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Previous 30 Newer Entries Showing entries 31 to 48

Displaying posts with tag: suse (reset)

Drizzle Developer Day in Santa Clara
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Today I attended the Drizzle Developer Day which took place in the auditorium of the Sun Campus in Santa Clara.

Many of the the Drizzle core hackers as well as several other people interested in the development attended this event, hacking away and discussing various issues. Jeremy Zawodny gave a presentation about Craigslist's needs for Drizzle, Jay Pipes gave an overview over Google's protocol buffers library. I took a number of pictures, which you can find in my Flickr

  [Read more...]
Back from Solutions Linux 2009 in Paris, France
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On early Tuesday morning, I made a quick trip to Paris, France, to attend and speak at the Solutions Linux / Open Source 2009 Conference. I've never been to this conference before and was quite surprised about its size - it's actually the largest Open Source event in France and it reminded me a lot of LinuxTag in Germany. Many well-known vendors (e.g. Sun, Novell, Canonical, Bull, etc.) were exhibiting. The also was a large "DotOrg" section for various Open Source projects and I was very happy to see that LeMUG.fr, the official MySQL User Group of France, had a table there, too! A big Thank You goes to Pascal Borghino, who manned that table on his own most

  [Read more...]
Site is (almost) back...
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Sorry for the downtime of this site - until around a week ago I hosted my home page on a trusty Genesi Pegasos II system (powered by a PowerPC G4 Processor clocked at 1GHz, using Debian 4.0 PPC with 512 MB of RAM), serving these pages from my home DSL connection. Unfortunately this system provided no means of redundancy - the hard disk drive died.

Luckily I perform frequent backups, so I moved most parts of the site to a shared hosting space now - the picture gallery is unfortunately too big to fit into the space that I have there. I'll try to move the pictures into my Flickr account instead, but this will take some time.

Note that the primary domain name of this site is now lenzg.net - lenzg.org, (the domain

  [Read more...]
Updating from MySQL 5.0 to 5.1 - what's your experience?
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Now that MySQL 5.1 has finally been labeled and released as "GA", we have noticed quite a significant increase in the download numbers for 5.1. I find this quite promising, despite the comments from some people that suggested to stay away from it for now. I performed updates of 5.0 to 5.1 several times already, and did not observe any serious problem so far. But then again, I am by no means a power user, so your mileage may vary...

I assume that many of the users are already using some older versions of MySQL and will have to perform an upgrade from the previous version to the new one. As many things have been changed and improved between 5.0 and 5.1, an upgrade needs to be planned carefully. The MySQL reference manual has an

  [Read more...]
Updating from MySQL 5.0 to 5.1 - what's your experience?
Employee +0 Vote Up -0Vote Down

Now that MySQL 5.1 has finally been labeled and released as "GA", we have noticed quite a significant increase in the download numbers for 5.1. I find this quite promising, despite the comments from some people that suggested to stay away from it for now. I performed updates of 5.0 to 5.1 several times already, and did not observe any serious problem so far. But then again, I am by no means a power user, so your mileage may vary...

I assume that many of the users are already using some older versions of MySQL and will have to perform an upgrade from the previous version to the new one. As many things have been changed and improved between 5.0 and 5.1, an upgrade needs to be planned carefully. The MySQL reference manual has an

  [Read more...]
The Perfect Server - OpenSUSE 11.1
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The Perfect Server - OpenSUSE 11.1

This is a detailed description about how to set up an OpenSUSE 11.1 server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Dovecot POP3/IMAP, Quota, Firewall, etc. This tutorial is written for the 32-bit version of OpenSUSE 11.1, but should apply to the 64-bit version with very little modifications as well.

