目的端配置大致分为如下三个步骤：配置mgr，配置checkpoint table，配置应用进程
在目的端先创建一张表，记得带主键：
mysql> create database hr;
Query OK, 1 row affected (0.00 sec)
mysql> use hr
Database changed
mysql> create table ah4(id int ,name varchar(10),primary key(id));
Query OK, 0 rows affected (0.00 sec)
mysql> show tables;
+--------------+
| Tables_in_hr |
+--------------+
| ah4 |
+--------------+
1 row in set (0.00 sec)
mysql>
1.配置mgr
GGSCI (nosql2) 2> edit params mgr PORT 7809 DYNAMICPORTLIST 7810-7909 --AUTOSTART ER * AUTORESTART EXTRACT *,RETRIES 5,WAITMINUTES 3 PURGEOLDEXTRACTS ./dirdat/*,usecheckpoints, minkeepdays 3 LAGREPORTHOURS 1 LAGINFOMINUTES 30 LAGCRITICALMINUTES 45 GGSCI (nosql2) 3> start mgr Manager started. GGSCI (nosql2) 4> info all Program Status Group Lag at Chkpt Time Since Chkpt MANAGER RUNNING
2.配置checkpoint table
GGSCI (nosql2) 7> edit params ./GLOBALS
CHECKPOINTTABLE hr.checkpoint
添加：
GGSCI (nosql2) 8> add checkpointtable hr.checkpointtab Successfully created checkpoint table hr.checkpointtab. GGSCI (nosql2) 9> info checkpointtable hr.checkpointtab Checkpoint table hr.checkpointtab created 2014-04-02 16:11:38. GGSCI (nosql2) 10> 在相应的mysql数据库中，也可以看到相应的表被添加了： mysql> show tables; +---------------+ | Tables_in_hr | +---------------+ | ah4 | | checkpointtab | +---------------+ 2 rows in set (0.00 sec)
3.配置应用进程：
GGSCI (nosql2) 10> edit params rep3 replicat rep3 sourcedefs /u01/ogg/11.2/dirdef/ah4.prm SOURCEDB hr,userid root,password 123456 reperror default,discard discardfile /u01/ogg/11.2/dirrpt/rep4.dsc,append,megabytes 50 map hr.ah4, target hr.ah4;
GGSCI (nosql2) 13> add replicat rep3,exttrail /u01/ogg/11.2/dirdat/xs,checkpointtable hr.checkpointtab
REPLICAT added.
PS:
REPLICAT进程参数配置说明：
ASSUMETARGETDEFS：假定两端数据结构一致使用此参数；
SOURCEDEFS：假定两端数据结构不一致，使用此参数指定源端的数据结构定义文件，该文件需要由GlodenGate工具产生。
MAP:用于指定源端与目标端表的映射关系；
MAPEXCLUDE：用于使用在MAP中使用*匹配时排除掉指定的表；
REPERROR：定义出错以后进程的响应，一般可以定义为两种：
ABEND，即一旦出现错误即停止复制，此为缺省配置；
DISCARD，出现错误后继续复制，只是把错误的数据放到discard文件中。
DISCARDFILE：定义discardfile文件位置，如果处理中油记录出错会写入到此文件中；
SQLEXEC：在进程运行时首先运行一个SQL语句；
GROUPTRANSOPS：将小交易合并成一个大的交易进行提交，减少提交次数，降低系统IO消耗。
MAXTRANSOPS：将大交易拆分，每XX条记录提交一次。
4.测试
在目的端启动rep3进程，在源端启动ext3和push3进程。
在源端的ah4表中插入一条数据，看是否在目的端的ah4表中能看到。
源端进程：
GGSCI (ora11g) 30> info all Program Status Group Lag at Chkpt Time Since Chkpt MANAGER RUNNING EXTRACT RUNNING EXT1 00:00:00 00:00:03 EXTRACT RUNNING EXT2 00:00:00 00:00:07 EXTRACT RUNNING EXT3 00:44:09 00:00:06 EXTRACT RUNNING PUSH1 00:00:00 00:00:03 EXTRACT RUNNING PUSH2 00:00:00 00:00:03 EXTRACT RUNNING PUSH3 00:00:00 00:37:40 GGSCI (ora11g) 31>
源端插入数据：
SQL> insert into ah4 values(1,'aaaccc'); 1 row created. SQL> commit; Commit complete.
