Oracle GoldenGate 三、加密
写在开始前
从上周开始,我花了大量的业余时间阅读GoldenGate官方文档,并根据文档实践和进一步学习了解GoldenGate,以下便是根据官方文档理解总结的GoldenGate学习内容:
Oracle GoldenGate 一、介绍和安装
Oracle GoldenGate 二、配置和使用
在[美] 莫提默·J.艾德勒,[美] 查尔斯·范多伦著的【How to Read a Book】一书中,作者强调如果你每天所学的知识你不能用你自己的语言去描述或记忆它,那说明你未真正学习和了解所学的知识,So 那以后我改变了我的学习方式,把生搬硬套的学习方式改变为用自己的语言、用自己的了解去描述和记忆知识,描述难免有错,请谅解,也请指导,谢谢!
1 加密的使用场景
- GoldenGate参数文件
在每个Extract进程和Replicat进程的USERID、TRANLOGOPTIONS、DDLOPTIONS、DBOPTIONS参数中都要指定密码,密码是比较敏感又比较重要的信息,因为GoldenGate用户具有比较多的数据库权限,所以有效的保护密码是GoldenGate关于安全的首要之一。 - trail文件
主抽取进程(Primary Extract)从数据库中抽取变更信息并加密写入到trail文件,然后再由Data Pump(Secondly Extract)进程解密实现复杂操作,加密成最终trail文件通过网络发送到目标端,目标端GoldenGate后台collector进程将trail文件保存到目标端trail文件,replicat进程读取文件内容并将其解密、重构、应用到目标库。 - GGSCI命令行
使用DBLOGIN登录数据库时提供的密码。
2 GoldenGate提供的加密算法
- AES128
使用AES 128加密,具有128位的密钥大小 - AES192
使用AES 192加密,具有192位的密钥大小 - AES256
使用AES 256加密,具有256位的密钥大小 - BLOWFISH
使用64位块大小和从32位到128位的可变长度密钥的Blowfish加密,建议只在GoldenGate较早版本中使用,仅在ENCRYPTKEY为DEFAULT时可使用此种加密方式。
3 产生密钥
必须先产生密钥并且保存在ENCKEYS LookUp文件中然后才能使用以下功能
- 使用ENCRYPT PASSWORD PWD ENCRYPTKEY 生成加密密码
- 在配置文件参数ENCRYPTTRAIL KEYNAME 中指定trail文件加密方式和密钥名
- 在配置文件参数RMHOST或RMTHOSTOPTIONS ENCRYPT 中指定加密方式和密钥名
产生密钥
切换到GoldenGate home 目录,使用KEYGEN工具产生密钥;语法:
./keygen <key length> <n>
key length 表示加密密钥的长度;
n 表示产生多少个key;
[oracle@sywu ogg_src]$ ./keygen 128 2
0xDEE44B0133536B0DA1B858620E4A240D
0x71DF8D01C352097FC76BBA31232DA95A
每一次产生的key都是不一样的,产生key后为每一个key定义一个名称(keyName)复制保存到GoldenGate home根目录的ENCKEYS文件内。ENCKEYS文件是一个lookup file。
保存key到ENCKEYS文件
[oracle@sywu ogg_src]$ vim ENCKEYS
#GoldenGate encryption key
#keyName key
securekey1 0xDEE44B0133536B0DA1B858620E4A240D
securekey2 0x71DF8D01C352097FC76BBA31232DA95A
在GGSCI命令行通过key对密码加密
GGSCI (sywu) 8> encrypt password ogg_owner aes128 encryptkey securekey1
Encrypted password: AADAAAAAAAAAAAJATJEEYELAGIQFZDWHQAMDMCCHGIVGFIPHOCABMAYCHGSCPHGILCPCLCXCCHUEFGOC
Algorithm used: AES128
GGSCI (sywu) 9> encrypt password ogg_owner aes128 encryptkey securekey1
Encrypted password: AADAAAAAAAAAAAJANJBHVDBAGCCBOIUCTJHJVIOCVGBFSGNJFFAAGIOHBJNBWAPANGWILCPFGIXBOIXB
Algorithm used: AES128
密码加密后可以尝试使用dblogin登录数据库,验证密码
GGSCI (sywu as ogg_owner@sydb) 11> dblogin userid ogg_owner,password AADAAAAAAAAAAAJANJBHVDBAGCCBOIUCTJHJVIOCVGBFSGNJFFAAGIOHBJNBWAPANGWILCPFGIXBOIXB aes128 encryptkey securekey1
Successfully logged into database.
