一 GoldenGate简介
Oracle Golden Gate软件是一种基于日志的结构化数据复制备份软件，它通过解析源 数据库在线日志或归档日志获得数据的增量变化，再将这些变化应用到目标数据库，从而实现源数据库与目标数据库同步。Oracle Golden Gate可以在异构的IT基础结构（包括几乎 所有常用操作系统平台和数据库平台）之间实现大量数据亚秒一级的实时复制,从而在可以 在应急系统、在线报表、实时数据仓库供应、交易跟踪、数据同步、集中/分发、容灾、数据库升级和移植、双业务中心等多个场景下应用。同时，Oracle Golden Gate 可以实现一 对一、广播(一对多)、聚合(多对一)、双向、点对点、级联等多种灵活的拓扑结构。
二、技术结构
和传统的逻辑复制一样，Oracle GoldenGate 实现原理是通过抽取源端 的redo log或者archive log，然后通过TCP/IP投递到目标端，最后解析还原应用到目标端，使目标端实现同源端数同步。以下是OracleGoldenGate的技术架。
三、OGG进程
1、Manager进程
Manager进程是GoldenGate的控制进程，运行在源端和目标端上。它主要作用有以下几个方面：启动、监控、重启Goldengate的其他进程, 报告错误及事件，分配数据存储 空间，发布阀值报告等。
2、Extract进程
Extract运行在数据库源端，负责从源端数据表或者日志中捕获数据。
3、Pump进程
pump进程运行在数据库源端。
其作用是如果源端使用了本地的trail文件， 那么pump 进程就会把trail以数据块的形式通过TCP/IP协议发送到目标端，这通常也是推荐的 方式。pump进程本质是extract进程的一种特殊形式，如果不使用trails文件，那么 就是extract进程在抽取完数据以后，直接投递到目标端。
4.Trail文件
为了更有效、更安全的把数据库事务信息从源端投递到目标端。GoldenGate引进 trail文件的概念。前面提到extract抽取完数据以后Goldengate会将抽取的事务信息转化为一种GoldenGate专有格式的文件。然后pump负责把源端的trail文件投递到目标端， 所以源、目标两端都会存在这种文件。trail文件存在的目的旨在防止单点故障，将事务信 息持久化，并且使用checkpoint机制来记录其读写位置，如果故障发生，则数据可以根据 checkpoint记录的位置来重传。
5.Replicat进程
Replicat进程，通常我们也把它叫做应用进程。运行在目标端，是数据传递的最后一站，负责读取目标端trail文件中的内容，并将其解析为DML或DDL语句，然后应用到目标数据库中。
6.GGSCI
GGSCI是GoldenGate Software Command Interface 的缩写，它提供了十分丰富的 命令来对Goldengate进行各种操作，如创建、修改、监控GoldenGate进程等等。
四、应用的拓展结构、支持平台和数据库
五、OGG安装
1、检测安装环境
[oracle@rh6 ogg]$ uname -a
Linux rh6.cuug.net 2.6.32-71.el6.i686 #1 SMP Wed Sep 1 01:26:34 EDT 2010 i686 i686 i386 GNU/Linux
[oracle@rh6 ogg]$ arch
i686
2、安装OGG软件
[oracle@rh6 ogg]$ mkdir -p /u01/ogg
[oracle@rh6 ogg]$ ls -l
total 85912
-rw-r----- 1 oracle oinstall 87966150 Sep 10 11:33 ogg112101_fbo_ggs_Linux_x86_ora11g_32bit.zip
注意：下载的OGG 11g版本有32位和64位，如果在操作系统为32位，安装64位的OGG，将出现以下错误
“不可执行的二进制文件”
[oracle@rh6 ogg]$ unzip ogg112101_fbo_ggs_Linux_x86_ora11g_32bit.zip
Archive: ogg112101_fbo_ggs_Linux_x86_ora11g_32bit.zip
inflating: fbo_ggs_Linux_x86_ora11g_32bit.tar
inflating: OGG_WinUnix_Rel_Notes_11.2.1.0.1.pdf
inflating: Oracle GoldenGate 11.2.1.0.1 README.txt
inflating: Oracle GoldenGate 11.2.1.0.1 README.doc
[oracle@rh6 ogg]$ ls -l
total 290704
-rw-rw-r-- 1 oracle oinstall 209367040 Apr 23 2012 fbo_ggs_Linux_x86_ora11g_32bit.tar
-rw-r----- 1 oracle oinstall 87966150 Sep 10 11:33 ogg112101_fbo_ggs_Linux_x86_ora11g_32bit.zip
-rwxrwxrwx 1 oracle oinstall 220546 May 2 2012 OGG_WinUnix_Rel_Notes_11.2.1.0.1.pdf
-rwxrwxrwx 1 oracle oinstall 93696 May 2 2012 Oracle GoldenGate 11.2.1.0.1 README.doc
-rwxrwxrwx 1 oracle oinstall 24390 May 2 2012 Oracle GoldenGate 11.2.1.0.1 README.txt
[oracle@rh6 ogg]$ tar xvf fbo_ggs_Linux_x86_ora11g_32bit.tar
3、执行ggsci脚本，建立相关目录
