oracle技术之oracle数据泵不同工作方式性能比较(三)

根据Oracle的文档的描述,数据泵采用不同的方式导出导入,性能也会有明显的差别,这次正好有机会测试一下,迁移表空间、直接路径、外部表方式,以及数据库链方式导出、导入的性能差异。


这篇测试直接路径导出、导入方式。






首先清除上一篇文章中导入的用户和表空间,并重新建立测试用户和表空间。


SQL> DROP USER TJSQ_NDMAIN CASCADE;


User dropped.


SQL> DROP USER TJSQ_TRADE CASCADE;


User dropped.


SQL> DROP USER TJSQ_GOV CASCADE;


User dropped.


SQL> DROP USER TJSQ_NDMAIN_OPER CASCADE;


User dropped.


SQL> DROP USER TJSQ_TRADE_OPER CASCADE;


User dropped.


SQL> DROP TABLESPACE TJSQ INCLUDING CONTENTS AND DATAFILES;


Tablespace dropped.


SQL> DROP TABLESPACE TJSQ_TMP INCLUDING CONTENTS AND DATAFILES;


Tablespace dropped.


下面重新创建用户,并设置权限:


SQL> CREATE USER TJSQ_NDMAIN IDENTIFIED BY TJSQ_NDMAIN;


User created.


SQL> CREATE USER TJSQ_TRADE IDENTIFIED BY TJSQ_TRADE;


User created.


SQL> CREATE USER TJSQ_GOV IDENTIFIED BY TJSQ_GOV;


User created.


SQL> CREATE USER TJSQ_NDMAIN_OPER IDENTIFIED BY TJSQ_NDMAIN_OPER;


User created.


SQL> CREATE USER TJSQ_TRADE_OPER IDENTIFIED BY TJSQ_TRADE_OPER;


User created.


SQL> GRANT CONNECT TO TJSQ_GOV;


Grant succeeded.


SQL> GRANT RESOURCE TO TJSQ_GOV;


Grant succeeded.


SQL> GRANT CONNECT TO TJSQ_NDMAIN;


Grant succeeded.


SQL> GRANT RESOURCE TO TJSQ_NDMAIN;


Grant succeeded.


SQL> GRANT CONNECT TO TJSQ_NDMAIN_OPER;


Grant succeeded.


SQL> GRANT RESOURCE TO TJSQ_NDMAIN_OPER;


Grant succeeded.


SQL> GRANT CONNECT TO TJSQ_TRADE;


Grant succeeded.


SQL> GRANT RESOURCE TO TJSQ_TRADE;


Grant succeeded.


SQL> GRANT CONNECT TO TJSQ_TRADE_OPER;


Grant succeeded.


SQL> GRANT RESOURCE TO TJSQ_TRADE_OPER;


Grant succeeded.


SQL> GRANT CREATE SYNONYM TO TJSQ_GOV;


Grant succeeded.


SQL> GRANT CREATE SYNONYM TO TJSQ_NDMAIN;


Grant succeeded.


SQL> GRANT CREATE SYNONYM TO TJSQ_NDMAIN_OPER;


Grant succeeded.


SQL> GRANT CREATE DATABASE LINK TO TJSQ_TRADE;


Grant succeeded.


SQL> GRANT CREATE SYNONYM TO TJSQ_TRADE;


Grant succeeded.


SQL> GRANT CREATE SYNONYM TO TJSQ_TRADE_OPER;


Grant succeeded.


表空间的建立以及数据文件初始化的时间需要单独计时:


SQL> SET TIMING ON


SQL> CREATE TABLESPACE TJSQ DATAFILE '/data/oracle/oradata/tjsq/tjsq01.dbf' size20g,


 2  '/data/oracle/oradata/tjsq/tjsq02.dbf' size4g;


Tablespace created.


Elapsed: 00:02:07.68


SQL> CREATE TABLESPACE TJSQ_TMP DATAFILE '/data/oracle/oradata/tjsq/tjsq_tmp.dbf' size4g;


Tablespace created.


Elapsed: 00:00:22.19


这个步骤总用时2分30秒。


由于Oracle数据泵的默认导出、导入都是直接路径方式,因此当前的测试不需要进行额外的设置。


下面利用数据泵的导出操作:


[oracle@yans2 dmp]$ expdp system directory=d_dmpdp dumpfile=tjsq_090617.dp schemas=tjsq_trade,tjsq_ndmain,tjsq_gov,tjsq_ndmain_oper,tjsq_trade_oper


Export: Release10.2.0.3.0 - 64bit Production on Wednesday, 17 June, 2009 14:29:04


Copyright (c) 2003, 2005, Oracle.  All rights reserved.