Recent additions to my openSUSE Build Service repository
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I recently added two new packages to my repository on the openSUSE Build Service:

  • Maatkit is a collection of essential command-line utilities for MySQL. Each is completely stand-alone, without dependencies other than core Perl and the DBI drivers needed to connect to MySQL, and doesn't need to be "installed" - you can just execute the scripts. This makes the tools easy to use on systems where you can't install anything extra, such as customer sites or ISPs.
  • protobuf - Protocol Buffers - Google's data interchange format. Protocol Buffers are a way of encoding structured data in an efficient yet extensible format. Google
  [Read more...]
Speaking about Bazaar and OpenSolaris at FrOSCon 2008 in St. Augustin, Germany
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While we're on the topic of Bazaar - this week I got informed by the organizers of the FrOSCon 2008 conference that they accepted two of my talk proposals: one session will be an introduction to this source code management system (what a coincidence), the other one will be an introduction to OpenSolaris for Linux users, explaining some of the underlying technologies and how they differ from what a seasoned Linux user may be accustomed to.

And no, I have not given up on using Linux - quite the contrary! I have been very impressed by the latest OpenSUSE 11.0 release and already run it for since quite some time on several of my work systems. In fact, I already

  [Read more...]
Suse 11: So far, so good
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After 4 good releases, Ubuntu let me down with 8.04. Maybe it was the timing - I upgraded my laptop as part of restoring it from a hard drive crash a few weeks ago - but isn't a brand new disk a good time to change your OS version? 


 On the upside, Hardy was the first OS I've installed where I opted to keep the default wallpaper (the bird is purty). And I'm pretty sure suspend (nVidia driver and all) was working better than previously, which is always good news. 


But I no longer had use of the VGA port for cloned or extended desktop, and I was unable to find a solution. That's a dealbreaker for anyone who needs to do frequent presentations (or, for that matter, uses their laptop as a primary workstation and has a > 15" monitor).


Worse, vpnc was, at best, squirrelly. I do quite a lot over VPN, and we still have two of them (Sun




  [Read more...]
Suse 11: So far, so good
Employee +0 Vote Up -0Vote Down

After 4 good releases, Ubuntu let me down with 8.04. Maybe it was the timing - I upgraded my laptop as part of restoring it from a hard drive crash a few weeks ago - but isn't a brand new disk a good time to change your OS version? 


 On the upside, Hardy was the first OS I've installed where I opted to keep the default wallpaper (the bird is purty). And I'm pretty sure suspend (nVidia driver and all) was working better than previously, which is always good news. 


But I no longer had use of the VGA port for cloned or extended desktop, and I was unable to find a solution. That's a dealbreaker for anyone who needs to do frequent presentations (or, for that matter, uses their laptop as a primary workstation and has a > 15" monitor).


Worse, vpnc was, at best, squirrelly. I do quite a lot over VPN, and we still have two of them (Sun




  [Read more...]
Suse 11: So far, so good
Employee +0 Vote Up -0Vote Down

After 4 good releases, Ubuntu let me down with 8.04. Maybe it was the timing - I upgraded my laptop as part of restoring it from a hard drive crash a few weeks ago - but isn't a brand new disk a good time to change your OS version? 


 On the upside, Hardy was the first OS I've installed where I opted to keep the default wallpaper (the bird is purty). And I'm pretty sure suspend (nVidia driver and all) was working better than previously, which is always good news. 


But I no longer had use of the VGA port for cloned or extended desktop, and I was unable to find a solution. That's a dealbreaker for anyone who needs to do frequent presentations (or, for that matter, uses their laptop as a primary workstation and has a > 15" monitor).


Worse, vpnc was, at best, squirrelly. I do quite a lot over VPN, and we still have two of them




  [Read more...]
Setting Up A MySQL Cluster
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This article contains my notes and detailed instructions on setting up a MySQL cluster. After reading it, you should have a good understanding of what a MySQL cluster is capable of, how and why it works, and how to set one of these bad boys up. Note that I'm primarily a developer, with an interest in systems administration but I think that every developer should be able to understand and set up a MySQL cluster, at least to make the dev environment more robust.

