XTIVIA BLOG
Making SASS Linear Gradient Mixins Behave in IE
A very large gift given to us user interface developers in Liferay 6.1 is the inclusion of SASS support. One of the many ways SASS comes in handy is handling prefixed CSS rules – instead of having to specify each rule every time you, say, want to declare a gradient, you can...
The Great Performance Chase with Informix
We all worry about the performance of our servers. It is what separates the DBAs from the pretenders. You just never know just what setting will be the one that makes the big difference. The worst part is that the setting that works today may hinder or not even matter...
How to Start SQL Server if You Lost TEMPDB Data files
Recently we migrated one of our client's SQL Server instances to a new server. During the migration we had moved the storage to the new server so the old server didn't have some of the disk drives that were previously mounted on it. After the migration the client requested that...
ORA-01105: Mount is incompatible with mounts by other instances
I recently came across an issue in a 2 node RAC, Oracle 11gR2 environment for one of our Virtual-DBA clients. The client dba had created a new spfile and placed it in ASM for node 1 and then tried to restart the instance using srvctl. The instance would not...
SQL Server 2005/2008: Deadlock while changing database to MULTI_USER mode
Msg 1205, Level 13, State 68, Line 10 Transaction (Process ID 79) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction. Msg 5069, Level 16, State 1, Line 10 ALTER DATABASE statement failed. On a...
Using the SC cmd to Remove Orphaned/Hosed up Oracle Services from Window OS
Have you ever had a situation where Oracle database software or services have not been uninstalled properly or completely on a Windows OS? Well this happens more often that we would like. The options left to us at this point are either painstaking editing of the OS registry or...
Oracle Database Corruption ORA-00600
The other day our monitoring system had thrown a couple of alerts for a client. It was reporting there were errors in the client’s alertlog. I logged in and checked the alertlog and sure enough there were multiple dreadred ORA-00600 errors being reported in the alertlog. The...
Annotation driven spring – xml based myBatis configuration
MyBatis is one of the top notch ORM tools available. The MyBatis data mapper framework makes it easier to use a relational database with object-oriented applications. If you are familiar with SQL, the learning curve for myBatis is pretty much zero. If you want complete control...
Introducing monitoring applications: JAMon
There are many tools for monitoring applications. One that we may want to use is JAMon, the Java Application Monitor; it can be really useful for discovering what the hell is going on in our application. We are going to view a quick introduce in it. But first, a little words...
Converting Liferay Web Content Articles to PDFs without OpenOffice
Liferay has out-of-the-box OpenOffice integration which is robust and works very well for converting web content to a variety of document formats, including PDF. However, this approach requires you to have a separate OpenOffice server running, which may not be desired or...