ogg之replicat进程跳过事务的方法

发布时间：2020-08-10 19:13:09 来源：ITPUB博客阅读：316 作者：水逸冰栏目：关系型数据库

本文主要讲述：

1.ogg 如何跳过事务

2.logdump 在事务寻找中的关键作用

复制进程 abended

GGSCI (ORALTDB.eastmoney.com.sh) 12> info all

Program Status Group Lag at Chkpt Time Since Chkpt

MANAGER RUNNING

REPLICAT ABENDED REP_MI01 00:00:00 00:00:25

如果要使用 logdump 的话，需要知道进程正在处理的文件，如何获取这个文件呢？

对于抽取进程来说：

1. 操作系统上最后一个 trail 文件一定是 abended 时正在处理的文件

2. 通过命令查看 info < 进程名 >,detail

对于复制进程来说，操作系统最后一个文件不一定是 replicat 进程正在处理的文件了：

1.info < 进程名 >

2.info < 进程名 >,detail

查看复制进程当前处理的文件和处理到的 RBA 地址

GGSCI (ORALTDB.eastmoney.com.sh) 13> info REP_MI01

REPLICAT REP_MI01 Last Started 2018-12-13 15:07 Status ABENDED

Checkpoint Lag 00:00:00 (updated 00:00:35 ago)

Log Read Checkpoint File /u01/app/oracle/products/ogg/dirdat/pump_mi01/ p1000000012

2018-12-13 15:04:13.394312 RBA 18728239

logdump 工具

[ogg@ORALTDB ogg]$ ./logdump

Oracle GoldenGate Log File Dump Utility for Oracle

Version 12.2.0.1.170221 OGGCORE_12.2.0.1.0OGGBP_PLATFORMS_170123.1033

2018-12-13 15:10:33 WARNING OGG-10173 (GLOBALS) line 1: Parsing error, [NOUSEANSISQLQUOTES] is deprecated.

2018-12-13 15:10:33 INFO OGG-06323 NOUSEANSISQLQUOTES is specified. Non ANSI SQL string syntax is used for parameter.

Logdump 1 > open /u01/app/oracle/products/ogg/dirdat/pump_mi01/p1000000012

Current LogTrail is /u01/app/oracle/products/ogg/dirdat/pump_mi01/p1000000012

Logdump 2 > pos 18728239 --info 命令查出的 rba 地址

Reading forward from RBA 18728239

Logdump 3 >detail data

Logdump 4 >ggstoken detail

Logdump 5 >ghdr on

Logdump 6 >n

___________________________________________________________________

Hdr-Ind : E (x45) Partition : . (x00)

UndoFlag : . (x00) BeforeAfter: A (x41)

RecLength : 82 (x0052) IO Time : 2018/12/13 15:07:30.282.502

IOType : 170 (xaa) OrigNode : 1 (x01)

TransInd : . (x03) FormatType : R (x52)

SyskeyLen : 0 (x00) Incomplete : . (x00)

DDR/TDR Idx: (002, 000) AuditPos : 34596880

Continued : N (x00) RecCount : 1 (x01)

2018/12/13 15:07:30.282.502 Metadata Len 82 RBA 18728239

Name:

DDR Version: 1

Database type: ORACLE

Character set ID: zhs16gbk

National character set ID: UTF-16

Locale: neutral

Case sensitivity: 14 14 14 14 14 14 14 14 14 14 14 14 11 14 14 14

TimeZone: GMT

Global name: QUALITY

注意 TransInd ：

(x00) 事务开始

(x01) 事务中

(x02) 事务最后

(x03) 单条事务

直接跳到当前事务的最后一条

Logdump 9 > sfet

End of Transaction found at RBA 49635302

___________________________________________________________________

Hdr-Ind : E (x45) Partition : . (x0c)

UndoFlag : . (x00) BeforeAfter: B (x42)

RecLength : 259 (x0103) IO Time : 2018/12/13 15:07:26.016.944

IOType : 3 (x03) OrigNode : 255 (xff)

TransInd : . (x02) FormatType : R (x52)

SyskeyLen : 0 (x00) Incomplete : . (x00)

AuditRBA : 942 AuditPos : 98381560

Continued : N (x00) RecCount : 1 (x01)

2018/12/13 15:07:26.016.944 Delete Len 259 RBA 49635302

Name: MING.T4 (TDR Index: 2)

Before Image: Partition 12 G e

0000 0007 0000 0003 5359 5300 0100 2200 0000 1e2f | ........SYS..."..../

3837 3638 6634 3335 5f54 6578 7446 6965 6c64 4163 | 8768f435_TextFieldAc

6365 7373 6962 6c65 4100 0200 04ff ff00 0000 0300 | cessibleA...........

0900 0000 0533 3732 3932 0004 0004 ffff 0000 0005 | .....37292..........

000e 0000 000a 4a41 5641 2043 4c41 5353 0006 0015 | ......JAVA CLASS....

0000 3230 3134 2d30 372d 3037 3a30 363a 3036 3a34 | ..2014-07-07:06:06:4

3200 0700 1500 0032 3031 372d 3131 2d30 373a 3136 | 2......2017-11-07:16

Column 0 (x0000), Len 7 (x0007)

0000 0003 5359 53 | ....SYS

Column 1 (x0001), Len 34 (x0022)

0000 001e 2f38 3736 3866 3433 355f 5465 7874 4669 | ..../8768f435_TextFi

656c 6441 6363 6573 7369 626c 6541 | eldAccessibleA

Column 2 (x0002), Len 4 (x0004)

ffff 0000 | ....

