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{ Tag Archives } Sysadmin

Spring WS, Tomcat 6, Java 6 - Problems & A Simple Solution

I’ve been working on a project using Spring WS recently. During development I run/test webapps using the Maven Jetty plugin. All was well, everythings works as expected, and I was at a stage where I needed to deploy on a Tomcat 6 server for some larger scale testing. In the past I have had no [...]

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200+ Days Uptime

I just noticed that my server has been up for over 200 days. I’m pretty sure that’s the longest it’s ever been up continuously. Most of the reboots have been for upgrades (or a hosting move) but there have been some problems along the way.
The box is now handling around 10GB of traffic every month, [...]

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Lots Of Upgrades!

After putting off upgrades on omicron for ages (I was busy), this week I finally found the time. So, I’m now running:

Apache 2.2.8
Tomcat 6.0.16
MySQL 5.0.54
Subversion 1.4.6

Woo yeah for them all running smoothly! I was especially happy that converting my Tomcat 5.5 configuration to 6.0 was easy.
As a bonus upgrade, I’ve switched the theme on my [...]

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VM Upgrades

So, yesterday evening bytemark finally got around to upgrading the host machine for my VM server. The upgrade itself went smoothly, so I now have 300MB of memory and 20GB of disc space (at no extra cost). Woo for me
I did however have some problems getting the server to come back online again [...]

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Apache 2.2 Upgrade on Gentoo

I found the time today to upgrade apache on my server to version 2.2. The upgrade appeared in ‘emerge -Dpu world’ a few weeks ago (IIRC), but I’d been putting off until I had the time to deal with it properly. Not much drama in the end, but I did have couple of issues. Here’s [...]

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Tomcat Configuration Tweaks

I am in the process of setting up a Tomcat based hosting on omicron (in addition to the apache vhosts it does now). Having been burned before by unexpected traffic, I’ve begun by looking at the Tomcat server configuration, before attempting to ‘join’ it to apache. The first potential problems points which sprung to mind [...]

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Convert Apache Logs From Common To Combined Format

Apache logs come in two (main) formats - common and combined. The common logs contain only the IP address or hostname of the client, the URL requested, and the HTTP status code. The combined logs contain additional information like browser, operating system and referrers. The combined log therefore allow for more detailed statistics to be [...]

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Apache/MySQL Performance Tweaks For VM Server

As a result of the recent downtime the digging caused I started investigating ways to improve the performance of my server by tweaking Wordpress, Apache and MySQL.
First, a bit of background. I’m running Gentoo Linux on low spec UML instance hosted at Bytemark. My machine has a mere 160MB of memory, so this clearly going [...]

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Server Downtime, Or Digg Killed My Server!

Yesterday one of the sites hosted on my server hit the digg front page. It wasn’t one of my posts, but one from a good friend (nice one Jonny!). Anyway, the massive surge in traffic caused some issues…

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Small Victories

I ran out of disc space on my /usr partition today. Note to self, 5GB is not enough for /usr… I was slightly annoyed, as it ran out while I was installing some Java libs I needed for work. I stopped for a coffee and had a thought. “Did I use LVM last time I [...]

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