PyTN Profiles: K Lars Lohn and Mozilla

Speaker: K Lars Lohn (@2braids)

The only speaker at PyTN and Mozillian known to have been in Maxim Fashion!


Trapped at the triple point between a geek, a hippie and a biker, Lars is the Web Engineering Herd Patriarch at the Mozilla Corporation. More conventionally, he’s the software architect behind the Mozilla Socorro project. Unintentionally specializing in programming as performance art, he frequently jumps into projects on the Thursday prior to a Monday deadline. Steadfastly refusing to move into management, he has a thirty-five year career behind him as a hacker. He’s left a wake of code behind him in Fortran, C, C++, Java and Python across many industries: pure science, Wall Street, airlines, phone companies, and too many more to list. The odds are that your child rides a school bus that was optimally routed by software that evolved from his work in the 1980s.

He prefers Python, PostgreSQL and Harleys, but is versed in C++, MySQL and Subarus.

On Saturday at 1:20 PM, K Lars Lohn will be presenting: When Firefox Face-plants: Socorro, the Mozilla Crash Reporter. When Firefox crashes, it cries out to home at Mozilla: collectively, millions of times per day. This is the story of what the fox says and who is listening.

Socorro is a home grown Open Source distributed Python application analyzing crash data. Gluing HBase, Postgres, Elasticsearch, RabbitMQ and Google Breakpad together, Socorro gathers and serves terabytes of data per year.

Sponsor Profile: Mozilla (@mozilla)

Mozilla has been a pioneer and advocate for the Web for more than a decade. We create and promote open standards that enable innovation and advance the Web as a platform for all. Today, hundreds of millions of people worldwide use Mozilla Firefox to experience the Web on computers, tablets and mobile devices. With Firefox OS and Firefox Marketplace, Mozilla is driving a new mobile ecosystem that is built entirely on open Web standards, freeing mobile providers, developers and end users from the limitations and restrictions imposed by proprietary platforms. Visit them at

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