The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2014
Filed:
Sep. 22, 2011
Ivan D. Novick, Sunnyvale, CA (US);
Timothy Heath, Belmont, CA (US);
Ivan D. Novick, Sunnyvale, CA (US);
Timothy Heath, Belmont, CA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A distributed reusable framework comprising a non-logging resumable workflow of actions that runs independently in parallel to upgrade each machine of a large distributed cluster of machines. A CHECK process and a RUN process are associated with each action in the workflow. The CHECK process determines dynamically the state of each action, and the RUN process brings an action to a completed state. Following a reboot on a machine, the workflow on the machine sequences back to its start and rechecks each prior action of the workflow to verify that each action is in a completed state before. Upon a failure of the upgrade on a single machine in the cluster, the failed machine can be fixed and the workflow can be resumed without redoing the work already done. Since the actual live state is verified on each machine of the cluster, log files are unnecessary.