METHOD, APPARATUS AND SYSTEM FOR ESTABLISHING SECONDARY INDEX IN DISTRIBUTED STORAGE SYSTEM

摘要

The present invention relates to a method for establishing secondary index in a distributed storage system, including: receiving user data sent by a user client, the user data containing key part and value part; determining a user table according to the user data; writing the user data into the user table; generating index data according to the user data; writing the index data into an index table corresponding to the user table, wherein the user table and the index table are established in one node of the distributed storage system and are bonded in one-to-one manner. The present invention exist in that by binding user child tables and indexes child table, the two remote writing operation acrossing nodes is reduced to one, the number of network requests is reduced greatly, and the performance is improved accordingly.