Tag: Oracle

Comparing Hadoop Appliances

At this time there are three Hadoop appliances in the market:Oracle’s Big Data appliance, Netapp’s Hadooplers and EMC’s Greenplum DCA. It looks like a lot of companies that did not already adopt Hadoop in 2011, are looking to do so in 2012, and some of them may be considering going with an appliance. I want to take a look at some of the reasons a company will be interested in a Hadoop appliance, and what are the differences between the different appliances.

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R12.2 online patching – What are the hidden costs?

I attended a great presentation at UKOUG 2011, “Oracle E-business Suite’s use of edition-based redefinition for online patching,” delivered by Bryn Llewellyn from Oracle. The presentation provided thorough insight on how EBR works and how E-Business Suite will be able to use it for online patching. It answered many questions, but raised a few more questions and concerns. I’ll try to summarize in this post the main concerns I’ve been thinking about after attending this presentation.

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Log Buffer #253, A Carnival of the Vanities for DBAs

A very very Happy New Year 2012 to all of you. These are the festive and jubilant times when people look back on previous years and make plans for their new year and beyond. Well, this Log Buffer Edition is no different. This week covers the new year posts of the bloggers across the database arena in Log Buffer #253.

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Introducing the Quarterly Database Patch for Exadata

Hot on the heels of 11.2.0.3 coming out for Exadata, there’s yet another Exadata patch schedule out: the Quarterly Database Patch for Exadata (QDPE). They’re designed to being some of the predictability of Oracle’s quarterly critical patch updates (CPU) to the Exadata world.

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Oracle 11.2.0.3 is Now Available for Exadata

Since Oracle 11.2.0.3 came out last September, there have been questions about Exadata availability. As of today, the patchset is now available.
Reviewing the upgrade document (MOS note 1373255.1) a few things that jumped out at me, here they are.

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Log Buffer #252, A Carnival of the Vanities for DBAs

As we all look forward eagerly to 2012, bloggers around the gblobe are writing about their insightful reflections on 2011. You’re also welcome to write your’s regarding to database arena in the comments, if you like. This Log Buffer Edition welcomes you to the new year with festive posts from Oracle, SQL Server and MySQL bloggers in Log Buffer #252.

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Oracle Instance Memory Usage

How much memory does my Oracle instance use? How much memory do my database connections use? These are questions that can help with capacity planning of your server’s Physical and Virtual memory. There are several write ups out there on the web that attempt to address these questions. From what I could gather from them, there is only one truly good way to tell exactly how much memory is currently in use by an oracle instance, as well as the average memory usage for oracle dedicated connection processes. I explain it here.

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Log Buffer #251, A Carnival of the Vanities for DBAs

ew Year is the time to bid farewell to the old year and welcome the coming year. It is the time to remember the golden olden blog posts. It is the time for new beginnings and new starts in life, and of course for new blog posts. Bloggers in the database arena are also enjoying the festivities with full zeal and zest and this Log Buffer Edition, which is Log Buffer #251 covers just that. Happy Holidays.

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Log Buffer #250, A Carnival of the Vanities for DBAs

Tis the season to be fearless in blogging and read the blogs around the database globe. To make your foray in intrepid world of database blogs, this Log Buffer Edition compiles some of the most interesting posts in this Log Buffer #250.

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UKOUG 2011 Conference OakTable Sunday by Alex Gorbachev

This year, there were ten Pythian folks attending UKOUG Conference and we did twelve sessions including multiple presentations, masterclass, RAC Attack workshop, round-table and 10 minutes OakTalk. I think it’s the record number of session Pythian folks did at a single UKOUG conference and the record number of Pythian peeps attending. A dozen of Pythian people in Europe and now even a sales guy in the UK mean that Pythian penetration in the UK database services business is close to the infliction point. This is ultimately a good news!

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