Oracle GoldenGate - Herve Schweitzer, dbi services - Hilton Basel 5/2011

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Lead of High Availability Solutions

Principal Consultant at dbi services

DMK project Manager

Focus: High Availability projects

Oracle Data Guard

Oracle RAC 11.2 (Grid Infrastructure)

Oracle Failover Cluster (Windows Failsafe)

Main Skills:

Oracle 11g OCP

Oracle Backup/Recovery

Oracle Performance Tuning

Who I am

Herve Schweitzer

www.dbi-services.com 1 06.10.2011

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Agenda

Agenda

i. Introduction

ii. Architecture

iii. Used Cases

iv. Demo

v. Conclusion

Oracle GoldenGate

06.10.2011 2 www.dbi-services.com

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Copyright (C) GoldenGate Software, Inc. 1995-2009

Based in San Francisco

$100 Million revenue in 2008

500 Employees

Oracle officially purchased GoldenGate September 3, 2009

First Oracle GoldenGate 11g release September 10, 2010

Oracle GoldenGate

GoldenGate is Strategic for Oracle


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Leader in real-time data solutions

Complements existing Oracle products

Used by major Fortune 500 companies

Continuous availability for heterogeneous systems

Real-time data access for reporting

Real-time data access for BI, Data warehouse, etc…

Zero-downtime migration for Oracle Database

Zero-downtime migration for Applications

Oracle GoldenGate

GoldenGate is Strategic for Oracle


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Agenda

Agenda

i. Introduction

ii. Architecture

iii. Used Cases

iv. Demo

v. Conclusion

Oracle GoldenGate


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Real-time data provided with low-impact capture, routing, transformation, and transaction delivery

Facilitates high-performance

Heterogeneous database and platforms

Maintains transaction integrity

Resilient against interruptions and failures

Easier to implement, customize, and maintain

Oracle GoldenGate

GoldenGate Technical Overview


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Oracle Golden Gate Architecture


Online

Log Files

Archived

Log Files Archived

Log Files

Robust and Modular Architecture

Capture

(Extract)

Source

Database Target

Database

Online

Log Files

Remote

Trail

Delivery

(Replicat)

Extract

Trail Data Pump

Mgr Mgr

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Oracle GoldenGate Use Cases for Real Time Solutions


Active - Active

Hot Standby

Multi Master

Data Distribution Cascading

Zero Downtime

Migration and Upgrade

Reporting Database

Data Collection

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Integration with ETL products Using GoldenGate Application Adapter

Flexibility to apply transformations/mappings within the target database

DDL Support (for supported database)

Attention: Oracle recycle bin must be turned off

Detect and resolve conflict in Multi Master

Event marker infrastructure

Routing compression and encryption

Deferred Apply

Automated Memory Management

Oracle GoldenGate

GoldenGate Additional Key Features


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Oracle GoldenGate

GoldenGate Heterogeneity


Databases O/S and Platforms

Oracle GoldenGate Capture: • Oracle • DB2 since v9.7 *new* • Microsoft SQL Server • Sybase ASE • MySql *new* • Etc…

Linux Sun Solaris Windows 2000, 2003, 2008 Oracle Exadata HP NonStop HP-UX UP OpenVMS IBM AIX IBM z Series zLinux

Oracle GoldenGate Delivery: • All listed above • TimesTen *new* • ETL products • Greenplum • Netazza, HPNeoview

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Oracle GoldenGate

Licencing Model


www.oracle.com -> Store-> Fusion Middleware-> Data integrator

http://www.oracle.com/

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Agenda

Agenda

i. Introduction

ii. Architecture

iii. Used Cases

iv. Demo

v. Conclusion

Oracle GoldenGate


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Oracle GoldenGate Zero Downtime Migration Example


Capture

Start extract

begin now

Remote

Trail Delivery

Start Replicat

aftercsn <value>

Start Export

flashback_scn=<value>

Import Data into

empty schema

Copy Dump

File

Select

dbms_flashback.get_system_chang

e_number from dual;

<value>

exp/imp used for the initial load

1

3 4

5

2

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Oracle GoldenGate

Zero Downtime Migration Example


Capture

Start extract

begin now 1

Start Export

flashback_scn=<value> 3

Import Data into

empty schema 4

Delivery

Start Replicat

aftercsn <value>

5

Oracle 9i Windows

Oracle 11.2 Linux

Select dbms_flashback.

get_system_change_number

from dual;

<value> 2

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Oracle GoldenGate DR Setup (Live Standby Database)


Capture

Start extract

Lag extract

Stop extract

Remote

Trail Delivery

Start replicat

Stop replicat

Delivery

Start Replicat

Capture

start Extract

Remote

Trail

Switchover Scenario Example

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Oracle GoldenGate MultiMaster Setup


Capture

Start extract

Remote

Trail Delivery

Start replicat

Delivery

Start Replicat

Capture

start Extract

Remote

Trail

Active-Active Example

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Oracle GoldenGate

Non-Supported Data Types


Non-Supported Oracle Goldengate Data Types

ORDDICOM ANYDATA ANYDATASET ANYTYPE BFILE MLSLABEL TIMEZONE_ABBR TIMEZONE_REGION URITYPE UROWID

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Oracle GoldenGate

Not Supported Schemas


DDL On Oracle Reserved Schemas is not supported

ANONYMOUS AURORA $JIS $UTILITY $AURORA $ORB $UNAUTHENTICATED CTXSYS DBSNMP DMSYS DSSYS EXFSYS MDSYS ODM ODM_MTR OLAPSYS ORDPLUGINS

ORDSYS OSE$HTTP$ADMIN OUTLN PERFSTAT PUBLIC REPADMIN SYS SYSMAN SYSTEM TRACESVR WKPROXY WKSYS WMSYS XDB

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Oracle GoldenGate supports tables with virtual columns, but does not capture change

Tables created as EXTERNAL are not supported

Tables created with table compression or OLTP table compression are not supported

Materialized views created WITH ROWID are not supported

IOT (Index Organized Tables) are only supported for Oracle version 10.2 and later

Oracle GoldenGate

Not Supported


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Agenda

Agenda

i. Introduction

ii. Architecture

iii. Used Cases

iv. Demo

v. Conclusion

Oracle GoldenGate


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Oracle GoldenGate

Zero Downtime Migration Example


Capture

Start extract

begin now 1

Start Export

flashback_scn=<value> 3

Import Data into

empty schema 4

Delivery

Start Replicat

aftercsn <value>

5

Oracle 9i Windows

Oracle 11.2 Linux

Select dbms_flashback.

get_system_change_number

from dual;

<value> 2

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Agenda

Agenda

i. Introduction

ii. Architecture

iii. Used Cases

iv. Demo

v. Conclusion

Oracle GoldenGate


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+ GoldenGate avoids any production downtime and business loss during cross-platform database migration and upgrade

+ GoldenGate allows to benefit from each infrastructure investment, providing data reporting on the target site

+ GoldenGate supports large data volume for large mission-critical businesses

GoldenGate allows Zero downtime application modification and upgrade with some additional coding effort

However, according to dbi services expertise Data Guard remains the best solution for High Availability:

No synchronous transaction transfer

No possibility for No Data loss setup

Not a 100% identical Database (only a logical copy)

Do you really want Cross Platform High Availability ?

Oracle GoldenGate

Conclusion


Oracle GoldenGate - Herve Schweitzer, dbi services - Hilton Basel 5/2011

Technology

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