007: Democratically Finding The Cause of Packet Drops

20 Feb 2018  ·  Arzani Behnaz, Ciraci Selim, Chamon Luiz, Zhu Yibo, Liu Hingqiang, Padhye Jitu, Loo Boon Thau, Outhred Geoff ·

Network failures continue to plague datacenter operators as their symptoms may not have direct correlation with where or why they occur. We introduce 007, a lightweight, always-on diagnosis application that can find problematic links and also pinpoint problems for each TCP connection. 007 is completely contained within the end host. During its two month deployment in a tier-1 datacenter, it detected every problem found by previously deployed monitoring tools while also finding the sources of other problems previously undetected.

PDF Abstract


  Add Datasets introduced or used in this paper