Oracle RAC Performance Tuning
I am proud to announce that my book is now available for purchase! Please order Oracle RAC Performance Tuning today!...
View ArticleGWFG in Oracle RAC
I have a deadlock being reported in my 3-node Oracle RAC database (version 11.2.0.4) as can be seen in the Alert Log. Being that this is an Oracle RAC database, resources are managed globally and the...
View ArticleEM12c Now Allows DB12c for Repos
It is now possible to use Oracle 12c as a repository database for Enterprise Manager 12c Cloud Control. Oracle 12c is almost 2 years old and the first patch set is almost 1 year old. So its about time...
View ArticleSQL Server Missing Log File
We recently had one of our SQL Server instances experience a very large volume of change. Not suprisingly, the transaction log grew really big and was very close to filling up the disk. I had our...
View ArticleOracle RAC on my Laptop with Virtual Box
This really isn’t a new topic. I’m not first one to publish something like this. But I had a need to get these instructions posted on my blog. So here is how I created a two-node Oracle RAC testbed on...
View ArticleSQL Developer 4.1 Released
SQL Developer 4.1 was released on Monday. Here is the link to download the latest/greatest version. ThatJeffSmith has a nice recap of the new features on his blog. I like the new formatting options...
View ArticleSEC_CASE_SENSITIVE_LOGON Deprecated in 12c
I’m working on getting my companies databases upgraded to Oracle 12.1.0.2 before our 11.2.0.4 databases lose free Extended Support in Jan 2016. One of the “gotchas” for us is that the...
View ArticleProper Tools Make Tuning Fast Work
I am starting to write articles for publishing on SearchOracle.com. I have been loosely affiliated with them since 2001, mostly in their Ask The Experts section. My first article is on the benefits...
View ArticleSQL Monitoring in SQL Developer
In my last article for SearchOracle (referenced in my last post to this blog) I showed an example of how I quickly got to the root cause of a poor performing query using SQL Monitoring in Enterprise...
View ArticleSCP Client on Windows
Most of my Oracle databases run on Linux. And prior to that, one form of Unix or another. I’ve grown quite accustomed to using scp to quickly transfer a file between systems. While my databases may...
View ArticleOracle Certifications
I ran into a question on the forums today asking how to obtain certification information. Oracle includes this if you have a paid support contract. This blog post will show how to see certification...
View ArticleWhich Linux Partition?
I’m trying to upgrade a system’s Grid Infrastucture to the latest/greatest version. The OUI says that I need 7GB of free space and I’m a little short. This is on virtual machines so we can grow the...
View ArticleADDM on SearchOracle.com
Here is another article I wrote for SearchOracle.com in case you missed it. This one focuses on how to use ADDM to quickly diagnose a performance problem....
View ArticleTNS-12519 w/o Max Processes Reached
I got a call from someone that they were getting TNS-12519 errors in their application. Sure enough, those messages were in the listener.log file as well. TNS-12519: TNS:no appropriate service handler...
View ArticleWho is using my swap space?
Most of the time, I post entries in this blog to share knowledge with others. Sometimes, I post an entry so that in the future, I can quickly find an answer to something I know I forgot. This is one of...
View ArticleWeb Site Down and Twitter Feed
My web site was down for the last 4 days. My apologies. I had to spend a lot of time going back and forth between my ISP and my domain registrar. But it seems to be sorted out now. So the good news,...
View ArticleLighty for Oracle
Not that long ago, I was pointed in the direction of Lighty for Oracle by orachrome. This is a wonderful performance tuning tool. I’m still using the 30 day trial and I hope to get my company to...
View ArticleLighty In A Nutshell
As you may know from a previous post on this blog, or if you follow me on Twitter (BPeaslandDBA), I like Lighty for Oracle, a product by Orachrome. I love this product and how easy it is to obtain...
View ArticleThe Data Guardian
This morning, I was reading this article about employees lack of understanding how critical it is to protect business data. The article got me to think about a few different points. As a DBA, I’ve...
View ArticleRemember RAC Instances in Perf Tools
I was using Lighty to examine performance of a new Oracle RAC database that went into service today. You can see something similar in Oracle Enterprise Manager 12c Cloud Control if you choose. Anyway,...
View Article