In a round-robin database (RRD) usually time-series data like network bandwidth, temperatures, CPU load etc. is stored. The data is stored in the way that system storage footprint remains constant over time. This avoids resource expensive purge jobs and reduces complexity.<br> MySQL does NOT yet provide this kind of storage engine. Although some people were thinking about and some prototypes exists.<br> Nevertheless in this white paper it is shown how you can build your own RRD tables...

Exciting news! Adrienne is resting and I hold in my arms (typing this with one hand): Liam Alexander Cole, born on Friday, March 2nd at 15:31 PST (GMT-0800). He weighs 7 lbs 11.5 oz (3501 g) and is 18.75 inches (47.6 cm) long/tall.

Sorry for miscategorizing this in the “MySQL” category — I wanted everyone to see it even if they just follow me through Planet MySQL!

Open-Xchange marketing chief Kusnetzky departs…Novell benefits from Microsoft deal…a number of open source bloggers weigh in on ‘what is open?’…and more…

Money or nothing? Trade-offs in FOSS compensation, Linux.com, Bruce Byfield (Article)

Developer: Barry Klawans, CTO, JasperSoft, InternetNews.com, Sean Michael Kerner (Article)

Microsoft?s Linux foray props up Novell, ZDNet Between the Lines, Larry Dignan (Blog)

Marketing chief departs Open-Xchange, News.com Open Source and Standards Blog, Stephen Shankland (Blog)

…

I got a lot of very nice feedback on the three tools I recently added to the MySQL Toolkit project on Sourceforge, and found and solved several issues with quoting and password prompting, index types, and so forth. Thank you all for your feedback, and welcome to Ruslan Zakirov, who plans to add some new tools!

It’s finally ready – the new stable version of the innotop MySQL and InnoDB monitor. Version 1.4.0 brings you new features and enhancements I think you’ll really enjoy: Manage many servers at once conveniently. Powerful filters, expressions, colorizing rules, and sorting. Better error handling. More modes, such as a mode to monitor and control replication. Much more. Much gratitude is due the people who’ve helped, especially Sebastien Estienne, Christian Hammers, Steven Kreuzer and other people who’ve helped design features, make packages, get innotop distributed more widely, and give me advice on such things as Makefiles.

lua + FastCGI

I was looking for a FastCGI backend for lua to have a asynchronous brother for mod-magnet in lighttpd.

Same as mod-magnet this embedding of lua is not meant to replace Frameworks like Rails or Spring, nor do I want to write average PHP application in it. I use this magnet to write small scripts (for this project it was 140 lines of lua) which is going to be executed at least 500 times a second.

That is a range where the setup-cost for a request matters. I don't want to load the session, nor do I want cleanup the whole environment for each request. I need a way to store connections to the database over multiple requests and I have to cache content from the database in the application.

I needed: - a byte-code cache …

lua + FastCGI

I was looking for a FastCGI backend for lua to have a asynchronous brother for mod-magnet in lighttpd.

Same as mod-magnet this embedding of lua is not meant to replace Frameworks like Rails or Spring, nor do I want to write average PHP application in it. I use this magnet to write small scripts (for this project it was 140 lines of lua) which is going to be executed at least 500 times a second.

That is a range where the setup-cost for a request matters. I don't want to load the session, nor do I want cleanup the whole environment for each request. I need a way to store connections to the database over multiple requests and I have to cache content from the database in the application.

I needed: - a byte-code cache - …

Two days ago, we announced Amanda Enterprise Edition 2.6. One of the
key features of the release is Zmanda Management Console - a simple,
secure and easy to use interface for Amanda. Zmanda Management Console
allows users to configure and administer Amanda backups, restore from
Amanda backup archives, and provides reports.

In addition to Zmanda Management Console, Amanda Enterprise Edition
2.6 includes Amanda Rapid Installer. Amanda Rapid Installer makes the
installation of Amanda Enterprise Edition and Zmanda Management
Console a simple process. Users just need to download the common binary for all
supported platforms from the Zmanda Network, run the installer, answer
few …

Welcome to the 34th edition of Log Buffer, the weekly review of the database blogosphere. You may have heard by now of problems that the change in Daylight Saving Time presents Oracle databases and related systems. (If you haven’t heard and have some of these systems, you can start freaking out right about now.) We’ve [...]