Column 3 (x0003), Len 9 (x0009)

0000 0005 3337 3239 32 | ....37292

Column 4 (x0004), Len 4 (x0004)

ffff 0000 | ....

Column 5 (x0005), Len 14 (x000e)

0000 000a 4a41 5641 2043 4c41 5353 | ....JAVA CLASS

Column 6 (x0006), Len 21 (x0015)

0000 3230 3134 2d30 372d 3037 3a30 363a 3036 3a34 | ..2014-07-07:06:06:4

32 | 2

Column 7 (x0007), Len 21 (x0015)

0000 3230 3137 2d31 312d 3037 3a31 363a 3433 3a32 | ..2017-11-07:16:43:2

32 | 2

Column 8 (x0008), Len 23 (x0017)

0000 0013 3230 3134 2d30 372d 3037 3a30 363a 3036 | ....2014-07-07:06:06

3a34 32 | :42

Column 9 (x0009), Len 9 (x0009)

0000 0005 5641 4c49 44 | ....VALID

Column 10 (x000a), Len 5 (x0005)

0000 0001 4e | ....N

Column 11 (x000b), Len 5 (x0005)

0000 0001 4e | ....N

Column 12 (x000c), Len 5 (x0005)

0000 0001 4e | ....N

Column 13 (x000d), Len 5 (x0005)

0000 0001 31 | ....1

Column 14 (x000e), Len 4 (x0004)

ffff 0000 | ....

Column 15 (x000f), Len 8 (x0008)

0000 0004 4e4f 4e45 | ....NONE

Column 16 (x0010), Len 4 (x0004)

ffff 0000 | ....

Column 17 (x0011), Len 5 (x0005)

0000 0001 59 | ....Y

GGS tokens:

TokenID x52 'R' ORAROWID Info x00 Length 20

4141 4169 3049 4141 4a41 4141 4833 2f41 4139 0001 | AAAi0IAAJAAAH3/AA9..

看到 TransInd : . (x02)

说明这是该事务的最后一条

下一个事务或者 DDL ：

Logdump 18 >n

___________________________________________________________________

Hdr-Ind : E (x45) Partition : . (x00)

UndoFlag : . (x00) BeforeAfter: A (x41)

RecLength : 260 (x0104) IO Time : 2018/12/13 15:24:48.500.917

IOType : 170 (xaa) OrigNode : 2 (x02)

TransInd : . (x03) FormatType : R (x52)

SyskeyLen : 0 (x00) Incomplete : . (x00)

DDR/TDR Idx: (002, 003) AuditPos : 564872

Continued : N (x00) RecCount : 1 (x01)

2018/12/13 15:24:48.500.917 Metadata Len 260 RBA 49635641

Name: MING.TEST1

1)Name 2)Data Type 3)External Length 4)Fetch Offset 5)Scale 6)Level

7)Null 8)Bump if Odd 9)Internal Length 10)Binary Length 11)Table Length 12)Most Sig DT

13)Least Sig DT 14)High Precision 15)Low Precision 16)Elementary Item 17)Occurs 18)Key Column

19)Sub DataType 20)Native DataType 21)Character Set 22)Character Length 23)LOB Type 24)Partial Type

TDR version: 1

Definition for table MING.TEST1

Record Length: 134

Columns: 3

A 64 50 0 0 0 1 0 50 50 50 0 0 0 0 1 0 1 2 2 -1 0 0 0

EUTIME 192 19 56 0 0 1 0 19 19 19 0 5 0 0 1 0 0 0 12 -1 0 0 0

B 64 50 78 0 0 1 0 50 50 50 0 0 0 0 1 0 0 2 2 -1 0 0 0

End of definition

可以看到当前 TransInd 是 (x03) ，说明上个事务结束后，新事务是一个单条事务，这个事务的 RBA 就是我们在寻找的 extrba 的值

当前打开的是 /u01/app/oracle/products/ogg/dirdat/pump_mi01/p1000000012 ，所以 extseqno 是 12

GGSCI (ORALTDB.eastmoney.com.sh) 2> alter replicat rep_mi01,extseqno 12,extrba 49635641

2018-12-13 15:31:45 INFO OGG-06594 Replicat REP_MI01 has been altered through GGSCI. Even the start up position might be updated, duplicate suppression remains active in next startup. To override duplicate suppression, start REP_MI01 with NOFILTERDUPTRANSACTIONS option.

REPLICAT altered.

GGSCI (ORALTDB.eastmoney.com.sh) 3> info all

Program Status Group Lag at Chkpt Time Since Chkpt

MANAGER RUNNING

REPLICAT STOPPED REP_MI01 00:00:00 00:00:10

GGSCI (ORALTDB.eastmoney.com.sh) 4> start REP_MI01

Sending START request to MANAGER ...

REPLICAT REP_MI01 starting

GGSCI (ORALTDB.eastmoney.com.sh) 5> info all

Program Status Group Lag at Chkpt Time Since Chkpt

MANAGER RUNNING

REPLICAT RUNNING REP_MI01 00:00:00 00:00:18

这样就跳过了上一个有问题的事务。

向AI问一下细节

ogg之replicat进程跳过事务的方法

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