Inductive Bias

JAX: Java performance myths # This talk was one of the famous talks on Java performance myths by Arno Haase.

JAX: Does parallel equal performant?

JAX: Pigs, snakes and deaths by 1k cuts # In his talk on performance problems Rainer Schuppe gave a great introduction to which kinds of performance problems can be observed in production and how to best root-cause them.

JAX: Java HPC by Norman Maurer # For slides see also: Speakerdeck: High performance networking on the JVM Norman started his talk clarifying what he means by high scale: Anything above 1000 concurrent connections in his talk are considered high scale, any…

JAX: Hadoop overview by Bernd Fondermann # After breakfast was over the first day started with a talk by Bernd on the Hadoop ecosystem.

BigDataCon # Together with Uwe Schindler I had published a series of articles on Apache Lucene at Software and Support Media's Java Mag several years ago.

Hadoop Summit Amsterdam # About a month ago I attended the first European Hadoop Summit, organised by Hortonworks in Amsterdam.

ApacheConNA: Misc # In his talk on Spdy Mathew Steele explained how he implemented the spdy protocol as an Apache httpd module - working around most of the safety measures and design decisions in the current httpd version.

ApacheConNA: Hadoop metrics # Have you ever measured the general behaviour of your Hadoop jobs?

ApacheConNA: Monitoring httpd and Tomcat # Monitoring - a task generally neglected - or over done - during development.

ApacheConNA: On Security # During the security talk at Apache Con a topic commonly glossed over by developers was covered in quite some detail: With software being developed that is being deployed rather widely online (over 50% of all websites are powered…

ApacheConNA: On documentation # In her talk on documentation on OSS Noirin gave a great wrap up of the topic of what documentation to create for a project and how to go about that task.

ApacheConNA: On delegation # In her talk on delegation Deb Nicholson touched upon a really important topic in OSS: Your project may live longer than you are willing to support it yourself.

ApacheConNA: First keynote # All three ApacheCon keynotes were focussed around the general theme of open source communities.

Apache Hadoop Get Together Berlin # This evening I joined the group over at Immobilienscout 24 for today’s Hadoop Get Together.

ApacheConNA: Meet the indian tribe # ApacheCon is the ``User Conference of the Apache Software Foundation’’.

How to get your submission accepted at Berlin Buzzwords # Disclaimer: Intentionally posting on my private blog - these are my own criteria, not general advice from the review committee.

Keepers of secrets - FOSDEM 09 # The closing keynote was given by Leslie Hawthorn whom I had the pleasure of meeting last year during Berlin Buzzwords.

On making Libre Office suck less – a major refactoring effort - FOSDEM 08 # Libre Office is currently in a phase of code cleanup and refactoring that turns the whole code base upside down.

E17 - FOSDEM 07 # I’m really glad the NoSQL room was all packed on afternoon – otherwise I’d have missed an amazing talk by people behind Enlightenment – a window manager that is older than Gnome, nearly older than KDE and has been my favourite choice for…

Systemd - FOSDEM 06 # As sort of a “go out of your comfort zone and discover new stuff” exercise I went to the systemd – two years later talk next.

Notes on storage options - FOSDEM 05 # On MySQL Second day at FOSDEM for me started with the MySQL dev room.

AFERO GPL Panel discussion - FOSDEM 04 # The panel started with a bit of history of the AGPL: Born in the age of growing ASP (application service provider) businesses AGPL tried to fix the hosting loop whole in GPL in the early 2000s.

Mozilla legal issues - FOSDEM 03 # In the next talk Gervase Markham talked about his experience working for Mozilla on legal and license questions.

Trademarks and OSS - FOSDEM 02 # So the first talk I went to ended up being in the legal dev room on trademarks in open source projects.

FOSDEM 2013 - 01 # On Friday morning our train left for this year’s FOSDEM.

Elastic Search meetup Berlin – January 2013 # The first meetup this year I went to started with a large bag of good news for Elastic Search users.

Linux vs.

ABC - die Katze lief im Schnee # Seen this morning in Berlin: A little impression from what the city looked like the weeks before it turned green on Christmas: For winter images of other years see also previous posts.

On Taming Text # This time of the year I would usually post pictures of my bicycle standing in the snow somewhere in Tierpark.

Thanks for all the help # This year was a blast: It started with the ever great FOSDEM in Brussels (see you there in 2013?)

RecSys Stammtisch Berlin - December 2012 # Earlier this month I attended the fourth Recommender Stammtisch in Berlin.

Elastic Search meetup Berlin # Today Retresco hosted the (to my knowledge fourth) Elastic Search User Group Berlin - a group dedicated to using Lucene as part of Elastic Search.

ApacheConEU - part 11 (last part) # One of the last sessions covered logging frameworks for Java.

ApacheConEU - part 10 # In the next session Jukka introduced Tika - a toolkit for parsing content from files including a heuristics based component for guessing the file type: Based on file extension, magic and certain patterns in the file the file type c…

ApacheCon EU - part 09 # In the Solr track Elastic Search and Solr Cloud went into competition.

ApacheConEU - part 08 # Jan Lehnardt’s talk covered the history of CouchDB - including lessons learnt along the way.

ApacheConEU - part 07 # Julien Nioche shared some details on the nutch crawler.

ApacheConEU - part 06 # For the next session I joined the Tomcat crowd in Marc Thomas’ to learn more on Tomcat reverse proxy configurations.

ApacheConEU - part 05 # The afternoon featured several talks on HBase - both it’s implementation as well as schema optimisation.

ApacheConEU - part 04 # The second talk I went to was the one on the dev@hadoop.a.o insights given by Steve Loughran.

ApacheConEU - part 03 # Tuesday started early with a plenary - run by the sponsor, not too many news there, except for the very last slide that raised a question that is being discussed often also within the ASF - namely how to define oneself compared to…

ApacheCon EU - part 02 # For me the week started with the Monday Hackathon.

ApacheConEU - part 01 # Apache Con EU in Germany - in November, in Sinsheim (in the middle of nowhere): I have to admit that I was more than skeptical whether that would actually work out very well.

Teddy in London # While I was at the conference – Teddy spent some time exploring the surroundings of the conference hotel.

Strata EU - part 4 # The rest of the day was mainly reserved for more technical talks: Tom Wight introducing the merits of MR2, also known as YARN.

Strata EU - part 3 # The first Tuesday morning keynote put the hype around big data into historical context: According to wikipedia big data apps are defined by their capability of coping with data set sizes that are larger than can be handled with common…

Strata EU - part 2 # The second keynote touched upon the topic of data literacy: In an age in which growing amounts of data are being generated being able to make sense of these becomes a crucial skill for citizens just like reading, writing and computing.

O’Reilly Strata London - part 1 # A few weeks ago I attended O’Reilly Strata EU.

Teddy in Down Under # The last two September weeks Teddy was in Down Under.