- 专利标题: Handling deletes with distributed erasure coding
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申请号: US16457615申请日: 2019-06-28
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公开(公告)号: US10938905B1公开(公告)日: 2021-03-02
- 发明人: Mikhail Danilov , Konstantin Buinov
- 申请人: EMC Corporation
- 申请人地址: US MA Hopkinton
- 专利权人: EMC Corporation
- 当前专利权人: EMC Corporation
- 当前专利权人地址: US MA Hopkinton
- 代理机构: Amin, Turocy & Watson, LLP
- 主分类号: H04L29/08
- IPC分类号: H04L29/08 ; G06F3/06 ; H03M13/25 ; H03M13/29 ; H03M13/00
摘要:
Inter-zone network traffic generated during deletion of a data chunk that has been replicated by employing geographically distributed (GEO) erasure coding is reduced. In one aspect, if a data chunk is to be deleted, partial coding chunks are generated by a source zone and provided to destination zones that store complete coding chunks for updating the complete coding chunks based on combining them with the received partial coding chunks. In another aspect, if a first data chunk is to be deleted and a second data chunk is to be replicated, partial coding chunks are generated by the source zone for each data chunk. Further, the partial coding chunks created for different data chunks can be combined to generate transforming chunks, which can then be transferred to the destination zones. The destination zones can then update the complete coding chunks based on combining them with the received transforming chunks.
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