48 results about "Execution planning" patented technology

Systems and methods are disclosed for executing services in an advanced planning environment. The services may comprise planning service that are executed using one or more objects stored in a database. Further, a planning profile may be provided, the planning profile including at least one process block containing a list of planning services to be executed. A method for executing services may include reading the planning profile, including a selection profile of the at least one process block of the planning profile. The selection profile may comprise selection criteria for specifying which of the objects stored in the database are required for processing the at least one process block. Further, the method may include accessing the objects stored in the database based on the selection criteria of the selection profile, and executing each planning service in accordance with the list of planning services and the objects accessed from the database.

An electronic system is provided for facilitating configuration management of a service or application distributed over a plurality of nodes that can be in single datacenter or network or span multiple ones The system includes a receiver for receiving a system model, a reasoner, and a workflow engine. The reasoner automatically processes the system model received by the receiver to produce an executable plan for the distributed service. The workflow engine includes a temporal sequencer for dispatching commands to the nodes to carry out the executable plan in a temporally coordinated manner, thereby providing the distributed service. Also provided is a method for facilitating configuration management of a distributed service.

A system comprised of trigger mechanisms, a staging area, and an archived warehouse metadata table is used to extract, store, and archive extract, transform, and load (ETL) tasks from operational metadata in a data-warehousing environment. Operational metadata is comprised of ETL information; ETL task execution statuses, run number, definitions, control flow, and execution schedules. Specified ETL information is monitored and captured so that it may be extracted from operational metadata and transformed every time a trigger mechanism activates an update of stored data. Administrator-specified ETL task information is then stored in staging table. At specified intervals a staging table is refreshed with changes in operational data for each of the administrator-specified monitored and captured ETL tasks. Overwritten data, or outdated ETL task information, is then moved and stored in an archived warehouse metadata table. In one embodiment, archives are queried to generate reports analyzing the status of ETL tasks.

The invention provides a resource description framework (RDF) distributed engine and an incremental updating method. The RDF distributed engine is deployed on a computer cluster. The method comprises: receiving a query language and an SPARQL statement through a master node; analyzing the SPARQL statement to be converted into a query sub-graph; determining corresponding slave nodes of RDF data in the SPARQL statement from N slave nodes, and generating an operation log and an executive plan according to the query sub-graph; sending the SPARQL statement, the executive plan and the operation log to a backup manager in the master node, and sending the SPARQL statement and the executive plan to the corresponding nodes; and performing backup on the data in the corresponding slave nodes, and updating a memory in an incremental mode by the corresponding slave nodes according to the executive plan. In the process, a query analyzer capable of analyzing the SPARQL statement is added, so that the RDF distributed engine can support a data updating statement and then support a dynamic data source.

The invention provides a path mode inquiring system for massive image data. The path mode inquiring system comprises data storage service module, a data updating module, a coordination service module, an inquiring management service module and a parallel calculating service module. The data storage service module is used for storing image data at distributed clusters and providing data reading functions for other modules. The data updating module is used for combining updated blogs into data files. The coordination service module is used for coordinating status synchronization of service computers during calculating. The inquiring management service module is used for managing member computers, preprocessing inquiries, distributing inquiring tasks, and collecting inquiring results. The parallel calculating service module is used for executing actual inquiring services. By the path mode inquiring system, users' inquiring of massive image data is facilitated greatly, and inquiring execution of massive image data is improved to a great extent.

The invention discloses a realization method of full-text retrieval based on a Spark framework and belongs to the field of big-data processing. According to the method, a to-be-executed SQL statementis received, and a syntax tree is generated and converted into corresponding logic plans; metadata of retrieving all tables are retrieved from Hive, fields supporting full-text retrieval are sought, and data blocks are initially cropped through field hash indexes; disk locations where the data blocks are specifically stored are acquired from file metadata according to a query condition; the logicexecution plans are converted into a set of tasks which can be executed in a distributed manner, and target nodes and target processes where the tasks are specifically executed are determined throughall the data block locations; and the tasks are distributed and executed, execution results are summarized, and a final result is acquired by iteration. The method has higher efficiency, can quickly complete full-text retrieval of massive data, has very high practicality and a very large application range in the field of big-data processing, and has very wide application prospects.

The invention relates to a processing method for speed feedforward and torque feedforward in a CANopen servo system, which comprises the steps that a trajectory planner receives a target control command and calculates the type of position instruction curves, the position of an acceleration turning point and the position of a deceleration turning point; the trajectory planner judges whether servo control is started or not; if not, a speed feedforward curve, a torque feedforward curve and the position instruction curves are all zero; if so, a position accumulated value planned up to the previous servo control period is compared with the acceleration turning point position, the deceleration turning point position and a target position, acceleration planning, deceleration planning, constant speed planning or non-execution planning is executed according to a comparison result so as to acquire a speed feedforward value and a torque feedforward value of the current servo control period; a position increment value of the current servo control period and a position accumulated value planned up to the current servo control period are calculated; a plurality of position increment values form a position increment instruction curve, a plurality of position accumulated values form a position accumulated value instruction curve, a plurality of speed feedforward values form a speed feedforward curve, and a plurality of torque feedforward values form a torque feedforward curve.

A method, apparatus and program product to optimize a database query. A query plan is generated for the database query where the query plan includes first and second subplans. Cached optimization data associated with the first subplan and generated during evaluation of another query plan for a previous query that uses the first subplan is retrieved. The first subplan is evaluated for resource cost using the retrieved optimization data. The second subplan is also evaluated for resource cost. The query plan is then evaluated for resource cost based upon the evaluations of resource cost for the first and second subplans. A query plan is selected based on evaluations of resource cost and the plan is executed to generate a result set.

An engine control system for managing a schedule of execution of engine control tasks is provided. The system works to schedule execution of the engine control tasks upon receipt of requests to initiate the engine control tasks. The system determines a sequence of execution of the engine control tasks and allocates execution times for which the engine control tasks are to be executed so as to provide chances of execution of the engine control task as evenly as possible. The system may determine required time-sharing ratios of the engine control tasks based on statuses of execution of the engine control tasks.