goldengate單向複製的配置
本文介紹goldengate單向複製的配置，包括：
1．oracle環境下,複製lt_test schema下的兩張表test1和test2. 其中，表test1沒有建立主鍵，但列id邏輯上能夠唯一標識記錄. 表test2上建有主鍵;這裡只複製DML操作,不包括DDL.
2．配置heartbeat表, 用於監控複製延遲;
3．註冊Extract程式,用於利用stream程式來實現過期歸檔日誌的清理.
說明: 本文測試環境為oracle 10.2.0.5, Goldengate安裝目錄為/oracle/goldengate/ggs
以下為具體步驟：
1.在source和target資料上建立Goldengate管理使用者並授權
create user ggs_owner identified by *** default tablespace users temporary tablespace temp;
grant connect,resource,dba to ggs_owner;
grant select any dictionary, select any table to ggs_owner;
grant create table to ggs_owner;
grant ALTER ANY TABLE TO ggs_owner;
grant flashback any table to ggs_owner;
grant execute on dbms_flashback to ggs_owner;
grant execute on utl_file to ggs_owner;
2.在source資料庫上開啟supplemental logging
a> enable minimal supplemental logging on source DB at the database level:
alter database add supplemental log data;
b> enable supplemental logging at table level:
cd /oracle/goldengate/ggs
GGSCI>dblogin userid ggs_owner, password ***
GGSCI>add trandata LT_TEST.TEST1
GGSCI>add trandata LT_TEST.TEST2
3. 在source資料庫上ggs_owner使用者下建立heartbeat表
CREATE TABLE GGS_OWNER.HEARTBEAT
(
ID NUMBER ,
SRC_DB VARCHAR2(30),
EXTRACT_NAME varchar2(8),
SOURCE_COMMIT TIMESTAMP,
TARGET_COMMIT TIMESTAMP,
CAPTIME TIMESTAMP,
CAPLAG NUMBER,
PMPTIME TIMESTAMP,
PMPGROUP VARCHAR2(8 BYTE),
PMPLAG NUMBER,
DELTIME TIMESTAMP,
DELGROUP VARCHAR2(8 BYTE),
DELLAG NUMBER,
TOTALLAG NUMBER,
thread number,
update_timestamp timestamp,
EDMLDELTASTATS number,
RDMLDELTASTATS number,
CONSTRAINT HEARTBEAT_PK PRIMARY KEY (SRC_DB) ENABLE
);
INSERT INTO GGS_OWNER.HEARTBEAT (SRC_DB) select db_unique_name from V$database;
commit;
4. 在TARGET資料庫上ggs_owner使用者下建立heartbeat表及相關資料物件
CREATE SEQUENCE GGS_OWNER.SEQ_GGS_HEARTBEAT_ID INCREMENT BY 1 START WITH 1 ORDER ;5. 在source資料庫上ggs_owner使用者下建立heartbeat job
CREATE TABLE GGS_OWNER.GGS_HEARTBEAT
(
ID NUMBER ,
SRC_DB VARCHAR2(30),
EXTRACT_NAME varchar2(8),
SOURCE_COMMIT TIMESTAMP,
TARGET_COMMIT TIMESTAMP,
CAPTIME TIMESTAMP,
CAPLAG NUMBER,
PMPTIME TIMESTAMP,
PMPGROUP VARCHAR2(8 BYTE),
PMPLAG NUMBER,
DELTIME TIMESTAMP,
DELGROUP VARCHAR2(8 BYTE),
DELLAG NUMBER,
TOTALLAG NUMBER,
thread number,
update_timestamp timestamp,
EDMLDELTASTATS number,
RDMLDELTASTATS number,
CONSTRAINT GGS_HEARTBEAT_PK PRIMARY KEY (DELGROUP) ENABLE
);
CREATE OR REPLACE TRIGGER GGS_OWNER.GGS_HEARTBEAT_TRIG
BEFORE INSERT OR UPDATE ON GGS_OWNER.GGS_HEARTBEAT
FOR EACH ROW
BEGIN
select seq_ggs_HEARTBEAT_id.nextval
into :NEW.ID
from dual;
select systimestamp
into :NEW.target_COMMIT
from dual;
select trunc(to_number(substr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT ),1, instr(:NEW.CAPTIME - :NEW.SOURCE_COMMIT,' ')))) * 86400
+ to_number(substr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT), instr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT),' ')+1,2)) * 3600