[oracle@rh6 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 (ogg) 2> help
GGSCI Command Summary:
Object: Command:
SUBDIRS CREATE
ER INFO, KILL, LAG, SEND, STATUS, START, STATS, STOP
EXTRACT ADD, ALTER, CLEANUP, DELETE, INFO, KILL,
LAG, REGISTER, SEND, START, STATS, STATUS, STOP
UNREGISTER
EXTTRAIL ADD, ALTER, DELETE, INFO
GGSEVT VIEW
MANAGER INFO, SEND, START, STOP, STATUS
MARKER INFO
PARAMS EDIT, VIEW
REPLICAT ADD, ALTER, CLEANUP, DELETE, INFO, KILL, LAG, SEND,
START, STATS, STATUS, STOP
REPORT VIEW
RMTTRAIL ADD, ALTER, DELETE, INFO
TRACETABLE ADD, DELETE, INFO
TRANDATA ADD, DELETE, INFO
SCHEMATRANDATA ADD, DELETE, INFO
CHECKPOINTTABLE ADD, DELETE, CLEANUP, INFO
Commands without an object:
(Database) DBLOGIN, LIST TABLES, ENCRYPT PASSWORD, FLUSH SEQUENCE
MININGDBLOGIN
(DDL) DUMPDDL
(Miscellaneous) FC, HELP, HISTORY, INFO ALL, OBEY, SET EDITOR, SHELL,
SHOW, VERSIONS, ! (note: you must type the word
COMMAND after the ! to display the ! help topic.)
i.e.: GGSCI (sys1)> help ! command
For help on a specific command, type HELP <command> <object>.
Example: HELP ADD REPLICAT
GGSCI (ogg) 3> create subdirs
Creating subdirectories under current directory /u01/ogg
Parameter files /u01/ogg/dirprm: already exists
Report files /u01/ogg/dirrpt: created
Checkpoint files /u01/ogg/dirchk: created
Process status files /u01/ogg/dirpcs: created
SQL script files /u01/ogg/dirsql: created
Database definitions files /u01/ogg/dirdef: created
Extract data files /u01/ogg/dirdat: created
Temporary files /u01/ogg/dirtmp: created
Stdout files /u01/ogg/dirout: created
GGSCI>create subdirs --不需要指定路径，默认在当前目录下（所以进入ggsci的时候，一定要在gg的当前目录）
新建出来的目录有：
name Purpose
--dirchk Checkpoint files存放检查点（Checkpoint）文件 (和Oracle的checkpoint含义不同，如oralce的一个实例失败，从最近一次的checkpoint开始recorver, oracle的一次 checkpoint是让dbwrt进程把被修改的数据从数据缓冲区中写入数据文件。而OGG的checkpoint是OGG捕捉了很多事务日志，哪些被 传输了，哪些未被传输。每隔一段时间，执行一次checkpoint,之前的所有数据都要传送过去。如果soure or target db断电了，那下次启动的时候，就要支持断点续传，那那个断点位置就是最后一次OGG执行checkpoint的位置)
--dirdat GoldenGate trails, 存放Trail与Extract文件
--dirdef Data Definition files,过DEFGEN工具生成的源或目标的数据定义文件
--dirprm Parameter files, 存放参数文件
--dirpcs Process status files, 存放进程状态文件
--dirrpt Report files, 存放进程报告文件
--dirsql SQL script files,存放SQL脚本文件
--dirtmp Temporary files,当事务所需要的内存超过已分配内存时，缺省存储于此
@至此，OGG在linux下安装基本完成，后面将进入OGG的基本配置
OGG基本配置（单向传输）
1、数据库配置（Source DB）
建立Tablespace：
11:58:56 SYS@ prod >create tablespace ogg_tbs
11:59:12 2 datafile '/u01/app/Oracle/oradata/prod/oggtbs1.dbf' size 100m ;
建立ogg用户：
12:01:17 SYS@ prod >create user ogg identified by ogg default tablespace ogg_tbs temporary tablespace temp quota unlimited on ogg_tbs;
User created.
