| 发明名称 |
MANAGING DATABASE NODES |
| 摘要 |
A method for managing database nodes includes determining that a data segment is on a failed node. The data segment is referenced by an operation of a query plan. The method includes selecting a victim node based on a segmentation ring, a buddy node for the data segment, a plurality of remaining operational nodes, and a predetermined selection parameter. The method includes generating a query plan such that the victim node performs double duty for operations accessing the data segment from a buddy projection on the victim node, and operations accessing a data segment for a primary projection of the victim node. |
| 申请公布号 |
US2015052383(A1) |
申请公布日期 |
2015.02.19 |
| 申请号 |
US201313968278 |
申请日期 |
2013.08.15 |
| 申请人 |
Hewlett-Packard Development Company, L.P. |
发明人 |
Finnerty James L.;Dave Jaimin M.;Walkauskas Stephen G. |
| 分类号 |
G06F11/20 |
主分类号 |
G06F11/20 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for managing database nodes, the method comprising:
determining that a data segment is on a failed node, the data segment being referenced by an operation of a query plan; selecting a victim node based on a segmentation ring, a buddy node for the data segment, a plurality of remaining operational nodes, and a predetermined selection parameter; and generating a query plan such that the victim node performs double duty for operations accessing the data segment from a buddy projection on the victim node, and operations accessing a data segment for a primary projection of the victim node. |
| 地址 |
Houston TX US |