+ to_number(substr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT), instr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT),' ')+4,2) ) * 60
+ to_number(substr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT), instr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT),' ')+7,2))
+ to_number(substr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT), instr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT),' ')+10,6)) / 1000000
into :NEW.CAPLAG
from dual;
select trunc(to_number(substr((:NEW.PMPTIME - :NEW.CAPTIME),1, instr(:NEW.PMPTIME - :NEW.CAPTIME,' ')))) * 86400
+ to_number(substr((:NEW.PMPTIME - :NEW.CAPTIME), instr((:NEW.PMPTIME - :NEW.CAPTIME),' ')+1,2)) * 3600
+ to_number(substr((:NEW.PMPTIME - :NEW.CAPTIME), instr((:NEW.PMPTIME - :NEW.CAPTIME),' ')+4,2) ) * 60
+ to_number(substr((:NEW.PMPTIME - :NEW.CAPTIME), instr((:NEW.PMPTIME - :NEW.CAPTIME),' ')+7,2))
+ to_number(substr((:NEW.PMPTIME - :NEW.CAPTIME), instr((:NEW.PMPTIME - :NEW.CAPTIME),' ')+10,6)) / 1000000
into :NEW.PMPLAG
from dual;
select trunc(to_number(substr((:NEW.DELTIME - :NEW.PMPTIME),1, instr(:NEW.DELTIME - :NEW.PMPTIME,' ')))) * 86400
+ to_number(substr((:NEW.DELTIME - :NEW.PMPTIME), instr((:NEW.DELTIME - :NEW.PMPTIME),' ')+1,2)) * 3600
+ to_number(substr((:NEW.DELTIME - :NEW.PMPTIME), instr((:NEW.DELTIME - :NEW.PMPTIME),' ')+4,2) ) * 60
+ to_number(substr((:NEW.DELTIME - :NEW.PMPTIME), instr((:NEW.DELTIME - :NEW.PMPTIME),' ')+7,2))
+ to_number(substr((:NEW.DELTIME - :NEW.PMPTIME), instr((:NEW.DELTIME - :NEW.PMPTIME),' ')+10,6)) / 1000000
into :NEW.DELLAG
from dual;
select trunc(to_number(substr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT),1, instr(:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT,' ')))) * 86400
+ to_number(substr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT), instr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT),' ')+1,2)) * 3600
+ to_number(substr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT), instr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT),' ')+4,2) ) * 60
+ to_number(substr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT), instr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT),' ')+7,2))
+ to_number(substr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT), instr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT),' ')+10,6)) / 1000000
into :NEW.TOTALLAG
from dual;
end ;
/
ALTER TRIGGER GGS_OWNER.GGS_HEARTBEAT_TRIG ENABLE;
CREATE SEQUENCE GGS_OWNER.SEQ_GGS_HEARTBEAT_HIST INCREMENT BY 1 START WITH 1 ORDER ;
CREATE TABLE GGS_OWNER.GGS_HEARTBEAT_HISTORY
(
ID NUMBER ,
SRC_DB VARCHAR2(30),
EXTRACT_NAME varchar2(8),
SOURCE_COMMIT TIMESTAMP,
TARGET_COMMIT TIMESTAMP,
CAPTIME TIMESTAMP,
CAPLAG NUMBER,
PMPTIME TIMESTAMP,
PMPGROUP VARCHAR2(8 BYTE),
PMPLAG NUMBER,
DELTIME TIMESTAMP,
DELGROUP VARCHAR2(8 BYTE),
DELLAG NUMBER,
TOTALLAG NUMBER,
thread number,
update_timestamp timestamp,
