標籤:goldengate 資料同步
實驗環境
資料來源端: host1 ip 192.168.199.163
資料目標端: host2 ip 192.168.199.104
兩台機器都安裝 http://lqding.blog.51cto.com/9123978/1694971 文中描述安裝配置好了Goldengate 。
要實現資料的同步,Oracle源端必須滿足如下設定
Oracle需要運行在歸檔模式下
SQL> startup mount ORACLE instance started.Total System Global Area 835104768 bytesFixed Size 2217952 bytesVariable Size 574621728 bytesDatabase Buffers 255852544 bytesRedo Buffers 2412544 bytesDatabase mounted.SQL> alter database archivelog;Database altered.SQL> alter database open;Database altered.
2. 開啟日誌附加屬性
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
[[email protected] 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在源和目的端都建立兩張表,在源端使用demo_ora_insert.sql插入資料。
host1
SQL> alter user scott identified by tiger account unlock;User altered.SQL> grant resource to scott; #ggsci 登入資料庫時需要該許可權Grant succeeded.SQL> grant select any dictionary to scott; # add trandata時需要該許可權Grant succeeded.SQL> conn scott/tigerConnected.SQL> @demo_ora_create.sqlSQL> @demo_ora_insert.sql
host2
SQL> alter user scott identified by tiger account unlock;User altered.SQL> grant resource to scott; #ggsci 登入資料庫時需要該許可權Grant succeeded.SQL> grant select any dictionary to scott; # add trandata時需要該許可權SQL> conn scott/tigerConnected.SQL> @demo_ora_create.sql
為需要同步的表,添加附加日誌
GGSCI (localhost.localdomain) 1> dblogin userid scott, password tigerSuccessfully logged into database.GGSCI (localhost.localdomain) 2> add trandata scott.tcustmerLogging of supplemental redo data enabled for table SCOTT.TCUSTMER.GGSCI (localhost.localdomain) 3> add trandata scott.tcustordLogging of supplemental redo data enabled for table SCOTT.TCUSTORD.
一、初始化載入資料
在源端配置一個初始化Extract,用來同步表中現有資料
GGSCI (localhost.localdomain) 7> ADD EXTRACT EINILOAD, SOURCEISTABLEEXTRACT added.
ADD EXTRACT命令用來添加一個EXTRACT, EINILOAD為Extract的group name 。SOURCEISTABLE表示資料來源為表。
查看Extract的資訊
GGSCI (localhost.localdomain) 9> INFO EXTRACT *, TASKSEXTRACT EINILOAD Initialized 2015-09-11 15:25 Status STOPPEDCheckpoint Lag Not AvailableLog Read Checkpoint Not Available First Record Record 0Task SOURCEISTABLE
配置初始化載入的捕獲參數
GGSCI (localhost.localdomain) 10> edit params EINILOAD---- GoldenGate Initial Data Capture-- for TCUSTMER and TCUSTORD--EXTRACT EINILOADUSERID system, PASSWORD "oracle"RMTHOST 192.168.199.104, MGRPORT 7809RMTTASK REPLICAT, GROUP RINILOADTABLE SCOTT.TCUSTMER;TABLE SCOTT.TCUSTORD;
在目標端,配置一個REPLICAT
GGSCI (localhost.localdomain) 2> ADD REPLICAT RINILOAD, SPECIALRUNREPLICAT added.
查看REPLICAT資訊
GGSCI (localhost.localdomain) 4> info replicat *, tasksREPLICAT RINILOAD Initialized 2015-08-22 14:18 Status STOPPEDCheckpoint Lag 00:00:00 (updated 00:02:50 ago)Log Read Checkpoint Not AvailableTask SPECIALRUN
配置Replicat參數
GGSCI (localhost.localdomain) 5> edit params riniload---- GoldenGate Initial Load Delivery--REPLICAT RINILOADASSUMETARGETDEFSUSERID system, PASSWORD "oracle"DISCARDFILE ./dirrpt/RINILOAD.dsc, PURGEMAP scott.*, TARGET scott.*;
啟動Extract
GGSCI (localhost.localdomain) 11> start extract einiloadSending START request to MANAGER ...EXTRACT EINILOAD starting
查看日誌
GGSCI (localhost.localdomain) 21> view report einiload
如果有報錯,尋找原因並解決
Processing table SCOTT.TCUSTMERProcessing 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: 0From Table SCOTT.TCUSTORD: # inserts: 2 # updates: 0 # deletes: 0 # discards: 0REDO Log Statistics Bytes parsed 0 Bytes output 574
日誌顯示,已成功同步資料。
到目的庫上驗證
SQL> select count(*) from tcustmer; COUNT(*)---------- 2SQL> select count(*) from tcustord; COUNT(*)---------- 2
二、配置資料即時同步
源端,配置一個即時Extract
GGSCI (localhost.localdomain) 22> ADD EXTRACT EORAKK, TRANLOG, BEGIN NOW, THREADS 1EXTRACT added.
