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Distributed metadata servers for cluster file systems using shared low latency persistent key-value metadata store

United States Patent

9,852,146
December 26, 2017
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
A cluster file system is provided having a plurality of distributed metadata servers with shared access to one or more shared low latency persistent key-value metadata stores. A metadata server comprises an abstract storage interface comprising a software interface module that communicates with at least one shared persistent key-value metadata store providing a key-value interface for persistent storage of key-value metadata. The software interface module provides the key-value metadata to the at least one shared persistent key-value metadata store in a key-value format. The shared persistent key-value metadata store is accessed by a plurality of metadata servers. A metadata request can be processed by a given metadata server independently of other metadata servers in the cluster file system. A distributed metadata storage environment is also disclosed that comprises a plurality of metadata servers having an abstract storage interface to at least one shared persistent key-value metadata store.
Bent; John M. (Los Alamos, NM), Faibish; Sorin (Newton, MA), Pedone, Jr.; James M. (West Boylston, MA), Tzelnic; Percy (Concord, MA), Ting; Dennis P. J. (Groton, MA), Ionkov; Latchesar A. (Los Alamos, NM), Grider; Gary (Los Alamos, NM)
EMC IP Holding Company LLC (Hopkinton, MA), Los Alamos National Security, LLC (Los Alamos, NM)
14/ 663,634
March 20, 2015
STATEMENT OF GOVERNMENT RIGHTS This invention was made under a Cooperative Research and Development Agreement between EMC Corporation and Los Alamos National Security, LLC. The United States government has rights in this invention pursuant to Contract No. DE-AC52-06NA25396 between the United States Department of Energy and Los Alamos National Security, LLC for the operation of Los Alamos National Laboratory.