EDMLDELTASTATS number,
RDMLDELTASTATS number
);
CREATE OR REPLACE TRIGGER GGS_OWNER.GGS_HEARTBEAT_TRIG_HIST
BEFORE INSERT OR UPDATE ON GGS_OWNER.GGS_HEARTBEAT_HISTORY
FOR EACH ROW
BEGIN
select seq_ggs_HEARTBEAT_HIST.nextval
into :NEW.ID
from dual;
select systimestamp
into :NEW.target_COMMIT
from dual;
select trunc(to_number(substr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT ),1, instr(:NEW.CAPTIME - :NEW.SOURCE_COMMIT,' ')))) * 86400
+ to_number(substr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT), instr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT),' ')+1,2)) * 3600
+ to_number(substr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT), instr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT),' ')+4,2) ) * 60
+ to_number(substr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT), instr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT),' ')+7,2))
+ to_number(substr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT), instr((:NEW.CAPTIME - :NEW.SOURCE_COMMIT),' ')+10,6)) / 1000000
into :NEW.CAPLAG
from dual;
select trunc(to_number(substr((:NEW.PMPTIME - :NEW.CAPTIME),1, instr(:NEW.PMPTIME - :NEW.CAPTIME,' ')))) * 86400
+ to_number(substr((:NEW.PMPTIME - :NEW.CAPTIME), instr((:NEW.PMPTIME - :NEW.CAPTIME),' ')+1,2)) * 3600
+ to_number(substr((:NEW.PMPTIME - :NEW.CAPTIME), instr((:NEW.PMPTIME - :NEW.CAPTIME),' ')+4,2) ) * 60
+ to_number(substr((:NEW.PMPTIME - :NEW.CAPTIME), instr((:NEW.PMPTIME - :NEW.CAPTIME),' ')+7,2))
+ to_number(substr((:NEW.PMPTIME - :NEW.CAPTIME), instr((:NEW.PMPTIME - :NEW.CAPTIME),' ')+10,6)) / 1000000
into :NEW.PMPLAG
from dual;
select trunc(to_number(substr((:NEW.DELTIME - :NEW.PMPTIME),1, instr(:NEW.DELTIME - :NEW.PMPTIME,' ')))) * 86400
+ to_number(substr((:NEW.DELTIME - :NEW.PMPTIME), instr((:NEW.DELTIME - :NEW.PMPTIME),' ')+1,2)) * 3600
+ to_number(substr((:NEW.DELTIME - :NEW.PMPTIME), instr((:NEW.DELTIME - :NEW.PMPTIME),' ')+4,2) ) * 60
+ to_number(substr((:NEW.DELTIME - :NEW.PMPTIME), instr((:NEW.DELTIME - :NEW.PMPTIME),' ')+7,2))
+ to_number(substr((:NEW.DELTIME - :NEW.PMPTIME), instr((:NEW.DELTIME - :NEW.PMPTIME),' ')+10,6)) / 1000000
into :NEW.DELLAG
from dual;
select trunc(to_number(substr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT),1, instr(:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT,' ')))) * 86400
+ to_number(substr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT), instr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT),' ')+1,2)) * 3600
+ to_number(substr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT), instr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT),' ')+4,2) ) * 60
+ to_number(substr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT), instr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT),' ')+7,2))
+ to_number(substr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT), instr((:NEW.TARGET_COMMIT - :NEW.SOURCE_COMMIT),' ')+10,6)) / 1000000