用户授权：
12:01:39 SYS@ prod >grant connect,resource to ogg;
Grant succeeded.
12:01:55 SYS@ prod >grant create session,alter session to ogg;
Grant succeeded.
12:02:18 SYS@ prod >grant select any dictionary,select any table to ogg;
Grant succeeded.
12:02:42 SYS@ prod >grant alter any table to ogg;
Grant succeeded.
12:02:53 SYS@ prod >grant flashback any table to ogg;
Grant succeeded.
12:03:03 SYS@ prod >grant execute on dbms_flashback to ogg;
Grant succeeded.
在Database上启用附加日志功能：
12:19:26 SYS@ prod >select SUPPLEMENTAL_LOG_DATA_MIN from v$database;
SUPPLEME
--------
NO
12:20:53 SYS@ prod >alter database add supplemental log data;
Database altered.
数据库应为归档模式：
12:21:10 SYS@ prod >archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /dsk4/arch_prod
Oldest online log sequence 78
Next log sequence to archive 80
Current log sequence 80
13:22:45 SYS@ prod >select force_logging from v$database;
FOR
---
NO
13:24:22 SYS@ prod >alter database force logging;
Database altered.
13:24:30 SYS@ prod >select force_logging from v$database;
FOR
---
YES
建立用于传输测试的Table：
12:12:26 SCOTT@ prod >create table emp_ogg as select * from emp;
Table created.
12:12:40 SCOTT@ prod >alter table emp_ogg add constraint pk_ogg primary
key(empno);
注意：Oracle建议给所有要复制的表建立主键或唯一键
2、数据库配置（Target DB）
建立Tablespace：
12:07:50 SYS@ prod >create tablespace ogg_tbs
12:08:09 2 datafile '/u01/app/oracle/oradata/prod/oggtbs1.dbf' size 100m;
建立ogg用户：
12:08:47 SYS@ prod >create user ogg identified by ogg default tablespace ogg_tbs temporary tablespace temp quota unlimited on ogg_tbs;
User created.
用户授权：
12:09:44 SYS@ prod >grant connect,resource to ogg;
Grant succeeded.
12:10:06 SYS@ prod >grant create session ,alter session to ogg;
Grant succeeded.
12:10:20 SYS@ prod >grant select any table,select any dictionary to ogg;
Grant succeeded.
12:10:45 SYS@ prod >grant create table to ogg;
创建测试Table：
12:13:47 SCOTT@ prod >create table emp_ogg as select * from emp;
Table created.
12:14:04 SCOTT@ prod >grant all on emp_ogg to ogg；
Grant succeeded.
3、OGG配置（source）
配置MGR:
[oracle@ogg ogg]$ ./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.
添加用于capture data change的table
GGSCI (ogg) 2> dblogin userid ogg,password ogg;
Successfully logged into database.
GGSCI (ogg) 9> add trandata scott.emp_ogg
Logging of supplemental redo data enabled for table SCOTT.EMP_OGG.
查看在table上是否启用了supplemental log
GGSCI (ogg) 11> info trandata scott.emp_ogg
Logging of supplemental redo log data is enabled for table SCOTT.EMP_OGG.
Columns supplementally logged for table SCOTT.EMP_OGG: EMPNO.
GGSCI (ogg) 13> edit params mgr
port 7809
dynamicportlist 7800-8000
autorestart extract *,waitminutes 2,resetminutes 5
编辑mgr参数文件，并写入以上信息！
GGSCI (ogg) 14> start mgr
Manager started.
GGSCI (ogg) 16> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
配置Extract：
添加extract服务，并启动extract服务：
GGSCI (ogg) 11> add extract eini_1,sourceistable
EXTRACT added.
