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

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.
Inventors:
; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1414930
Assignee:
EMC IP Holding Company LLC (Hopkinton, MA); Los Alamos National Security, LLC (Los Alamos, NM) LANL
Patent Number(s):
9,852,146
Application Number:
14/663,634
Contract Number:
AC52-06NA25396
Resource Relation:
Patent File Date: 2015 Mar 20
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Other works cited in this record:

Information control system
patent, October 1991

Scalable distributed file system
patent, January 2001

File server system using file system storage, data movers, and an exchange of meta data among data movers for file locking and direct access to shared file systems
patent, November 2001

Metadata offload for a file server cluster
patent, November 2009

File system node updates
patent, July 2013

Method and apparatus for providing a key-value based storage interface
patent, April 2014

Local emulation of distributed key-value data store
patent, January 2016

Asynchronous and idempotent distributed lock interfaces
patent, February 2017

Method For Managing Lock Resources In A Distributed Storage System
patent-application, April 2009

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