Ulf Wiger
Uber Erlang programmer and CTO of Erlang Solutions
Erlang Solutions Ltd
Ulf Wiger became one of the first commercial users of Erlang (certainly
the first in North America) when he bought a license in 1993. At the
time, he was busy designing disaster response systems in Alaska. In
1996, he joined Ericsson and became Chief Designer of the AXD 301
development. At nearly 2 million lines of Erlang code, AXD 301 is the
most complex system ever built in Erlang, and probably the most complex
commercial system built in any functional language.
In recent years, Ulf has been involved in several products based on the
AXD 301 architecture, and has been an active member of the Open Source
Erlang community. In February 2009, Ulf began his new job as CTO of
Erlang Solutions Ltd.
- Ulf's Blog
- Follow @uwiger on Twitter
- Erlang Solutions Ltd.
Ulf Wiger is Giving the Following Talks
Mnesia for the CAPper
Mnesia is often listed among the NoSQL databases; for good reason, it seems, as it is neither relational nor SQL-oriented.
In the Erlang community, Mnesia is perhaps regarded as a bit of a dinosaur, albeit of the small and cuddly variety, but in this talk, I will try to demonstrate how Mnesia has a thing or two to teach the upstarts. I will also show how Mnesia can borrow from its CAP cousins and make a respectable stab at massive scalability and eventual consistency.
In the Erlang community, Mnesia is perhaps regarded as a bit of a dinosaur, albeit of the small and cuddly variety, but in this talk, I will try to demonstrate how Mnesia has a thing or two to teach the upstarts. I will also show how Mnesia can borrow from its CAP cousins and make a respectable stab at massive scalability and eventual consistency.
Onviso and Exago: tracing and log analysis in multiple node environments
One goal for the ProTest project has been to develop ways to reuse abstract models for post-mortem analysis and monitoring of live target nodes. To this end, we are cooperating with the OTP team to improve the tool support for tracing and debugging, as well as developing some tools of our own. In this talk, I will present our progress with two Open Source components, Onviso and Exago:
Onviso draws from the work done by Mats Cronqvist to improve dbg, and from Inviso, an OTP component offering some powerful features, but which has yet seen little use in the community. The results of this work are currently released on Github, but our intention is to achieve full integration into OTP. Our current focus is to simplify multi-node tracing and management of complex trace cases, and provide a foundation for future work, using the advanced analysis techniques developed by ProTest.
Exago, also available on Github, is our own tool for powerful off-line log analysis. Using Exago, you can automatically parse and process log files, and check them against an abstract model of the system. In case of failure, it will report the abstract state where the error occurred, and the events that led to the point of failure.
Onviso draws from the work done by Mats Cronqvist to improve dbg, and from Inviso, an OTP component offering some powerful features, but which has yet seen little use in the community. The results of this work are currently released on Github, but our intention is to achieve full integration into OTP. Our current focus is to simplify multi-node tracing and management of complex trace cases, and provide a foundation for future work, using the advanced analysis techniques developed by ProTest.
Exago, also available on Github, is our own tool for powerful off-line log analysis. Using Exago, you can automatically parse and process log files, and check them against an abstract model of the system. In case of failure, it will report the abstract state where the error occurred, and the events that led to the point of failure.
Ulf Wiger is Host to the Following Tracks
Fueled by the new and more open development model for Erlang/OTP, there is increasing activity to extend Erlang into new application areas, new hardware configurations, and new language environments. This track presents some of these extensions, and discusses how to manage the evolution of the language.