校验Extract process
GGSCI (ogg) 14> info extract *,tasks
EXTRACT EINI_1 Initialized 2014-09-10 14:28 Status STOPPED
Checkpoint Lag Not Available
Log Read Checkpoint Not Available
First Record Record 0
Task SOURCEISTABLE
编辑extract参数文件
GGSCI (ogg) 18>EDIT PARAMS EINI_1
EXTRACT EINI_1
SETENV (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
USERID ogg, PASSWORD ogg
RMTHOST 192.168.8.249,MGRPORT 7809
RMTTASK REPLICAT, GROUP RINI_1
TABLE scott.EMP_OGG;
GGSCI (ogg) 15> start eini_1
Sending START request to MANAGER ...
EXTRACT EINI_1 starting
GGSCI (ogg) 16> info eini_1
EXTRACT EINI_1 Initialized 2014-09-10 14:28 Status RUNNING
Checkpoint Lag Not Available
Log Read Checkpoint Not Available
First Record Record 0
Task SOURCEISTABLE
GGSCI (ogg) 17> view report eini_1
2014-09-10 14:30:34 INFO OGG-01017 Wildcard resolution set to IMMEDIATE because SOURCEISTABLE is used.
*********************************************************************
Oracle GoldenGate Capture 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 08:20:38
Copyright (C) 1995, 2012, Oracle and/or its affiliates. All rights reserved.
Starting at 2014-09-10 14:30:34
*********************************************************************
Operating System Version:
Linux
Version #1 SMP Wed Sep 1 01:26:34 EDT 2010, Release 2.6.32-71.el6.i686
Node: ogg
Machine: i686
soft limit hard limit
Address Space Size : unlimited unlimited
Heap Size : unlimited unlimited
File Size : unlimited unlimited
CPU Time : unlimited unlimited
Process id: 6159
Description:
*********************************************************************
** Running with the following parameters **
*********************************************************************
2014-09-10 14:30:34 INFO OGG-03035 Operating system character set identified as UTF-8. Locale: en_US, LC_ALL:.
EXTRACT EINI_1
SETENV (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
Set environment variable (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
USERID ogg,PASSWORD ***
RMTHOST 192.168.8.249,MGRPORT 7809
RMTTASK REPLICAT,GROUP RINI_1
TABLE scott.EMP_OGG;
Using the following key columns for source table SCOTT.EMP_OGG: EMPNO.
2014-09-10 14:30:36 INFO OGG-01815 Virtual Memory Facilities for: COM
anon alloc: mmap(MAP_ANON) anon free: munmap
file alloc: mmap(MAP_SHARED) file free: munmap
target directories:
/u01/ogg/dirtmp.
CACHEMGR virtual memory values (may have been adjusted)
CACHESIZE: 2G
CACHEPAGEOUTSIZE (normal): 4M
PROCESS VM AVAIL FROM OS (min): 2.75G
CACHESIZEMAX (strict force to disk): 2.47G
Database Version:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
Database Language and Character Set:
NLS_LANG = "AMERICAN_AMERICA.ZHS16GBK"
NLS_LANGUAGE = "AMERICAN"
NLS_TERRITORY = "AMERICA"
NLS_CHARACTERSET = "ZHS16GBK"
2014-09-10 14:30:36 WARNING OGG-01223 TCP/IP error 111 (Connection refus
Source Context :
SourceModule : [er.idlx]
SourceID : [/net/ap1109nap-vlan900/vol/ifarm_ports/ifarm_views/aime_oggcore_210874/oggcore/OpenSys/src/app/er/idlx.c]
SourceFunction : [idlx_tcp_error]
SourceLine : [1414]
ThreadBacktrace : [10] elements
: [/u01/ogg/libgglog.so(CMessageContext::AddThreadContext()+0x26) [0x1f9166]]
: [/u01/ogg/libgglog.so(CMessageFactory::CreateMessage(CSourceContext*, unsigned int, ...)+0x2c5) [0x1f5125]]
: [/u01/ogg/libgglog.so(_MSG_ERR_TCP_GENERIC(CSourceContext*, char const*, CMessageFactory::MessageDisposition)+0x36) [0
x1d755c]]
: [/u01/ogg/extract() [0x8148d0c]]
: [/u01/ogg/extract(IDLX_tcp_send_data+0xf4) [0x8149ae0]]
: [/u01/ogg/extract(IDLX_send_session_begin_cmd+0xa6) [0x8149e12]]
: [/u01/ogg/extract(process_source_files()+0x584) [0x819662e]]
: [/u01/ogg/extract(main+0x5fc) [0x819820c]]
: [/lib/libc.so.6(__libc_start_main+0xe6) [0x8aecc6]]
: [/u01/ogg/extract(__gxx_personality_v0+0x3ad) [0x81144e1]]
2014-09-10 14:32:35 ERROR OGG-01224 TCP/IP error 111 (Connection refused); retries exceeded.
