Job processing method, computer-readable recording medium having stored job processing program and job processing system

A job processing method for use with a job processing system comprising execution servers to execute tasks of a parametric job and a schedule server which extracts each of the tasks from the parametric job and which requests associated one of the execution servers to execute the task, wherein:

• the schedule server comprises a scheduler and a data allocation control table;
• each of the execution servers comprises a data allocation area, a data processing section, a data allocation section, and an external storage;
• the data allocation section reads a data set as a processing target of the task in the data allocation area of an own execution server, and notifies correspondence information between the data set and the own execution server;
• the scheduler stores, in the data allocation control table, the notified correspondence information between the data set and the own execution server to which information of a task executing the data set as a processing target is further added;
• the scheduler retrieves, when selecting the execution server which can execute the task as the allocation-target execution server as an allocation target and allocating the task thereto, the data set as the processing target of the new task from the data allocation control table;
• for data obtaining target at execution of the allocation-target execution server in the data processing section, if the data set as the processing target is beforehand allocated to the data allocation area in the allocation-target execution server, the scheduler sets the data set as the data obtaining target;
• if the data set as the processing target is not beforehand allocated to the data allocation area in any one of the execution servers, the scheduler sets the data set in the external storage area as the data obtaining target;
• and
• if the data set as the processing target is beforehand allocated to the data allocation area in a second execution server other than the allocation-target execution server, the scheduler sets the data set allocated to the second execution server as the data obtaining target.