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1 Copyright © 2013, Oracle and/or its affiliates. All rights reserved.
Oracle Data Integration Solutions GoldenGate New Features Summary
Valarie Bedard
Principle Sales Consultant
Tony Velardo
DIS Account Manager
Oracle Data Integration Moving Data to Transform Business
2 Copyright © 2013, Oracle and/or its affiliates. All rights reserved.
Note to Reader - March 2014
This deck represents highlights of features in OGG 11.2 and OGG 12.x
It does not represent ALL features in either of these releases
It is recommended that the reader review the Release Notes for either version of OGG to get the complete picture of new features per release
It is recommended that the reader review the OGG Install Guide, Admin Guide, and Reference Guides for either version to understand dependencies, usage and syntax for any functionality or feature mentioned in this deck.
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Quick List of OGG Database Integration points
Ability to ignore triggers when applying data (OGG V 12 default)
Ability to ignore constraints (like cascade delete) when applying data
Optimized ASM capture - DBLOGREADER
Access to Oracle’s Encryption Methods
Transparent Data Encryption
Tablespace Encryption
RMAN Integration – log retention
Automatic Schema level supplemental logging
Integrated Capture - Capture compressed data including EHCC
Database Vault access
Oracle’s AES encryption algorithms for trail files
OEM Grid Control Plug-in for Monitoring, control and metrics
Exadata DBFS optimizations for GoldenGate
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Oracle GoldenGate 11g Release2
• Integrated Extract
• Conflict Detection and Resolution
• Manageability and Monitoring
• Security and Performance
• Globalization
• Event Marker Enhancement
• Coherence Integration
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Integrated Extract
Source database and Integrated Extract process are in the same machine
User/Application changes
Record
changes Capture
changes
Redo Logs
Capture
Integrated
Extract
Oracle Database
Trail
File …..
Source Machine
LCR1
LCR2
LCR3
….
….
….
Logical Change
Records
• Leverages Proprietary Oracle Database LCR API
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Integrated Extract Benefits - Summary
Category New Features Comments
Exadata Capture support for EHCC compression Enable capture from Exadata sources
Compressions Capture support for OLTP, Segment compression
Distributed Transactions XA-RAC, PDML Support capture from XA transactions originated from multiple nodes of RAC
RAC Simplified RAC management No need to modify parameter files, if an instance is not available
New Datatypes XML OR, XML Binary
LOB Full and Partial read from REDO log
REDO Processing Multithreaded support Performance gain from parallel processing
Deployment Source and Downstream capture support Helps to offload some of the extract work from the source database;
DDL Captures tables created with column level password specification
Others Support IOT with MAPPING table option
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Integrated Extract – Expanded Deployment Options
User/Application changes
Record
changes
Redo Logs
Capture
Integrated
Extract
Oracle Database
Trail
File
Source Machine
Source database and Integrated Extract process are in different machine
Standby
Redo Logs
Oracle Database
Downstream Machine
….. Continuous REDO
Shipping
Capture
changes
LCR1
LCR2
LCR3
….
….
….
Logical Change
Records
Capture
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• Conflicts occur when the timing of simultaneous changes results in one of these
out-of-sync conditions:
– a replicated insert attempts to add a row that already exists in the target.
– the before image of a replicated update does not match the current row in the target.
– a replicated delete attempts to remove a row that does not exist in the target.
Conflict Detection and Resolution
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Conflict Detection and Resolution
INSERTROWEXISTS Insert
Overwrite
Ignore
Discard
USEMIN,USEMAX
UPDATEROWMISSING
Update
Overwrite
Ignore
Discard
UPDATEROWEXISTS
Overwrite
Ignore
Discard
USEMIN,USEMAX
USEDELTA
DELETEROWMISSING
Delete
Ignore
Discard
DELETEROWEXISTS Overwrite
Ignore
Discard
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Performance - Streaming
• Prior to Oracle GoldenGate 11gR2 – Synchronous data communication between data pump
extract and remote collector process
– Data sent by data pump extract to remote collector
process must be followed with ACK from the remote
collector. Extract can only send out new data after ACK.
• Oracle GoldenGate 11gR2 – Acknowledgement message can be skipped for every
data sent
– Remote collector does not send an acknowledgement
to the data pump extract unless a packet contains a
flag requesting a response, typically when the data
pump extract must checkpoint or determine a write
position.
