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Oracle Streams Replication Made Easy

Stephan HaisleyPrincipal Member Technical StaffMaximum Availability Architecture (MAA)

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Agenda

• Oracle Streams Overview

• Streams and Grid Control

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Oracle Streams

• Simple solution for information sharing

•

Provides– Uniquely flexible information sharing

– Active/Active replication

– Real-time ETL for data warehouses

– Availability during database migration

– Availability during application upgrade

– Message queuing

– Event management and notification

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Apply1Capture

Apply2

Oracle StreamsPowerful Logical Database Replication Solution

Redo Logs 

Non-Oracle Database 

• All sites active and updateable

• Automatic conflict detection & optional resolution• Supports data transformations

• Flexible configurations – n-way, hub & spoke, …

• Database platform / release / schema structure can differ

• Provides HA for custom apps where update conflicts can be avoided or managed

Transparent

Gateway

Propagate

Target Database 

Source Database 

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Streams Functional Components

• Asynchronous Information Sharing• Capture messages at a database– Store messages in a queue

–Propagate messages across databases

– Apply messages at local or remote databases

• Integrated feature of the database

• Flexibility to meet business requirements beyondreplication

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Grid Control 10.2.0.5Simplified Management, Fine-Grained Monitoring

• Wizards to configure replication

• Monitor Streams components by database or by path

– Database: Streams components on specific database

– Path: Streams components in path from source to target (acrossdatabases)

• Streams metrics for EM alerts notification

– Default thresholds for Latency, Process Status, or Errors

– Additional metrics(threshold) available for alerting.

• Automated Workflows for common Streams/DBA actions

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Streams Replication Wizard

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Monitoring with Grid Control

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Streams Metrics

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Available Streams Metrics

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Expanded Metrics

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Streams Overview

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Monitor Streams Activity by Path11g Database

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Monitor Streams by Database

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Automated WorkflowCreate Source LogMiner Session

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Automated WorkflowRedo Scanning

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Automated WorkflowReview Source Transaction

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Automated WorkflowReview Source Transaction

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Manage Process ParametersExample: Apply Parameters

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Managing Apply ErrorsAutomatic Conflict Detection

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Component Details

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Automatic Transformations

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Monitor Streams Activity by Path11g Database

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Apply Status

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Apply Statistics

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Streams Performance Advisor View

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Apply Server Statistics

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Apply Server Statistics

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Session Information

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Session Information – SQL Identification

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Streams Performance Advisor PageAdvisor Central

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Replication Made Easy

Grid Control is a great tool managing Streams

– Streams configuration

– Monitoring Streams

– Troubleshooting a Streams environment

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Streams Resources

• Oracle Streams Technology Portal on OTN:http://otn.oracle.com/products/dataint/content.html

• Oracle Streams Customer Success Stories on OTN:http://www.oracle.com/technology/deploy/availability/htdocs/HA_CaseStudies.html#streams

• 10.2 Oracle Streams Recommendations and BestPractices

– Streams Configuration Best Practices (10.2) on OTN

– Streams Performance Tuning Best Practices (10.2) on OTN

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MyOracle Support Notes– 784021.1 - Streams and Enterprise Manager 10g Release 5 Grid Control

– 556742.1 - Extended Datatype Support

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For More Information

search.oracle.com

or

oracle.com

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