A Checkpointing Scheme for Heterogeneous Database Systems

Abstract

For efficient construction of the distributed database from media failure, a transaction-consistent checkpointing algorithm is proposed for heterogeneous distributed database systems. For full design autonomy and increased availability on the heterogeneous distributed database systems, the proposed algorithm never enforces termination of normal operations of transactions and changes of checkpointing algorithms in local database systems. The global checkpoints generated by the algorithm can be used to reconstruct the previous consistent states of a database efficiently