Global indexing within an enterprise object store file system
First Claim
1. A computer-implemented method for cache coherency, comprising:
- establishing one or more appliances, each defining a storage cluster;
establishing one or more tenants spanning across said one or more appliances, wherein an application stores objects in file systems associated with said appliances and said tenants;
establishing a global index (Gindex) including metadata relating to objects stored in association with said application, wherein each object is associated with a unique object identifier;
replicating said Gindex to plurality of data centers supporting said one or more tenants;
storing an original object at a first data center;
storing a cached copy of said original object at a second data center;
establishing a data center index for said second data center including metadata relating to cached copies of objects stored at said second data center;
determining that said cached copy exists from said metadata of said Gindex associated with said original object; and
aligning said cached copy of said object to said original object using metadata for said original object from a local copy of said Gindex.
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Abstract
A file system is disclosed that includes an application wide name space instantiated in a global index (Gindex) that is used for accessing objects related to an application. Using the Gindex, a method for cache coherency includes establishing one or more appliances, each defining a storage cluster; establishing one or more tenants spanning across appliances, wherein an application stores objects in file systems associated with the appliances and tenants; establishing a Gindex including metadata relating to objects stored in association with the application; replicating the Gindex to plurality of data centers supporting the tenants; storing an original object at a first data center; storing a cached copy of the object at a second data center; aligning the cached copy using metadata for the object from a local copy of the Gindex.
14 Citations
8 Claims
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1. A computer-implemented method for cache coherency, comprising:
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establishing one or more appliances, each defining a storage cluster; establishing one or more tenants spanning across said one or more appliances, wherein an application stores objects in file systems associated with said appliances and said tenants; establishing a global index (Gindex) including metadata relating to objects stored in association with said application, wherein each object is associated with a unique object identifier; replicating said Gindex to plurality of data centers supporting said one or more tenants; storing an original object at a first data center; storing a cached copy of said original object at a second data center; establishing a data center index for said second data center including metadata relating to cached copies of objects stored at said second data center; determining that said cached copy exists from said metadata of said Gindex associated with said original object; and aligning said cached copy of said object to said original object using metadata for said original object from a local copy of said Gindex. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification