Oracle GoldenGate 系列：配置 Data Pump 进程实现多点传输
RMTHOST
Valid for Extract
Use the RMTHOST parameterto:
● Identifya remote system to which the local Extract process connects
● Specifythe TCP/IP port number on that system where the Manager process is running
● Controlvarious attributes of the TCP/IP connections
This parametercontrols compression, data encryption, buffer attributes, TCP/IP
streaming,connection timeout threshold, and the wait period for a connection request. It
also can be used toset Collector parameters.
To identifymultiple remote systems in a parameter file, use one RMTHOST statement for
each one, followedby the associated trails and table maps, for example:
EXTRACTsales
USERIDggs, PASSWORD AACAAAAAAAAAAAJAUEUGODSCVGJEEIUGKJDJTFNDKEJFFFTC &
AES128,ENCRYPTKEY securekey1
RMTHOSTny, MGRPORT 7888, ENCRYPT AES 192 KEYNAME mykey
RMTTRAIL/ggs/dirdat/aa
TABLEora.orders;
RMTHOSTla, MGRPORT 7888, ENCRYPT AES 192 KEYNAME mykey2
RMTTRAIL/ggs/dirdat/bb
TABLEora.orders;
Do not use RMTHOST for anExtract created in PASSIVE mode. See page 17 for more
information about a passive Extract.
ADD RMTTRAIL
Use ADD RMTTRAIL tocreate a trail for online processing on a remote system and:
● Assigna maximum file size.
● Associatethe trail with an Extract group.
In the parameterfile, specify a RMTHOST entry before any RMTTRAIL entries to identify the
remote system andTCP/IP port for the Manager process.
Syntax ADD RMTTRAIL
[,MEGABYTES
[, SEQNO
示例：
修改PSCOTT 参数,加入紫色部分内容：
EXTRACT pscott
SETENV (NLS_LANG=AMERICAN_AMERICA.AL32UTF8)
PASSTHRU
RMTHOST 192.168.8.180, MGRPORT 7809
RMTTRAIL ./dirdat/pa
TABLE ;
TABLE scott.DEPT_GGS;
RMTHOST 192.168.8.160,MGRPORT 7809
RMTTRAIL ./dirdat/bb
TABLE scott.EMP_GGS;
RMTHOST192.168.8.180, MGRPORT 7809
RMTTRAIL ./dirdat/cc
TABLE scott.DEPT_GGS;
停止 PSCOTT 进程，尝试启动 PSCOTT 进程失败，报：
2013-05-08 11:21:08 ERROR OGG-01044 The trail './dirdat/bb'is not assigned to extract 'PSCOTT'. Assign the trail to the
extract with the command "ADDEXTTRAIL/RMTTRAIL ./dirdat/bb, EXTRACT PSCOTT".
2013-05-08 11:21:08 ERROR OGG-01668 PROCESS ABENDING.
执行紫色部分命令
--先前已执行
--Add extract PSCOTT, exttrailsource ./dirdat/xh
--Add rmttrail ./dirdat/pa, extract PSCOTT,megabytes 5
--新加 rmttrail
Add rmttrail./dirdat/bb, extract PSCOTT, megabytes 5
Add rmttrail./dirdat/cc, extract PSCOTT, megabytes 5
再次启动成功
验证192.168.8.160 ./dirdat/bb 和192.168.8.180 ./dirdat/cc是否生成
DML 测试
如果在源端对scott.EMP_GGS 和scott.DEPT_GGS 执行 insert操作，理论上./dirdat/bb 只有
Scott.EMP_GGS de 变化，./dirdat/cc 只有cott.DEPT_GGS 的变化。
Stop pecott
alter pscottetrollover
insertinto scott.dept_ggsvalues (50,'MAOMI','MIMI');
commit;
insertinto scott.emp_ggsvalues (9999,'MAOMI','CLERK','7369',sysdate,800.00,500,30);
commit;
logdump 查看192.168.8.160./dirdat/bb 和192.168.8.180 ./dirdat/cc的内容,证实上述假设成立。
加入多个 rmthost 和 rmttrail 后，pump 进程按照两个参数组合在参数文件中的位置按照顺序进行投递，如果往其中一个投递目标投递阻断，则该投递目标往后配置的投递均会阻断。
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http://blog.csdn.net/xiangsir/article/details/8927644