METHOD FOR PROCESSING OF DECODING BASED ON REAL-TIME DATA RECOVERY BASED ON CLIENT IN DISTRIBUTED FILE SYSTEM AND APPARATUS USING THE SAME

摘要

Disclosed is a decoding processing method based on client-based real-time data recovery in a distributed file system and an apparatus therefor. In the present invention, when a client-based file system constituting a distributed file system performs pre-reading of data blocks for the same erase coding group from a plurality of data servers, and an error occurs during pre-reading of data blocks, an error occurs. The block unit is stored in the block unit without deleting the data block that has been read before the operation, requests a parity block from the data server in which an error has occurred among multiple data servers, and performs a recovery operation based on the parity block. The read request is processed by decoding based on the data block stored in the data block and the data block normally read.