The GoTo Conference Berlin is part of a conference series with stops in Berlin, Chicago, Amsterdam, Aarhus and Copenhagen. The 3 day conference was divided in workshops on the first day and talks on the second and third day.

The talks and the catering were very well organized. The only drawback was, that the WLAN wasn’t working most of the time.

Now lets go through the talks:

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Author:Johannes Pieringer
Tags:conference
Categories:goto conference, java, development

Devoxx is over, sadly, and under normal circumstances this would be the time when we Devoxxians return to our everyday’s lives for another year.

However, this time it is different: At Google’s booth at the exhibition area we got their latest Cardboard gadget. Cardboard is a virtual reality viewer for Android phones and it is absolutely the greatest thing I have ever seen on a phone. The Cardboard app comes with a lot of fancy demos like a virtual reality tour through Versailles, flying around in Google earth and even a short animated 360° movie.

For me Devoxx did not stop when I left the venue this afternoon. Devoxx continued at home when I opened that Cardboard give-away. Infinite possibilities, the motto of this year’s Devoxx, couldn’t fit better. I definitely need to check it out and learn more about it.

Thank you very much for that, Google! (fabian)

See you next year, at the Devoxx. But before that lets have a look at the last day and a very inspiring talk on Android Wear:

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Author:Christoph Deppisch
Tags:devoxx, conference
Categories:devoxx, development
Devoxx 2014, Day 4

First of all a small notice on the Ignite sessions at Devoxx. The 5 minute talks with 20 slides were very entertaining and I am glad that Roland kind of talked us into this. The sessions take place during lunch break but it is definitely worth taking the time and listening to the talks.

Now let’s go through the talks of day 4 in Antwerp.

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Author:Christoph Deppisch
Tags:devoxx, conference
Categories:devoxx, development

“Devoxx Ignite sessions” (fabian)

Devoxx ignite sessions are a great thing: Each speaker has 20 slides in 5 minutes, the slides are auto-forwarding, so each slide is up 15 seconds. During the hour long ignite session you would hear 8 talks. Today, we learned how to make money, ride a mountain bike, do performance tuning, save the planet, be a diabolical developer, share a house, do open source, decode the airspace, and why Stephen Chin’s job sucks.

The format reminds a bit of TED’s talks, talks are quick, innovative, and engaging. Sometimes I even felt that the take away of a five minute talk is not necessarily less than the take away of the three hour university sessions.

Author:Christoph Deppisch
Tags:devoxx, conference
Categories:devoxx, development
Devoxx 2014, Day 3

So the group of ConSol Devoxxians is now complete as the rest of the posse has finally arrived for the upcoming conference days in Antwerp. And we are all excited to hear the latest news in the opening keynote from Stephan Janssen, who is best named as the father of the Devoxx conference and the Parleys platform.

IMG_20141112_091456

Stephan has some great announcements in his keynote. One of them is to welcome Devoxx Poland as new family member in Krakow next year, which is indeed great news for our ConSol colleagues in Poland.

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Author:Christoph Deppisch
Tags:devoxx, conference
Categories:devoxx, development
Devoxx 2014, Day 2

2nd day in Antwerp where Torsten, Julian, Roland and Fabian are able to listen to awesome university and tools in action talks. Tomorrow on Wednesday the rest of the ConSol posse (Ana, Georgi, Christian and Christoph) arrives in Antwerp to see the 3-day conference part of Devoxx. And still another highlight to come on Devoxx day 2: Roland speaks about “Spicing up JMX with Jolokia” in his tools in action talk scheduled 18:05-18:35 in room 8.

So here is the wrap up of Devoxx Day 2:

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Author:Christoph Deppisch
Tags:devoxx, conference
Categories:devoxx, development
Devoxx 2014, Day 1

It’s Devoxx time! Mid of November in lovely Antwerp, Belgium. Five days packed with technical talks, hacks and technologies. And of course as usual a group of Consolis will bring the Devoxx atmosphere to you. We blog our experiences and impressions from Antwerp.

So be prepared to receive some on site summaries of what we have seen and what inspired us here.

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Author:Christoph Deppisch
Tags:devoxx, conference
Categories:devoxx, development

Immer wenn ich bei einem CentOS-System Pakete aus der EPEL-Kollektion installieren will, muss ich in meinem schlauen Büchlein blättern oder rumgoogeln, wie das Einbinden des EPEL-Repositories funktioniert. Deshalb halte ich es mal an dieser Stelle hier fest, dann finde ich das richtige Kommando beim nächsten Mal auf Anhieb.

# CentOS 7 64bit
rpm -i http://download.fedoraproject.org/pub/epel/7/x86_64/epel-release-7-2.noarch.rpm
# CentOS 6 32bit
rpm -i http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
# CentOS 6 64bit
rpm -i http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
# CentOS 5 32bit
rpm -i http://download.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm
# CentOS 5 64bit
rpm -i http://download.fedoraproject.org/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm
Author:Gerhard Laußer

mm_mgDer Ausfall eines Monitoring-Servers ist an sich ist nicht produktionskritisch. Trotzdem stellt er eine Gefahr dar. Ohne Monitoring befindet sich der Betrieb im Blindflug. Fehler, die Geld kosten oder Kunden verärgern bleiben unentdeckt. Matthias Gallinger hat sich Gedanken gemacht, wie man einen möglichst unterbrechungsfreien Monitoringbetrieb sicherstellt. Dabei achtete er darauf, dieses Ziel mit simpelsten Mitteln zu erreichen. Mit der vorgestellten Lösung bleibt Admins das Erlernen und Bedienen von komplexen Cluster-Frameworks erspart.

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Author:Gerhard Laußer

Ich habe in letzter Zeit viel Aufwand in die Entwicklung bzw. Erweiterung von SNMP-Plugins gesteckt. Die, die ich veröffentliche habe sind: check_nwc_health für Netzwerkkomponenten, check_ups_health für unterbrechungsfreie Stromversorgungen und check_tl_health für Tape Libraries. Allen drei haben gemeinsam, daß sie bei einheitlichem Kommandozeilenformat möglichst viele unterschiedliche Hersteller und Modelle abdecken. Wenn ich nun eine neue Anforderung bekomme und ein Plugin für ein bisher unbekanntes Gerät erweitern muss, dann brauche ich erstmal eine Übersicht über die MIBs und OIDs, welche bei diesem Gerät implementiert wurden. Ich kann natürlich die Dokumentation durchschauen, aber die steht nicht immer zur Verfügung bzw. ist nicht sehr aufschlussreich. Ein Snmpwalk ist auch einer der ersten Schritte, aber der liefert mir einfach nur endlose Zahlenkolonnen, die ich mühsam interpretieren muss. Daher habe ich einen --mode supportedmibs eingeführt, mit dessen Hilfe ich die Namen der unterstützten MIBs angezeigt bekomme.

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Author:Gerhard Laußer
Tags:check_nwc_health, Nagios, Plugins, snmp
Categories:nagios