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Security Enhancements: Encryption
TCP/IP
Source
Database Target
Database
GGSCI Interactive Interface
Manager Manager GGSCI Interactive Interface
LAN / WAN / INTERNET
Over TCP/IP
Parameter Files
Parameter Files
PASSWORDS
PASSWORDS
BLOWFISH, AES128, AES192,AES256
IPv6 support
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• Database Object Name Enhancement
– Non US-ASCII Character Support (both DDL/DML)
• Support database object name with any characters including European accent, multi-byte,
white space and symbols as long as database supports
– Database Like Object Level Case Sensitivity Support
• Oracle, DB2 and SQL/MX case sensitive object name
• Case sensitive from/to case insensitive mapping
• Partial Character Set Conversion
– Implicit Character Set Conversion Support by replicat
• Between two different character set CHAR/VARCHAR/CLOB columns
• CHAR/VARCHAR/CLOB from/to NCHAR/NVARCHAR/NCLOB columns
Globalization
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Event Marker System 11gR2
Target Database
Source Database
User/Application changes
Transaction Logs
LAN / WAN / INTERNET
Over TCP/IP
ACTIONS
TRACE
LOG
CHECKPOINTBEFORE
IGNORE
DISCARD
ROLLOVER
REPORT
ABORT
CHECKPOINTAFTER
FORCESTOP/STOP
SHELL with parameters
SUSPEND/RESUME
DDL
Event
record
Event
record
Event
record
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Coherence HotCache
• Coherence/GoldenGate Integration
– Capture changes from DB
– Pump the data to coherence node,
using Java
– Toplink maps relational changes to
the objects
– Updates the cache
– User will see the latest data in their
cache in “Real-Time” after the
database is updated
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Oracle GoldenGate 12c Highlights
Optimized for Oracle Database 12c
Non-consolidated, Multitenant and Cloud-based Real-Time Replication
Three part naming convention, New data types (Large VARCHAR)
Integrated Delivery for the Oracle Database
Leveraging high-speed, lightweight Streaming API built Exclusively for OGG to take
advantage of database parallel apply server for auto dependency aware parallel apply
Coordinated Apply for Non-Oracle Databases
Orchestrates the High-Speed Apply Processes & Simplifies Setup and Management
Expanded Heterogeneity
12c Brings Support for New Databases and Enhancements to Existing Supported Platforms
Improved Ease of Use
Automatic Discard File, Enhanced Debugging, Schema Wildcarding, and Improved Security
Enhanced High Availability for Zero Data Loss
Integration with Data Guard and FSFO for Automated & Transparent failover of Components
Expanded Oracle Application and Technology Support
Active/Active ATG, Low Downtime E-Business Suite Migrations and Coherence Integration
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Oracle GoldenGate 12.1.2 New Functionality
16
• New with OGG 12.x
– Oracle Installer
– Oracle database Version 12 CDB support
– 3 part object name support
– Automatic Discard
– Improved initial load with added data type support for remote task
– Improved SHOWSYNTAX
– Schema Wildcard Support
– Credential store for userid/(encrypted)password >> Alias
– Source time zone in trail, replicat sets its session to this
– Extract start at CSN ( Oracle SCN)
– Oracle dbms_goldengate_auth.grant-admin_priviledge Package
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17
Integrated Replicat
• Integrated Replicat for Oracle target databases only
– 12.1.0.1 and 11.2.0.4
• Leverages database parallel apply servers for automatic dependency
aware parallel apply
• Minimal changes to replicat configuration
– Single replicat parameter file for all tables
– Single Replicat, no need to use @RANGE or THREAD or other
splitting
Overview
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Oracle Database
Integrated Replicat Architecture Diagram
Lightweight
Streaming API
Replicat
Receiver Preparer Coordinator
Applier 1
Applier N
Replicat
• Reads the trail file
• Constructs logical change
records (LCRs)
• Transmits LCRs to Oracle
Database via the Lightweight
Streaming API
Inbound Server (Database Apply Process)
• Receiver: Reads LCRs
• Preparer: Computes the dependencies between the transactions (primary key, unique
indexes, foreign key) , grouping transactions and sorting in dependency order.
• Coordinator: Coordinates transactions, maintains the order between applier processes.
• Applier: Performs changes for assigned transactions, including conflict detection and
error handling.
Inbound Server
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Integrated Replicat - Dependency Aware Apply
• Source Database Supplemental Logging
Supplemental logging of scheduling columns (PK, UI, FK) needed for dependency aware
apply processing at target
New default of ADD TRANDATA is to log all unique indexes and foreign key columns .