注意:因为在创建key时指定了key的长度,所以使用时指定的加密类型密钥长度也必须一致。
4 源端加密配置
源端配置主抽取进程加密和Data Pump进程加密。
4.1 配置主抽取进程
GGSCI (sywu as ogg_owner@sydb) 31> EDIT PaRAM ESYDB001
extract ESYDB001
SETENV(ORACLE_SID="sydb")
SETENV(NLS_LANG=AMERICAN_AMERICA.AL32UTF8)
userid ogg_owner,password AADAAAAAAAAAAAJANJBHVDBAGCCBOIUCTJHJVIOCVGBFSGNJFFAAGIOHBJNBWAPANGWILCPFGIXBOIXB &
aes128,ENCRYPTKEY securekey1
ENCRYPTTRAIL aes128,KEYNAME securekey1
EXTTRAIL /u01/app/product/ogg_src/dirdat/es
table ogg_owner.togg;
userid 中将password由原来的明码用加密后的密码代替,后面指定加密类型和密钥名称(ENCRYPTKEY);
ENCRYPTTRAIL 指定trail文件的加密类型和密钥名称(KEYNAME);
4.2 配置Data Pump进程
GGSCI (sywu) 10> edit param PSYDB001
extract psydb001
SETENV(ORACLE_SID="sydb")
SETENV (NLS_LANG=AMERICAN_AMERICA.AL32UTF8)
userid ogg_owner,password AADAAAAAAAAAAAJANJBHVDBAGCCBOIUCTJHJVIOCVGBFSGNJFFAAGIOHBJNBWAPANGWILCPFGIXBOIXB aes128 encryptkey securekey1
DECRYPTTRAIL aes128 KEYNAME securekey1
RMTHOST sywu,mgrport 7909
ENCRYPTTRAIL aes128 KEYNAME securekey1
RMTTRAIL /u01/app/product/ogg_trg/dirdat/ps
TABLE ogg_owner.togg;
因为Data Pump要读取主抽取进程保存的trail文件数据并且提供了对数据的操作功能如实现过滤、运算等复杂的工作,所以在读取后必须先对原数据进行解密再处理,最后再次加密发送到目标端;
DECRYPTTRAIL 定义将要解密的文件的加密类型和加密key(KEYNAME);
ENCRYPTTRAIL 定义最终处理后的数据加密类型和加密key(KEYNAME);
注意:解密类型和keyname必须和主进程配置的相同。
启动进程
GGSCI (sywu as ogg_owner@sydb) 42> start *
Sending START request to MANAGER ...
EXTRACT ESYDB001 starting
EXTRACT PSYDB001 is already running.
GGSCI (sywu as ogg_owner@sydb) 43> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING ESYDB001 00:01:31 00:00:08
EXTRACT RUNNING PSYDB001 00:00:00 116:02:26
5 目标端解密配置
目标端后台Collector进程在接受到源端的发送请求后将数据写入到目标端trail文件中,再由replicat进程读取、解密、重构dml或ddl语句应用到数据库,so 如果源端配置了加密则目标端必须进行解密配置,并且解密的类型和key必须和源端相同,操作步骤:
- 1 将源端创建的ENCKEYS文件发送到目标端GoldenGate根目录
- 2 Replicat进程配置解密操作
- 3 重启replicat进程
发送源端ENCKEYS文件到目标端可以scp或复制粘贴到目标端,此处省略其操作。
5.1 Replicat进程配置解密操作
[oracle@sywu ~]$ tggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 12.1.2.1.0 OGGCORE_12.1.2.1.0_PLATFORMS_140727.2135.1_FBO
Linux, x64, 64bit (optimized), Oracle 11g on Aug 7 2014 09:14:25
Operating system character set identified as UTF-8.
Copyright (C) 1995, 2014, Oracle and/or its affiliates. All rights reserved.
