发明名称 |
Stream recovery method, stream recovery program and failure recovery apparatus |
摘要 |
Stream data is structured including data tuples as a query process target and a recovery point tuple for indicating a position of the data tuples in the stream data. Upon detection of a failure at a computer, another computer reads position information in the stream data indicating a position of data tuples already subjected to the query process by a stream processing apparatus from a recovery points, uses the recovery point positioned lastly among the read recovery points as a reenter point of the input stream, and instructs a stream distribution apparatus to reenter the input stream starting from the reenter position into the other computer. |
申请公布号 |
US8140917(B2) |
申请公布日期 |
2012.03.20 |
申请号 |
US20100713056 |
申请日期 |
2010.02.25 |
申请人 |
SUETSUGU TOMOHIRO;WATANABE SATORU;KUBO ERI;HITACHI, LTD. |
发明人 |
SUETSUGU TOMOHIRO;WATANABE SATORU;KUBO ERI |
分类号 |
G06F11/00 |
主分类号 |
G06F11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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