公开(公告)号：US10303567B2

公开(公告)日：2019-05-28

申请号：US13968278

申请日：2013-08-15

Applicant: ENTIT Software LLC

Inventor： James L. Finnerty ,  Jaimin M. Dave ,  Stephen G. Walkauskas

IPC: G06F11/00 ,  G06F11/20 ,  G06F11/14

Abstract: 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.