GGSCI (sywu) 1> edit param RSYDB001
REPLICAT rsydb001
SETENV(ORACLE_SID="sydb")
SETENV (NLS_LANG=AMERICAN_AMERICA.AL32UTF8)
USERID ogg_trg,password AADAAAAAAAAAAAHABDQFVJMADCAFECACYEPIQEJCFGDGMDHBRJXCUBOBQJEGLBPEBDMCOAACDILGAJKA &
aes128,ENCRYPTKEY securekey1
DISCARDFILE /u01/app/product/ogg_trg/discrd/reptr.desc,append,megabytes 512
DECRYPTTRAIL AES128, KEYNAME securekey1
ALLOWNOOPUPDATES
ASSUMETARGETDEFS
MAP OGG_OWNER.TOGG,target OGG_TRG.TOGG;
DECRYPTTRAIL 定义将要解密的文件的加密类型和加密密钥(KEYNAME),这里和源端必须相同;
这些都配置好了,重启replicat 进程。
6 未加密和加密trail文件对比分析
6.1 未加密trail文件分析
[oracle@sywu ~]$ strings /u01/app/product/ogg_src/dirdat/es000004
*uri:sywu::u01:app:product:ogg_src:ESYDB0016
(/u01/app/product/ogg_src/dirdat/es0000047
575523
575169
,............................................
Linux1
sywu2
2.6.32-431.23.3.el6.x86_643
##1 SMP Thu Jul 31 17:20:51 UTC 20144
x86_642
SYDB2
sydb3
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE 11.2.0.3.0 Production
TNS for Linux: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production
11.2.0.3.09
+08:003
ESYDB0011
AVersion 12.1.2.1.0 OGGCORE_12.1.2.1.0_PLATFORMS_140727.2135.1_FBO4
ESYDB001Z
OGG_OWNER.TOGG
1003
1900-01-01:00:00:00
1900-01-01:00:00:00T
AAADX2AAGAAAAA2AAA
5755236
2.138.127Z
OGG_OWNER.TOGG
1004
sywu
user
1900-01-01:00:00:00
1900-01-01:00:00:00T
AAADX2AAGAAAAA2AAB
以上的trail文件来自上次未加密的测试环境中,具体的dml
OGG_OWNER@sydb>insert into togg(id,name)values(1003,'tt') ;
1 row created.
Elapsed: 00:00:00.00
OGG_OWNER@sydb>insert into togg(id,name,type)values(1004,'sywu','user');
1 row created.
Elapsed: 00:00:00.01
So 在未加密情况下可以清楚的看到新增的id(1003,1004)和rowid(AAADX2AAGAAAAA2AAA,AAADX2AAGAAAAA2AAB);
6.2 加密trail文件分析
在源端插入如下数据:
SYS@sydb>conn ogg_owner/ogg_owner
Connected.
OGG_OWNER@sydb>insert into togg(id,name,type)values(1005,'sywu','user');
1 row created.
Elapsed: 00:00:00.09
OGG_OWNER@sydb>insert into togg(id,name,type)values(1006,'sywu','user');
1 row created.
Elapsed: 00:00:00.01
OGG_OWNER@sydb>commit;
Commit complete.
Elapsed: 00:00:00.00
分析GoldenGate Data Pump进程
GGSCI (sywu) 11> stats PSYDB001
Sending STATS request to EXTRACT PSYDB001 ...
Start of Statistics at 2015-08-31 17:32:14.
Output to /u01/app/product/ogg_trg/dirdat/ps:
Extracting from OGG_OWNER.TOGG to OGG_OWNER.TOGG:
*** Total statistics since 2015-08-31 17:29:53 ***
Total inserts 2.00
Total updates 0.00
Total deletes 0.00
Total discards 0.00
Total operations 2.00
*** Daily statistics since 2015-08-31 17:29:53 ***
Total inserts 2.00
Total updates 0.00
Total deletes 0.00
Total discards 0.00
Total operations 2.00
*** Hourly statistics since 2015-08-31 17:29:53 ***
Total inserts 2.00
Total updates 0.00
Total deletes 0.00
Total discards 0.00
Total operations 2.00
*** Latest statistics since 2015-08-31 17:29:53 ***
Total inserts 2.00
Total updates 0.00
Total deletes 0.00
Total discards 0.00
Total operations 2.00
End of Statistics.
