Information processing apparatus, data processing system and data processing management method

An information processing apparatus in a data processing system including a plurality of data processing apparatuses each of which includes a data processing unit and a data processing managing unit that operates in an associated manner with the data processing unit, respectively, the data processing units of the respective data processing apparatuses performing data updating in a linked manner in the data processing system, the information processing apparatus comprising;

• the data processing managing unit that executes a process including:
• detecting a completion of a first process with respect to a first processing request to a corresponding data processing unit;
• sending, according to the detection, a first processing completion pre-notification that includes a processing start time of the first process and information about processing target data of the first process to each of other data processing managing units in a specific data processing apparatus that is one of the plurality of data processing apparatuses;
• determining whether or not it is feasible to commit the first process, according to a response content with respect to the first processing completion pre-notification from each of a plurality of the data processing managing units;
• and
• generating and transmitting, when a second processing completion pre-notification is received from one of the plurality of data processing managing units, a response to the second processing completion pre-notification according to whether or not, in the corresponding data processing unit, each of the processes started in the corresponding data processing unit earlier than a processing start time specified from the second processing completion pre-notification is targeted at processing target data specified from the second processing completion pre-notification and also according to performance information stored in the first data processing apparatus for a data processing unit corresponding to the data processing managing unit that transmits the second processing completion pre-notification.

A data processing system including a plurality of data processing apparatuses each of which includes a data processing unit and a data processing managing unit that operates in an associated manner with the data processing unit, respectively, the data processing units of the respective data processing apparatuses performing data updating in a linked manner in the data processing system, wherein

• a first data processing managing unit of a first data processing apparatus executes a process including:
• detecting a completion of a first process with respect to a first processing request to a first data processing unit corresponding to the first data processing managing unit;
• sending, according to the detection, a first completion pre-notification that includes a processing start time of the first process and information about processing target data of the first process to each of other data processing managing units in the first data processing apparatus or in a specific data processing apparatus that is one of the plurality of data processing apparatuses;
• and
• determining whether or not it is feasible to commit the first process, according to a response content with respect to the first processing completion pre-notification from each of a plurality of the data processing managing units, and
• a second data processing managing unit of a second data processing apparatus executes a process including:
• generating and transmitting, when the processing completion pre-notification for the first process is received from the first data processing managing unit, a response to the first processing completion pre-notification according to whether or not, in a second data processing unit corresponding to the second data processing managing unit, each of the processes started in the second data processing unit earlier than a processing start time specified from the first processing completion pre-notification is targeted at processing target data specified from the first processing completion pre-notification and also according to performance information for the first data processing unit stored in the second data processing apparatus.

A data processing management method executed in a data processing apparatus in a data processing system including a plurality of data processing apparatuses each of which includes a data processing unit and a data processing managing unit that operates in an associated manner with the data processing unit, respectively, the data processing units of the respective data processing apparatuses performing data updating in a linked manner in the data processing system, the data processing management method comprising:

• detecting, by the data processing managing unit, a completion of a first process with respect to a first processing request to a corresponding data processing unit;
• sending, by the data processing managing unit, according to the detection, a first processing completion pre-notification that includes a processing start time of the first process and information about processing target data of the first process to each of other data processing managing units in a specific data processing apparatus that is one of the plurality of data processing apparatuses;
• determining, by the data processing managing unit, whether or not it is feasible to commit the first process, according to a response content with respect to the first processing completion pre-notification from each of a plurality of the data processing managing units;
• and
• generating and transmitting, by the data processing managing unit, when a second processing completion pre-notification is received from one of the plurality of data processing managing units, a response to the second processing completion pre-notification according to whether or not, in the corresponding data processing unit, each of the processes started in the corresponding data processing unit earlier than a processing start time specified from the second processing completion pre-notification is targeted at processing target data specified from the second processing completion pre-notification and also according to performance information stored in the first data processing apparatus for a data processing unit corresponding to the data processing managing unit that transmits the second processing completion pre-notification.