This is going to be a “KISS”, (Keep it Simple, Silly) post. I was offered a second Windows cluster to test on when my original one was required for QA. It was a gracious offer, but I also found out why a cluster should be kept simple and this cluster was anything but simple. Many times, issues are created and we’ll never see them coming until we go through the pain and (more...)
I believe you do your best when you follow in what you believe.
#ALSIceBucketChallenge …. Hold the ice…:)
When installing Enterprise Manager 12c, the host value can come from a number of places for different applications/tiers. For most, it comes from the environment variable $ORACLE_HOSTNAME, (for Windows Servers, %ORACLE_HOSTNAME%).
The OHS1 target, aka Oracle Apache in the middle tier of the EM12c environment pulls it’s value from the etc/hosts file, (for Unix as well as Windows) and so it is vulnerable with a virtual host name or host name change occurs. (more...)
As much as KSCOPE 14 fixed any and all Low-T levels, it couldn’t do anything for our the WiFi problems we were experiencing back in May. I’ve been a telecommuter for almost 4 straight years now and was quite frustrated when our WiFi service became dismal back then.
We called Comcast service and worked through trouble-shooting with their support multiple times, only afterward, still unable to download files or watch Netflix into the first three (more...)
This post is to address a failed Weblogic start in EM12c. The fix is performed on a Windows host, but the fix can easily be for any EM12c environment that experiences this issue. In the below instructions, just replace the %OMS_BASE% for Windows Env Var to $OMS_BASE for Linux/Unix.
Issue: OMS Fails to Start and Points to Weblogic Issue in EMGC_OMS1.out File.
Error in Out File: <Critical> <WebLogicServer> <BEA-000386> <Server subsystem (more...)
I know, I know- none of you are using Microsoft Windows. This is why I get so many questions on this topic and why there is so much interest in a white paper that no one thought I needed to write. Well, while that pesky ol’ white paper is in review, I’m going to go onto a secondary topic of how to monitor a Microsoft Active/Passive cluster with Enterprise Manager 12c, release 4.
When concurrency is the crippling factor in a database performance issue, often I’m told that viewing blocked sessions in Enterprise Manager is difficult. The query behind, along with flash image generation in any Enterprise Manager can take considerable time to render and no matter how valuable the view is, the wait is something DBAs just can’t hold out for when needing the answer now.
Blocking Sessions View in OEM
If you’re wondering which feature (more...)
So the AWR Warehouse patches are out, but documentation has not officially caught up to it yet, so as we appreciate your patience. I thought I would post about what I went over in my webinar last week when I had the wonderful opportunity to speak to the ODTUG members on this feature that everyone is so anxious to get their hands on.
Let’s start with some of the top questions:
1. Can I (more...)
The webinar is over, but you haven’t missed out on everything I presented on the console feature, under the hood and behind the scenes!
Thanks to everyone who attended and a big thanks to GP for doing the introduction and ODTUG for hosting us!
We went over a few of the Java “tuning” options last time, so let’s go onto the OMS tier for this post.
Location, Location, Location
High latency issues between the OMS(Service) and the OMR, (Repository) when separated by geographical location is common. It’s important when designing the Enterprise Manager environment that you keep your OMS hosts close to the repository hosts geo-locationally. Your agents can be global, with minor network considerations, but the (more...)