GGSCI (sywu) 12> info PSYDB001,detail
EXTRACT PSYDB001 Last Started 2015-08-31 17:17 Status RUNNING
Checkpoint Lag 00:00:00 (updated 00:00:01 ago)
Process ID 31884
Log Read Checkpoint File /u01/app/product/ogg_src/dirdat/es000007
2015-08-31 17:29:49.000000 RBA 1865
Target Extract Trails:
Trail Name Seqno RBA Max MB Trail Type
/u01/app/product/ogg_trg/dirdat/ps 10 2043 100 RMTTRAIL
Extract Source Begin End
/u01/app/product/ogg_src/dirdat/es000007 2015-08-26 10:04 2015-08-31 17:29
/u01/app/product/ogg_src/dirdat/es000004 2015-08-26 10:04 2015-08-26 10:04
/u01/app/product/ogg_src/dirdat/es000004 2015-08-26 10:04 2015-08-26 10:04
/u01/app/product/ogg_src/dirdat/es000004 2015-08-26 10:04 2015-08-26 10:04
/u01/app/product/ogg_src/dirdat/es000004 2015-08-26 10:04 2015-08-26 10:04
/u01/app/product/ogg_src/dirdat/es000004 2015-08-26 10:04 2015-08-26 10:04
/u01/app/product/ogg_src/dirdat/es000004 * Initialized * 2015-08-26 10:04
/u01/app/product/ogg_src/dirdat/es000000 * Initialized * First Record
/u01/app/product/ogg_src/dirdat/es000000 * Initialized * First Record
/u01/app/product/ogg_src/dirdat/es000000 * Initialized * First Record
/u01/app/product/ogg_src/dirdat/es000000 * Initialized * First Record
Current directory /u01/app/product/ogg_src
Report file /u01/app/product/ogg_src/dirrpt/PSYDB001.rpt
Parameter file /u01/app/product/ogg_src/dirprm/psydb001.prm
Checkpoint file /u01/app/product/ogg_src/dirchk/PSYDB001.cpe
Process file /u01/app/product/ogg_src/dirpcs/PSYDB001.pce
Error log /u01/app/product/ogg_src/ggserr.log
源端Data Pump进程从主抽取进程保存的trail文件中读取到两条插入信息,它读取的trail文件是:/u01/app/product/ogg_src/dirdat/es000007;注意它们的工作原理,主抽取进程抽取数据加密并保存到trail文件,Data Pump进程读取trail文件解密再进行数据操作,最后发送;
[oracle@sywu ~]$ strings /u01/app/product/ogg_src/dirdat/es000007
*uri:sywu::u01:app:product:ogg_src:ESYDB0016
(/u01/app/product/ogg_src/dirdat/es0000077
597066
,............................................
Linux1
sywu2
2.6.32-431.23.3.el6.x86_643
##1 SMP Thu Jul 31 17:20:51 UTC 20144
x86_642
SYDB2
sydb3
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE 11.2.0.3.0 Production
TNS for Linux: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production
11.2.0.3.09
+08:003
ESYDB0011
AVersion 12.1.2.1.0 OGGCORE_12.1.2.1.0_PLATFORMS_140727.2135.1_FBO4
ESYDB001Z
OGG_OWNER.TOGG
AAADX2AAGAAAAA7AAA
5981816
1.86.100Z
OGG_OWNER.TOGG
uaDL
AAADX2AAGAAAAA7AAB
数据加密了,看不到了。
源端replicat进程信息
[oracle@sywu ogg_src]$ tggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 12.1.2.1.0 OGGCORE_12.1.2.1.0_PLATFORMS_140727.2135.1_FBO
Linux, x64, 64bit (optimized), Oracle 11g on Aug 7 2014 09:14:25
Operating system character set identified as UTF-8.
Copyright (C) 1995, 2014, Oracle and/or its affiliates. All rights reserved.
GGSCI (sywu) 1> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
REPLICAT RUNNING RSYDB001 00:00:00 00:00:03
GGSCI (sywu) 4> stats RSYDB001
Sending STATS request to REPLICAT RSYDB001 ...
