Purging the metadata version history
by Ahmed Aboulnaga, Harold Dost, Arun Pareek
Oracle SOA Suite 12c Administrator's Guide
- Oracle SOA Suite 12c Administrator's Guide
- Table of Contents
- Oracle SOA Suite 12c Administrator's Guide
- Credits
- About the Authors
- About the Reviewers
- www.PacktPub.com
- Preface
- 1. SOA Infrastructure Management – what You Need to Know
- Identifying and overcoming monitoring and management challenges in the SOA
- Centralized monitoring and management of the SOA platform
- Performance monitoring and management
- Managing composite application lifecycles
- Understanding the Oracle Fusion Middleware landscape
- The Oracle SOA Suite 12c infrastructure stack
- New features of Oracle SOA Suite 12c
- Summary
- 2. Navigating Enterprise Manager Fusion Middleware Control 12c
- 3. Startup and Shutdown
- 4. Managing Services
- Managing SOA composite lifecycles
- Structuring SOA composites with partitions
- Managing OSB service lifecycles
- Summary
- 5. Deploying Code
- Deploying SOA composites
- Deploying OSB projects
- Deploying BAM artifacts
- Deploying MDS artifacts
- Summary
- 6. Monitoring Oracle SOA Suite 12c
- SOA transaction monitoring
- The DMS Spy Servlet
- Identifying and viewing log file entries
- Monitoring Service Engine instances and faults
- Oracle WebLogic Server monitoring
- OEM Cloud Control and the SOA Management Pack
- Summary
- 7. Configuration and Administration
- Navigating key administration areas
- Introduction to Change Center
- Configuring infrastructure properties
- Configuring and administering SOA composites
- Configuring and administering JCA adapters and binding components
- Administering BPEL process engine
- Administering the Mediator service engine
- Administering Oracle User Messaging Service
- Administering human workflow service engines
- Describing human workflow components and applications
- Managing workflow task configuration at runtime
- Managing human task service component address
- Seeding organizational users and groups
- Mapping users and groups to application roles
- Configuring multiple authentication providers for human workflow
- Migrating human workflow data from test to production
- Administering and configuring Event Engine and Business Events
- Administering domain values maps and cross-references
- Configuring infrastructure resources for developers
- Summary
- 8. Managing the Database
- Managing the dehydration store
- Managing metadata repository partitions
- Purging the metadata version history
- Summary
- 9. Troubleshooting the Oracle SOA Suite 12c Infrastructure
- The art of troubleshooting – where do you start?
- Troubleshooting infrastructure problems
- Extending logging
- Using logs
- An infrastructure error – StackOverflowError
- A composite instance error – SOAPFaultException
- An infrastructure error – DeploymentException
- A composite instance error – FabricInvocationException
- An infrastructure error – Unable to allocate additional threads
- An infrastructure or composite instance error – MDSException
- An OSB instance error – BEA-380000
- An infrastructure error – BeanInstantiationException
- An infrastructure error – unable to extend lob segment
- Using thread dumps
- Troubleshooting performance issues
- Troubleshooting SOA composite instances
- Troubleshooting OSB instances
- Using selective tracing
- Troubleshooting SOA deployment issues
- Troubleshooting OSB deployment issues
- Summary
- 10. Backup and Recovery
- 11. Introducing Oracle Enterprise Scheduler
- Discovering the ESS consoles
- Understanding ESS terminology
- Starting and stopping ESS
- Scheduling jobs
- Summary
- 12. Clustering and High Availability
- Architecture
- Downloading the software
- Installation prerequisites
- Installing Java and Infrastructure
- Installing Java and Infrastructure on MidTier
- Installing Java and Infrastructure on WebTier
- Running the Repository Creation Utility
- Creating a new domain
- Starting Node Manager in the Admin Server domain home
- Creating the boot.properties file
- Starting the Admin Server
- Creating a domain directory for managed servers on MidTier
- Starting Node Manager in the MidTier domain directory
- Modifying the Node Manager ports for MidTier
- Modifying the te directories to absolute paths
- Starting the WSM managed servers
- Configuring WebTier
- Installing Oracle SOA Suite
- Creating Oracle SOA Suite database schemas
- Configuring SOA schemas for transaction recovery
- Extending the domain with Oracle SOA Suite
- Configuring the default persistence store for transaction recovery
- Propagating the domain to the domain directories and machines
- Configuring Oracle HTTP Server for Oracle SOA Suite
- Configuring the WebLogic proxy plug-in
- Configuring the Oracle File Adapter for Oracle SOA Suite
- Configuring the Oracle FTP Adapter for Oracle SOA Suite
- Configuring the Oracle JMS Adapter for Oracle SOA Suite
- Installing Oracle Service Bus
- Installing Oracle Enterprise Scheduler
- URL References
- Startup and shutdown command reference
- Summary
- Index
As the metadata repository is usually maintained in a database, it would be necessary to purge unnecessary and archaic customizations made to composites that are no longer applicable. Purging is only required for database-based MDS repositories, as file-based repositories do not maintain composite version histories. Purging the metadata version history from a partition deletes all unlabeled documents from it, leaving only the tip version (the latest version) even if it is unlabeled. Purging the metadata version history on a regular basis is a necessary maintenance activity to control database size or when its performance starts to degrade. Purging an MDS repository is performance intensive and hence should either be attempted in a maintenance window or when the system is not busy. To use Fusion Middleware Control in order to purge the metadata version history, take the following steps:
- You can purge the version history of unlabeled documents from a partition that is older than a selected time period. On the navigator, expand SOA and then right-click on soa-infra.
- Navigate to Administration | MDS Configuration.
- The MDS Configuration dashboard page is displayed.
- In the Purge all unlabeled past versions that are older than field, enter a number and select the unit of time.
- Click on Purge.
- A progress box is displayed. When the operation completes, a completion box similar to Figure 8.10 is displayed.
- Click on the Close tab.
Figure 8.10. Confirmation of a successful metadata version purge
It is also possible to purge the metadata version history using the purgeMetadata() command in WLST. You can specify the documents to be purged using the olderThan parameter, specifying the number of seconds. The following example purges all documents that are older than 100 seconds:
purgeMetadata(application='soa-infra', server='soa_server1', olderThan=100)
-
No Comment
..................Content has been hidden....................
You can't read the all page of ebook, please click here login for view all page.