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實(shí)驗(yàn)環(huán)境
數(shù)據(jù)源端: host1 ip 192.168.199.163
數(shù)據(jù)目標(biāo)端: host2 ip 192.168.199.104
兩臺(tái)機(jī)器都安裝 http://lqding.blog.51cto.com/9123978/1694971 文中描述安裝配置好了Goldengate 。
要實(shí)現(xiàn)數(shù)據(jù)的同步,Oracle源端必須滿足如下設(shè)置
Oracle需要運(yùn)行在歸檔模式下
SQL> startup mount ORACLE instance started. Total System Global Area 835104768 bytes Fixed Size 2217952 bytes Variable Size 574621728 bytes Database Buffers 255852544 bytes Redo Buffers 2412544 bytes Database mounted. SQL> alter database archivelog; Database altered. SQL> alter database open; Database altered.
2. 開啟日志附加屬性
SQL> ALTER DATABASE ADD SUPPLEMENTAL LOG DATA; Database altered. SQL> ALTER SYSTEM SWITCH LOGFILE; System altered.
ogg安裝目錄下提供了一些demo的sql
[oracle@localhost ogg]$ ls demo_ora_* demo_ora_create.sql demo_ora_insert.sql demo_ora_lob_create.sql demo_ora_misc.sql demo_ora_pk_befores_create.sql demo_ora_pk_befores_insert.sql demo_ora_pk_befores_updates.sql
我們使用demo_ora_create.sql在源和目的端都創(chuàng)建兩張表,在源端使用demo_ora_insert.sql插入數(shù)據(jù)。
host1
SQL> alter user scott identified by tiger account unlock; User altered. SQL> grant resource to scott; #ggsci 登錄數(shù)據(jù)庫時(shí)需要該權(quán)限 Grant succeeded. SQL> grant select any dictionary to scott; # add trandata時(shí)需要該權(quán)限 Grant succeeded. SQL> conn scott/tiger Connected. SQL> @demo_ora_create.sql SQL> @demo_ora_insert.sql
host2
SQL> alter user scott identified by tiger account unlock; User altered. SQL> grant resource to scott; #ggsci 登錄數(shù)據(jù)庫時(shí)需要該權(quán)限 Grant succeeded. SQL> grant select any dictionary to scott; # add trandata時(shí)需要該權(quán)限 SQL> conn scott/tiger Connected. SQL> @demo_ora_create.sql
為需要同步的表,添加附加日志
GGSCI (localhost.localdomain) 1> dblogin userid scott, password tiger Successfully logged into database. GGSCI (localhost.localdomain) 2> add trandata scott.tcustmer Logging of supplemental redo data enabled for table SCOTT.TCUSTMER. GGSCI (localhost.localdomain) 3> add trandata scott.tcustord Logging of supplemental redo data enabled for table SCOTT.TCUSTORD.
一、初始化加載數(shù)據(jù)
在源端配置一個(gè)初始化Extract,用來同步表中現(xiàn)有數(shù)據(jù)
GGSCI (localhost.localdomain) 7> ADD EXTRACT EINILOAD, SOURCEISTABLE EXTRACT added.
ADD EXTRACT命令用來添加一個(gè)EXTRACT, EINILOAD為Extract的group name 。SOURCEISTABLE表示數(shù)據(jù)源為表。
查看Extract的信息
GGSCI (localhost.localdomain) 9> INFO EXTRACT *, TASKS EXTRACT EINILOAD Initialized 2015-09-11 15:25 Status STOPPED Checkpoint Lag Not Available Log Read Checkpoint Not Available First Record Record 0 Task SOURCEISTABLE
配置初始化加載的捕獲參數(shù)
GGSCI (localhost.localdomain) 10> edit params EINILOAD -- -- GoldenGate Initial Data Capture -- for TCUSTMER and TCUSTORD -- EXTRACT EINILOAD USERID system, PASSWORD "oracle" RMTHOST 192.168.199.104, MGRPORT 7809 RMTTASK REPLICAT, GROUP RINILOAD TABLE SCOTT.TCUSTMER; TABLE SCOTT.TCUSTORD;
在目標(biāo)端,配置一個(gè)REPLICAT
GGSCI (localhost.localdomain) 2> ADD REPLICAT RINILOAD, SPECIALRUN REPLICAT added.