Password:


Connected to: Oracle Database10gEnterprise Edition Release10.2.0.3.0 - 64bit Production


With the Partitioning, OLAP and Data Mining options


Starting "SYSTEM"."SYS_EXPORT_SCHEMA_01":  system/******** directory=d_dmpdp dumpfile=tjsq_090617.dp schemas=tjsq_trade,tjsq_ndmain,tjsq_gov,tjsq_ndmain_oper,tjsq_trade_oper


Estimate in progress using BLOCKS method...


Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA


Total estimation using BLOCKS method: 9.203 GB


Processing object type SCHEMA_EXPORT/USER


Processing object type SCHEMA_EXPORT/SYSTEM_GRANT


Processing object type SCHEMA_EXPORT/ROLE_GRANT


Processing object type SCHEMA_EXPORT/DEFAULT_ROLE


Processing object type SCHEMA_EXPORT/TABLESPACE_QUOTA


Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA


Processing object type SCHEMA_EXPORT/SYNONYM/SYNONYM


Processing object type SCHEMA_EXPORT/SEQUENCE/SEQUENCE


Processing object type SCHEMA_EXPORT/SEQUENCE/GRANT/OWNER_GRANT/OBJECT_GRANT


Processing object type SCHEMA_EXPORT/TABLE/TABLE


Processing object type SCHEMA_EXPORT/TABLE/GRANT/OWNER_GRANT/OBJECT_GRANT


Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX


Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/CONSTRAINT


Processing object type SCHEMA_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS


Processing object type SCHEMA_EXPORT/TABLE/COMMENT


Processing object type SCHEMA_EXPORT/PACKAGE/PACKAGE_SPEC


Processing object type SCHEMA_EXPORT/FUNCTION/FUNCTION


Processing object type SCHEMA_EXPORT/PROCEDURE/PROCEDURE


Processing object type SCHEMA_EXPORT/PACKAGE/COMPILE_PACKAGE/PACKAGE_SPEC/ALTER_PACKAGE_SPEC


Processing object type SCHEMA_EXPORT/FUNCTION/ALTER_FUNCTION


Processing object type SCHEMA_EXPORT/PROCEDURE/ALTER_PROCEDURE


Processing object type SCHEMA_EXPORT/PACKAGE/PACKAGE_BODY


Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/REF_CONSTRAINT


Processing object type SCHEMA_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS


Processing object type SCHEMA_EXPORT/TABLE/POST_TABLE_ACTION


Processing object type SCHEMA_EXPORT/TABLE/MATERIALIZED_VIEW_LOG


. . exported "TJSQ_TRADE"."ORD_HIT_COMM"                 1.180 GB 1508527 rows


. . exported "TJSQ_TRADE"."CON_ITEM_SEND_IND"            829.2 MB 6212238 rows


. . exported "TJSQ_NDMAIN"."PLT_ORG_PLAT"                77.81 KB    1201 rows


.


.


.


. . exported "TJSQ_TRADE_OPER"."WYP_DISABLE_DUP"             0 KB       0 rows


. . exported "TJSQ_TRADE_OPER"."WYP_DISABLE_HEPING14"        0 KB       0 rows


Master table "SYSTEM"."SYS_EXPORT_SCHEMA_01" successfully loaded/unloaded


******************************************************************************


Dump file set for SYSTEM.SYS_EXPORT_SCHEMA_01 is:


 /data/dmp/tjsq_090617.dp


Job "SYSTEM"."SYS_EXPORT_SCHEMA_01" successfully completed at 14:33:53


导出操作一共执行了4分49秒。


下面利用DBMS_FILE_TRANSFER包,将数据泵的导出文件传送到本地:


SQL> SET TIMING ON


SQL> EXEC DBMS_FILE_TRANSFER.GET_FILE('D_DMPDP', 'tjsq_090617.dp', 'NEWDEMO', 'D_DMP', 'tjsq_090617.dp')


PL/SQL procedure successfully completed.


Elapsed: 00:10:22.92


数据泵导出文件传送到远端花费了10分23秒。


最后利用数据库执行导入操作:


[oracle@tj dmp]$ impdp system dumpfile=tjsq_090617.dp directory=d_dmp logfile=tjsq_imp_direct.log


Import: Release10.2.0.3.0 - 64bit Production on星期四, 18 6月, 2009 14:22:51


Copyright (c) 2003, 2005, Oracle.  All rights reserved.


