (rhlinux) 13> exit
7)向表中新增資料，觀察trail檔案變化：
[oracle@rhlinux ogg]$ cd dirdat
[oracle@rhlinux dirdat]$ ls -lrt
total 264
-rw-rw-rw- 1 oracle oinstall 1473 Jul 15 22:01 tq000000
-rw-rw-rw- 1 oracle oinstall 38888 Jul 16 02:20 tp000001
-rw-rw-rw- 1 oracle oinstall 1061 Jul 16 02:23 e1000005
-rw-rw-rw- 1 oracle oinstall 174887 Jul 16 02:23 e1000004
-rw-rw-rw- 1 oracle oinstall 1490 Jul 16 02:23 tp000002
-rw-rw-rw- 1 oracle oinstall 1914 Jul 16 02:28 tp000003
-rw-rw-rw- 1 oracle oinstall 29653 Jul 16 02:30 tp000004 --此檔案是新產生的，也就是說，tp是正在使用的trail檔案，而tq當前未使用
[oracle@rhlinux dirdat]$ date
Thu Jul 16 02:31:02 CST 2015
8）下面刪除tq開頭的檔案
[oracle@rhlinux dirdat]$ cd ..
[oracle@rhlinux ogg]$ ./ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 11.2.1.0.1 OGGCORE_11.2.1.0.1_PLATFORMS_120423.0230_FBO
Linux, x86, 32bit (optimized), Oracle 11g on Apr 23 2012 08:09:25
Copyright (C) 1995, 2012, Oracle and/or its affiliates. All rights reserved.
GGSCI (rhlinux) 1> stop e_tmp
Sending STOP request to EXTRACT E_TMP ...
Request processed.
GGSCI (rhlinux) 2> delete exttrail ./dirdat/tq
Deleting extract trail ./dirdat/tq for extract E_TMP
GGSCI (rhlinux) 3> start e_tmp
Sending START request to MANAGER ...
EXTRACT E_TMP starting
GGSCI (rhlinux) 6> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXT_1 00:00:00 00:00:09
EXTRACT RUNNING E_TMP 00:00:36 00:00:10
EXTRACT RUNNING PUMP_1 00:00:00 00:00:09
EXTRACT RUNNING P_TMP 00:00:00 00:00:02
GGSCI (rhlinux) 7> !
info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXT_1 00:00:00 00:00:07
EXTRACT RUNNING E_TMP 00:00:00 00:00:08
EXTRACT RUNNING PUMP_1 00:00:00 00:00:07
EXTRACT RUNNING P_TMP 00:00:00 00:00:00
GGSCI (rhlinux) 8> info e_tmp,showch
EXTRACT E_TMP Last Started 2015-07-16 02:31 Status RUNNING
Checkpoint Lag 00:00:00 (updated 00:00:08 ago)
Log Read Checkpoint Oracle Redo Logs
2015-07-16 02:32:02 Seqno 629, RBA 25397760
SCN 0.10432254 (10432254)
Current Checkpoint Detail:
Read Checkpoint #1
Oracle Redo Log
Startup Checkpoint (starting position in the data source):
Thread #: 1
Sequence #: 629
RBA: 25359888
Timestamp: 2015-07-16 02:31:13.000000
SCN: 0.10432188 (10432188)
Redo File: /u01/oradata/testdb/redo02.log
Recovery Checkpoint (position of oldest unprocessed transaction in the data source):
Thread #: 1
Sequence #: 629
RBA: 25396752
Timestamp: 2015-07-16 02:31:59.000000
SCN: 0.10432252 (10432252)
Redo File: /u01/oradata/testdb/redo02.log
Current Checkpoint (position of last record read in the data source):
Thread #: 1
Sequence #: 629
RBA: 25397760
Timestamp: 2015-07-16 02:32:02.000000
SCN: 0.10432254 (10432254)
Redo File: /u01/oradata/testdb/redo02.log
Write Checkpoint #1
GGS Log Trail
Current Checkpoint (current write position):
Sequence #: 5
RBA: 1204
Timestamp: 2015-07-16 02:32:11.232764
Extract Trail: ./dirdat/tp --刪除後只剩下一個寫檢查點，且trail檔案為tp
CSN state information:
CRC: E2-68-59-BC
Latest CSN: 10432237
Latest TXN: 18.13.2471
Latest CSN of finished TXNs: 10432237
Completed TXNs: 18.13.2471
Header:
Version = 2
Record Source = A
Type = 10
# Input Checkpoints = 1
# Output Checkpoints = 1
File Information:
Block Size = 2048
Max Blocks = 100
Record Length = 2048
Current Offset = 0
Configuration:
Data Source = 3
Transaction Integrity = 1
Task Type = 0
Status:
Start Time = 2015-07-16 02:31:49
Last Update Time = 2015-07-16 02:32:11
Stop Status = A
Last Result = 400
當然，這是在trail檔案當前沒有使用的情況下才可以正常刪除。
如果繼續刪除tp，則會報錯：
GGSCI (rhlinux) 7> add exttrail ./dirdat/tt ,extract e_tmp
EXTTRAIL added.