查看REPLICAT信息
GGSCI (localhost.localdomain) 4> info replicat *, tasks REPLICAT RINILOAD Initialized 2015-08-22 14:18 Status STOPPED Checkpoint Lag 00:00:00 (updated 00:02:50 ago) Log Read Checkpoint Not Available Task SPECIALRUN
配置Replicat參數(shù)
GGSCI (localhost.localdomain) 5> edit params riniload -- -- GoldenGate Initial Load Delivery -- REPLICAT RINILOAD ASSUMETARGETDEFS USERID system, PASSWORD "oracle" DISCARDFILE ./dirrpt/RINILOAD.dsc, PURGE MAP scott.*, TARGET scott.*;
啟動(dòng)Extract
GGSCI (localhost.localdomain) 11> start extract einiload Sending START request to MANAGER ... EXTRACT EINILOAD starting
查看日志
GGSCI (localhost.localdomain) 21> view report einiload
如果有報(bào)錯(cuò),查找原因并解決
Processing table SCOTT.TCUSTMER Processing table SCOTT.TCUSTORD *********************************************************************** * ** Run Time Statistics ** * *********************************************************************** Report at 2015-09-11 16:23:40 (activity since 2015-09-11 16:23:33) Output to RINILOAD: From Table SCOTT.TCUSTMER: # inserts: 2 # updates: 0 # deletes: 0 # discards: 0 From Table SCOTT.TCUSTORD: # inserts: 2 # updates: 0 # deletes: 0 # discards: 0 REDO Log Statistics Bytes parsed 0 Bytes output 574
日志顯示,已成功同步數(shù)據(jù)。
到目的庫上驗(yàn)證
SQL> select count(*) from tcustmer; COUNT(*) ---------- 2 SQL> select count(*) from tcustord; COUNT(*) ---------- 2
二、配置數(shù)據(jù)實(shí)時(shí)同步
源端,配置一個(gè)實(shí)時(shí)Extract
GGSCI (localhost.localdomain) 22> ADD EXTRACT EORAKK, TRANLOG, BEGIN NOW, THREADS 1 EXTRACT added.
編輯Extract的參數(shù)文件
GGSCI (localhost.localdomain) 23> EDIT PARAMS EORAKK -- -- Change Capture parameter file to capture -- TCUSTMER and TCUSTORD Changes -- EXTRACT EORAKK USERID system, PASSWORD oracle RMTHOST 192.168.199.104, MGRPORT 7809 RMTTRAIL ./dirdat/KK TABLE SCOTT.TCUSTMER; TABLE SCOTT.TCUSTORD;
為Extract添加遠(yuǎn)端tail file,也就是說這個(gè)tail file是在目的端生成的。
GGSCI (localhost.localdomain) 24> ADD RMTTRAIL ./dirdat/KK, EXTRACT EORAKK, MEGABYTES 5 RMTTRAIL added.
驗(yàn)證結(jié)果
GGSCI (localhost.localdomain) 28> INFO RMTTRAIL * Extract Trail: ./dirdat/KK Extract: EORAKK Seqno: 0 RBA: 0 File Size: 5M
啟動(dòng)Extract 進(jìn)程
GGSCI (localhost.localdomain) 29> start extract eorakk Sending START request to MANAGER ... EXTRACT EORAKK starting
驗(yàn)證結(jié)果
GGSCI (localhost.localdomain) 30> INFO EXTRACT EORAKK, DETAIL EXTRACT EORAKK Last Started 2015-09-11 17:07 Status RUNNING Checkpoint Lag 00:00:00 (updated 00:00:01 ago) Log Read Checkpoint Oracle Redo Logs 2015-09-11 17:07:47 Thread 1, Seqno 25, RBA 36139008 SCN 0.1174781 (1174781) Target Extract Trails: Remote Trail Name Seqno RBA Max MB ./dirdat/KK 0 1050 5 Extract Source Begin End /u01/app/oracle/oradata/orcl/redo01.log 2015-09-11 16:58 2015-09-11 17:07 Not Available * Initialized * 2015-09-11 16:58 Current directory /u01/app/ogg Report file /u01/app/ogg/dirrpt/EORAKK.rpt Parameter file /u01/app/ogg/dirprm/eorakk.prm Checkpoint file /u01/app/ogg/dirchk/EORAKK.cpe Process file /u01/app/ogg/dirpcs/EORAKK.pce Stdout file /u01/app/ogg/dirout/EORAKK.out Error log /u01/app/ogg/ggserr.log
GGSCI (localhost.localdomain) 31> VIEW REPORT EORAKK
GGSCI (localhost.localdomain) 32> INFO ALL Program Status Group Lag at Chkpt Time Since Chkpt MANAGER RUNNING EXTRACT RUNNING EORAKK 00:00:00 00:00:06
目標(biāo)端,配置REPLICAT
安裝checkpoint表
配置checkpoint表的名稱
GGSCI (localhost.localdomain) 33> EDIT PARAMS ./GLOBALS HECKPOINTTABLE system.ggschkpt
生成checkpoint表
GGSCI (localhost.localdomain) 1> DBLOGIN USERID system, PASSWORD oracle Successfully logged into database. GGSCI (localhost.localdomain) 2> ADD CHECKPOINTTABLE No checkpoint table specified, using GLOBALS specification (system.ggschkpt)... Successfully created checkpoint table system.ggschkpt. GGSCI (localhost.localdomain) 3>
添加Replicat
GGSCI (localhost.localdomain) 3> ADD REPLICAT RORAKK, EXTTRAIL ./dirdat/KK REPLICAT added.
