Abstract: An information processing system includes: a storage device configured to store first clock time scheduled for execution of a task; and a processing device configured to: execute a task at second clock time earlier than first clock time scheduled for execution of the task; control the executing of the task not to execute the task at the first clock time when data used in the task is not updated in a period from the second clock time to the first clock time; and control the executing of the task to re-execute the task either at the first clock time or at third clock time earlier than the first clock time when the data is updated in the period from the second clock time to the first clock time.

Abstract: An information processing system includes: a storage device configured to store first clock time scheduled for execution of a task; and a processing device configured to: execute a task at second clock time earlier than first clock time scheduled for execution of the task; control the executing of the task not to execute the task at the first clock time when data used in the task is not updated in a period from the second clock time to the first clock time; and control the executing of the task to re-execute the task either at the first clock time or at third clock time earlier than the first clock time when the data is updated in the period from the second clock time to the first clock time.

Abstract: An information processing method for determining a pattern that indicates an arrangement order of the plurality of tasks from upstream to downstream of a stream is performed by a computer. The method includes acquiring a plurality of patterns to be candidates of an arrangement order of the plurality of tasks from upstream to downstream of the stream in a case of executing the plurality of tasks using a stream processing format; specifying, for each pattern of the plurality of acquired patterns, an amount of data to be reintroduced from one task of the plurality of tasks to another task located upstream side of the stream with respect to the one task; and determining the pattern from among the plurality of patterns based on the specified amount of data to be reintroduced for the each pattern.

Abstract: An information processing method includes accepting a query including first information for specifying a target period and a condition for extracting a processing result, selecting, based on the query, a processing unit that has a processing result updated in the target period from among a plurality of the processing units included in the stream processing infrastructure by referring to correspondence information representing, in association with each other, second information indicating each of the plurality of the processing units and third information indicating a timing of a last update of a processing result by the processing unit, and transmitting, to the selected processing unit, a request to execute a predetermined process on the processing result that has updated in the target period and satisfies the condition.

Abstract: A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process. The process includes, in response to reception of a first dataset, starting to execute a task on the first dataset, when execution of the task involves execution of a first process requesting an access to information processing system, cancelling the execution of the task, and making the access to the information processing system for the first process, in response to reception of a second dataset, starting to execute the task on the second dataset, continuing the execution of the task on the second dataset when the execution of the task on the second dataset does not involve execution of the first process, and when an access result for the access is received, re-executing the task on the first dataset after the execution of the task on the second dataset is completed.

Abstract: An information processing apparatus includes: a memory and a processor. The processor, coupled to the memory, is configured to: determine, for each task of a plurality of tasks executed in a distributed stream data processing platform, a log score based on an indication associated with easiness of occurrence of a failure; and output a log message for each task of the plurality of tasks at an output frequency based on a log score of each task and a log score of at least one of an upstream task located upstream of each task and a downstream task located downstream of each task.

Abstract: An information processing system includes: a first storage device configured to store state data corresponding to processing executed on input data that is stored in a buffer; and a processing device configured to: calculate a first time point when the buffer overflows from an input rate of the input data to the buffer, and determine a second time point by using the input rate, an update amount of the state data per unit time, a first throughput of the backup processing on the state data from the first storage device to the second storage device, a second throughput of restoration processing on the state data from the second storage device to the first storage device, and a third throughput of the processing, the second time being a time point that is before the first time point and when backup processing on the state data is to be started.

Abstract: An apparatus performs transmission and reception of messages via which a plurality of services coordinate with each other in a message control system. The apparatus integrates a plurality of messages into a first message, based on relationships between message transmission and message reception caused by the plurality of services, and transmits the first message to another information processing device in the message control system. The apparatus receives a second message integrated by another information processing device, and decompose the received second message into messages including a third message. The apparatus further integrates the decomposed third message and a fourth message into a fifth message, and transfers the integrated fifth message to another information processing device.

Abstract: An information processing method for determining a pattern that indicates an arrangement order of the plurality of tasks from upstream to downstream of a stream is performed by a computer. The method includes acquiring a plurality of patterns to be candidates of an arrangement order of the plurality of tasks from upstream to downstream of the stream in a case of executing the plurality of tasks using a stream processing format; specifying, for each pattern of the plurality of acquired patterns, an amount of data to be reintroduced from one task of the plurality of tasks to another task located upstream side of the stream with respect to the one task; and determining the pattern from among the plurality of patterns based on the specified amount of data to be reintroduced for the each pattern.

Abstract: A system for privacy protection includes a processor and a terminal including a location detection device. The processor performs: identifying a presence possible ranges of the terminal at a first time and at a second time earlier than the first time from a combination of information on a first region including the location at the first time, and information on a second region including the location at the second time and having been already transmitted to an external apparatus; determining whether each of the identified presence possible ranges satisfies a preset condition for a presence possible range that may be known by a third party; when the condition is not satisfied, transmitting the information on a third region including the first region and a region other than the first region, as information on a region where the terminal is present at the first time, to the external apparatus.

