OOG：一臺服務器兩個實例之間的OGG

這裏必須報怨，提出這個測試的兄弟做的時候出問題了，然後我說做出來給他。但是他現在網吧打遊戲mmp！！！

測試目的及思路

本文主要測試目的：驗證一臺多實例的服務器上是否可以通過OGG來實習實例之間的同步（一臺主機上兩個實例之間表數據通過OGG同步）
主要思路：一般我們OGG的思路是抽取、傳送、應用。雖然OGG有很多種應用方式，但大多都是多臺服務器，畢竟很少遇到一臺服務器兩個庫之間做ogg。當我兄弟問我這個環境是否可以通過OGG同步，我第一反應是可以，大概實現方式就是抽取出來放在本地直接應用就好了。（經過測試的確可以）

環境描述

操作系統：RatHat Linux 6.5 x64
主機名：source.zhan
IP地址：192.168.214.52
數據庫版本：11.2.0.4 x64
數據庫SID：zhankys（源）、zhankyd（目的）
OGG版本：12.1.2.1

環境準備

創建所需目錄並授權

--賦權給安裝包
mkdir -p /soft
chown -R oracle:oinstall /soft
chmod -R 775 /soft
--歸檔日誌路徑
mkdir -p /archivelog/zhankys
mkdir -p /archivelog/zhankyd
chown -R oracle:oinstall /archivelog
chmod -R 775 /archivelog
--創建OGG安裝目錄
mkdir /ogg
chown -R oracle:oinstall /ogg
chmod -R 775 /ogg
--設置OGG環境變量
echo 'export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib'>>/home/oracle/.bash_profile

數據庫準備(zhankys)

--登錄數據庫
export ORACLE_SID=zhankys
sqlplus / as sysdba
--創建ogg賬戶
create tablespace ogg_tablespace datafile '/u01/app/oracle/oradata/zhankys/ogg01.dbf' size 10m autoextend on next 5m;
create user goldengate identified by goldengate default tablespace ogg_tablespace;
grant dba to goldengate;
--查看歸檔、強制日誌模式、數據庫級別的補充日誌是否開啓（注意歸檔存放目錄）
archive log list;
select force_logging,supplemental_log_data_min from v$database;
show parameter enable_goldengate_replication;

--開啓歸檔
shutdow immediate
start mount
alter database archivelog;
alter system set log_archive_dest_1='location=/archivelog/zhankys' scope =both;
alter database open;
--開啓數據庫強制日誌模式、數據庫級別的補充日誌
alter database force logging;
alter database add supplemental log data;
--修改允許使用ogg的參數（針對11.2.0.4庫）
ALTER SYSTEM SET ENABLE_GOLDENGATE_REPLICATION = TRUE SCOPE=BOTH;

數據庫準備(zhankyd)

--登錄數據庫
export ORACLE_SID=zhankyd
sqlplus / as sysdba
--創建ogg賬戶
--創建ogg賬戶
create tablespace ogg_tablespace datafile '/u01/app/oracle/oradata/zhankyd/ogg01.dbf' size 10m autoextend on next 5m;
create user goldengate identified by goldengate default tablespace ogg_tablespace;
grant dba to goldengate;
--查看歸檔、強制日誌模式、數據庫級別的補充日誌是否開啓（注意歸檔存放目錄）
archive log list;
select force_logging,supplemental_log_data_min from v$database;
show parameter enable_goldengate_replication;

--開啓歸檔
shutdow immediate
start mount
alter database archivelog;
alter system set log_archive_dest_1='location=/archivelog/zhankyd' scope =both;
alter database open;
--開啓數據庫強制日誌模式、數據庫級別的補充日誌
alter database force logging;
alter database add supplemental log data;
--修改允許使用ogg的參數（針對11.2.0.4庫）
ALTER SYSTEM SET ENABLE_GOLDENGATE_REPLICATION = TRUE SCOPE=BOTH;

更改tnsname(源目的相同)

vi /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora 
{
ZHANKYS =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST =192.168.214.52)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = ZHANKYS)
    )
  )

ZHANKYD =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST =192.168.214.52)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = ZHANKYD)
    )
  )
}

初始化數據準備（兩個庫都建）

connect goldengate/goldengate
--創建表
DROP TABLE tcustmer;
CREATE TABLE tcustmer ( cust_code VARCHAR(4) NOT NULL, name VARCHAR(30),
city VARCHAR(20), state CHAR(2), PRIMARY KEY (cust_code));
DROP TABLE tcustord;
CREATE TABLE tcustord ( cust_code VARCHAR(4) NOT NULL, product_code VARCHAR(8) NOT NULL,
order_id INTEGER NOT NULL, product_price DECIMAL(8,2), product_amount INTEGER,
transaction_id INTEGER, PRIMARY KEY (cust_code, product_code, order_id) );

select * from goldengate.tcustmer;
select * from goldengate.tcustord;

