Data redistribution in data replication systems
First Claim
1. A system, comprising:
- one or more processors configured to;
redistribute one or more originator data subsets among a plurality of originator nodes from an initial distribution arrangement to a new distribution arrangement; and
determine data redistribution information including identification information of the originator data subsets, identification information of originator nodes comprising the initial distribution arrangement, and identification information of originator nodes comprising the new distribution arrangement; and
a communication interface coupled to the processors and configured to send the redistribution information to a replica system comprising a plurality of replica nodes, wherein;
the one or more originator data subsets were previously replicated on the replica system as one or more corresponding replica data subsets among the plurality of replica nodes;
the redistribution information is used by the replica system to redistribute the one or more corresponding replica data subsets among the plurality of replica nodes from a previously replicated arrangement to a new replicated arrangement; and
the one or more corresponding replica data subsets are redistributed among the plurality of replica nodes without requiring the one or more originator data subsets to be sent to the replica system during redistribution.
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0 Petitions
Accused Products
Abstract
Data replication is disclosed. Originator data subsets are redistributed among a plurality of originator nodes from an initial distribution arrangement to a new distribution arrangement. Data redistribution information is determined. The redistribution information includes identification information of the originator data subsets, identification information of originator nodes comprising the initial distribution arrangement, and identification information of originator nodes comprising the new distribution arrangement. The redistribution information is sent to a replica system comprising a plurality of replica nodes. The redistribution information is used by the replica system to redistribute corresponding replica data subsets among a plurality of replica nodes from a previously replicated arrangement to a new replicated arrangement.
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Citations
20 Claims
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1. A system, comprising:
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one or more processors configured to; redistribute one or more originator data subsets among a plurality of originator nodes from an initial distribution arrangement to a new distribution arrangement; and determine data redistribution information including identification information of the originator data subsets, identification information of originator nodes comprising the initial distribution arrangement, and identification information of originator nodes comprising the new distribution arrangement; and a communication interface coupled to the processors and configured to send the redistribution information to a replica system comprising a plurality of replica nodes, wherein; the one or more originator data subsets were previously replicated on the replica system as one or more corresponding replica data subsets among the plurality of replica nodes; the redistribution information is used by the replica system to redistribute the one or more corresponding replica data subsets among the plurality of replica nodes from a previously replicated arrangement to a new replicated arrangement; and the one or more corresponding replica data subsets are redistributed among the plurality of replica nodes without requiring the one or more originator data subsets to be sent to the replica system during redistribution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method, comprising:
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redistributing one or more originator data subsets among a plurality of originator nodes from an initial distribution arrangement to a new distribution arrangement; and determining data redistribution information including identification information of the originator data subsets, identification information of originator nodes comprising the initial distribution arrangement, and identification information of originator nodes comprising the new distribution arrangement; and sending the redistribution information to a replica system comprising a plurality of replica nodes, wherein; the one or more originator data subsets were previously replicated on the replica system as one or more corresponding replica data subsets among the plurality of replica nodes; the redistribution information is used by the replica system to redistribute one or more corresponding replica data subsets among a plurality of replica nodes from a previously replicated arrangement to a new replicated arrangement; and the one or more corresponding replica data subsets are redistributed among the plurality of replica nodes without requiring the one or more originator data subsets to be sent to the replica system during redistribution. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A computer program product, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions for:
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redistributing one or more originator data subsets among a plurality of originator nodes from an initial distribution arrangement to a new distribution arrangement; and determining data redistribution information including identification information of the originator data subsets, identification information of originator nodes comprising the initial distribution arrangement, and identification information of originator nodes comprising the new distribution arrangement; and sending the redistribution information to a replica system comprising a plurality of replica nodes, wherein; the one or more originator data subsets were previously replicated on the replica system as one or more corresponding replica data subsets among the plurality of replica nodes; the redistribution information is used by the replica system to redistribute one or more corresponding replica data subsets among a plurality of replica nodes from a previously replicated arrangement to a new replicated arrangement; and the one or more corresponding replica data subsets are redistributed among the plurality of replica nodes without requiring the one or more originator data subsets to be sent to the replica system during redistribution.
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18. A system, comprising:
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an interface configured to receive data redistribution information from an originator system, the redistribution information pertaining to redistribution of one or more originator data subsets among a plurality of originator nodes from an initial distribution arrangement to a new distribution arrangement; and one or more processors coupled to the interface and configured to use the redistribution information to redistribute one or more corresponding replica data subsets among a plurality of replica nodes from a previously replicated arrangement to a new replicated arrangement, wherein; the one or more originator data subsets were previously replicated on the replica system as one or more corresponding replica data subsets among the plurality of replica nodes; the redistribution information includes identification information of the originator data subsets, identification information of originator nodes comprising the initial distribution arrangement, and identification information of originator nodes comprising the new distribution arrangement; and the one or more corresponding replica data subsets are redistributed among the plurality of replica nodes without requiring the one or more originator data subsets to be sent to the replica system during redistribution.
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19. A method, comprising:
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receiving data redistribution information from an originator system, the redistribution information pertaining to redistribution of one or more originator data subsets among a plurality of originator nodes from an initial distribution arrangement to a new distribution arrangement; and using the redistribution information to redistribute one or more corresponding replica data subsets among a plurality of replica nodes from a previously replicated arrangement to anew replicated arrangement, wherein; the one or more originator data subsets were previously replicated on the replica system as one or more corresponding replica data subsets among the plurality of replica nodes; the redistribution information includes identification information of the originator data subsets, identification information of originator nodes comprising the initial distribution arrangement, and identification information of originator nodes comprising the new distribution arrangement; and the one or more corresponding replica data subsets are redistributed among the plurality of replica nodes without requiring the one or more originator data subsets to be sent to the replica system during redistribution.
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20. A computer program product, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions for:
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receiving data redistribution information from an originator system, the redistribution information pertaining to redistribution of one or more originator data subsets among a plurality of originator nodes from an initial distribution arrangement to a new distribution arrangement; and using the redistribution information to redistribute one or more corresponding replica data subsets among a plurality of replica nodes from a previously replicated arrangement to a new replicated arrangement, wherein; the one or more originator data subsets were previously replicated on the replica system as one or more corresponding replica data subsets among the plurality of replica nodes; the redistribution information includes identification information of the originator data subsets, identification information of originator nodes comprising the initial distribution arrangement, and identification information of originator nodes comprising the new distribution arrangement; and the one or more corresponding replica data subsets are redistributed among the plurality of replica nodes without requiring the one or more originator data subsets to be sent to the replica system during redistribution.
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Specification