Password:


Connected to: Oracle Database10gEnterprise Edition Release10.2.0.3.0 - 64bit Production


With the Partitioning, OLAP and Data Mining options


Master table "SYSTEM"."SYS_IMPORT_FULL_01" successfully loaded/unloaded


Starting "SYSTEM"."SYS_IMPORT_FULL_01":  system/******** dumpfile=tjsq_090617.dp directory=d_dmp logfile=tjsq_imp_direct.log


Processing object type SCHEMA_EXPORT/USER


ORA-31684: Object type USER:"TJSQ_TRADE_OPER" already exists


ORA-31684: Object type USER:"TJSQ_NDMAIN_OPER" already exists


ORA-31684: Object type USER:"TJSQ_GOV" already exists


ORA-31684: Object type USER:"TJSQ_NDMAIN" already exists


ORA-31684: Object type USER:"TJSQ_TRADE" already exists


Processing object type SCHEMA_EXPORT/SYSTEM_GRANT


Processing object type SCHEMA_EXPORT/ROLE_GRANT


Processing object type SCHEMA_EXPORT/DEFAULT_ROLE


Processing object type SCHEMA_EXPORT/TABLESPACE_QUOTA


Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA


Processing object type SCHEMA_EXPORT/SYNONYM/SYNONYM


Processing object type SCHEMA_EXPORT/SEQUENCE/SEQUENCE


Processing object type SCHEMA_EXPORT/SEQUENCE/GRANT/OWNER_GRANT/OBJECT_GRANT


Processing object type SCHEMA_EXPORT/TABLE/TABLE


Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA


. . imported "TJSQ_TRADE"."ORD_HIT_COMM"                 1.180 GB 1508527 rows


. . imported "TJSQ_TRADE"."CON_ITEM_SEND_IND"            829.2 MB 6212238 rows


. . imported "TJSQ_NDMAIN"."PLT_ORG_PLAT"                77.81 KB    1201 rows


. . imported "TJSQ_NDMAIN_OPER"."PLT_ORG_PLAT_090324"    508.3 MB 7202314 rows


.


.


.


. . imported "TJSQ_TRADE_OPER"."WYP_DISABLE_DUP"             0 KB       0 rows


. . imported "TJSQ_TRADE_OPER"."WYP_DISABLE_HEPING14"        0 KB       0 rows


Processing object type SCHEMA_EXPORT/TABLE/GRANT/OWNER_GRANT/OBJECT_GRANT


Processing object type SCHEMA_EXPORT/TABLE/INDEX/INDEX


Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/CONSTRAINT


Processing object type SCHEMA_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS


Processing object type SCHEMA_EXPORT/TABLE/COMMENT


Processing object type SCHEMA_EXPORT/PACKAGE/PACKAGE_SPEC


Processing object type SCHEMA_EXPORT/FUNCTION/FUNCTION


Processing object type SCHEMA_EXPORT/PROCEDURE/PROCEDURE


Processing object type SCHEMA_EXPORT/PACKAGE/COMPILE_PACKAGE/PACKAGE_SPEC/ALTER_PACKAGE_SPEC


Processing object type SCHEMA_EXPORT/FUNCTION/ALTER_FUNCTION


Processing object type SCHEMA_EXPORT/PROCEDURE/ALTER_PROCEDURE


Processing object type SCHEMA_EXPORT/PACKAGE/PACKAGE_BODY


Processing object type SCHEMA_EXPORT/TABLE/CONSTRAINT/REF_CONSTRAINT


Processing object type SCHEMA_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS


Processing object type SCHEMA_EXPORT/TABLE/POST_TABLE_ACTION


Processing object type SCHEMA_EXPORT/TABLE/MATERIALIZED_VIEW_LOG


Job "SYSTEM"."SYS_IMPORT_FULL_01" successfully completed at 14:37:17


导入总共耗时14分26秒。


下面还是更新记录表:


SQL> INSERT INTO T_EXPDP_IMPDP_RECORD VALUES


 2  ('DIRECT', 4*60+49, 10*60+23, 14*60+26, 150, 4*60+49+10*60+23+14*60+26+150);


1 row created.


SQL> COMMIT;


Commit complete.


SQL> SELECT * FROM T_EXPDP_IMPDP_RECORD


 2  WHERE TYPE = 'DIRECT';


TYPE                 EXPDP_TIME TRANS_TIME IMPDP_TIME OTHER_TIME TOTAL_TIME


-------------------- ---------- ---------- ---------- ---------- ----------


DIRECT                      289        623        866        150       1928


SQL> SELECT ROUND(EXPDP_TIME/TOTAL_TIME*100, 2) EXPDP_RATE,


 2  ROUND(TRANS_TIME/TOTAL_TIME*100, 2) TRANS_RATE,


 3  ROUND(IMPDP_TIME/TOTAL_TIME*100, 2) IMPDP_RATE,


 4  ROUND(OTHER_TIME/TOTAL_TIME*100, 2) OTHER_RATE


 5  FROM T_EXPDP_IMPDP_RECORD


 6  WHERE TYPE = 'DIRECT';


EXPDP_RATE TRANS_RATE IMPDP_RATE OTHER_RATE


---------- ---------- ---------- ----------


    14.99      32.31      44.92       7.78


可以看到,对于当前的环境直接路径导入方式速度更快,只需要32分8秒,就完成了全部的导入工作。


其中导入部分无疑是最耗时的,占了整个比重的45%,导出占了15%,而网络传播占了32%的时间。



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