Start of Statistics at 2015-08-31 18:40:08.
Replicating from OGG_OWNER.TOGG to OGG_TRG.TOGG:
*** Total statistics since 2015-08-31 17:30:03 ***
Total inserts 2.00
Total updates 0.00
Total deletes 0.00
Total discards 0.00
Total operations 2.00
*** Daily statistics since 2015-08-31 17:30:03 ***
Total inserts 2.00
Total updates 0.00
Total deletes 0.00
Total discards 0.00
Total operations 2.00
*** Hourly statistics since 2015-08-31 18:00:00 ***
No database operations have been performed.
*** Latest statistics since 2015-08-31 17:30:03 ***
Total inserts 2.00
Total updates 0.00
Total deletes 0.00
Total discards 0.00
Total operations 2.00
End of Statistics.
GGSCI (sywu) 2> info RSYDB001,detail
REPLICAT RSYDB001 Last Started 2015-08-31 17:16 Status RUNNING
Checkpoint Lag 00:00:00 (updated 00:00:05 ago)
Process ID 31615
Log Read Checkpoint File /u01/app/product/ogg_trg/dirdat/ps000010
2015-08-31 17:29:49.000465 RBA 2043
Current Log BSN value: (requires database login)
Last Committed Transaction CSN value: (requires database login)
Extract Source Begin End
/u01/app/product/ogg_trg/dirdat/ps000010 2015-08-26 10:04 2015-08-31 17:29
/u01/app/product/ogg_trg/dirdat/ps000008 2015-08-26 09:52 2015-08-26 10:04
/u01/app/product/ogg_trg/dirdat/ps000008 2015-08-25 13:58 2015-08-26 09:52
/u01/app/product/ogg_trg/dirdat/ps000006 2015-08-25 13:49 2015-08-25 13:58
/u01/app/product/ogg_trg/dirdat/ps000006 2015-08-25 13:49 2015-08-25 13:49
/u01/app/product/ogg_trg/dirdat/ps000006 2015-08-25 13:49 2015-08-25 13:49
/u01/app/product/ogg_trg/dirdat/ps000006 * Initialized * 2015-08-25 13:49
/u01/app/product/ogg_trg/dirdat/ps000006 * Initialized * First Record
/u01/app/product/ogg_trg/dirdat/ps000000 * Initialized * First Record
/u01/app/product/ogg_trg/dirdat/ps000000 * Initialized * First Record
/u01/app/product/ogg_trg/dirdat/ps000000 * Initialized * First Record
/u01/app/product/ogg_trg/dirdat/ps000000 * Initialized * First Record
Current directory /u01/app/product/ogg_trg
Report file /u01/app/product/ogg_trg/dirrpt/RSYDB001.rpt
Parameter file /u01/app/product/ogg_trg/dirprm/rsydb001.prm
Checkpoint file /u01/app/product/ogg_trg/dirchk/RSYDB001.cpr
Checkpoint table OGG_TRG.OGG_CHK
Process file /u01/app/product/ogg_trg/dirpcs/RSYDB001.pcr
Error log /u01/app/product/ogg_trg/ggserr.log
目标端同样插入两条数据,replicate进程从/u01/app/product/ogg_trg/dirdat/ps000010文件中读取了后台collector进程接受到的trail数据。
[oracle@sywu ~]$ strings /u01/app/product/ogg_trg/dirdat/ps000010
*uri:sywu::u01:app:product:ogg_src:PSYDB0015
*uri:sywu::u01:app:product:ogg_src:ESYDB0016
(/u01/app/product/ogg_trg/dirdat/ps0000107
598181
594135
,............................................
