Code block resynchronization for distributed multi-mirror erasure coding system

Code block resynchronization for distributed multi-mirror erasure coding system

Techniques are disclosed for resynchronizing a node of a distributed storage system with other nodes of the distributed storage system. Some embodiments presented herein include a computer-implemented method for resynchronizing a node of a distributed storage system with other nodes of the distribut...

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Hauptverfasser: Xiang, Enning, Xu, Yiqi
Format: Patent
Sprache:eng
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CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator Xiang, Enning
Xu, Yiqi
description Techniques are disclosed for resynchronizing a node of a distributed storage system with other nodes of the distributed storage system. Some embodiments presented herein include a computer-implemented method for resynchronizing a node of a distributed storage system with other nodes of the distributed storage system. The method comprises identifying an out-of-sync block of the node. The method further comprises determining that the out-of-sync block is a code block, wherein the code block is generated by performing an erasure coding operation on data blocks which are stored in the other nodes. The method further comprises locating a mirrored code block in an address space maintained for mirrored code blocks. The method further comprises storing contents of the mirrored code block in a storage location of the out-of-sync block.
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Some embodiments presented herein include a computer-implemented method for resynchronizing a node of a distributed storage system with other nodes of the distributed storage system. The method comprises identifying an out-of-sync block of the node. The method further comprises determining that the out-of-sync block is a code block, wherein the code block is generated by performing an erasure coding operation on data blocks which are stored in the other nodes. The method further comprises locating a mirrored code block in an address space maintained for mirrored code blocks. 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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Code block resynchronization for distributed multi-mirror erasure coding system
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