創(chuàng)建Replicat的參數(shù)文件
GGSCI (localhost.localdomain) 4> EDIT PARAMS RORAKK -- -- Change Delivery parameter file to apply -- TCUSTMER and TCUSTORD Changes -- REPLICAT RORAKK USERID system, PASSWORD oracle HANDLECOLLISIONS ASSUMETARGETDEFS DISCARDFILE ./dirrpt/RORAKK.DSC, PURGE MAP scott.tcustmer, TARGET scott.tcustmer; MAP scott.tcustord, TARGET scott.tcustord;
啟動(dòng)Replicat
GGSCI (localhost.localdomain) 5> start replicat rorakk Sending START request to MANAGER ... REPLICAT RORAKK starting
驗(yàn)證結(jié)果
GGSCI (localhost.localdomain) 6> info replicat rorakk REPLICAT RORAKK Last Started 2015-08-22 15:49 Status RUNNING Checkpoint Lag 00:00:00 (updated 00:00:08 ago) Log Read Checkpoint File ./dirdat/KK000000 First Record RBA 1050
驗(yàn)證數(shù)據(jù)同步
在源數(shù)據(jù)庫,執(zhí)行如下腳本,對(duì)兩個(gè)表進(jìn)行insert、update、delete操作
[oracle@localhost ogg]$ sqlplus scott/tiger SQL*Plus: Release 11.2.0.1.0 Production on Fri Sep 11 17:58:17 2015 Copyright (c) 1982, 2009, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> @/u01/app/ogg/demo_ora_misc.sql
查看源表中的數(shù)據(jù)
SQL> select count(*) from tcustmer; COUNT(*) ---------- 5 SQL> select count(*) from tcustord; COUNT(*) ---------- 3
查看目的表的數(shù)據(jù)
SQL> select count(*) from tcustmer; COUNT(*) ---------- 5 SQL> select count(*) from tcustord; COUNT(*) ---------- 3
數(shù)據(jù)已同步
三、為同步添加data pump
如果沒有data pump,Extract將Trail file寫到遠(yuǎn)程機(jī)器上。如果為Extract配置了Data Pump。那么Extract將Trail file寫到本地。然后Trail 文件由Data Pump傳輸?shù)竭h(yuǎn)端。
先修改Extract的配置
GGSCI (localhost.localdomain) 1> info all Program Status Group Lag at Chkpt Time Since Chkpt MANAGER RUNNING EXTRACT RUNNING EORAKK 00:00:00 00:00:09 GGSCI (localhost.localdomain) 2> stop extract eorakk Sending STOP request to EXTRACT EORAKK ... Request processed. GGSCI (localhost.localdomain) 3> edit params eorakk -- -- Change Capture parameter file to capture -- TCUSTMER and TCUSTORD Changes -- EXTRACT EORAKK USERID system, PASSWORD oracle RMTHOST 192.168.199.104, MGRPORT 7809 EXTTRAIL ./dirdat/KK TABLE SCOTT.TCUSTMER; TABLE SCOTT.TCUSTORD;
將參數(shù)文件中的RMTTRAIL ./dirdat/kk 改為 EXTTRAIL ./dirdat/KK
2. 刪除Extract的遠(yuǎn)程Trail
GGSCI (localhost.localdomain) 7> DELETE RMTTRAIL ./dirdat/KK Deleting extract trail ./dirdat/KK for extract EORAKK
3. 增加一個(gè)本地Trail
GGSCI (localhost.localdomain) 10> ADD EXTTRAIL ./dirdat/KK, EXTRACT eorakk EXTTRAIL added.
4. 新增Data pump
GGSCI (localhost.localdomain) 12> ADD EXTRACT EPMPKK, EXTTRAILSOURCE ./dirdat/KK EXTRACT added.
Data pump本質(zhì)上也是一個(gè)Extract,只是類型不同而已
為data pump配置參數(shù)文件
GGSCI (localhost.localdomain) 14> edit params epmpkk -- -- Data Pump parameter file -- EXTRACT EPMPKK PASSTHRU RMTHOST 192.168.199.104, MGRPORT 7809 RMTTRAIL ./dirdat/KK TABLE SCOTT.TCUSTMER; TABLE SCOTT.TCUSTORD;
為Data Pump添加遠(yuǎn)端Trail
GGSCI (localhost.localdomain) 15> add rmttrail ./dirdat/KK, EXTRACT EPMPKK RMTTRAIL added.
啟動(dòng)Extract、Data Pump
GGSCI (localhost.localdomain) 16> start extract eorakk Sending START request to MANAGER ... EXTRACT EORAKK starting GGSCI (localhost.localdomain) 17> start extract epmpkk Sending START request to MANAGER ... EXTRACT EPMPKK starting
驗(yàn)證數(shù)據(jù)同步
在源端,刪除兩個(gè)表的內(nèi)容
SQL> delete from tcustmer; 5 rows deleted. SQL> delete from tcustord; 3 rows deleted. SQL> commit; Commit complete.
查看目的端表內(nèi)容
SQL> select * from tcustmer; no rows selected SQL> select * from tcustord; no rows selected
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