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PaaS Partner Community

  • April 11, 2016

Tuning the Purging Strategy; Oracle SOA Suite Metadata Repository Performance Management by Martijn van der Kamp

Juergen Kress
PaaS Partner Adoption

clip_image002My colleague, Paul Wever, wrote an excellent blog about turning the MDS to increase performance. Purging is something we do at almost all our customers. Paul provides excellent tips, tricks and insights to increase the performance.
In my job as system administrator/DBA, projects related to Oracle’s SOA Suite I put a lot of emphasis on configuration of the environment, like the OS, the Oracle database, WebLogic, OSB, and other products. Part of the Oracle SOA Suite is the Oracle Metadata Repository, where all metadata and run-time data of applications is stored. This repository is often forgotten in performance management, but deserves special attention when dealing with performance improvements.
This blog is part of a series of blogs around Oracle SOA Suite Metadata Repository Performance Management. In this blog we will show how a performance gain of factor more than 100 was achieved while purging the Metadata Repository.
Terminology
Oracle Metadata Repository
Oracle Metadata Repository is an Oracle database that contains additional schemas to support Oracle Fusion Middleware and its components, for design and run-time management of the applications. Oracle SOA Suite mainly uses two components:

  • The Metadata Store (MDS) to store all SCA artifacts
  • The Dehydration Store (SOAINFRA) to persist composite instances and to audit composite instance

Case
Investigating performance issues around purging the Oracle Metadata Repository, I stumbled over the following delete statement that was executed during purging the Oracle Metadata Repository: Read the complete article here.

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