| 摘要 |
The present invention is adapted to the field of data storage. A method and apparatus for checking and synchronizing data blocks in a distributed file system are provided. The distributed file system includes a metadata server, data block servers and a storage medium, which are connected to each other; the metadata server specifies one of the data block servers in the same group as a master data block server, while takes the others as slave data block servers. The method includes: the metadata server initiating a data block checking request to the master data block server; the master data block server checking all the data block information managed by the slave data block servers in the group, synchronizing according to the checking result, and then reporting the checking and synchronization results to the metadata server; the metadata server updates the metadata information according to the reported checking and synchronization results. Therefore, the metadata server only takes very little time to fulfill the checking and synchronizing the database. |
