Since the Web page data is always large-scale, the
construction of inverted indexes is a time-consuming
computing. On the other hand, the content of Web page
changes extremely rapidly, there is a need to periodically
crawl the Web and update the inverted indexes. Serial
inversion algorithm cannot meet the fast inversion
requirement. The cluster computing systems have advantages
of high-performance and low cost. So, by using cluster
computing system implementation of parallel indexers is
useful for establishing high-performance search engines