Log-based distributed transaction management

A non-transitory computer-accessible storage medium storing program instructions that when executed on one or more processors:

• obtain an indicator of a cross-data-store transaction request including a first storage operation directed to a first data store and a second storage operation directed to a second data store, wherein a type of the first data store to which the first storage operation of the cross-data-store transaction request is directed is a relational database type, a non-relational database type, or an unstructured object store type and wherein a type of the second data store to which the second storage operation of the cross-data-store transaction request is directed is a different type of data store than the type of the first data store;
• transmit as first voting transition request indicative of the first storage operation to a first log-based transaction manager of the first data store, and a second voting transition request indicative of the second storage operation to a second log-based transaction manager of the second data store;
• receive, based at least in part on a result of respective log-based conflict detection analyses performed by the first log-based transaction manager and the second log-based transaction manager, respective responses to the first and second voting transition requests;
• and
• send, based at least in part on the respective responses, a termination status for the cross-data-store transaction request to the first and second log-based transaction managers, wherein the termination status comprises a committed status or an aborted status.

A method, comprising:

• obtaining an indication of a cross-data-store transaction request including a first storage operation directed to a first data store and a second storage operation directed to a second data store, wherein the first data store and the second data store are different types of data stores;
• transmitting a first voting transition request indicative of the first storage operation to a first log-based transaction manager of the first data store, and a second voting transition request indicative of the second storage operation to a second log-based transaction manager of the second data store;
• receiving, based at least in part on a result of respective log-based conflict detection analyses performed by the first log-based transaction manager and the second log-based transaction manager, respective responses to the first and second voting transition requests, wherein the respective log-based conflict detection analysis performed by the first log-based transaction manager comprises an examination of at least a portion of a first persistent log of state transition records of the first data store;
• and
• sending, based at least in part on the respective responses, a termination status for the cross-data-store transaction request to the first and second log-based transaction managers, wherein the termination status comprises a committed status or an aborted status.