GGSCI (rhlinux) 8> delete exttrail ./dirdat/tp
Deleting extract trail ./dirdat/tp for extract E_TMP
Cannot delete extract trail ./dirdat/tp, extract P_TMP is running.
GGSCI (rhlinux) 9> stop p_tmp
Sending STOP request to EXTRACT P_TMP ...
Request processed.
GGSCI (rhlinux) 10> delete exttrail ./dirdat/tp
Deleting extract trail ./dirdat/tp for extract P_TMP
GGSCI (rhlinux) 14> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXT_1 00:00:00 00:00:08
EXTRACT STOPPED E_TMP 00:00:00 00:02:32
EXTRACT RUNNING PUMP_1 00:00:00 00:00:09
EXTRACT STOPPED P_TMP 00:00:00 00:01:46
GGSCI (rhlinux) 15> start e_tmp
Sending START request to MANAGER ...
EXTRACT E_TMP starting
GGSCI (rhlinux) 16> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXT_1 00:00:00 00:00:05
EXTRACT STOPPED E_TMP 00:00:00 00:02:39
EXTRACT RUNNING PUMP_1 00:00:00 00:00:06
EXTRACT STOPPED P_TMP 00:00:00 00:01:53
GGSCI (rhlinux) 17> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXT_1 00:00:00 00:00:08
EXTRACT ABENDED E_TMP 00:00:00 00:02:42
EXTRACT RUNNING PUMP_1 00:00:00 00:00:09
EXTRACT STOPPED P_TMP 00:00:00 00:01:57
GGSCI (rhlinux) 18> exit
[oracle@rhlinux ogg]$ tail -20 ggserr.log
2015-07-16 02:54:30 INFO OGG-00975 Oracle GoldenGate Manager for Oracle, mgr.prm: EXTRACT E_TMP starting.
2015-07-16 02:54:31 INFO OGG-00992 Oracle GoldenGate Capture for Oracle, e_tmp.prm: EXTRACT E_TMP starting.
2015-07-16 02:54:31 INFO OGG-03035 Oracle GoldenGate Capture for Oracle, e_tmp.prm: Operating system character set identified as UTF-8. Locale: en_US, LC_ALL:.
2015-07-16 02:54:32 INFO OGG-03500 Oracle GoldenGate Capture for Oracle, e_tmp.prm: WARNING: NLS_LANG environment variable does not match database character set, or not set. Using database character set value of WE8MSWIN1252.
2015-07-16 02:54:32 INFO OGG-01635 Oracle GoldenGate Capture for Oracle, e_tmp.prm: BOUNDED RECOVERY: reset to initial or altered checkpoint.
2015-07-16 02:54:32 INFO OGG-01815 Oracle GoldenGate Capture for Oracle, e_tmp.prm: Virtual Memory Facilities for: BR
anon alloc: mmap(MAP_ANON) anon free: munmap
file alloc: mmap(MAP_SHARED) file free: munmap
target directories:
/u02/ogg/BR/E_TMP.
