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Displaying posts with tag: server (reset)
Kontrollbase rev292 gets important UI layout fixes

This is a small revision and will only be available through SVN. However, it is an important one to speak about as it solves a former issue when running the application on a screen smaller than 1024px wide. While most users may not have noticed this since they have larger monitors it has been noticed [...]

Linux MySQL distros meeting in Brussels

When I saw Shlomi's post on why not to use apt-get or yum for MySQL, I thought immediately that his conclusions are quite reasonable. What you get from the Linux distributions is not the same thing that you find in the official MySQL downloads page. Now, whether you value more the completeness of the server or the ease of administration through the distribution installation tools, it's up to you and your business goals. We at the MySQL team have organized a meeting with the Linux distributions with the intent of finding out which differences and problems we may have with each other, and to solve them by improving communication. What follows is a summary of what happened in Brussels during the meeting.

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Advanced analytics report added to Kontrollbase CLI-reporter

It didn’t take long, but the advanced analytics reporting code has been added to the command line reporter version of Kontrollbase. Click here to see an example of the tuning and analytics report output (html format). Now you have all of the reporting features (minus the growth over time) features that are offered in the [...]

Shooting with Crossbows into Zones

Ok, so this site (and some other stuff) is now running on OpenSolaris. The previous previous article was mostly a test entry for me to see whether the DNS update was through but as some people wonder why I'm using this system that "fails while trying to copy Linux" I decided to discuss some of the reasons in more detail.

Some people already know that my main system meanwhile runs OpenSolaris. The reason there is DTrace - a great way to see what the system, from the kernel, over userspaces programs, into a VM like the JVM or PHP's Zend VM, ... is doing which is a big help while debugging and developing applications. Even though DTrace is meant to do such analysis on live machines this wasn't the main …

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Performance measurement

In my last post, I mentioned the factors that affect web performance. Now that we know what we need to measure, we come to the harder problem of figuring out how to measure each of them. There are different methods depending on how much control you have over the system and the environment it runs in. Additionally, measuring performance in a test setup may not show you what real users experience, however it does give you a good baseline to compare subsequent tests against.
Web, application and database serversBack end servers are the easiest to measure because we generally have full control over the system and the environment it runs in. The set up is also largely the same in a test and production environment, and by replaying HTTP logs, it's possible to simulate real user interactions with the server.

Some of the tools one can use to …

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Comparison Between Solr And Sphinx Search Servers (Solr Vs Sphinx – Fight!)

In the past few weeks I've been implementing advanced search at Plaxo, working quite closely with Solr enterprise search server. Today, I saw this relatively detailed comparison between Solr and its main competitor Sphinx (full credit goes to StackOverflow user mausch who had been using Solr for the past 2 years). For those still confused, Solr and Sphinx are similar to MySQL FULLTEXT search, or for those even more confused, think Google (yeah, this is a bit of a stretch, I know).

Similarities

  • Both Solr and Sphinx satisfy all of your requirements. They're fast and designed to index and search large bodies of data efficiently.
  • Both have a long list of high-traffic sites …
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Connection Pool Problems for MySQL/GlassFish/OpenSolaris

Hi all,

Last night I spent some time setting up a connection pool in GlassFish's admin console. Here's the backstory: I'm working on a training course for cloud computing, and as part of my module on assembling a virtual data center I ran into a few problems. I have two virtual servers running. One is running OpenSolaris and has GlassFish application server installed on it. The other is running Fedora Linux and has my MySQL database on it. The problems occurred when I tried to ping the database server from GlassFish. I got some strange messages. When a colleague of mine googled the problem, he found out that the problem was OpenSolaris specific. After downloading several .jar files the error message said weren't there, I stumbled upon the solution:

  1. The solution was to copy my regular MySQL driver .jar file from my local machine to the glassfish-install/domains/domain1/lib/ext/ directory on my virtual …
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Connection Pool Problems for MySQL/GlassFish/OpenSolaris

Hi all,

Last night I spent some time setting up a connection pool in GlassFish's admin console. Here's the backstory: I'm working on a training course for cloud computing, and as part of my module on assembling a virtual data center I ran into a few problems. I have two virtual servers running. One is running OpenSolaris and has GlassFish application server installed on it. The other is running Fedora Linux and has my MySQL database on it. The problems occurred when I tried to ping the database server from GlassFish. I got some strange messages. When a colleague of mine googled the problem, he found out that the problem was OpenSolaris specific. After downloading several .jar files the error message said weren't there, I stumbled upon the solution:

  1. The solution was to copy my regular MySQL driver .jar file from my local machine to the glassfish-install/domains/domain1/lib/ext/ directory on my virtual …
[Read more]
MySQL Server binaries: one source to rule them all

If you missed Kaj's announcement in the splashing news commotion at the latest MySQL Conference, then you may be interested to get this information again.

There was a piece of news that should be extremely important for all the users. MySQL server binaries used to be split between Enterprise and Community, and they were released with separate schedules. Not anymore. Starting from April 2009, the MySQL Community and Enterprise editions are built from the same code, and they are released with the same frequency.

There were rumors …

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AWS Experience Part 6: Creating a Custom AMI

Hi all,

Here is another installment on working in the cloud, the AWS cloud that is. Today's topic: creating a custom AMI. This may sound like as easy task. And it would have been, had AWS documentation been up to scratch. I spent lots of time messing around with this, and I finally got it to work. Here's how:

  1. Launch an exiting image (I chose a Fedora 8 image). Modify the /var/www/html/index.html file to something else (thus making it "your unique AMI). I went one step further: I installed JDK 6 and MySQL on mi AMI for use at a later date.
  2. Now you have to upload your private key and x509 certificate to the AMI. Here's how to do this in the terminal:
    scp -i ~/.ssh/<yourkeypair.pem> ~/.ec2/<pk-whatever.pem> ~/.ec2/<cert-whatever.pem> root@your-public-DNS:/mnt.
    
    The private key and x-509 certificate should be uploaded to the mnt directory to prevent them from being bundled with the …
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