into :NEW.TOTALLAG
from dual;
end ;
/ALTER TRIGGER GGS_OWNER.GGS_HEARTBEAT_TRIG_HIST ENABLE;
grant select on v_$instance to ggs_owner;
grant select on v_$database to ggs_owner;
CREATE OR REPLACE PROCEDURE ggs_owner.gg_update_hb_tab IS
v_thread_num NUMBER;
v_db_unique_name VARCHAR2 (128);
BEGIN
SELECT db_unique_name
INTO v_db_unique_name
FROM v$database;
UPDATE ggs_owner.heartbeat
SET update_timestamp = SYSTIMESTAMP
,src_db = v_db_unique_name;
COMMIT;
END;
/
BEGIN
SYS.DBMS_SCHEDULER.CREATE_JOB (
job_name => 'ggs_owner.OGG_HB',
job_type => 'STORED_PROCEDURE',
job_action => 'ggs_owner.GG_UPDATE_HB_TAB',
number_of_arguments => 0,
start_date => NULL,
repeat_interval => 'FREQ=MINUTELY',
end_date => NULL,
job_class => '"SYS"."DEFAULT_JOB_CLASS"',
enabled => FALSE,
auto_drop => FALSE,
comments => 'GoldenGate');
SYS.DBMS_SCHEDULER.SET_ATTRIBUTE(
name => 'ggs_owner.OGG_HB',
attribute => 'restartable', value => TRUE);
SYS.DBMS_SCHEDULER.SET_ATTRIBUTE(
name => 'ggs_owner.OGG_HB',
attribute => 'logging_level', value => DBMS_SCHEDULER.LOGGING_OFF);
SYS.DBMS_SCHEDULER.enable(
name => 'ggs_owner.OGG_HB');
END;
/
6. 在source資料庫上為ggs_owner使用者授予stream相關許可權
exec dbms_streams_auth.grant_admin_privilege('GGS_OWNER')
grant insert on system.logmnr_restart_ckpt$ to GGS_OWNER;
grant update on sys.streams$_capture_process to GGS_OWNER;
grant become user to GGS_OWNER;
7. 在source端配置manager程式
配置manager程式引數
cd /oracle/goldengate/ggs
GGSCI>edit params mgr
PORT 7809
USERID ggs_owner, PASSWORD ggs_owner
PURGEOLDEXTRACTS /oracle/goldengate/ggs/dirdat/*,usecheckpoints, minkeepdays 3
AUTOSTART EXTRACT *
8. 在source端配置extract程式
cd /oracle/goldengate/ggs
GGSCI>edit params ext01
SETENV (NLS_LANG = AMERICAN_AMERICA.UTF8)
USERID ggs_owner, PASSWORD ***
TRANLOGOPTIONS, BUFSIZE 4096000
EXTTRAIL /oracle/goldengate/ggs/dirdat/e1
include dirprm/HB_Ext.inc
TABLE LT_TEST.TEST1, KEYCOLS(id);
TABLE LT_TEST.TEST2;
GGSCI>ADD EXTRACT E_DSE01, TRANLOG, BEGIN NOW
GGSCI>ADD EXTTRAIL /oraarch/CNR/ggs/dirdat/e1,EXTRACT E_DSE01,MEGABYTES 100
GGSCI>DBLOGIN USERID GGS_OWNER, PASSWORD GGS_OWNER
GGSCI>REGISTER EXTRACT E_DSE01 LOGRETENTION
Heartbeat配置檔案HB_Ext.inc內容如下：
TABLE GGS_OWNER.HEARTBEAT,
TOKENS (
CAPGROUP = @GETENV ("GGENVIRONMENT", "GROUPNAME"),
CAPTIME = @DATE ("YYYY-MM-DD HH:MI:SS.FFFFFF","JTS",@GETENV ("JULIANTIMESTAMP")),
EDMLDELTASTATS = @GETENV ("DELTASTATS", "DML")
);
9.在source資料庫伺服器上配置data pump程式
cd /oracle/goldengate/ggs
GGSCI>edit params p_dse01
USERID GGS_OWNER,PASSWORD ***
RMTHOST <ip>, MGRPORT 7809
RMTTRAIL /oracle/goldengate/ggs/dirdat/r1
include dirprm/HB_Pmp.inc
TABLE LT_TEST.TEST1, KEYCOLS(id);
TABLE LT_TEST.TEST2;
GGSCI> ADD EXTRACT P_DSE01, EXTTRAILSOURCE /oracle/goldengate/ggs/dirdat/e1
GGSCI> ADD RMTTRAIL /oracle/goldengate/ggs/dirdat/r1, EXTRACT P_DSE01,MEGABYTES 100
Heartbeat配置檔案HB_Pmp.inc內容如下：