源端的ogg日志：
2014-04-02 16:19:26 INFO OGG-00993 Oracle GoldenGate Capture for Oracle, ext3.prm: EXTRACT EXT3 started. 2014-04-02 16:19:26 INFO OGG-01052 Oracle GoldenGate Capture for Oracle, ext3.prm: No recovery is required for target file /u01/ogg/11.2/dirdat/xs000000, at RBA 0 (file not opened). 2014-04-02 16:19:26 INFO OGG-01478 Oracle GoldenGate Capture for Oracle, ext3.prm: Output file /u01/ogg/11.2/dirdat/xs is using format RELEASE 11.2. 2014-04-02 16:19:26 INFO OGG-01517 Oracle GoldenGate Capture for Oracle, ext3.prm: Position of first record processed Sequence 1122, RBA 14423056, SCN 0.20548956, Apr 2, 2014 3:35:22 PM. 2014-04-02 16:19:29 INFO OGG-00987 Oracle GoldenGate Command Interpreter for Oracle: GGSCI command (oracle): start push3. 2014-04-02 16:19:29 INFO OGG-00963 Oracle GoldenGate Manager for Oracle, mgr.prm: Command received from GGSCI on host ora11g:52177 (START EXTRACT PUSH3 ). 2014-04-02 16:19:29 INFO OGG-00975 Oracle GoldenGate Manager for Oracle, mgr.prm: EXTRACT PUSH3 starting. 2014-04-02 16:19:29 INFO OGG-00992 Oracle GoldenGate Capture for Oracle, push3.prm: EXTRACT PUSH3 starting. 2014-04-02 16:19:29 INFO OGG-03035 Oracle GoldenGate Capture for Oracle, push3.prm: Operating system character set identified as UTF-8. Locale: en_US, LC_ALL:. 2014-04-02 16:19:29 INFO OGG-01815 Oracle GoldenGate Capture for Oracle, push3.prm: 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/11.2/dirtmp. 2014-04-02 16:19:29 INFO OGG-00993 Oracle GoldenGate Capture for Oracle, push3.prm: EXTRACT PUSH3 started. 2014-04-02 16:19:34 INFO OGG-01226 Oracle GoldenGate Capture for Oracle, push3.prm: Socket buffer size set to 27985 (flush size 27985). 2014-04-02 16:19:34 INFO OGG-01052 Oracle GoldenGate Capture for Oracle, push3.prm: No recovery is required for target file /u01/ogg/11.2/dirdat/xs000000, at RBA 0 (file not opened). 2014-04-02 16:19:34 INFO OGG-01478 Oracle GoldenGate Capture for Oracle, push3.prm: Output file /u01/ogg/11.2/dirdat/xs is using format RELEASE 11.2.
目的端进程：
GGSCI (nosql2) 21> info all Program Status Group Lag at Chkpt Time Since Chkpt MANAGER RUNNING REPLICAT RUNNING REP3 00:00:00 00:00:02 GGSCI (nosql2) 22>
目的端数据库：
mysql> select * from ah4; +----+--------+ | id | name | +----+--------+ | 1 | aaaccc | +----+--------+ 1 row in set (0.00 sec) mysql>
目的端的ogg日志：
2014-04-02 16:21:55 INFO OGG-00975 Oracle GoldenGate Manager for MySQL, mgr.prm: REPLICAT REP3 starting. 2014-04-02 16:21:55 INFO OGG-00995 Oracle GoldenGate Delivery for MySQL, rep3.prm: REPLICAT REP3 starting. 2014-04-02 16:21:55 INFO OGG-03035 Oracle GoldenGate Delivery for MySQL, rep3.prm: Operating system character set identified as UTF-8. Locale: en_US, LC_ALL:. 2014-04-02 16:21:55 INFO OGG-01815 Oracle GoldenGate Delivery for MySQL, rep3.prm: 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/11.2/dirtmp. 2014-04-02 16:21:55 INFO OGG-00996 Oracle GoldenGate Delivery for MySQL, rep3.prm: REPLICAT REP3 started. 2014-04-02 16:22:17 INFO OGG-00963 Oracle GoldenGate Manager for MySQL, mgr.prm: Command received from EXTRACT on host ::ffff:192.168.0.164 (START SERVER CPU -1 PRI -1 TIMEOUT 300 PARAMS ). 2014-04-02 16:22:17 INFO OGG-01677 Oracle GoldenGate Collector for MySQL: Waiting for connection (started dynamically). 2014-04-02 16:22:17 INFO OGG-00963 Oracle GoldenGate Manager for MySQL, mgr.prm: Command received from SERVER on host localhost.localdomain (REPORT 30868 7810). 2014-04-02 16:22:17 INFO OGG-00974 Oracle GoldenGate Manager for MySQL, mgr.prm: Manager started collector process (Port 7810). 2014-04-02 16:22:17 INFO OGG-01228 Oracle GoldenGate Collector for MySQL: Timeout in 300 seconds. 2014-04-02 16:22:22 INFO OGG-01229 Oracle GoldenGate Collector for MySQL: Connected to ::ffff:192.168.0.164:61104. 2014-04-02 16:22:22 INFO OGG-01669 Oracle GoldenGate Collector for MySQL: Opening /u01/ogg/11.2/dirdat/xs000000 (byte -1, current EOF 0). 2014-04-02 16:22:53 INFO OGG-03010 Oracle GoldenGate Delivery for MySQL, rep3.prm: Performing implicit conversion of column data from character set windows-936 to ISO-8859-1.
