Flink Meetup #7 Juggling Bits & Bytes, Flink Troubleshooting & Community Update

Join us for our 7th Apache Flink (https://flink.apache.org/) Meetup, hosted and sponsored by Idealo (http://www.idealo.de/).

A big thank you to Idealo for sponsoring the space and the drinks!

On this meetup Robert Metzger will give his monthly community update as well as a talk about Troubleshooting in Flink Applications. Fabian Hüske will give a talk on how Apache Flink operates on binary data.

After the 3 talks, we will have a networking session with drinks sponsored by Idealo and there's the opportunity to work on an interesting data problem you're facing with Flink committers.

Location:

The meetup takes place at Idealo at Ritterstr 11 (https://www.google.de/maps/place/Ritterstra%C3%9Fe+11,+10969+Berlin/@52.5013346,13.4113277,17z/data=!3m1!4b1!4m2!3m1!1s0x47a84e2d76e77fab:0xf128ce706887709c?hl=en), 10969 Berlin (U-bahn Kottbusser Tor). You go to the second courtyard, take the door on the right side and go to the fourth floor. There will be signs showing you the way.

Talks:

1. Flink Community Update
   Robert Metzger, committer

2. Juggling with Bits and Bytes
   How Apache Flink operates on binary data
   Fabian Hüske, committer

A common challenge that all JVM-based data analytics engines such as Apache Flink face is to store large amounts of data in memory to enable efficient sorting and joining. The most straight-forward approach to process on lots of data in a JVM is to put it as objects on the heap and operate on these objects. However, this approach has a few notable drawbacks.
In this talk, Fabian will explain in detail how Flink actively manages its memory, serializes objects into binary representations, and efficiently operates on this data. He will also show some numbers comparing the performance of sorting objects on the heap and sorting them in a serialized format.

3. Troubleshooting Flink Applications
   How to run, debug and speed up your Flink applications
   Robert Metzger, committer

Over the past years, we've seen many new Flink users. In this talk, Robert will answer the most frequent asked questions.
The talk is interesting for both new and existing Flink users. New users will get a good overview of the system from a user's perspective and existing users will probably find some hidden gems in the talk.

Bring your data

After the talks, while having a drink, there's the opportunity to work together with Flink committers on an interesting data problem you're facing.

Please contact Kostas Tzoumas at kostas@data-artisans.com if you're interested in taking part in this!