Invention Grant
- Patent Title: Instance migration for rapid recovery from correlated failures
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Application No.: US14163906Application Date: 2014-01-24
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Publication No.: US09652326B1Publication Date: 2017-05-16
- Inventor: Jean-Paul Bauer , Marc Nevin Daya , Jaco Hermanus Gabriel Le Roux , Kevin Robert Scaife , Laban Mwangi Kimotho , Brian Modra , Alan Roy Powell
- Applicant: Amazon Technologies, Inc.
- Applicant Address: US NV Reno
- Assignee: Amazon Technologies, Inc.
- Current Assignee: Amazon Technologies, Inc.
- Current Assignee Address: US NV Reno
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Robert C. Kowert
- Main IPC: G06F11/00
- IPC: G06F11/00 ; G06F11/14

Abstract:
Methods and apparatus for instance migration to support rapid recovery from correlated failures are described. A failure event affecting one or more compute instances of a provider network, including a particular compute instance hosted at a first instance host, is detected based on an analysis of health status information. A determination is made as to whether a particular compute instance meets an acceptance criterion for a failure-induced migration. The acceptance criterion may be based on storage-related requests from the particular compute instance. If the particular compute instance meets the acceptance criterion, one or more configuration operations are initiated to re-launch the particular compute instance at a different instance host.
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