DOAG Schulungstag 2014: Cloud Computing

DOAG Schulungstag 2014

 

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Cloud Computing und Public Clouds: Was Sie wissen müssen – gezeigt anhand von live und hands-on Beispielen

Den Teilnehmern werden herstellerunabhängige Grundlagen zum interessantesten Thema der letzten Jahre – Cloud Computing – vermittelt. Die Schulung beinhaltet die wichtigsten Public Cloud Provider wie Amazon, Google  und Oracle, sowie Netflix OSS, Openshift und Docker. Im Mittelpunkt steht die Technologie. Bereiche wie IaaS (Server mit SSDs und ¼ TB Hauptspeicher für 2€), hochverfügbarer Plattenspeicher, Datenbanken, Load Balancer usw. Ausserdem betrachten wir die Auswirkungen, die Cloud Computing mittlerweile auf den Softwareentwicklungsprozess und den Betrieb hat.

Zielgruppe:

Einsteiger und Teilnehmer mit mittlerem Wissen im Bereich Cloud Computing die sich mit dem Thema vertraut machen wollen, an der Technologie interessiert sind und einen Blick über den Oracle-Tellerand hinaus wagen!

Cloud-Computing und Public Clouds:
Was Sie wissen müssen – gezeigt anhand von Hands-on Beispielen.


✔ Freie Plätze sichern!
✔ Jetzt buchen
✔ DOAG 2014 Schulungstag.

http://www.doag.org/events/konferenzen/doag-2014/der-schulungstag.html#c6898

 

Computerworld Quotes Me on Cloud

Cloud is more popular than ever. Even the slower, more traditional software vendors now pick up the concepts I wrote about back in 2011. Keep going!

Find attached some quotes from the Computerworld magazine.

computerworld cloud survey

WebLogic 12.1.3 New Unicast Group Implementation

As of WebLogic 12.1.3 the implementation of unicast groups used for WebLogic clusters has changed.

What is new?

  1. There is a fixed maximum number of groups which is 10.
  2. Groups can be asymmetric.
  3. Servers are put into groups based on the hash value of their name (which obviously explains 2).

The group leader in a particular group might change if new servers are added but with dynamic clusters and generated cluster names this is rather unlikely.

Why?

The implementation has changed to make it more robust.

Example

When creating a classic cluster with servers surf1, surf2, surf3 or servers abc, jkl, xyz, every server ends up in its own unicast group, the total number of groups is the same as the number of servers.

When creating a dynamic cluster with let’s say 15 servers, server server-1 and server-11, server-2 and server-12, etc. are grouped together into one group.

unicast groups dyn cluster

More?

It is not yet officially documented. Currently the official Oracle documentation still describes the old implementation. I described the new implementation in my Oracle Open World presentation together with Dave Cabelus.

Also there is a short web cast available here:

12 Things about WebLlogic 12.1.3

While you’re at it, make sure to download my Oracle Open World 2014 presentation slides for more ideas of what is new and newsworthy in WebLogic 12.1.3.

New RESTful Management API in WebLogic 12.1.3

What you should know:

WebLogic 12.1.3 comes with a new implementation of the RESTful management interface.

Why RESTful?

RESTful interfaces are interesting because they …
– can be used from any language (UNIX curl, Python, Java, you name it …)
– are leight-weight. All you send is an URL using http (and possibly some JSON data)
– are leight-weight on the client side. No JVM is required, unlike let’s say JMX.
– can easily be used across firewalls because the underlying protocol is http.

What is new?

Unlike previous versions of the management interface, WebLogic 12.1.3 provides a technically better implementation for RESTful management, since the interface…
– incorperates versioning
– uses canonical URLs
– uses the well-known http verbs GET (to retrieve information. e.g about a configured data sources), POST (to create e.g. a new data source), OPTIONS (to create a JSON data structure used as a template for create a new datasource), DEL (to delete a datasource).
– returns RESTful URLs in the response.

What is missing?

Currently there is no support for JMS, Workmangers, etc. Since there is no generic way of accessing MBean attributes in WebLogic’s implementation of the RESTful management interface you have to wait for Oracle to implement support for those ressources.

Gossip is spreading that the missing ressources will be included in WebLogic 12.2.1.

More?

more information can be found in the Oracle documentation. There are also some web casts available on the WebLogic Book Youtube channel.

Even More?

I recorded a 2 minute tech-tip for OTN. Previously I explained how the open source Jolokia alternative can be used together with WebLogic.

 

oow#2014 Slides Uploaded: 12 Things about WebLogic 12.1.3

I uploaded my presentation slides from Oracle Open World 2014. Make sure to subscribe to my slideshare content library: