DISTRIBUTED STORAGE SYSTEM FOR MAINTAINING DATA CONSISTENCY BASED ON LOG AND METHOD FOR THE SAME

摘要

Based on the log variance to maintain data integrity storage systems and distributed storage methods It is provided. In a distributed storage system, generating a log of the node failure that can not be calculated and generated, on the basis of the generated log to maintain the integrity of data by performing the operation described above. The log can be stored in the other nodes in the distributed storage system, the node A requests the node storing the log fails to periodically try the calculation of the. Also, for data migration Yes tion, it is updated object before the end time set can be copied to the selected target node, replacing the failed node. The target node creates the log for updates the requested object the copying of the above, after the copy is completed, the object of the generation, on the basis of the generated log to update the object of the. ;