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Category Archives: Software
Flexible JDBC Realm for Glassfish
Approximately three years a go I started the development of a simple JDBC based security realm for Glassfish. The reason was that I was migrating from JBoss to glassfish and was running into problems with one application. That application simpy … Continue reading
Posted in Java, Software
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Move to Maven 3
Today I moved all my projects to maven 3. The claim is that maven 3 is downwards compatible with maven 2, but have a look at the compatibility notes. The issues I ran into were: Parent resolution: Parents are no … Continue reading
Posted in Java, Software
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New Server Setup is Complete!
Over the past weeks I have spent huge amounts of time in setting up the new server, making sure that I preserve the complete functionality that I had before. My aim was to take my old server (i.e. server installation) … Continue reading
Posted in Devops/Linux, Software
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Sticky 911! Making it easy to quickly and reliably boot your linux OS from USB or CD/DVD
I have been isolinux in the past to boot my server. In fact, it used to be the only way to boot it because somehow my BIOS did not recognize the RAID card. That problem was solved later by a … Continue reading
Posted in Devops/Linux, Software
2 Comments
Java? Java bien, merci!
This is how anyone’s first French lesson should start!
Posted in Java, Software
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Kernel Virtual Machine (KVM) Benchmark Results
General Approach Over the past week, I have been doing benchmarking on KVM performance. The reason for this is that I want to use KVM on my new server and need to know what the impact of KVM is on … Continue reading
Posted in Devops/Linux
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Benchmarking KVM continues…
After running quite a few tests with different configurations and doing also some manual testing, I am finding out that more or less the main factor in performance of KVM versus native is the disk IO. In particular, the schedulilng … Continue reading
Posted in Devops/Linux
1 Comment
Oh no, I’ve created a monster!
I have started to do benchmarking with virtual machines under opensuse 11.3 with KVM and had setup a number of different domains to run the same OS under different settings. Just one minor issue occurred which was that some domains … Continue reading
Posted in Devops/Linux
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Completed server upgrade
As preparation for the new server I am getting, I am preparing for that by at least getting the software to a more recent baseline. The idea is to first upgrade the software to the more recent versions while still … Continue reading
Posted in Devops/Linux
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Experimenting with KVM…
For the new server I want to use a virtualized setup and would like to split up the server into several independent parts. At least one VM dedicated to mythtv and I stil have to think about the rest. Anyway, … Continue reading
Posted in Devops/Linux, Software
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