2015-07-16 02:54:32 INFO OGG-01815 Oracle GoldenGate Capture for Oracle, e_tmp.prm: Virtual Memory Facilities for: COM
anon alloc: mmap(MAP_ANON) anon free: munmap
file alloc: mmap(MAP_SHARED) file free: munmap
target directories:
/u02/ogg/dirtmp.
2015-07-16 02:54:33 WARNING OGG-01423 Oracle GoldenGate Capture for Oracle, e_tmp.prm: No valid default archive log destination directory found for thread 1.
2015-07-16 02:54:34 INFO OGG-01513 Oracle GoldenGate Capture for Oracle, e_tmp.prm: Positioning to Sequence 629, RBA 28313104, SCN 0.10435987.
2015-07-16 02:54:34 INFO OGG-01516 Oracle GoldenGate Capture for Oracle, e_tmp.prm: Positioned to Sequence 629, RBA 28313104, SCN 0.10435987, Jul 16, 2015 2:51:24 AM.
2015-07-16 02:54:34 ERROR OGG-01044 Oracle GoldenGate Capture for Oracle, e_tmp.prm: The trail './dirdat/tp' is not assigned to extract 'E_TMP'. Assign the trail to the extract with the command "ADD EXTTRAIL/RMTTRAIL ./dirdat/tp, EXTRACT E_TMP".
2015-07-16 02:54:34 ERROR OGG-01668 Oracle GoldenGate Capture for Oracle, e_tmp.prm: PROCESS ABENDING.
只有抽取程式存在此問題，投遞和接收程式如果嘗試增加trail檔案，都會報錯：
GGSCI (ogg) 2> add replicat r_tmp,exttrail ./dirdat/ta
ERROR: REPLICAT R_TMP already exists.
GGSCI (rhlinux) 3> add extract p_tmp,exttrailsource ./dirdat/ta
ERROR: EXTRACT P_TMP already exists.
但實際使用時，由於誤操作而給extract程式e_tmp新增了兩個trail檔案（組），下面實驗是刪除方法，
即停掉extract程式後執行delete exttrail ./dirdat/xx
1)切換到GG_HOME目錄，檢視程式
[oracle@rhlinux ogg]$ pwd
/u02/ogg
[oracle@rhlinux ogg]$ ./ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 11.2.1.0.1 OGGCORE_11.2.1.0.1_PLATFORMS_120423.0230_FBO
Linux, x86, 32bit (optimized), Oracle 11g on Apr 23 2012 08:09:25
Copyright (C) 1995, 2012, Oracle and/or its affiliates. All rights reserved.
GGSCI (rhlinux) 1> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXT_1 00:00:00 00:00:01
EXTRACT RUNNING E_TMP 00:00:00 00:00:06
EXTRACT RUNNING PUMP_1 00:00:00 00:00:03
EXTRACT RUNNING P_TMP 00:00:00 00:00:01
GGSCI (rhlinux) 9> exit
2）檢視trail檔案
[oracle@rhlinux ogg]$ cd dirdat
[oracle@rhlinux dirdat]$ ls -lrt
total 616
-rw-rw-rw- 1 oracle oinstall 48965 Jul 14 14:33 e1000000
-rw-rw-rw- 1 oracle oinstall 13514 Jul 14 15:14 e1000001
-rw-rw-rw- 1 oracle oinstall 1061 Jul 14 15:16 e1000002
-rw-rw-rw- 1 oracle oinstall 1061 Jul 14 15:19 e1000003
-rw-rw-rw- 1 oracle oinstall 320441 Jul 15 21:49 tp000000
-rw-rw-rw- 1 oracle oinstall 1473 Jul 15 22:01 tq000000
-rw-rw-rw- 1 oracle oinstall 174887 Jul 16 01:52 e1000004
-rw-rw-rw- 1 oracle oinstall 38888 Jul 16 02:20 tp000001
-rw-rw-rw- 1 oracle oinstall 1490 Jul 16 02:21 tp000002
3）修改mgr程式，將過期trail檔案刪除
[oracle@rhlinux dirdat]$ cd ..
