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CoreOS Fest Berlin, the Open Source Distributed Systems Conference, brings together experts from all over the world to discuss container technologies, distributed systems and open source software to help take the industry to the next level in distributed computing.

The 2016 event will gather 500+ developers, devops professionals and sysadmins together to explore the next steps in making container technologies successful and secure.

Learn more at coreos.com/fest 

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Tuesday, May 10 • 14:20 - 15:00
Namazu: a debugger for distributed systems specific bugs

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Developing and maintaining distributed systems is difficult. We believe that the difficulties comes from lacking of a good debugger for the systems. Unlike non-distributed systems, bugs in the distributed systems are not understood well. Therefore building good debuggers is still difficult. The presenter will introduce Namazu project, an OSS framework of distributed systems fuzzing tester. Namazu focuses on two points of the systems: 1. error handling of hardware fault, and 2. non determinism of events e.g. packet arrival. They are distributed systems specific points and not covered by existing debugging techniques. The presenter will share success stories of removing bugs of real systems including etcd, Zookeeper, and Apache Yarn with Namazu.

avatar for Hitoshi Mitake

Hitoshi Mitake

NTT Labs
Hitoshi Mitake is a research engineer working for NTT Laboratories. He has been working on distributed storage systems and related technologies. These days, he is working on the etcd project actively. Current main topic is the design of authentication and access control of v3 API... Read More →

Tuesday May 10, 2016 14:20 - 15:00 CEST