Category: 11gR1, 11gR2
September 23

Grid 2.0 – The Next Step for Real Application Clusters

Let me be clear, I am not a RAC guy, but while using the schedule builder this year, one presentation had a definite hint to the upcoming 11gR2 release. Bob Thorne, Director of Product Management (Oracle) gave an insight on Monday, into the new Grid 2.0, via his presentation called “Oracle Grid Computing 2.0: A Preview“:

Grid 2.0 will include a new grid infrastructure that dramatically extends the benefits of Oracle Grid Computing. This session covers this new infrastructure, which will greatly simplify the management of a cluster, propelling grid computing to a mainstream architecture. New quality-of-service capabilities will make meeting performance objectives in a shared infrastructure environment easy and automatic. The session also introduces exciting new storage management features that extend the benefits of Automatic Storage Management to all files.

His presentation gave insight in the upcoming new RAC infrastructure which had the following characteristics (as far as I can remember):

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September 5

XMLDB Performance: Binary XML Storage Models

This post will show you some of the first numbers I collected regarding “Loading XML data”, while making use of different XMLType “physical storage containers”.

I also have done some initial testing with Object Relational XMLType storage, but because this method of storage has many options and extra features, I won’t describe them yet here. This topic is interesting enough to earn its on post.

If you need some background on Oracle XMLType Storage option than have a read through the “Binary-, CLOB, Object Relational Storage” Category option in the menu, the Oracle XMLDB Developers Manual or a short intro via Oracle 11g – XMLType Storage Options.

After having created an environment as described in “XMLDB Performance: Environment, Set-up, Procedure“, the following results were gathered by me while keeping values constant, for example the values for “connection.xml“, as described in the “XMLDB Performance: Environment, Set-up, Procedure” . Only the WIKI_STAGE create statements are different.

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September 5

XMLDB Performance: Environment, Set-up, Procedure

There has some time past since my last update on my XMLDB Performance, tuning, adventure. As you maybe have read, I had my problems to set-up a decent test environment and loading XML data. I am testing with an Mediawiki XML dumpfile. If there is a problem or a side effect to notice than I have a big chance that it will show up if not only by the size of this Mediawiki XML dumpfile. The Mediawiki XML dumpfile contains, when I downloaded it, almost 8 million records and has a file size on Windows NT NFS of 17,4 Gigabyte.

Loading this data via the procedures described in my posts, “HOWTO: Load Really Big XML Files” and “Setting Up an XMLDB Performance “Baseline” Environment (Part 02)” dealt with some of the issues I encountered to realize controllable testing set-up. Loading this amount of XML data will take some time.

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