[oracle@rhlinux ogg]$ ./ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 11.2.1.0.1 OGGCORE_11.2.1.0.1_PLATFORMS_120423.0230_FBO
Linux, x86, 32bit (optimized), Oracle 11g on Apr 23 2012 08:09:25
Copyright (C) 1995, 2012, Oracle and/or its affiliates. All rights reserved.
GGSCI (rhlinux) 1> stop *
Sending STOP request to EXTRACT EXT_1 ...
Request processed.
Sending STOP request to EXTRACT E_TMP ...
Request processed.
Sending STOP request to EXTRACT PUMP_1 ...
Request processed.
Sending STOP request to EXTRACT P_TMP ...
Request processed.
GGSCI (rhlinux) 2> stop mgr
Manager process is required by other GGS processes.
Are you sure you want to stop it (y/n)? y
Sending STOP request to MANAGER ...
Request processed.
Manager stopped.
GGSCI (rhlinux) 3> edit params mgr
GGSCI (rhlinux) 4> view params mgr
port 7811
dynamicportlist 7812-7820
autorestart extract *,waitminutes 2,retries 3
PURGEOLDEXTRACTS ./dirdat/*, USECHECKPOINTS, MINKEEPHOURS 1 --此行是新新增的內容，表示超過一小時且超過讀檢查點的資料自動刪除
GGSCI (rhlinux) 5> start mgr
Manager started.
GGSCI (rhlinux) 6> start *
Sending START request to MANAGER ...
EXTRACT EXT_1 starting
Sending START request to MANAGER ...
EXTRACT E_TMP starting
Sending START request to MANAGER ...
EXTRACT PUMP_1 starting
Sending START request to MANAGER ...
EXTRACT P_TMP starting
GGSCI (rhlinux) 7> exit
4）檢視刪除效果
[oracle@rhlinux ogg]$ cd dirdat
[oracle@rhlinux dirdat]$ ls
e1000004 tp000001 tp000002 tq000000
[oracle@rhlinux dirdat]$ ls -lrt
total 224
-rw-rw-rw- 1 oracle oinstall 1473 Jul 15 22:01 tq000000
-rw-rw-rw- 1 oracle oinstall 174887 Jul 16 01:52 e1000004
-rw-rw-rw- 1 oracle oinstall 38888 Jul 16 02:20 tp000001
-rw-rw-rw- 1 oracle oinstall 1490 Jul 16 02:21 tp000002
[oracle@rhlinux dirdat]$ date
Thu Jul 16 02:23:16 CST 2015
5）檢視刪除trail檔案的語法
[oracle@rhlinux dirdat]$ cd -
/u02/ogg
[oracle@rhlinux ogg]$ ./ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 11.2.1.0.1 OGGCORE_11.2.1.0.1_PLATFORMS_120423.0230_FBO
Linux, x86, 32bit (optimized), Oracle 11g on Apr 23 2012 08:09:25
Copyright (C) 1995, 2012, Oracle and/or its affiliates. All rights reserved.
GGSCI (rhlinux) 2> help delete exttrail
DELETE EXTTRAIL
Use DELETE EXTTRAIL to delete the record of checkpoints associated with
a trail on a local system. Checkpoints are maintained in a file bearing
the same name as the group in the dirchk sub-directory of the Oracle
GoldenGate directory.
This command only deletes references to the specified trail from the
checkpoint file. It does not delete the trail files themselves. To
delete the trail files, use standard operating system commands for
removing files.
Syntax:
DELETE EXTTRAIL <trail name>
<trail name>
The fully qualified path name of the trail, including the two-character
trail prefix.
