Abstract: A transaction pattern table is maintained using a transaction stream monitor that monitors a transaction stream. Transactions are completed within a transaction processing system, and transactions are replicated from a source database to a target database by a replication engine. The transaction pattern table includes a plurality of records. Each record includes a transaction pattern. Each completed transaction is a series of one or more transaction steps or operations, and the transaction pattern is a series of one or more transaction steps or operations of the completed transaction. In operation, each transaction step or operation is analyzed in the transaction stream by the transaction stream monitor. It is then detected as to whether a transaction step or operation begins a new transaction.

Abstract: Methods are provided for dynamically improving driving performance of a moving vehicle that is traversing a land surface using a flywheel, an active element, and a controller. The controller predicts the directional change of the moving vehicle, detects initiation of the predicted directional change of the moving vehicle, determines or estimates an incremental directional change of the moving vehicle that is currently needed to navigate a portion of the predicted directional change, and controls the active element to slow down or further spin up the flywheel to reduce traction that is needed between the wheels of the vehicle and the land surface to navigate the determined incremental directional change of the moving vehicle. The flywheel is maintained in a fixed orientation with respect to the body of the moving vehicle during the spinning up or slowing down of the flywheel.

Abstract: A method is provided for performing transaction processing in a system. The system includes a plurality of processors and a corresponding table. Each processor executes the same transaction. Two of the processors receive a request to process the same transaction. Each of the two processors execute the request to process the same transaction. The executing of the request generates the data and at least some of the data is expected diverging data. Each of the two processors create indicia from the data. Some of the indicia is diverging indicia generated from the expected diverging data. The same transaction tag is assigned to each of the indicia. The correspondence table is populated with the transaction tag and the expected diverging data, thereby mapping the diverging indicia created by each of the two processors that executed the same transaction. The indicia associated with the same transaction tag are compared to each other.

Abstract: Methods are disclosed for selectively controlling access to a resource that is accessible to multiple nodes in a multi-node system or multiple processors in a multi-processor system to prevent hackers, malware, and ransomware attacks. The multi-node or multi-processor systems receive both matching and non-duplicated requests. In operation, each node or processor receives either a matching or non-duplicated request to access the resource. For the matching request, indicia of the request to access the resource is computed at each node or processor and is then compared between nodes or processors. Access to the resource is given to a node or processor when the computed indicia matches. For the non-duplicated request, a determination is made as to whether direct access to the resource is authorized for the request, and, if direct access is authorized, access to the resource is given to a node or processor.

Abstract: Databases of a multi-node system each have a first subset of data that match each other and which are intended to be kept in synchronization with each other. At least one of the databases has a second subset of data that intentionally does not match a subset of data in at least one of the other databases and which is not kept in synchronization with the at least one of the other databases. Each node receives a plurality of matching request requests to perform an action on data in the database associated with each node. Indicia of the request to be performed on data in the database associated with each node is computed and is sent to a comparator which outputs a comparison result for each of the matching requests. First or second follow-up actions are performed respectively when the result of the comparison shows a match or mismatch.

Abstract: An apparatus and method are provided for adjusting an electrical configuration of a plurality of components of an electrical network associated with a vehicle in order to tune electrical characteristics of the electrical network to continuously match a dynamically changing desired mode of operation of the electrical network associated with the vehicle.

Abstract: An automated method is provided for comparing a source database and a target database that are intended to be kept in synchronization with each other. An application processes transactions that are posted to the source database, and a synchronization process processes transactions that are posted to the target database. Change log data is chunked from a change log associated with the source database to create first chunks of change log data. Change log data is also chunked from a change log associated with the target database to create second chunks of change log data. A comparison engine compares representations of the first chunks of change log data with representations of the second chunks of change log data, wherein the second chunks of change log data correspond to the same respective first chunks of change log data that were made to the source database and kept in synchronization with the target database via the synchronization process.

Abstract: A method is provided for validating transactions in a system that includes indeterministic ordering of change log events by using deterministic indicia. At least some of the change log events include indeterministic values. The system includes a plurality of nodes. Each node in the system includes an instance of a database used by an application, and a change log associated with the instance of the database used by the application. Each node redundantly executes the same transactions to be validated. Each transaction includes one or more data manipulation language (DML) or data definition language (DDL) operations. Results of the DML or DDL, operations are stored in the change log as change log events, wherein the order of the change log events stored in the change log on one node is in a different order than the order of change log events stored in the change log of at least one of the other nodes.

Abstract: Methods are provided for preventing constraint violations at a target database by a database replication system. The database replication system replicates database transactions from a change log of a source database to the target database. Each source database and each target database have one or more tables, and at least one of the target database tables has one or more constraints. The database replication system replicates database transactions from a change log for the source database to the target database. Each of the source database tables has an associated change log disk cache. For each database transaction, a database change is detected to the at least one of the source database tables that potentially causes a constraint violation at the target database as a result of one or more of the target database tables having one or more constraints.

Abstract: A computer program product is provided for modifying a crankshaft angle of an internal combustion engine (ICE). The ICE includes a crankshaft, and a crankshaft angle sensor. The vehicle includes an energy converter and an energy storage unit. The energy converter is configured to be connected to the crankshaft of the ICE. The energy storage unit is configured to deliver energy to the energy converter when the energy converter acts as a motor, and to store energy output from the energy converter when the energy converter acts as a generator. A current ideal crankshaft angle is calculated. A current slip angle is calculated using an output of the crankshaft angle sensor. The energy converter is activated as a motor to increase the current crankshaft angle when the current slip angle is greater than a predetermined upper threshold value, and the energy converter is activated as a generator to decrease the current crankshaft angle when the current slip angle is less than a predetermined lower threshold value.

