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:
Mar. 28, 2017
Filed:
Jul. 13, 2012
Dhrubajyoti Borthakur, Sunnyvale, CA (US);
Dmytro Molkov, Menlo Park, CA (US);
Hairong Kuang, San Jose, CA (US);
Dhrubajyoti Borthakur, Sunnyvale, CA (US);
Dmytro Molkov, Menlo Park, CA (US);
Hairong Kuang, San Jose, CA (US);
Facebook, Inc., Menlo Park, CA (US);
Abstract
Switching an active metadata node is disclosed. An indication that a standby metadata node of a distributed file system should replace an active metadata node of the distributed file system as a new active metadata node of the distributed file system is received. The standby metadata node is included in a server. A request that indicates that the standby metadata node would like to become an exclusive metadata node writer of a transaction log is sent. A confirmation that the standby metadata node is the exclusive metadata node writer of the transaction log is received. Based at least in part on the confirmation, an update that the standby metadata node has become the new active metadata node of the distributed file system is provided.