Showing entries 91 to 100 of 131
« 10 Newer Entries | 10 Older Entries »
Displaying posts with tag: centos (reset)
How popular is an Open Source project ?

There is a really easy way to figure out ...

Look at the size of of the devrooms , if at all , a project gets at Fosdem
It's really interresting to see the Embedded room move to a 500 seat room which it really needed when the first openMoko talk was held there in a previous edition.

The FDO , Drupal, Mozilla, Centos/Fedora and Suse rooms stay in similar size rooms as last year.. But it seems lik the BSD and PostgreSQL room which was pretty crowded moved to a bigger location.

The Ruby room also seems to move to a bigger room. Fosdem has a couple of new rooms too it seems this freed up room for new groups such as the MySQL Crowd

Obviously these sizes aren't a real match to the size of a community, as the new rooms might need (and probably will need) a reshuffle for next year ;)

[Read more]
ZRM 2.1: Backing Up MySQL Partitioned Tables

ZRM 2.1: Backing Up MySQL Partitioned Tables

MySQL 5.1 is generally available for production use. One of the key features of MySQL 5.1 is partitioning. This how to shows how to install and configure Zmanda Recovery Manager for MySQL (ZRM) 2.1 to perform backup and recovery of MySQL partitioned tables.

Server Monitoring With munin And monit On CentOS 5.2

Server Monitoring With munin And monit On CentOS 5.2

In this article I will describe how you can monitor your CentOS 5.2 server with munin and monit. munin produces nifty little graphics about nearly every aspect of your server (load average, memory usage, CPU usage, MySQL throughput, eth0 traffic, etc.) without much configuration, whereas monit checks the availability of services like Apache, MySQL, Postfix and takes the appropriate action such as a restart if it finds a service is not behaving as expected. The combination of the two gives you full monitoring: graphics that lets you recognize current or upcoming problems (like "We need a bigger server soon, our load average is increasing rapidly."), and a watchdog that ensures the availability of the monitored services.

451 CAOS Links 2008.11.21

Sun updates MySQL Enterprise. The Microsoft/Novell deal is two years old. Nuxeo and Boxee get funding. Red Hat’s CEO on open source in a downturn. Steve Ballmer as a glove puppet. And more.

Press releases
Sun Enhances MySQL Enterprise With New Query Analyzer Tool to Boost Database Application Performance Sun Microsystems

Microsoft and Novell Mark Two Years of Interoperability Progress Microsoft

Nuxeo secures 2 million Euros and strengthens its board of directors and corporate governance Nuxeo

[Read more]
Let the customer choose where to buy lunch from !

Matt Asay is pushing his favorite Open Source model again. The model where the majority of developers of a project work for a company and that company is creating a business around the project. There's nothing wrong with that model, but he seems to forget the other models time over time :)

Matt is absolutely right with 2 of the 3 things he wants you to consider.
A SI in the middle of a $50 million dollar project involving Alfresco not talking to Alfresco is just wrong. An SI not offering a support contract is also just wrong. But an SI forcing his customer to buy the commercially supported version from a vendor ? Where's the customer choice ?

The customer should have the option to choose for a commercially supported version or the free version. And preferably that should be an educated option.

Matt seems to forget about situations where …

[Read more]
sshfs: How do you install sshfs and fuse? [CentOS/Linux/Redhat]

One may wonder what is sshfs and why would you want it?  Well simply put, sshfs allows you to mount another server’s filesystem into a folder on your local system which in the background is doing ssh commands and transfers.  As a mounted folder, you are able to move about and copy files back and forth as everything was on local server.  As you can see this makes it very easy for you to work with files on multiple servers.

Note:  you only have to do the following installations on the server where you are doing the mounts on.

Let us download and install the filesystem framework which is a requirement for sshfs called fuse.

wget http://voxel.dl.sourceforge.net/sourceforge/fuse/fuse-2.7.4.tar.gz
tar zxpfv fuse-*.gz
cd fuse*
./configure

If you get the following error, you will either have to point to the location of the kernel source or …

[Read more]
This should *never* happen!

While playing around with the great MySQL Activity Reporter , I ran into the following error.

[client 192.168.254.72] PHP Fatal error: strftime() [function.strftime]: Timezone database is corrupt - this should *never* happen! in /var/lib/mysqlard/mysqlar.php on line 62

Now the error is clear .. the Timezone database is corrupt and I`m the one to blame for .. this was on a pretty stripped down Centos that lives in UTC. So there wasn't a real Timezone database.

Obviously a quick apt-get install tzdata solved the problem, but once again the lesson is.. don't strip too much .. you'll eventually endup needing those 3 Kb of free space you gained anyhow.

This should *never* happen!

While playing around with the great MySQL Activity Reporter , I ran into the following error.

[client 192.168.254.72] PHP Fatal error: strftime() [function.strftime]: Timezone database is corrupt - this should *never* happen! in /var/lib/mysqlard/mysqlar.php on line 62

Now the error is clear .. the Timezone database is corrupt and I`m the one to blame for .. this was on a pretty stripped down Centos that lives in UTC. So there wasn't a real Timezone database.

Obviously a quick apt-get install tzdata solved the problem, but once again the lesson is.. don't strip too much .. you'll eventually endup needing those 3 Kb of free space you gained anyhow.

Linux: How do you find out what your server’s outgoing ip is?

There are many times when I needed to find out my outgoing (or external) IP for the servers which are behind load balancers or firewalls.  I used to just login to another external server from the server in question and find out by looking at “who” what my external ip is.  Even though it works and I am so used to it, today I decided to figure out a more graceful way of finding my outgoing ip.  As most of us already know, whatismyip.com is the quickest way to find out your outgoing ip from the browser.  So I decided to use the same way on the servers.  So I issued a wget:

wget http://www.whatismyip.org

Well that does the trick.  But being lazy as I am, I did not want to have to cat the output file to find out the ip (plus there is no point of creating extra files and doing extra work to remove them).  …

[Read more]
Building mysql-proxy-0.6.0 on CentOS-5.2

I recently needed to configure mysql failover on some of our test machines. Thanks to Sheeri’s helpful blog entry which provides a simple failover lua script, configuring failover is a simple matter. However, the machines are running centos-5.2 and centos doesn’t provide an rpm for mysql-proxy. This blog entry describes how to build your own.

The latest mysql-proxy (0.6.1) is apparently not backward-compatible with 0.6.0 and earlier. It incorrectly handles the case when one of the backend machines is down. Instead of just marking it as down, it errors out completely. This makes it rather difficult to use it for failover scenarios. People have complained about this for a while. Bugs 34793 and …

[Read more]
Showing entries 91 to 100 of 131
« 10 Newer Entries | 10 Older Entries »