Example:
DELETE EXTTRAIL /home/ggs/dirdat/et
6）檢視檢查點狀態
GGSCI (rhlinux) 3> info e_tmp,showch
EXTRACT E_TMP Last Started 2015-07-16 02:28 Status RUNNING
Checkpoint Lag 00:00:47 (updated 00:00:10 ago)
Log Read Checkpoint Oracle Redo Logs
2015-07-16 02:28:02 Seqno 629, RBA 25148928
SCN 0.10432015 (10432015)
Current Checkpoint Detail:
Read Checkpoint #1
Oracle Redo Log
Startup Checkpoint (starting position in the data source):
Thread #: 1
Sequence #: 629
RBA: 25148432
Timestamp: 2015-07-16 02:28:02.000000
SCN: 0.10432015 (10432015)
Redo File: /u01/oradata/testdb/redo02.log
Recovery Checkpoint (position of oldest unprocessed transaction in the data source):
Thread #: 1
Sequence #: 629
RBA: 25148432
Timestamp: 2015-07-16 02:28:02.000000
SCN: 0.10432015 (10432015)
Redo File: /u01/oradata/testdb/redo02.log
Current Checkpoint (position of last record read in the data source):
Thread #: 1
Sequence #: 629
RBA: 25148928
Timestamp: 2015-07-16 02:28:02.000000
SCN: 0.10432015 (10432015)
Redo File: /u01/oradata/testdb/redo02.log
Write Checkpoint #1
GGS Log Trail
Current Checkpoint (current write position):
Sequence #: 4
RBA: 1061
Timestamp: 2015-07-16 02:28:49.692372
Extract Trail: ./dirdat/tp --該程式有兩個檢查點，分別是tp和tq開頭
Write Checkpoint #2
GGS Log Trail
Current Checkpoint (current write position):
Sequence #: 0
RBA: 0
Timestamp: 2015-07-15 21:49:28.284243
Extract Trail: ./dirdat/tq --該程式有兩個檢查點，分別是tp和tq開頭
CSN state information:
CRC: 28-31-66-7A
CSN: Not available
Header:
Version = 2
Record Source = A
Type = 10
# Input Checkpoints = 1
# Output Checkpoints = 2
File Information:
Block Size = 2048
Max Blocks = 100
Record Length = 2048
Current Offset = 0
Configuration:
Data Source = 3
Transaction Integrity = 1
Task Type = 0
Status:
Start Time = 2015-07-16 02:28:49
Last Update Time = 2015-07-16 02:28:49
Stop Status = A
Last Result = 0
GGSCI (rhlinux) 12> view params e_tmp
extract e_tmp
userid ogg password ogg
exttrail ./dirdat/tp
table tmp_user.*;
GGSCI (rhlinux) 13> exit
7)向表中新增資料，觀察trail檔案變化：
[oracle@rhlinux ogg]$ cd dirdat
[oracle@rhlinux dirdat]$ ls -lrt
total 264
-rw-rw-rw- 1 oracle oinstall 1473 Jul 15 22:01 tq000000
-rw-rw-rw- 1 oracle oinstall 38888 Jul 16 02:20 tp000001
-rw-rw-rw- 1 oracle oinstall 1061 Jul 16 02:23 e1000005
-rw-rw-rw- 1 oracle oinstall 174887 Jul 16 02:23 e1000004
-rw-rw-rw- 1 oracle oinstall 1490 Jul 16 02:23 tp000002
-rw-rw-rw- 1 oracle oinstall 1914 Jul 16 02:28 tp000003
-rw-rw-rw- 1 oracle oinstall 29653 Jul 16 02:30 tp000004 --此檔案是新產生的，也就是說，tp是正在使用的trail檔案，而tq當前未使用
[oracle@rhlinux dirdat]$ date
Thu Jul 16 02:31:02 CST 2015
8）下面刪除tq開頭的檔案
[oracle@rhlinux dirdat]$ cd ..
[oracle@rhlinux ogg]$ ./ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 11.2.1.0.1 OGGCORE_11.2.1.0.1_PLATFORMS_120423.0230_FBO
Linux, x86, 32bit (optimized), Oracle 11g on Apr 23 2012 08:09:25
Copyright (C) 1995, 2012, Oracle and/or its affiliates. All rights reserved.
GGSCI (rhlinux) 1> stop e_tmp
Sending STOP request to EXTRACT E_TMP ...
Request processed.
GGSCI (rhlinux) 2> delete exttrail ./dirdat/tq
Deleting extract trail ./dirdat/tq for extract E_TMP
GGSCI (rhlinux) 3> start e_tmp
Sending START request to MANAGER ...
