Sap Ag

Hyoungjun Na

Juchang Lee

Chang Gyoo Park

Kyuhwan Kim

Methods, systems and computer-readable storage mediums encoded with computer programs executed by one or more processors for providing a compressed representation of a transaction token are disclosed. In an embodiment, a transaction token maintains statues of transaction to a database in a first data structure and a second data structure. The first data structure includes a plurality of identifiers respectively corresponding to the transactions to the database and a corresponding status of each identifier indicating whether a given transaction is open or closed, wherein the plurality of identifiers is maintained below a threshold number of identifiers. The second data structure includes a plurality of identifiers of transactions to the database beyond the threshold and whose status is open.

Compressed representation of a transaction token

Methods, systems and computer-readable storage mediums encoded with computer programs executed by one or more processors for providing a compressed representation of a transaction token are disclosed. In an embodiment, upon a receipt of a request for a write transaction at a slave server it is determined whether there exists an unassigned transaction identifier (TID) stored locally at the slave server as provided by a master server to the slave server prior to the receipt of the write request by the slave server. If there exists an unassigned TID at the slave server, the slave server is configured to assign the unassigned TID to the write transaction, otherwise the slave server is configured to request a plurality of unassigned TIDs from the master server, receive the plurality of unassigned TIDs, and assign one of the received unassigned TIDs to the write transaction. The write transaction is processed.

Growing community of inventors

Seoul, South Korea

Hyoungjun Na