Scheduling with Compensation in Multi- database Systems
نویسندگان
چکیده
In A multidatahase system integrates a set of autonomous database systems to provide global database functions. This paper investigates a correctness criterion for the execution of local and global transactions in the error-prone multidatahase environment. The compensation technique is used to preserve the semantic atomicity of global transactions. We examine in detail the effects created by the value dependencies present among the subtransactions of a global transaction on concurrency control. This investigation assumes only the serializability and recoverahility of local database systems. A global transaction scheduling mechanism is grounded upon the proposed theory.
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