GoldenGate配置(二)之双向复制配置 环境: Item Source System Target System Platform Red Hat Enterprise Linux Server release 5.4 Red Hat Enterprise Linux Server release 5.4 Hostname gc1 gc2 Database Oracle 10.2.0.1 Oracle 11.2.0.1 Character
GoldenGate配置(二)之双向复制配置
环境:
Item |
Source System |
Target System |
Platform |
Red Hat Enterprise Linux Server release 5.4 |
Red Hat Enterprise Linux Server release 5.4 |
Hostname |
gc1 |
gc2 |
Database |
Oracle 10.2.0.1 |
Oracle 11.2.0.1 |
Character Set |
ZHS16GBK |
ZHS16GBK |
ORACLE_SID |
PROD |
EMREP |
Listener Name/Port |
LISTENER/1521 |
LISTENER/1521 |
Goldengate User |
ogg |
ogg |
双向复制配置
说明:此篇续接第一篇“GoldenGate配置(一)之单向复制配置”之后继续进行配置关于上一篇,GoldenGate配置(一)之单向复制配置:点击打开链接双向复制配置操作:
gc2:授权
SQL>grant CONNECT, RESOURCE to ogg;
SQL>grant CREATE SESSION, ALTER SESSION to ogg;
SQL>grant SELECT ANY DICTIONARY, SELECT ANY TABLE to ogg;
SQL>grant ALTER ANY TABLE to ogg;
SQL>grant FLASHBACK ANY TABLE to ogg;
SQL>grant EXECUTE on DBMS_FLASHBACK to ogg;
gc1:授权
SQL>grant CONNECT, RESOURCE to ogg;
SQL>grant CREATE SESSION, ALTER SESSION to ogg;
SQL>grant SELECT ANY DICTIONARY, SELECT ANY TABLE to ogg;
SQL>grant CREATE TABLE to ogg;
SQL>grant INSERT, UPDATE, DELETE on scott.tcustmer to ogg;--把需要同步表的DML操作授权给ogg
SQL>grant INSERT, UPDATE, DELETE on scott.tcustord to ogg;--把需要同步表的DML操作授权给ogg
gc2:开启补充日志
SQL>alter database add supplemental log data;
SQL>alter system switch logfile;
SQL>alter database force logging;
gc2:测试表添加到补充日志
GGSCI(gc2) 1> DBLOGIN USERID ogg, PASSWORD Ogg
Successfully logged into database.
GGSCI(gc2) 2> ADD TRANDATA scott.TCUSTMER
Logging of supplemental redo data enabled fortable SCOTT.TCUSTMER.
GGSCI(gc2) 3> ADD TRANDATA scott.TCUSTORD
Logging of supplemental redo data enabled fortable SCOTT.TCUSTORD.
gc2:配置Extract进程
GGSCI(gc2) 4> EDIT PARAMS EORA_1
-- Change Capture parameter file to capture
-- TCUSTMER and TCUSTORD changes
EXTRACT EORA_1
SETENV (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
USERID ogg, PASSWORD Ogg
TRANLOGOPTIONS EXCLUDEUSER ogg
EXTTRAIL ./dirdat/aa
TABLE scott.TCUSTMER;
TABLE scott.TCUSTORD;
~
~
"dirprm/eora_1.prm" [New] 9L, 257Cwritten
GGSCI(gc2) 5> ADD EXTRACT EORA_1, TRANLOG, BEGIN NOW
EXTRACT added.
GGSCI(gc2) 6> ADD EXTTRAIL ./dirdat/aa, EXTRACT EORA_1, MEGABYTES 5
EXTTRAIL added.
GGSCI(gc2) 7> START EXTRACT EORA_1
Sending START request to MANAGER ...
EXTRACT EORA_1 starting
GGSCI(gc2) 8> INFO EXTRACT EORA_1
EXTRACT EORA_1 Last Started 2014-06-1811:28 Status RUNNING
Checkpoint Lag 00:00:19 (updated 00:00:08 ago)
Log Read Checkpoint Oracle Redo Logs
2014-06-18 11:27:42 Seqno 6, RBA 35344
gc2:配置Pump进程
GGSCI(gc2) 9> EDIT PARAMS PORA_1
添加以下内容:
-- Data Pump parameter file to read thelocal
-- trail of TCUSTMER and TCUSTORDchanges
--
EXTRACT PORA_1
SETENV(NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
PASSTHRU
RMTHOST gc1, MGRPORT 7809
RMTTRAIL ./dirdat/pa
TABLE scott.TCUSTMER;
TABLE scott.TCUSTORD;
~
~
~
"dirprm/pora_1.prm" [New] 10L, 250Cwritten
GGSCI(gc2) 10> ADD EXTRACT PORA_1, EXTTRAILSOURCE ./dirdat/aa
EXTRACT added.
GGSCI(gc2) 11> ADD RMTTRAIL ./dirdat/pa, EXTRACT PORA_1, MEGABYTES 5
RMTTRAIL added.
GGSCI(gc2) 12> START EXTRACT PORA_1
Sending START request to MANAGER ...
EXTRACT PORA_1 starting
gc1:配置Replicat进程
GGSCI(gc1) 1> EDIT PARAMS ./GLOBALS
CHECKPOINTTABLE ogg.ggschkpt
~
~
"./GLOBALS" [New] 1L, 29C written
GGSCI(gc1) 2> quit
[oracle@gc1ogg]$ ll GLOBALS --验证
-rw-rw-rw- 1 oracle oinstall 29 Jun 18 11:33GLOBALS
GGSCI(gc1) 1> DBLOGIN USERID ogg, PASSWORD Ogg