    Notes

  • In short, a MySQL cluster allows a user to set up a MySQL database shared between a number of machines. Here are some benefits:
    • High availability. If one or some of the machines go down, the cluster will stay up, as long as there is at least one copy of all data still present. The more redundant copies of data there are, the more machines you can afford to
  [Read more...]
Visiting FOSDEM in Brussels, 23/24 February
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Like in the years before, I (and some other colleagues from MySQL) will be attending FOSDEM 2008 in Brussels, Belgium on February 23rd and 24th.

The schedule is packed as usual and lists several MySQL-related topics and sessions:


  [Read more...]
Setting Up A MySQL Cluster
+0 Vote Up -0Vote Down

This article contains my notes and detailed instructions on setting up a MySQL cluster. After reading it, you should have a good understanding of what a MySQL cluster is capable of, how and why it works, and how to set one of these bad boys up. Note that I'm primarily a developer, with an interest in systems administration but I think that every developer should be able to understand and set up a MySQL cluster, at least to make the dev environment more robust.

    Notes

  • In short, a MySQL cluster allows a user to set up a MySQL database shared between a number of machines. Here are some benefits:
    • High availability. If one or some of the machines go down, the cluster will stay up, as long as there is at least one copy of all data still present. The more redundant copies of data there are, the more machines you can afford to
  [Read more...]
sysbench - Linux Test Bench
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sysbench - Linux test bench. Easy as pie to test CPU, memory, threads, mysql, and disk performance.

Full description is available here: http://sysbench.sourceforge.net/docs/

install mysql, mysql-devel
wget http://superb-west.dl.sourceforge.net/sourceforge/sysbench/sysbench-0.4.8.tar.gz
tar xvzf sysbench*gz
cd sysbench*
./configure && make install

mysql tests

This will run 10 separate consecutive mysql tests using an InnoDB table type, each with 100 mysql threads, doing a total of 1000 various SQL operations per test. Then it will print the total time they took to finish:

sysbench --test=oltp --mysql-user=USER --mysql-password=PASS --mysql-db=test \\
  --mysql-host='HOST' --mysql-table-engine=innodb prepare
 
time perl -e
  [Read more...]
Binary builds of MySQL Proxy available via the openSUSE build service
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In addition to the binary downloads that we provide from our site, Linux RPM builds of the MySQL Proxy (both the latest stable version as well as SVN snapshot releases, named mysql-proxy-snapshot) are now available for download from the server:/database repository of the openSUSE build service. It provides packages for a number of Linux distributions, e.g. Fedora 5/6, SLES 9/10 SuSE/openSUSE 10.x. By the way, this repository also contains RPMs of the current 5.0.45 MySQL Community Server for the distributions mentioned above. Thanks a lot to Darix for the initial checkin of the proxy package!

 

SUSE Linux 10.1 "vorkon" - SUSE Linux as it's supposed to be?
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Yesterday I received a sample copy of the "SUSE Linux 10.1 OSS - vorkon" DVD, which was assembled by Nicolaus Millin. While I have not installed it yet (as I by now have a very well running installation of SUSE Linux 10.1 on my laptop), the content of the DVD sounds very promising. In addition to incorporating all the updates that have been published since SUSE Linux 10.1 was released (around 100), this version also includes additional drivers like the 3D graphics drivers from ATI and nVidia, network card drivers like ndiswrapper, madwifi and rt2500 as well as drivers for AVM products and Logitech QuickCams. So the base system  [Read more...]
FOSDEM writeup
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I had an exciting weekend at the FOSDEM Conference in Brussels. Initially I planned on writing a few blog entries while at the event (while memory was still fresh), but the Internet access there was very flaky and it was almost impossible to get a working wireless connection. So here is my (slighly belated) writeup.
Continue reading "FOSDEM writeup"
Previous 30 Newer Entries Showing entries 31 to 48

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