Amadeus S.a.s.

Dietmar Fauser

Donald Kossmann

Gustavo Alonso

Georgios Giannikis

Cedric Florimond

Philipp Unterbrunner

Jeremy Meyer

Jerome Daniel

Pierre Dor

Stéphane Monbel

Cyril Deguet

Renaud Arnoux-Prost

Samuel Burdese

Edouard Hubin

Marc Pavot

Vincent Masini

Cédric Florimond

Stephane Monbel

The method and system according to a preferred embodiment of the present invention allows ensuring consistency of the PNR record when it is handled within the subsystem controlled by the reservation interceptor module and including a plurality of OBEs. According to a preferred embodiment of the present invention the PNR context on open systems is centralized to avoid its fragmentation in the distributed environment, as gathering of all the context parts implies performance issues. In addition, instead of implementing a transaction session protocol to handle a start of transaction, intermediate updates and a final commit or rollback on the PNR context, the principle of the service interceptor architecture is to delegate the functional queries with the current user PNR context which will be modified in the central repository of PNR context only at response time when the whole functional use-case is finished.

Method and system for centralized reservation context management on multi-server reservation system

A distributed data store includes a storage layer comprised of a plurality of storage nodes, each storage node configured to receive and queue table operations, and an aggregation layer comprised of aggregator nodes configured to route table operations to storage nodes in the storage layer and merge results of table operations returned by storage nodes in the storage layer. Each storage node includes in part scan threads dedicated to continuous and full scanning of segments of a table that are respectively associated with processor cores upon which such scan threads are running.

Continuous full scan data store table and distributed data store featuring predictable answer time for unpredictable workload

A method for storing and retrieving data in a storage node of a data store and storage node of a data store, storing in main-memory at least one segment of a relational table. The storage node includes at least one computational core running at least one scan thread each dedicated to the scanning of one of the at least one segment. At least one scan thread uniquely, continuously and exhaustively scans the dedicated segment of the relational table. The storage node receives and processes batches of query and update operations for the at least one segment of the relational table. The query and update operations of a batch are re-indexed at beginning of each scan by the scan thread. Then, the indexed query and update operations of a batch are independently joined to data records of said segment that match with predicates of the indexed query and update operations.

A computer-implemented method for providing a user with a consistent view of user session. The method includes providing application servers with data storage means for storing part of the user context for that user session, defining for each user session a set of application servers having each an affinity with the user session. At a routing means, receiving a request and routing transactions of the user session toward the application servers, assigning to the user session a correlation record (DCX) arranged to comprise Affinity Keys, each Affinity Key indicating an application server that has an affinity with the user session for a given software application, and propagating the correlation record with transactions, allowing thereby the routing means to target the application servers that are linked to the user context of that user session and that process the software application relevant to process the transaction.

Method and system for providing a session involving a plurality of software applications

A method for loading flight schedule modifications in an air travel computerized reservation system, wherein: the flight schedule database is updated; the reservations concerned by the flight schedule modifications are reassigned to update the reservation inventory database. The method for loading flight schedule modifications includes the following steps: receiving at least one lot of modifications containing flight schedule modification data, retrieving individual modifications contained in the lot and storing in a register in the form of records for future scheduling, simulating reassignment of the reservations concerned by the flight schedule modification, by accessing with the reservation distribution server both the records and the flight schedule database, final updating of the flight schedule databases and of the reservation inventory. The method is useful for updating databases during flight schedule modifications in computerized reservation systems.

Method for loading flight schedule modifications

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Dietmar Fauser