EXTRACT E_TMP starting
GGSCI (rhlinux) 6> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXT_1 00:00:00 00:00:09
EXTRACT RUNNING E_TMP 00:00:36 00:00:10
EXTRACT RUNNING PUMP_1 00:00:00 00:00:09
EXTRACT RUNNING P_TMP 00:00:00 00:00:02
GGSCI (rhlinux) 7> !
info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXT_1 00:00:00 00:00:07
EXTRACT RUNNING E_TMP 00:00:00 00:00:08
EXTRACT RUNNING PUMP_1 00:00:00 00:00:07
EXTRACT RUNNING P_TMP 00:00:00 00:00:00
GGSCI (rhlinux) 8> info e_tmp,showch
EXTRACT E_TMP Last Started 2015-07-16 02:31 Status RUNNING
Checkpoint Lag 00:00:00 (updated 00:00:08 ago)
Log Read Checkpoint Oracle Redo Logs
2015-07-16 02:32:02 Seqno 629, RBA 25397760
SCN 0.10432254 (10432254)
Current Checkpoint Detail:
Read Checkpoint #1
Oracle Redo Log
Startup Checkpoint (starting position in the data source):
Thread #: 1
Sequence #: 629
RBA: 25359888
Timestamp: 2015-07-16 02:31:13.000000
SCN: 0.10432188 (10432188)
Redo File: /u01/oradata/testdb/redo02.log
Recovery Checkpoint (position of oldest unprocessed transaction in the data source):
Thread #: 1
Sequence #: 629
RBA: 25396752
Timestamp: 2015-07-16 02:31:59.000000
SCN: 0.10432252 (10432252)
Redo File: /u01/oradata/testdb/redo02.log
Current Checkpoint (position of last record read in the data source):
Thread #: 1
Sequence #: 629
RBA: 25397760
Timestamp: 2015-07-16 02:32:02.000000
SCN: 0.10432254 (10432254)
Redo File: /u01/oradata/testdb/redo02.log
Write Checkpoint #1
GGS Log Trail
Current Checkpoint (current write position):
Sequence #: 5
RBA: 1204
Timestamp: 2015-07-16 02:32:11.232764
Extract Trail: ./dirdat/tp --刪除後只剩下一個寫檢查點，且trail檔案為tp
CSN state information:
CRC: E2-68-59-BC
Latest CSN: 10432237
Latest TXN: 18.13.2471
Latest CSN of finished TXNs: 10432237
Completed TXNs: 18.13.2471
Header:
Version = 2
Record Source = A
Type = 10
# Input Checkpoints = 1
# Output Checkpoints = 1
File Information:
Block Size = 2048
Max Blocks = 100
Record Length = 2048
Current Offset = 0
Configuration:
Data Source = 3
Transaction Integrity = 1
Task Type = 0
Status:
Start Time = 2015-07-16 02:31:49
Last Update Time = 2015-07-16 02:32:11
Stop Status = A
Last Result = 400
當然，這是在trail檔案當前沒有使用的情況下才可以正常刪除。
如果繼續刪除tp，則會報錯：
GGSCI (rhlinux) 7> add exttrail ./dirdat/tt ,extract e_tmp
EXTTRAIL added.
GGSCI (rhlinux) 8> delete exttrail ./dirdat/tp
Deleting extract trail ./dirdat/tp for extract E_TMP
Cannot delete extract trail ./dirdat/tp, extract P_TMP is running.
GGSCI (rhlinux) 9> stop p_tmp
Sending STOP request to EXTRACT P_TMP ...
Request processed.
GGSCI (rhlinux) 10> delete exttrail ./dirdat/tp
Deleting extract trail ./dirdat/tp for extract P_TMP
GGSCI (rhlinux) 14> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXT_1 00:00:00 00:00:08
EXTRACT STOPPED E_TMP 00:00:00 00:02:32
EXTRACT RUNNING PUMP_1 00:00:00 00:00:09
EXTRACT STOPPED P_TMP 00:00:00 00:01:46
GGSCI (rhlinux) 15> start e_tmp
Sending START request to MANAGER ...