2014-09-10 14:32:35 ERROR OGG-01668 PROCESS ABENDING.
注意：出现以上tcp/ip错误，是因为目标端未配置mgr，无法通讯！
源端配置extract进程，用于数据同步：
GGSCI (ogg) 25> edit params eora_1
EXTRACT EORA_1
SETENV (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
USERID ogg,PASSWORD ogg
EXTTRAIL ./dirdat/aa
TABLE scott.emp_ogg;
添加extract primary group
GGSCI (ogg) 27> add extract eora_1,tranlog,begin now
EXTRACT added.
定义goldengate local trail
注意：‘aa’ is prefix for local trail file
GGSCI (ogg) 29> add exttrail ./dirdat/aa,extract eora_1,megabytes 5
EXTTRAIL added.
GGSCI (ogg) 30> start extract eora_1
Sending START request to MANAGER ...
EXTRACT EORA_1 starting
GGSCI (ogg) 31> info extract eora_1
EXTRACT EORA_1 Initialized 2014-09-10 14:47 Status STOPPED
Checkpoint Lag 00:00:00 (updated 00:02:06 ago)
Log Read Checkpoint Oracle Redo Logs
2014-09-10 14:47:22 Seqno 0, RBA 0
SCN 0.0 (0)
在源端配置pump进程，用于数据同步：
GGSCI (ogg) 41> edit params pora_1
EXTRACT PORA_1
SETENV (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
PASSTHRU
RMTHOST 192.168.8.249,MGRPORT 7809
RMTTRAIL ./dirdat/pa
TABLE scott.emp_ogg;
添加pump extract group
GGSCI (ogg) 35> add extract pora_1,exttrailsource ./dirdat/pa
EXTRACT added.
添加remote trail file在source system
ggsci> ADD RMTTRAIL ./dirdat/pa,EXTRACT PORA_1, MEGABYTES 5
RMTTRAIL added.
GGSCI (ogg) 36> info extract pora_1
EXTRACT PORA_1 Initialized 2014-09-10 15:01 Status STOPPED
Checkpoint Lag 00:00:00 (updated 00:00:22 ago)
Log Read Checkpoint File ./dirdat/pa000000
First Record RBA 0
GGSCI (ogg) 42> start extract pora_1
Sending START request to MANAGER ...
EXTRACT PORA_1 starting
GGSCI (ogg) 43> info extract pora_1
EXTRACT PORA_1 Initialized 2014-09-10 15:01 Status STOPPED
Checkpoint Lag 00:00:00 (updated 00:03:35 ago)
Log Read Checkpoint File ./dirdat/pa000000
First Record RBA 0
以上eora_1和pora_1服务都处于stop状态，正常应为running，通过以下方式进行纠正；
解决方法：
GGSCI (rh6.cuug.net) 7> delete extract eora_1,tranlog,begin now
2014-09-10 16:16:15 WARNING OGG-01753 Cannot unregister EXTRACT EORA_1 from database because no database login was provided. You can manually unregister this group later with the UNREGISTER EXTRACT command with LOGRETENTION. Issue DBLOGIN first.
Deleted EXTRACT EORA_1.
GGSCI (rh6.cuug.net) 8> dblogin userid ogg,password ogg
Successfully logged into database.
GGSCI (rh6.cuug.net) 9> delete extract eora_1,tranlog,begin now
ERROR: EXTRACT EORA_1 does not exist.
GGSCI (rh6.cuug.net) 10> add extract eora_1,tranlog,begin now
EXTRACT added.
GGSCI (rh6.cuug.net) 11> add exttrail ./dirdat/aa ,extract eora_1,megabytes 5
EXTTRAIL added.
GGSCI (rh6.cuug.net) 12> start extract eora_1
Sending START request to MANAGER ...
