公开(公告)号：US20170359406A1

公开(公告)日：2017-12-14

申请号：US15177104

申请日：2016-06-08

申请人： International Business Machines Corporation

发明人： Seraphin B. Calo ,  Geeth R. de Mel ,  Keith w. Grueneberg ,  Jorge J. Ortiz ,  Xiping Wang ,  David A. Wood, III

IPC分类号： H04L29/08

CPC分类号： H04L67/10 ,  H04L67/02 ,  H04L67/16

摘要： Techniques for adaptive query targeting in a dynamic distributed computing environment are provided. In one aspect, a method for adaptive query targeting in a distributed computing system having two or more cooperating nodes is provided. The method includes the steps of: using a peer selection criteria to select one or more of the nodes as target peers for a query from a querying node; leasing the query to the target peers for a given length of time via a lease having a given lifetime; periodically refreshing the query during the lifetime of the lease by re-evaluating the peer selection criteria such that the query persists on one or more of the target peers for the lifetime of the lease; and having the query removed from the target peers when the lease expires.