The research of distributed bitmap index

With the explosive growth of data, the performance of querying the huge amounts of data is more and more important. Simply Method of improving the performance of stand-alone already can't meet the demand. We need to handle huge amounts of data with distributed technology. However, traditional ways are just outrageous abuse of distributed resources, there are a lot of methods to improve efficiency and throughput. In terms of saving resources effectively, index is an indispensable tool. This article embarks from the traditional indexing mechanism, based on the advantage of the traditional methods in combination with the advantages of bitmap index, put forward a kind of extended local index mechanism, which is effective in reducing the traditional local indexes for distributed resources unnecessary overhead. At the same time it also improve the query efficiency. Finally, the test results show that the improved algorithm is efficient.