安裝OGG

OGG軟件安裝

xhost +
su - oracle
cd /soft
unzip 121210_ggs_Linux_x64_shiphome.zip
cd fbo_ggs_Linux_x64_shiphome/Disk1/
./runInstaller

配置OGG參數

創建ogg目錄

cd /ogg
./ggsci
create subdirs

創建checkpoint表（注意dblogin到兩個庫都創建）

--源主機創建checkpoint表
{
dblogin userid goldengate@zhankys,password goldengate
add checkpointtable goldengate.ggs_checkpoint
}
--源實例創建完後exit在登錄目的庫建checkpoint表
{
dblogin userid goldengate@zhankyd,password goldengate
add checkpointtable goldengate.ggs_checkpoint
}

設置globals

edit params ./globals
{
UNLOCKEDTRAILFILES
}

配置MGR

edit params mgr
{
PORT 7809
AUTOSTART ER *
AUTORESTART ER *,RETRIES 3,WAITMINUTES 5,RESETMINUTES 60
LAGREPORTHOURS 1
LAGINFOMINUTES 3
LAGCRITICALMINUTES 10
PURGEOLDEXTRACTS ./dirdat/*,USECHECKPOINTS,MINKEEPDAYS 3
}
start mgr

配置需要trandata的對象（跟蹤的表爲源庫，注意dblogin登錄是否源庫）

dblogin userid goldengate@zhankys,password goldengate
add trandata goldengate.tcustmer
add trandata goldengate.tcustord
info trandata goldengate.*

配置extract（注意userid指定抽取的庫）

add extract e_single,tranlog,begin now
add exttrail ./dirdat/single,extract b_e_29,megabytes 5 
edit param e_single 
{
EXTRACT e_single
SETENV (NLS_LANG="AMERICAN_AMERICA.ZHS16GBK")
GETENV (NLS_LANG)
userid goldengate@zhankys,password goldengate
EXTTRAIL ./dirdat/single,FORMAT RELEASE 12.1
DISCARDFILE ./dirrpt/e_single.dsc,PURGE
--NOCOMPRESSDELETES
NOCOMPRESSUPDATES
GETUPDATEBEFORES
GETUPDATEAFTERS
TRANLOGOPTIONS LOGRETENTION disabled
WARNLONGTRANS 30m,CHECKINTERVAL 3m

table goldengate.tcustmer;
table goldengate.tcustord;
}
start e_single
info e_single

配置replicat（注意userid指定應用的庫）

dblogin userid goldengate@zhankyd,password goldengate
add replicat r_single,exttrail ./dirdat/single,checkpointtable goldengate.ggs_checkpoint
edit param r_single
{
REPLICAT r_single
SETENV (NLS_LANG="AMERICAN_AMERICA.ZHS16GBK")
GETENV (NLS_LANG)
USERID goldengate@zhankyd,PASSWORD goldengate
HANDLECOLLISIONS
ASSUMETARGETDEFS
REPERROR DEFAULT,DISCARD
DBOPTIONS NOSUPPRESSTRIGGERS
DISCARDFILE ./dirrpt/b_r_29.dsc,PURGE

MAP goldengate.TCUSTMER, TARGET goldengate.TCUSTMER;
MAP goldengate.TCUSTORD, TARGET goldengate.TCUSTORD;
}
start r_single
info r_single

校驗結果語句

select * from goldengate.TCUSTMER;
select * from goldengate.TCUSTORD;

INSERT INTO goldengate.tcustmer VALUES ('ZZZ','BG SOFTWARE CO.','SEATTLE','WZ');
INSERT INTO goldengate.tcustord VALUES ('ZZZ','CAR',144,17520,3,100);
COMMIT;

INSERT INTO goldengate.tcustmer VALUES ('ZqZZ','BqG SOFTWARE CO.','SEATTLE','WZ');
INSERT INTO goldengate.tcustord VALUES ('ZqZZ','CAR',144,17520,3,100);
COMMIT;

INSERT INTO goldengate.tcustmer VALUES ('ZbZ','BzG SOFTWARE CO.','SEATTLE','WZ');
INSERT INTO goldengate.tcustord VALUES ('ZbZ','CAR',144,17520,3,100);
COMMIT;

INSERT INTO goldengate.tcustmer VALUES ('ZghZ','BG SOFTWARE CO.','SEATTLE','WZ');
INSERT INTO goldengate.tcustord VALUES ('ZghZ','CAR',144,17520,3,100);
COMMIT;

delete goldengate.tcustmer where cust_code='ZZZ';
delete goldengate.tcustord where cust_code='ZZZ';
delete goldengate.tcustmer where cust_code='ZqZZ';
delete goldengate.tcustord where cust_code='ZqZZ';
delete goldengate.tcustmer where cust_code='ZbZ';
delete goldengate.tcustord where cust_code='ZbZ';
delete goldengate.tcustmer where cust_code='ZghZ';
delete goldengate.tcustord where cust_code='ZghZ';
commit;