table GGS_OWNER.HEARTBEAT,
TOKENS (
PMPGROUP = @GETENV ("GGENVIRONMENT","GROUPNAME"),
PMPTIME = @DATE ("YYYY-MM-DD HH:MI:SS.FFFFFF","JTS",@GETENV ("JULIANTIMESTAMP"))
);
10.在target資料庫上建立checkpoint table
cd /oracle/goldengate/ggs
GGSCI>DBLOGIN USERID ggs_owner, PASSWORD ***
GGSCI>ADD CHECKPOINTTABLE GGS_OWNER.CHKPTAB
11. 在target server上編輯GLOBALS引數檔案
vi /oracle/goldengate/ggs/GLOBALS
--add below entry
CHECKPOINTTABLE GGS_OWNER.CHKPTAB
12. 在target端配置manager程式
配置manager程式引數
cd /oracle/goldengate/ggs
GGSCI>edit params mgr
PORT 7809
USERID ggs_owner, PASSWORD ***
PURGEOLDEXTRACTS /oracle/goldengate/ggs/dirdat/*,usecheckpoints, minkeepdays 3
AUTOSTART REPLICAT *
13. 配置replicate程式
cd /oracle/goldengate/ggs
GGSCI>edit params r_dse01
SETENV (NLS_LANG = AMERICAN_AMERICA.UTF8)
USERID ggs_owner, PASSWORD ***
Assumetargetdefs
DISCARDFILE /oracle/goldengate/ggs/dirrpt/record01.dsc,APPEND,MEGABYTES 50
DiscardRollover at 00:00 ON SUNDAY
BATCHSQL
include ./dirprm/HB_Rep.inc
REPERROR (DEFAULT, DISCARD)
MAP LT_TEST.TEST1,TARGET LT_TEST.TEST1, KEYCOLS(id);
MAP LT_TEST.TEST2,TARGET LT_TEST.TEST2;
GGSCI> ADD REPLICAT R_DSE01,EXTTRAIL /oracle/goldengate/ggs/dirdat/r1
Heartbeat配置檔案HB_Rep.inc內容如下：
MAP GGS_OWNER.HEARTBEAT, TARGET GGS_OWNER.GGS_HEARTBEAT_HISTORY,
KEYCOLS (ID),
INSERTALLRECORDS,
COLMAP (USEDEFAULTS,
ID = 0,
SOURCE_COMMIT = @GETENV ("GGHEADER", "COMMITTIMESTAMP"),
EXTRACT_NAME = @TOKEN ("CAPGROUP"),
CAPTIME = @TOKEN ("CAPTIME"),
PMPGROUP = @TOKEN ("PMPGROUP"),
PMPTIME = @TOKEN ("PMPTIME"),
DELGROUP = @GETENV ("GGENVIRONMENT", "GROUPNAME"),
DELTIME = @DATE ("YYYY-MM-DD HH:MI:SS.FFFFFF","JTS",@GETENV ("JULIANTIMESTAMP")),
EDMLDELTASTATS = @TOKEN ("EDMLDELTASTATS"),
RDMLDELTASTATS = @GETENV ("DELTASTATS", "DML")
);
MAP GGS_OWNER.HEARTBEAT, TARGET GGS_OWNER.GGS_HEARTBEAT,
KEYCOLS (DELGROUP),
INSERTMISSINGUPDATES,
COLMAP (USEDEFAULTS,
ID = 0,
SOURCE_COMMIT = @GETENV ("GGHEADER", "COMMITTIMESTAMP"),
EXTRACT_NAME = @TOKEN ("CAPGROUP"),
CAPTIME = @TOKEN ("CAPTIME"),
PMPGROUP = @TOKEN ("PMPGROUP"),
PMPTIME = @TOKEN ("PMPTIME"),
DELGROUP = @GETENV ("GGENVIRONMENT", "GROUPNAME"),
DELTIME = @DATE ("YYYY-MM-DD HH:MI:SS.FFFFFF","JTS",@GETENV ("JULIANTIMESTAMP")),
EDMLDELTASTATS = @TOKEN ("EDMLDELTASTATS"),
RDMLDELTASTATS = @GETENV ("DELTASTATS", "DML")
);
14. 在target端啟動manager程式
cd /oracle/goldengate/ggs
GGSCI>start mgr
15. 在source端啟動manager程式
cd /oracle/goldengate/ggs
GGSCI>start mgr
關於以上配置的說明：
1.這裡使用了heartbeat表來監控複製延遲及訊息量,關於heartbeat的更詳細資訊,參考metalink文件1299679.1;
2.文中使用了register extract操作,該操作會建立一個underlying stream程式,之後goldengate可利用stream的checkpoint機制來更新extract程式所需要的最小SCN值,記錄在dba_capture檢視的REQUIRED_CHECKPOINT_SCN列.該SCN值之前的oracle日誌就不再被goldengate所需要，可以安全地刪除；
3.文中所使用引數的具體含義，可參考goldengate文件，我也會在另一篇文章中作詳細解釋。
來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/15797451/viewspace-2073581/，如需轉載，請註明出處，否則將追究法律責任。
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