EXTRACT EORA_1 starting
GGSCI (rh6.cuug.net) 13> info extract eora_1
EXTRACT EORA_1 Last Started 2014-09-10 16:17 Status RUNNING
Checkpoint Lag 00:00:54 (updated 00:00:07 ago)
Log Read Checkpoint Oracle Redo Logs
2014-09-10 16:16:51 Seqno 80, RBA 42201104
SCN 0.0 (0)
GGSCI (rh6.cuug.net) 27> edit params pora_1
RMTTRAIL
EXTRACT PORA_1
SETENV (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
PASSTHRU
RMTHOST 192.168.8.249,MGRPORT 7809
RMTTRAIL ./dirdat/pa
TABLE scott.emp_ogg;
GGSCI (rh6.cuug.net) 28> start extract pora_1
Sending START request to MANAGER ...
EXTRACT PORA_1 starting
GGSCI (rh6.cuug.net) 29> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EORA_1 00:00:00 00:00:04
EXTRACT RUNNING PORA_1 00:00:00 00:03:18
@至此，Source端，Extract、Pump服务配置基本完毕 ！
4、OGG配置（Target）
配置MGR
GGSCI (rh6.cuug.net) 4> edit params mgr
port 7809
dynamicportlist 7800-8000
autorestart extract *,waitminutes 2,resetminutes 5
~
GGSCI (rh6.cuug.net) 5> start mgr
Manager started.
GGSCI (rh6.cuug.net) 6> info mgr
Manager is running (IP port rh6.cuug.net.7809).
配置Replicate服务
[oracle@rh6 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 (rh6.cuug.net) 1> add replicat rini_1,specialrun
REPLICAT added.
GGSCI (rh6.cuug.net) 2> info replicat *,tasks
REPLICAT RINI_1 Initialized 2014-09-10 14:33 Status STOPPED
Checkpoint Lag 00:00:00 (updated 00:00:13 ago)
Log Read Checkpoint Not Available
Task SPECIALRUN
GGSCI (rh6.cuug.net) 3> edit params rini_1
REPLICAT RINI_1
SETENV (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
ASSUMETARGETDEFS
USERID ogg,PASSWOR ogg
DISCARDFILE ./dirrpt/RINIaa.dsc,PURGE
MAP scott.emp_ogg,TARGET scott.emp_ogg;
注意：在源端启动eini_1 process，目标端rini_1 process将会被自动启动
添加replicate checkpoint table
GGSCI (rh6.cuug.net) 1> edit params ./GLOBALS
CHECKPOINTTABLE ogg.oggchkpt
GGSCI (rh6.cuug.net) 2> exit
必须退出ggsci，checkpoint table 才会生效
[oracle@rh6 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 (rh6.cuug.net) 1> dblogin userid ogg,password ogg
Successfully logged into database.
GGSCI (rh6.cuug.net) 2> add checkpointtable
No checkpoint table specified, using GLOBALS specification (ogg.oggchkpt)...
Successfully created checkpoint table ogg.oggchkpt.
添加replicate group
GGSCI (rh6.cuug.net) 4> add replicat rora_1,exttrail ./dirdat/pa
REPLICAT added.
编辑replicate parameterfile
GGSCI (rh6.cuug.net) 5> edit param rora_1
REPLICAT RORA_1
SETENV (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
USERID ogg,PASSWORD ogg
HANDLECOLLISIONS
ASSUMETARGETDEFS
DISCARDFILE ./dirrpt/RORA_aa.DSC,PURGE
MAP scott.oem_ogg,TARGET scott.emp_ogg;
启动replicate process
GGSCI (rh6.cuug.net) 7> start replicat rora_1
Sending START request to MANAGER ...
REPLICAT RORA_1 starting
GGSCI (rh6.cuug.net) 10> info replicat rora_1
REPLICAT RORA_1 Last Started 2014-09-10 15:53 Status RUNNING
Checkpoint Lag 00:00:00 (updated 00:00:05 ago)
Log Read Checkpoint File ./dirdat/pa000000
First Record RBA 0
GGSCI (rh6.cuug.net) 9> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
REPLICAT RUNNING RORA_1 00:00:00 00:00:00
5、同步测试
源端对表emp_ogg进行insert、delete、update，启动eini_1进程查看，目标端emp_ogg表数据是否同步一致。