EXTRACT E_TMP starting
GGSCI (rhlinux) 16> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXT_1 00:00:00 00:00:05
EXTRACT STOPPED E_TMP 00:00:00 00:02:39
EXTRACT RUNNING PUMP_1 00:00:00 00:00:06
EXTRACT STOPPED P_TMP 00:00:00 00:01:53
GGSCI (rhlinux) 17> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EXT_1 00:00:00 00:00:08
EXTRACT ABENDED E_TMP 00:00:00 00:02:42
EXTRACT RUNNING PUMP_1 00:00:00 00:00:09
EXTRACT STOPPED P_TMP 00:00:00 00:01:57
GGSCI (rhlinux) 18> exit
[oracle@rhlinux ogg]$ tail -20 ggserr.log
2015-07-16 02:54:30 INFO OGG-00975 Oracle GoldenGate Manager for Oracle, mgr.prm: EXTRACT E_TMP starting.
2015-07-16 02:54:31 INFO OGG-00992 Oracle GoldenGate Capture for Oracle, e_tmp.prm: EXTRACT E_TMP starting.
2015-07-16 02:54:31 INFO OGG-03035 Oracle GoldenGate Capture for Oracle, e_tmp.prm: Operating system character set identified as UTF-8. Locale: en_US, LC_ALL:.
2015-07-16 02:54:32 INFO OGG-03500 Oracle GoldenGate Capture for Oracle, e_tmp.prm: WARNING: NLS_LANG environment variable does not match database character set, or not set. Using database character set value of WE8MSWIN1252.
2015-07-16 02:54:32 INFO OGG-01635 Oracle GoldenGate Capture for Oracle, e_tmp.prm: BOUNDED RECOVERY: reset to initial or altered checkpoint.
2015-07-16 02:54:32 INFO OGG-01815 Oracle GoldenGate Capture for Oracle, e_tmp.prm: Virtual Memory Facilities for: BR
anon alloc: mmap(MAP_ANON) anon free: munmap
file alloc: mmap(MAP_SHARED) file free: munmap
target directories:
/u02/ogg/BR/E_TMP.
2015-07-16 02:54:32 INFO OGG-01815 Oracle GoldenGate Capture for Oracle, e_tmp.prm: Virtual Memory Facilities for: COM
anon alloc: mmap(MAP_ANON) anon free: munmap
file alloc: mmap(MAP_SHARED) file free: munmap
target directories:
/u02/ogg/dirtmp.
2015-07-16 02:54:33 WARNING OGG-01423 Oracle GoldenGate Capture for Oracle, e_tmp.prm: No valid default archive log destination directory found for thread 1.
2015-07-16 02:54:34 INFO OGG-01513 Oracle GoldenGate Capture for Oracle, e_tmp.prm: Positioning to Sequence 629, RBA 28313104, SCN 0.10435987.
2015-07-16 02:54:34 INFO OGG-01516 Oracle GoldenGate Capture for Oracle, e_tmp.prm: Positioned to Sequence 629, RBA 28313104, SCN 0.10435987, Jul 16, 2015 2:51:24 AM.
2015-07-16 02:54:34 ERROR OGG-01044 Oracle GoldenGate Capture for Oracle, e_tmp.prm: The trail './dirdat/tp' is not assigned to extract 'E_TMP'. Assign the trail to the extract with the command "ADD EXTTRAIL/RMTTRAIL ./dirdat/tp, EXTRACT E_TMP".
2015-07-16 02:54:34 ERROR OGG-01668 Oracle GoldenGate Capture for Oracle, e_tmp.prm: PROCESS ABENDING.
只有抽取程式存在此問題，投遞和接收程式如果嘗試增加trail檔案，都會報錯：
GGSCI (ogg) 2> add replicat r_tmp,exttrail ./dirdat/ta
ERROR: REPLICAT R_TMP already exists.
GGSCI (rhlinux) 3> add extract p_tmp,exttrailsource ./dirdat/ta
ERROR: EXTRACT P_TMP already exists.
來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/26451536/viewspace-1813537/，如需轉載，請註明出處，否則將追究法律責任。
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