Netpilot: Automating datacenter network failure mitigation

Journal Article

The soaring demands for always-on and fast-response online services have driven modern datacenter networks to undergo tremendous growth. These networks often rely on scale-out designs with large numbers of commodity switches to reach immense capacity while keeping capital expenses under check. The downside is more devices means more failures, raising a formidable challenge for network operators to promptly handle these failures with minimal disruptions to the hosted services. Recent research efforts have focused on automatic failure localization. Yet. resolving failures still requires significant human interventions, resulting in prolonged failure recovery time. Unlike previous work. NetPilot aims to quickly mitigate rather than resolve failures. NetPilot mitigates failures in much the same way operators do - by deactivating or restarting suspected offending components. NetPilot circumvents the need for knowing the exact root cause of a failure by taking an intelligent trial-and-error approach. The core of NetPilot is comprised of an Impact Estimator that helps guard against overly disruptive mitigation actions and a failure-specific mitigation planner that minimizes the number of trials. We demonstrate that NetPilot can effectively mitigate several types of critical failures commonly encountered in production datacenter networks. Copyright 2012 ACM.

Full Text

Duke Authors

Cited Authors

  • Wu, X; Turner, D; Chen, CC; Maltz, DA; Yang, X; Yuan, L; Zhang, M

Published Date

  • December 1, 2012

Published In

Volume / Issue

  • 42 / 4

Start / End Page

  • 419 - 430

Electronic International Standard Serial Number (EISSN)

  • 1943-5819

International Standard Serial Number (ISSN)

  • 0146-4833

Digital Object Identifier (DOI)

  • 10.1145/2377677.2377759

Citation Source

  • Scopus