Abstract: An information processing system backs up an internal state of an arithmetic-device in response to a reception of a message to instruct a backup of the internal state for a number of first paths through which data are input to the arithmetic-device, acquires information of a waiting-time until the arithmetic-device receives the message for the number of first paths, determines whether or not the waiting-time is equal to or more than a first threshold, based on the acquired information, and changes a first configuration that a second arithmetic-device is coupled to a first storage-device through a first arithmetic-device and coupled to a second storage-device through a third arithmetic-device, to a second configuration that the second arithmetic-device is coupled to the first storage-device through the first arithmetic-device, a fourth arithmetic-device, a third storage-device, and a fifth arithmetic-device, when determined that the waiting-time is equal to or more than the first threshold.

Abstract: An information processing system includes: a first storage device configured to store state data corresponding to processing executed on input data that is stored in a buffer; and a processing device configured to: calculate a first time point when the buffer overflows from an input rate of the input data to the buffer, and determine a second time point by using the input rate, an update amount of the state data per unit time, a first throughput of the backup processing on the state data from the first storage device to the second storage device, a second throughput of restoration processing on the state data from the second storage device to the first storage device, and a third throughput of the processing, the second time being a time point that is before the first time point and when backup processing on the state data is to be started.

Abstract: An information processing system includes: a storage device configured to store first clock time scheduled for execution of a task; and a processing device configured to: execute a task at second clock time earlier than first clock time scheduled for execution of the task; control the executing of the task not to execute the task at the first clock time when data used in the task is not updated in a period from the second clock time to the first clock time; and control the executing of the task to re-execute the task either at the first clock time or at third clock time earlier than the first clock time when the data is updated in the period from the second clock time to the first clock time.

Abstract: An information processing apparatus includes: a memory; and a processor coupled to the memory and configured to: display content on a basis of information on the content retained in the memory of the information processing apparatus; determine a possibility of transfer from the information processing apparatus to another apparatus for each piece of the content which is displayed at the information processing apparatus, with reference to the information retained in the memory; and transfer the information on the content to the another apparatus that is a transfer destination, when determining that the possibility of transfer exists.

Abstract: An information processing apparatus includes: a memory and a processor. The processor, coupled to the memory, is configured to: determine, for each task of a plurality of tasks executed in a distributed stream data processing platform, a log score based on an indication associated with easiness of occurrence of a failure; and output a log message for each task of the plurality of tasks at an output frequency based on a log score of each task and a log score of at least one of an upstream task located upstream of each task and a downstream task located downstream of each task.

Abstract: An apparatus performs transmission and reception of messages via which a plurality of services coordinate with each other in a message control system. The apparatus integrates a plurality of messages into a first message, based on relationships between message transmission and message reception caused by the plurality of services, and transmits the first message to another information processing device in the message control system. The apparatus receives a second message integrated by another information processing device, and decompose the received second message into messages including a third message. The apparatus further integrates the decomposed third message and a fourth message into a fifth message, and transfers the integrated fifth message to another information processing device.

Abstract: An information processing apparatus includes a processor. The processor specifies regions surrounded by a boundary line between a range through which a rectangular window passes and a range through which the window does not pass as an arrangement candidate region of the window in a display region when a center of the window is moved according to an outer frame of the display region in a case where it is detected that a display position of the window is a first position at which the window protrudes from the display region, determines a position closest to the first position as an arrangement candidate position of the window among arrangement candidate regions, and arranges the center of the window at the arrangement candidate position when the window does not protrude from the display region in a case where the arrangement candidate position and the center of the window match each other.

Abstract: An information processing apparatus includes: a memory; and a processor coupled to the memory and configured to: display content on a basis of information on the content retained in the memory of the information processing apparatus; determine a possibility of transfer from the information processing apparatus to another apparatus for each piece of the content which is displayed at the information processing apparatus, with reference to the information retained in the memory; and transfer the information on the content to the another apparatus that is a transfer destination, when determining that the possibility of transfer exists.

Abstract: An information processing system includes: an information processing apparatus; a communication equipment; and displays, wherein at least one display among the displays is in a twisted connection relationship with another display, and the information processing apparatus is configured to: store, for each display that has possibility of serving as a reference for drawing, a connection relationship for drawing between the display and another display to be coupled to the display; select, upon reception of an instruction to draw predetermined content, a display that serves as the reference the predetermined content; determine a connection relationship between the selected display and another display to be coupled to the selected display according to the stored connection relationship; divide an image of the predetermined content into images to be displayed on the respective displays according to the determined connection relationship; and cause the respective images to be drawn on the displays.

Abstract: A system for privacy protection includes a processor and a terminal including a location detection device. The processor performs: identifying a presence possible ranges of the terminal at a first time and at a second time earlier than the first time from a combination of information on a first region including the location at the first time, and information on a second region including the location at the second time and having been already transmitted to an external apparatus; determining whether each of the identified presence possible ranges satisfies a preset condition for a presence possible range that may be known by a third party; when the condition is not satisfied, transmitting the information on a third region including the first region and a region other than the first region, as information on a region where the terminal is present at the first time, to the external apparatus.