SIGIR'98 posters: Efficient Search Server Assignment in a Disproportionate System Environment
Efficient Search Server Assignment in a Disproportionate System Environment
Toru Takaki
Laboratory for Information Technology,
NTT Data Corporation,
66-2 Horikawa-cho, Saiwai-ku, Kawasaki, Kanagawa 210-0913 JAPAN
Tsuyoshi Kitani
Laboratory for Information Technology,
NTT Data Corporation,
66-2 Horikawa-cho, Saiwai-ku, Kawasaki, Kanagawa 210-0913 JAPAN
Abstract
An efficient method is proposed for assigning jobs to search servers in
cluster-type system environments when search server performance levels
differ. The assignment is done by estimating the search time for each
query, based on factors such as the number of databases to be retrieved by
the query and the performance of the servers. Search processing efficiency
is improved by assigning time-consuming jobs to high-performance servers,
regardless of the order of request arrival. Experimental results showed
a 10 to 50% shortening of the overall response time.
SIGIR'98
24-28 August 1998
Melbourne, Australia.
sigir98@cs.mu.oz.au.