If Primary Key, Unique Index, Foreign Key columns are same at both source and
target, ADD TRANDATA provides requisite information. If target has different
scheduling columns, then ADD TRANDATA [table] COLS …format should be
used to identify any additional columns
For old behavior specify NOSCHEDULINGCOLS option to only log primary key
ADD TRANDATA [table], NOSCHEDULINGCOLS
ADD SCHEMATRANDATA [schema], NOSCHEDULINGCOLS
• Scheduling columns must be present in trail file
Extract parameter LOGALLSUPCOLS
Includes any supplementally logged column in trail file
Automatically enables GETUPDATEBEFORES and NOCOMPRESSDELETES
19
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Converting to Integrated Replicat
• Convert to integrated mode from existing nonintegrated replicat
GGSCI> STOP REPLICAT repdb
GGSCI> ALTER REPLICAT repdb, INTEGRATED
– Updates checkpoint file to indicate INTEGRATED
– DB checkpoint table is not maintained when using integrated replicat
• Consolidate the parameter files into a single file
• Start replicat with proper parameter file
– GGSCI> START REPLICAT repdb
• Registers replicat repdb1 database
• Starts and attaches to inbound server
• INFO REPLICAT repdb will show INTEGRATED in output
20
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Coordinated Replicat
• Applicable to all databases
• Full barrier coordination across events requiring ordering
– DDL (Oracle only)
– Primary Key Update
– EMI
– SQLEXEC
• Ease of Use
– Simplify parameter file manageability (fewer param files)
– Simplify error recovery
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Unified Parameter File (THREAD)
MAP sales.acct1, TARGET sales.acct1;
MAP sales.acct2, TARGET sales.acct2;
MAP sales.acct3, TARGET sales.acct3;
MAP sales.acct1, TARGET sales.acct1, THREAD(1); MAP sales.acct2, TARGET sales.acct2, THREAD(2); MAP sales.acct,3 TARGET sales.acct3, THREAD(3);
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Unified Parameter File (THREADRANGE)
MAP sales.acct, TARGET sales.acct, FILTER (@RANGE (1, 3, ID));
MAP sales.acct, TARGET sales.acct, FILTER (@RANGE (2, 3, ID));
MAP sales.acct, TARGET sales.acct, FILTER (@RANGE (3, 3, ID));
MAP sales.acct, TARGET sales.acct, THREADRANGE(1-3, ID));
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Key Concepts Coordinated vs. Integrated Replicat
24
Coordinated Replicat
Integrated Replicat
User Specified Partitioning Automatic Scheduling
Split transaction Semantics
Does not split transactions
All databases Oracle specific with version requirements
Continues to employ SQL generation and execution outside the database.
Apply is in the database server. Tight integration with Oracle database.
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Integrated Extract
• Integrated Extract was introduced in Oracle GoldenGate 11.2
• Oracle GoldenGate 12.1.2 enhances the feature.
• With Oracle GoldenGate 12.1.2
– By default, all newly created extracts will be integrated extract
– Upgrading from old IE you can use TRANLOGOPTION _LCRCAPTUREPROTOCOL
V2
– _LCRCAPTUREPROTOCOL V2 provides better performance by
• Streamlined for improved performance (V2 as fast or faster than Classic Extract)
• Drastic improvement in LOB performance
• Reduced overhead on database
• Available when the mining server is 11.2.0.3 BP 14 and higher or Oracle 12c
Overview
25
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Integrated Extract
• Requirements:
– Database must be running Oracle Database 12c (12.1.0.1), 11.2.0.4 and later versions.
– DDL Trigger Removal is required for CDB.
• Behavior
– Integrated Extract running against Oracle Database 12c or 11.2.0.4 will automatically run in this
mode
• No need to run DDL setup scripts
• DDL trigger can remain enabled
– Integrated Extract running against Oracle Database 11g Release 11.2.0.3 will get metadata
gathered from DDL trigger
– Classic Extract will continue to require existence of DDL trigger
DDL Trigger Removal
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Integrated Extract and Replicat Review
• Integrated Extract
– Oracle GoldenGate 12.1.2: the source database can be 11.1 or 11.2 or above. ... the MINING
database has to be version newer than the source database, but must be 11.2.0.3 BP 6 or higher.
Same as OGG 11.2.1.
– If the source database is Oracle DB 12.1, then OGG 12.1.2 must be used.
– For Oracle Database 12c with CDB setup, integrated extract is required.
• Integrated Replicat
– Target database has to be Oracle Database 12.1.0.1 and 11.2.0.4.
– The source database (Extract) can be other databases but have to include required supplemental
logging information for dependency calculation.
• Oracle GoldenGate 11.1.1 and 11.2.1 versions or non Oracle source databases, use 2 parameters: GETUPDATEBEFORES and NOCOMPRESSDELETES, these are required.
• For Oracle GoldenGate 12.1.2 use LOGALLSUPCOLS and UPDATERECORDFORMAT COMPACT. This works for classic and integrated extract only.
Oracle Database Only Support
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Oracle GoldenGate 12c Database Support
• Oracle Database
– Oracle Database 12c
– Multitenant Container Database (CDB)
– More Datatypes: Large VARCHAR2
• Other Databases
– MySQL 5.6 & NDB 7.x Clusters
– Sybase 15.7
– DB2/LUW 10.1
28
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Join the Data Integration Community Twitter or Facebook twitter.com/ORCLGoldenGate facebook.com/OracleDataIntegration
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Oracle’s Public Help Forum http://forums.oracle.com/forums/forum.jspa?forumID=860&start=0
Oracle Technology Network
OTN: GoldenGate http://www.oracle.com/technetwork/middleware/goldengate/overview/index.html
Oracle Learning Library http://apex.oracle.com/pls/apex/f?p=44785:1:0::NO
MOS Knowledgebase http://support.oracle.com/
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