編輯Extract的參數檔案
GGSCI (localhost.localdomain) 23> EDIT PARAMS EORAKK---- Change Capture parameter file to capture-- TCUSTMER and TCUSTORD Changes--EXTRACT EORAKKUSERID system, PASSWORD oracleRMTHOST 192.168.199.104, MGRPORT 7809RMTTRAIL ./dirdat/KKTABLE SCOTT.TCUSTMER;TABLE SCOTT.TCUSTORD;
為Extract添加遠端tail file,也就是說這個tail file是在目的端產生的。
GGSCI (localhost.localdomain) 24> ADD RMTTRAIL ./dirdat/KK, EXTRACT EORAKK, MEGABYTES 5RMTTRAIL added.
驗證結果
GGSCI (localhost.localdomain) 28> INFO RMTTRAIL * Extract Trail: ./dirdat/KK Extract: EORAKK Seqno: 0 RBA: 0 File Size: 5M
啟動Extract 進程
GGSCI (localhost.localdomain) 29> start extract eorakkSending START request to MANAGER ...EXTRACT EORAKK starting
驗證結果
GGSCI (localhost.localdomain) 30> INFO EXTRACT EORAKK, DETAILEXTRACT EORAKK Last Started 2015-09-11 17:07 Status RUNNINGCheckpoint 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 16:58Current directory /u01/app/oggReport file /u01/app/ogg/dirrpt/EORAKK.rptParameter file /u01/app/ogg/dirprm/eorakk.prmCheckpoint file /u01/app/ogg/dirchk/EORAKK.cpeProcess file /u01/app/ogg/dirpcs/EORAKK.pceStdout file /u01/app/ogg/dirout/EORAKK.outError log /u01/app/ogg/ggserr.log
GGSCI (localhost.localdomain) 31> VIEW REPORT EORAKK
GGSCI (localhost.localdomain) 32> INFO ALLProgram Status Group Lag at Chkpt Time Since ChkptMANAGER RUNNING EXTRACT RUNNING EORAKK 00:00:00 00:00:06
目標端,配置REPLICAT
安裝checkpoint表
配置checkpoint表的名稱
GGSCI (localhost.localdomain) 33> EDIT PARAMS ./GLOBALSHECKPOINTTABLE system.ggschkpt
產生checkpoint表
GGSCI (localhost.localdomain) 1> DBLOGIN USERID system, PASSWORD oracleSuccessfully logged into database.GGSCI (localhost.localdomain) 2> ADD CHECKPOINTTABLENo 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/KKREPLICAT added.
建立Replicat的參數檔案
GGSCI (localhost.localdomain) 4> EDIT PARAMS RORAKK---- Change Delivery parameter file to apply-- TCUSTMER and TCUSTORD Changes--REPLICAT RORAKKUSERID system, PASSWORD oracleHANDLECOLLISIONSASSUMETARGETDEFSDISCARDFILE ./dirrpt/RORAKK.DSC, PURGEMAP scott.tcustmer, TARGET scott.tcustmer;MAP scott.tcustord, TARGET scott.tcustord;
啟動Replicat
GGSCI (localhost.localdomain) 5> start replicat rorakkSending START request to MANAGER ...REPLICAT RORAKK starting
驗證結果
GGSCI (localhost.localdomain) 6> info replicat rorakkREPLICAT RORAKK Last Started 2015-08-22 15:49 Status RUNNINGCheckpoint Lag 00:00:00 (updated 00:00:08 ago)Log Read Checkpoint File ./dirdat/KK000000 First Record RBA 1050
驗證資料同步
在來源資料庫,執行如下指令碼,對兩個表進行insert、update、delete操作
[[email protected] ogg]$ sqlplus scott/tigerSQL*Plus: Release 11.2.0.1.0 Production on Fri Sep 11 17:58:17 2015Copyright (c) 1982, 2009, Oracle. All rights reserved.Connected to:Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit ProductionWith the Partitioning, OLAP, Data Mining and Real Application Testing optionsSQL> @/u01/app/ogg/demo_ora_misc.sql
查看源表中的資料
SQL> select count(*) from tcustmer; COUNT(*)---------- 5SQL> select count(*) from tcustord; COUNT(*)---------- 3
查看目的表的資料
SQL> select count(*) from tcustmer; COUNT(*)---------- 5SQL> select count(*) from tcustord; COUNT(*)---------- 3
資料已同步
本文出自 “叮咚” 部落格,請務必保留此出處http://lqding.blog.51cto.com/9123978/1695162
使用Goldengate 實現Oracle for Oracle 單向資料同步