发明申请
- 专利标题: DECENTRALIZED RECORD EXPIRY
- 专利标题(中): 分散式记录过期
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申请号: US11863902申请日: 2007-09-28
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公开(公告)号: US20090089313A1公开(公告)日: 2009-04-02
- 发明人: Brian Cooper , Daniel Weaver , Michael Bigby , Utkarsh Srivastava , Philip L. Bohannon , Ramana Yerneni
- 申请人: Brian Cooper , Daniel Weaver , Michael Bigby , Utkarsh Srivastava , Philip L. Bohannon , Ramana Yerneni
- 申请人地址: US CA Sunnyvale
- 专利权人: YAHOO! INC.
- 当前专利权人: YAHOO! INC.
- 当前专利权人地址: US CA Sunnyvale
- 主分类号: G06F17/30
- IPC分类号: G06F17/30
摘要:
A technique is described that reduces the complexity and resource consumption associated with performing record expiry in a distributed database system. In accordance with the technique, a record is checked to see if it has expired only when it has been accessed for a read or a write. If at the time of a read a record is determined to have expired, then it is not served. If at the time of a write a record is determined to have expired, then the write is treated as an insertion of a new record, and steps are taken to treat the insertion consistently with regard to the previous expired version. A background process is used to delete records that have not been written to or actively deleted by a client after expiration.
公开/授权文献
- US07783607B2 Decentralized record expiry 公开/授权日:2010-08-24