Linux1
sywu2
2.6.32-431.23.3.el6.x86_643
##1 SMP Thu Jul 31 17:20:51 UTC 20144
x86_642
SYDB2
sydb3
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE 11.2.0.3.0 Production
TNS for Linux: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production
11.2.0.3.09
+08:003
ESYDB0011
AVersion 12.1.2.1.0 OGGCORE_12.1.2.1.0_PLATFORMS_140727.2135.1_FBO4
ESYDB001Z
ESYDB001Z
ESYDB001Z
OGG_OWNER.TOGG
AAADX2AAGAAAAA7AAA
5981816
1.86.100Z
OGG_OWNER.TOGG
uaDL
AAADX2AAGAAAAA7AAB
文件的信息同样是加密的,replicate读取后进行解密、重构、应用到目标库。
7 OBEY文件
GodlenGate的每个Extract、Replicat进程都需要配置数据库连接,随着进程的增加和各自分工不同或数据交换的目标地不同,如果每个都这样配置,那当数据库用户密码改变了,那岂不是要大动干戈的修改,有没有什么方式可以像面向对象设计一样把公共的部分提取出来呢?肯定有了,GoldenGate提供了一个叫OBEY的参数,允许将公共常用的部分提取保存到独立的文件中实现共享和重用,例如下面的进程配置:
GGSCI (sywu) 2> view param PSYDB001
extract psydb001
SETENV(ORACLE_SID="sydb")
SETENV (NLS_LANG=AMERICAN_AMERICA.AL32UTF8)
userid ogg_owner,password AADAAAAAAAAAAAJANJBHVDBAGCCBOIUCTJHJVIOCVGBFSGNJFFAAGIOHBJNBWAPANGWILCPFGIXBOIXB aes128 encrypt
key securekey1
DECRYPTTRAIL aes128 KEYNAME securekey1
RMTHOST sywu,mgrport 7909
ENCRYPTTRAIL aes128 KEYNAME securekey1
RMTTRAIL /u01/app/product/ogg_trg/dirdat/ps
TABLE ogg_owner.togg;
数据库连接、DECRYPTTRAIL、RMTHOST这些参数基本都是共用和不常变的,so 可以将其保存到独立的文件中;
[oracle@sywu dirdef]$ vim /u01/app/product/ogg_src/dirdef/dbConnect.obey
userid ogg_owner,password AADAAAAAAAAAAAJANJBHVDBAGCCBOIUCTJHJVIOCVGBFSGNJFFAAGIOHBJNBWAPANGWILCPFGIXBOIXB aes128 encrypt
key securekey1
DECRYPTTRAIL aes128 KEYNAME securekey1
RMTHOST sywu,mgrport 7909
然后在进程参数配置文件中通过OBEY引用该文件;
extract psydb001
SETENV(ORACLE_SID="sydb")
SETENV (NLS_LANG=AMERICAN_AMERICA.AL32UTF8)
OBEY /u01/app/product/ogg_src/dirdef/dbConnect.obey
ENCRYPTTRAIL aes128 KEYNAME securekey1
RMTTRAIL /u01/app/product/ogg_trg/dirdat/ps
TABLE ogg_owner.togg;
这样以后涉及数据库连接的信息就只用更改该文件了,GoldenGate支持16级子文件递归调用,这也就意外着可以将更多的配置细化管理。
8 总结
GoldenGate提供了AES128、AES192、AES256和BLOWFISH类型加密,BLOWFISH在keyname为default时可用,一般用于较早版本中,AES类型的加密更为安全。主抽取进程的加密是可选的,可以只在Data Pump进程中进行数据加密。进程的加密要考虑到加密的长度和密钥名称,必须先用GoldenGate提供的工具keygen或其它的工具生成密钥保存在ENCKEYS lookUp文件中,然后在GGSCI命令行中根据密码类型和ENCKEYS中的密钥名称生成加密密码,最后在配置文件或GGSCI命令中使用加密密码。目标端必须具有和源端相同的ENCKEYS lookUp文件并且在配置解密时,加密解密的类型和密钥名称要一致。
--The end(2015-08-31)
Oracle GoldenGate 三、加密的更多相关文章
- Oracle GoldenGate 四、数据过滤和数据项匹配
写在开始前 从两周前我花了大量的业余时间阅读GoldenGate官方文档,并根据文档实践和进一步学习了解GoldenGate,以下便是根据官方文档理解总结的GoldenGate学习内容: Oracle ...
- 76 道 Oracle Goldengate 面试问题
基础 12c新特性 性能 Troubleshoot 其它 1. Oracle Goldengate 支持部署到哪些拓扑? GoldenGate supports the following topol ...