Successfully logged into database.
GGSCI(gc1) 2> ADD CHECKPOINTTABLE
No checkpoint table specified, using GLOBALSspecification (ogg.ggschkpt)...
Successfully created checkpoint tableOGG.GGSCHKPT.
gc1:配置Replicate进程
GGSCI(gc1) 3> EDIT PARAM RORA_1
--
-- Change Delivery parameter file to apply
-- TCUSTMER and TCUSTORD Changes
--
REPLICAT RORA_1
SETENV (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)
USERID ogg, PASSWORD Ogg
HANDLECOLLISIONS
ASSUMETARGETDEFS
DISCARDFILE ./dirrpt/RORA_aa.DSC, PURGE
MAP scott.tcustmer, TARGET scott.tcustmer;
MAP scott.tcustord, TARGET scott.tcustord;
~
~
"dirprm/rora_1.prm" [New] 12L, 327Cwritten
GGSCI(gc1) 4> ADD REPLICAT RORA_1, EXTTRAIL ./dirdat/pa
REPLICAT added.
GGSCI(gc1) 5> START REPLICAT RORA_1
Sending START request to MANAGER ...
REPLICAT RORA_1 starting
gc1:查看进程状态
GGSCI(gc1) 6> info all
Program Status Group Lag Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EORA_1 00:00:00 00:00:08
EXTRACT RUNNING PORA_1 00:00:00 00:00:01
REPLICAT RUNNING RORA_1 00:00:00 00:00:06
gc2:查看进程状态
GGSCI(gc2) 13> info all
Program Status Group Lag Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING EORA_1 00:00:00 00:00:09
EXTRACT RUNNING PORA_1 00:00:00 00:00:06
REPLICAT RUNNING RORA_1 00:00:00 00:00:01
验证insert操作双向同步
gc1: gc1→gc2,DML操作:insert操作
SQL>insert into tcustmer VALUES('HYL','HUANG DBA.','HARBIN','CN');
1 row created.
SQL>commit;
Commit complete.
gc2:验证insert操作同步
SQL>select * from tcustmer;
CUST NAME CITY ST
---- -------------------------------------------------- --
HYL HUANGDBA. HARBIN CN
WILL BG SOFTWARE CO. SEATTLE WA
JANE ROCKY FLYER INC. DENVER CO
gc2:gc2→gc1,DML操作:insert操作
SQL>insert into tcustmer VALUES('WT','WANGDBA.','QINGDAO','CN');
1 row created.
SQL>commit;
Commit complete.
gc1:gc1→gc2,DML操作:update操作
SQL>select * from tcustmer;
CUST NAME CITY ST
---- -------------------------------------------------- --
HYL HUANGDBA. HARBIN CN
WILL BG SOFTWARE CO. SEATTLE WA
JANE ROCKY FLYER INC. DENVER CO
WT WANGDBA. QINGDAO CN
gc1:update操作
SQL>update tcustmer set city = 'BEIJING', state = 'CN' wherecust_code='HYL';
1 row updated.
SQL>commit;
Commit complete.
gc2:验证update操作同步
SQL>select * from tcustmer;
CUST NAME CITY ST
---- ------------------------------ ----------------------
HYL HUANGDBA. BEIJING CN
WILL BG SOFTWARE CO. SEATTLE WA
JANE ROCKY FLYER INC. DENVER CO
WT WANGDBA. QINGDAO CN
gc2:gc2→gc1,DML操作:update操作
SQL>update tcustmer set city = 'BEIJING', state = 'CN' wherecust_code='WT';
1 row updated.
SQL>commit;
Commit complete.
gc1:验证update操作同步
SQL>select * from tcustmer;
CUST NAME CITY ST
---- -------------------------------------------------- --
HYL HUANGDBA. BEIJING CN
WILL BG SOFTWARE CO. SEATTLE WA
JANE ROCKY FLYER INC. DENVER CO
WT WANGDBA. BEIJING CN
gc1:gc1→gc2,DML操作:delete操作
SQL>delete from tcustmer where CUST_CODE='WT';
1 row deleted.
SQL>commit;
Commit complete.
gc2:验证delete操作同步
SQL>select * from tcustmer;
CUST NAME CITY ST
---- -------------------------------------------------- --
HYL HUANGDBA. BEIJING CN
WILL BG SOFTWARE CO. SEATTLE WA
JANE ROCKY FLYER INC. DENVER CO
gc2:gc2→gc1,DML操作:delete操作
SQL>delete from tcustmer where CUST_CODE='HYL';
1 row deleted.
SQL>commit;
Commit complete.
gc1:验证delete操作同步
SQL>select * from TCUSTMER;
CUST NAME CITY ST
---- -------------------------------------------------- --
WILL BG SOFTWARE CO. SEATTLE WA
JANE ROCKY FLYER INC. DENVER CO
--至此,GoldenGate双向同步复制完成
声明:
原创作品,出自 “深蓝的blog” 博客,允许转载,转载时请务必注明出处(http://blog.csdn.net/huangyanlong)。
关于涉及版权事宜,作者有权追究法律责任。

