| 摘要 |
Assuring recovery from failure of a storage server in a distributed column chunk data store of operably coupled storage servers, includes: partitioning a data table into chunks; implementing a distribution scheme with a specified level of redundancy for recovery of one or more failed servers among multiple storage servers; distributing the column chunks according to the distribution scheme; calculating column chunk parity; storing the calculated column chunk parity; managing metadata for the column chunk data store; and updating the metadata for distributing the column chunks among remaining storage servers upon receiving an indication to remove a storage serve.
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