Re: Oracle Grid... ahem Cloud Control 12c
Date: Fri, 21 Oct 2011 12:47:58 -0700 (PDT)
Message-ID: <1319226478.45053.YahooMailNeo_at_web121010.mail.ne1.yahoo.com>
I won't lie- the 11g upgrade project and any chance of getting a new production server for the EM, let alone getting to go to the 12c version came from a combination of a directional change in the management team and the business tired of seeing me sitting down in their office to tell them that we were working around another bug, (it does pay off to whine a lot about how much they would save in time and money to just let us upgrade instead of spend our time on bugs...) I'm an all Redhat environment, so no issue with platform availability here... I do monitor log and trace files through the EM and report errors. We've never had any issue with it in quite some time, but I do remember having to mess around with the search criteria in the metrics a bit when I first upgraded to 10.2.0.5.
We also have a secondary database schema that has enhanced notification/escalation, along with monitoring capabilities that supersedes the built-ins of EM, utilized by our 10g EM. Our DBA team, the four Oracle DBA's, (I'm multi-platform, so I work in Oracle primarily, along with SQL Server and then am the backup for the MySQL primary DBA, too...) are on-call during the day, then weekday evenings and weekends are sent first to an on-call DBA service, only escalating to us if the issue is not addressed after a certain amount of time or if the severity demands it. This secondary schema has the complex code and rules to understand this over what we could find in the built-in's for Enterprise Manager. Considering the work and the knowledge that is already in place for this code, we want to push the EM12c environment to use this, too. I'll keep my blog up to date on how that goes, (cross your fingers!)
I was able to sell the upgrade for mulitple reasons though- I was hitting into a number of bugs in the 10.2.0.5 version. As the OMS's Apache would clear and refresh sessions, it wouldn't be able to do so quickly enough and suffer errors, causing folks to receive 404 errors in the browser pages. Restarting the OMS causes the java callback bugs/errors and initialization failures on the first try, (2nd try is successful.) This is just annoying. The server the OMS and EM reside on are quite old, so I'm going to upgrade, decommission, move my Apex environment to the same db server that it interacts with for distributed transactions anyway, allowing me to also eliminate one Oracle license ,which will save the company a little bit of money, too! :)
Kellyn Pot'Vin
Sr. Database Administrator and Developer
DBAKevlar.com
From: Rich Jesse <rjoralist2_at_society.servebeer.com> To: "oracle-l_at_freelists.org" <oracle-l_at_freelists.org> Sent: Friday, October 21, 2011 1:03 PM
Subject: Re: Oracle Grid... ahem Cloud Control 12c
Kellyn writes:
> Just want to say- installed, configured EM12c on my new production server,
> auto deployed to my testing targets in parallel with my existing EM 10g
> environment. Love the solid documentation, the little to no issues during
> installation/auto agent deployment app, LOVE the SQL Monitoring interface
> and some of the new features I've discovered so far....
Color me jealous. It looks like I'll be stopping at 10.2.0.5 for now. As a previous poster mentioned, there's a shortage of available platforms supported for Agents. Coupled with a Java failure in the operation of the EM link created by Preupgade Console Patch, and I'm not going to be hitting 12c anytime soon. :(
> I have the other DBA's in testing it out with three main developers who need
> to monitor what they do in dev/test. They seem quite impressed so far with
> the new features I've showed them and are quickly coming up to speed with
> the changes to the GUI vs. the 10g version.
Do you monitor the log and trace files for errors? I had to stop monitoring them in 10g for all the Java errors, but I regularly get several others. I was hoping that would be improved in 12c...
Rich
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