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Enterprise Manager Feed

Oracle Enterprise Manager (OEM) and Oracle Enterprise Manager Ops Center resources, news, and support articles.

Sticky Upgrade Problem

When performing database upgrades, adequate testing is important to understand the impacts, both positive and negative, the database upgrade has on the application. I have been preparing to upgrade databases from the 11.2.0.3 version to 11.2.0.4. One weekend, myself and another DBA spent some time upgrading about half of our production databases to the new target version. First thing on Monday morning I got a call from a Developer who had a query that was now running slowly. Why did we upgrade just half of the dev databases? For this specific reason.

Result Cache

I was playing around with the Result Cache the other day…I know…this isn’t a new feature and has been available for awhile. Unfortunately, it can take a while to get to things I guess.
In my simple test, I had a query that exhibited this behaviour:

Strategies for Scalable, Smarter Monitoring using Oracle Enterprise Manager Cloud Control 12c

Of course you already noticed document “Strategies for Scalable, Smarter Monitoring  using Oracle Enterprise Manager Cloud Control 12c”, for those of you that didn’t you might want to check it out Strategies for Scalable, Smarter Monitoring  using Oracle Enterprise Manager Cloud Control 12c
 

Oracle Enterprise Manager 12c Wins 2 DBTA Readers’ Choice Awards

In the first annual 2014 Readers’ Choice Awards, Database Trends and Applications (DBTA) magazine announced that Oracle Enterprise Manager 12c has won two awards for “Best Database Administration Solution” and “

Big Data, Cloud Computing, and In Memory databases

Found this on Twitter today.
http://diginomica.com/2014/08/12/gartnerhypecycle/#.U-t6w2N98mR
Big Data has now entered the Trough of Disillusionment. Just ahead of it are In Memory databases. Cloud Computing is starting to come out of the trough on its way to the Slope of Enlightenment.

GI 12.1.0.2 Upgrade

The 12.1.0.2 patchset has been out for a bit now. I am just now finding time to be able to take my first look at it. I’m interested, like many others, in looking at the In Memory database option. But I need to upgrade my Grid Infrastructure before I can upgrade my database.
The upgrade went smoothly. The only thing I thought was odd was a prerequisite check failed on the panic_on_oops kernel parameter. I was upgrading from 12.1.0.1 to 12.1.0.2 so this is a brand new check. The OUI provided a fixup script which I ran and then proceeded without any other upgrade issues.

EM12c: End-User Monitoring for Oracle Fusion Middleware

When interested in End User monitoring you got to view this new video on the Oracle Learning Library: http://youtu.be/IQTPF86I7xA
Have fun….

Reducing Downtime While Patching Multi-OMS Environments

Enterprise Manager 12.1.0.4 has now been released for a few weeks, as well as the 12.1.0.4 OMS Bundle patches (also known as System patches). If you plan to apply these bundle patches to your 12.1.0.4 OMS, and you are concerned about the downtime, then, you can reduce the downtime by referring to this whitepaper that contains patching instructions to reduce downtime.

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