- Oracle GoldenGate学习之Goldengate介绍
Oracle GoldenGate学习之Goldengate介绍 (2012-10-02 17:07:27) 标签: 检查点 数据传输 队列 进程 分类: Goldengate Goldengate介 ...
- Oracle GoldenGate实现数据库同步
前言:最近刚好在弄数据库同步,网上查了些资料再加上自己整理了一些,做个分享! 一.GoldenGate的安装 1.安装包准备 数据库版本:Oracle Database 11g Release 2(1 ...
- 为Oracle GoldenGate准备数据库
了解如何为Oracle GoldenGate准备数据库,包括如何配置连接和日志记录,如何在数据库中启用Oracle GoldenGate,如何设置闪回查询以及如何管理服务器资源. 为集成进程配置连接 ...
- Oracle GoldenGate常用参数
OGG(Oracle GoldenGate)参数介绍 所有的GoldenGate进程均有参数文件 Manager Extract Replicat Utilities 所有参数均有缺省配置 实际应用只 ...
- ORACLE GoldenGate在Windows与AIX平台ORACLE的单向、双向数据传输配置及其测试
第1章...... GoldenGate概述 1.1 GoldenGate技术原理 1.2 GoldenGate可靠的复制 1.3 GoldenGate ...
- Oracle GoldenGate 11.2 OGG-01168(转)
为客户部署的Oracle GoldenGate在测试阶段出现如下的错误: 2012-04-24 10:45:20 ERROR OGG-01168 Oracle GoldenGate Deliv ...
- Oracle GoldenGate (以下简称ogg)在异种移植os同一种db之间的数据同步。
Oracle GoldenGate (以下简称ogg)在异种移植os同一种db之间的数据同步. ogg要实现的功能: 同步可以细化到单个表,满足特定的where条件rows同步,称号column同步. ...
随机推荐
- bootstrap table教程--使用入门基本用法
笔者在查询bootstrap table资料的时候,看了很多文章,发觉很多文章都写了关于如何使用bootstrap table的例子,当然最好的例子还是官网.但是对于某部分技术人员来说,入门还是不够详 ...
- 【idea】idea的常规设置
[一]在输入框输入字符,自动提示代码 File->Power Save Mode 去掉“对号” [二]自动代码提示的快捷键设置 (1)不区分大小写提示 (2)修改快捷提示快捷键.将basic= ...
- FastAdmin Bootstrap-table 特定某行背景变红
FastAdmin Bootstrap-table 特定某行背景变红 rowStyle: function (row, index) { var style = {css:{'background': ...
- Firefox渗透插件—Web渗透必备工具
1:Firebug Firefox的 五星级强力推荐插件之一,不许要多解释 2:User Agent Switcher 改变客户端的User Agent的一款插件 3:Hackbar 攻城师们的必备工 ...
- 用JavaScript解决Placeholder的IE8兼容问题
<script type="text/javascript"> if( !('placeholder' in document.createElement('input ...
- Spring AOP 不同配置方式产生的冲突问题
Spring AOP的原理是 JDK 动态代理和CGLIB字节码增强技术,前者需要被代理类实现相应接口,也只有接口中的方法可以被JDK动态代理技术所处理:后者实际上是生成一个子类,来覆盖被代理类,那么 ...
- TF54000: 由于服务器时钟设置可能不正确,无法更新数据解决方案(补充)
此问题出现的原因: 服务器时间比本地时间大.由于TFS源代码的Source Control会根据签入时间做判断.如果后续签入的时间小于变更集的最新版本的时间,就会报错误“TF54000”,并拒绝签入. ...
- [Nlog]使用经验
<?xml version="1.0" ?> <nlog xmlns="http://www.nlog-project.org/schemas/NLog ...
- MySQL单机单实例安装脚本
说明:使用mysql generic tar.gz包快速安装mysql 三个文件installation_of_single_mysql.sh.template_install-my.cnf.mysq ...
- 《Linux内核精髓:精通Linux内核必会的75个绝技》一HACK #9 RT Group Scheduling 与RT Throttling
HACK #9 RT Group Scheduling 与RT Throttling 本节介绍对实时进程所使用的CPU时间进行限制的功能RT Group Scheduling和RT Throttlin ...