InnoDB使用redologs和undologs确保数据一致性和可靠性。1.redologs记录数据页修改,确保崩溃恢复和事务持久性。2.undologs记录数据原始值,支持事务回滚和MVCC。

EXPLAIN命令的关键指标包括type、key、rows和Extra。1)type反映查询的访问类型,值越高效率越高,如const优于ALL。2)key显示使用的索引,NULL表示无索引。3)rows预估扫描行数,影响查询性能。4)Extra提供额外信息,如Usingfilesort提示需要优化。

Usingtemporary在MySQL查询中表示需要创建临时表,常见于使用DISTINCT、GROUPBY或非索引列的ORDERBY。可以通过优化索引和重写查询避免其出现,提升查询性能。具体来说,Usingtemporary出现在EXPLAIN输出中时,意味着MySQL需要创建临时表来处理查询。这通常发生在以下情况:1)使用DISTINCT或GROUPBY时进行去重或分组;2)ORDERBY包含非索引列时进行排序;3)使用复杂的子查询或联接操作。优化方法包括:1)为ORDERBY和GROUPB

MySQL/InnoDB支持四种事务隔离级别:ReadUncommitted、ReadCommitted、RepeatableRead和Serializable。1.ReadUncommitted允许读取未提交数据,可能导致脏读。2.ReadCommitted避免脏读,但可能发生不可重复读。3.RepeatableRead是默认级别,避免脏读和不可重复读,但可能发生幻读。4.Serializable避免所有并发问题,但降低并发性。选择合适的隔离级别需平衡数据一致性和性能需求。

MySQL适合Web应用和内容管理系统,因其开源、高性能和易用性而受欢迎。1)与PostgreSQL相比,MySQL在简单查询和高并发读操作上表现更好。2)相较Oracle,MySQL因开源和低成本更受中小企业青睐。3)对比MicrosoftSQLServer,MySQL更适合跨平台应用。4)与MongoDB不同,MySQL更适用于结构化数据和事务处理。

MySQL索引基数对查询性能有显着影响:1.高基数索引能更有效地缩小数据范围,提高查询效率;2.低基数索引可能导致全表扫描,降低查询性能;3.在联合索引中,应将高基数列放在前面以优化查询。

MySQL学习路径包括基础知识、核心概念、使用示例和优化技巧。1)了解表、行、列、SQL查询等基础概念。2)学习MySQL的定义、工作原理和优势。3)掌握基本CRUD操作和高级用法,如索引和存储过程。4)熟悉常见错误调试和性能优化建议,如合理使用索引和优化查询。通过这些步骤,你将全面掌握MySQL的使用和优化。

MySQL在现实世界的应用包括基础数据库设计和复杂查询优化。1)基本用法:用于存储和管理用户数据,如插入、查询、更新和删除用户信息。2)高级用法:处理复杂业务逻辑,如电子商务平台的订单和库存管理。3)性能优化:通过合理使用索引、分区表和查询缓存来提升性能。


热AI工具

Undresser.AI Undress
人工智能驱动的应用程序,用于创建逼真的裸体照片

AI Clothes Remover
用于从照片中去除衣服的在线人工智能工具。

Undress AI Tool
免费脱衣服图片

Clothoff.io
AI脱衣机

AI Hentai Generator
免费生成ai无尽的。

热门文章

热工具

螳螂BT
Mantis是一个易于部署的基于Web的缺陷跟踪工具,用于帮助产品缺陷跟踪。它需要PHP、MySQL和一个Web服务器。请查看我们的演示和托管服务。

ZendStudio 13.5.1 Mac
功能强大的PHP集成开发环境

Dreamweaver CS6
视觉化网页开发工具

SublimeText3 英文版
推荐:为Win版本,支持代码提示!

SublimeText3 Linux新版
SublimeText3 Linux最新版