Abstract: An automated method is provided for comparing a first database table and a second database table with each other to produce a table of differences therebetween. The first database table and the second database table include one or more subsets of data that are intended to match each other. The first database table and the second database table each include multiple rows, each row having multiple columns. A first set of indicia is generated comprising indicia for a subset of the columns of each of the multiple rows of a subset of the first database table, and a second set of indicia is generated comprising indicia for a subset of the columns of each of the multiple rows of a subset of the second database table. The second set of indicia are generated without regard to an original order of the columns in the second database.

Abstract: An apparatus and method are provided for adjusting an electrical configuration of a plurality of components of an electrical network associated with a vehicle in order to tune electrical characteristics of the electrical network to continuously match a dynamically changing desired mode of operation of the electrical network associated with the vehicle.

Abstract: Tire traction is dynamically increased in a vehicle by performing a sequence of steps. The vehicle includes a controllable suspension having a damper, a spring, and an active element, a suspension controller, and a controllable aerodynamic element. The body of the vehicle is positioned at a level which allows for a predetermined amount of upward suspension travel. The suspension controller receives a trigger after the body of the vehicle is positioned at a level which allows for a predetermined amount of upward suspension travel. The suspension controller generates a first control signal upon receipt of the trigger. The first control signal is sent to the active element to generate the positive impulse. The positive impulse causes application of force to the wheel of the vehicle in a downward direction, thereby dynamically increasing tire traction.

Abstract: Actions are performed on data in databases of a multi-node system. Each node includes an indicia engine and each node has access to a respectively associated database. Each of the databases has a first subset of data that match each other and which are kept in synchronization with each other. At least one of the databases has a second subset of data that intentionally does not match a subset of data in at least one of the other databases and which is not kept in synchronization with the at least one of the other databases. In operation, each node receives a plurality of matching requests to perform an action on data in the database associated with each node. The indicia engine at each node computes, for each of the matching requests, indicia of results of the action performed on data in the database associated with each node.

Abstract: Commit latency is reduced for pending transactions. The transactions are replicated from a source database to a target database by a replication engine. The pending transaction is incomplete in either the source or the target database. A transaction pattern table is provided that includes a plurality of records, each record being defined by a transaction pattern identifier. Each record includes a transaction pattern and a metric of occurrence of the transaction pattern. A comparison is made of the series of one or more transaction steps or operations of a pending transaction to the transaction patterns in the transaction pattern table, and a subset of transaction patterns in the transaction pattern table are identified that are potential candidates for matching the pending transaction. The pending transaction is categorized using the metric of occurrence of the transaction pattern for each transaction pattern in the subset of transaction patterns.

Abstract: A method and apparatus are provided for processing a document and validating data integrity and reliability of document processing results. The document includes one or more data collection areas which are located in and are part of the document and which are configured to receive input by a person who enters information in the one or more data collection areas, and a unique identifier which is located in and is part of the document. In operation, a document is received at the document distributor which distributes an electronic representation of the document to each of two or more document processing systems, each of which has an associated database.

Abstract: A method and system are provided for comparing a first database table and a second database table with each other to produce a table of differences therebetween. The first database table and the second database table include one or more subsets of data that are intended to match each other, and the first database table and the second database table each include multiple rows. Indicia is generated for each of the multiple rows of a subset of the first database table, and each of the multiple rows of a subset of the second database table. The generated indicia for each of the multiple rows of the subset of the first database table are compared with the generated indicia for the subset of each of the multiple rows of the subset of the second database table, on a row-by-row basis, wherein the comparing occurs without regard to an original order of the rows in either the first database table or the second database table.

Abstract: An automated method and apparatus are provided for comparing a first database and a second database that are intended to be kept in synchronization with each other. Applications process changes that are posted to the first database and the second database. Changes made to the first database are applied to the second database, and vice-versa. Changes made to the first database resulting from changes posted to the first database are collected into a first change log. Changes made to the second database resulting from changes posted to the second database are collected into a second change log. Representations of the changes that correspond to the same respective changes in the change logs are compared with each other. Corrective action is performed when the comparison indicates that the corresponding representations of the changes in the first change log and the second change log do not match.

Abstract: A method is provided for performing transaction processing in a system. The system includes a plurality of nodes. Each node in the system includes a processor, an application executing in the processor, and a local queue. Each node executes multiple user transactions. Each transaction includes a BEGIN step, and one or more data manipulation language (DML) or data definition language (DDL) operations. In operation, two of the nodes are selected to receive the same user request to process the transaction. The processor at each of the two nodes executes in the application the same user request to process the transaction. Local indicia is created at each of the two nodes from the outcome of the transaction steps and operations of the transaction and is then exchanged with the other of the two nodes. The processor at each of the two nodes puts on their respective local queues the local indicia created at the same node as the processor, and the local indicia received from the other of the two nodes.

Abstract: An apparatus and method are provided for adjusting an electrical configuration of a plurality of components of an electrical network associated with a vehicle in order to tune electrical characteristics of the electrical network to continuously match a dynamically changing desired mode of operation of the electrical network associated with the vehicle.