Computer system, data transfer method, and data transfer program

A data transfer method performed by a computer system,

• the computer system including a plurality of execution servers and a management server connected with the execution servers via a network,
• each of the plurality of execution servers including a processor and a network interface and storing pieces of data output by executing jobs to a storage device including semiconductor memory elements,
• the plurality of execution servers including a first execution server,
• the management server including a processor, a memory, and a network interface and holding input/output information including identifiers identifying pieces of data, identifiers identifying execution servers which output the pieces of data, and identifiers identifying execution servers to execute jobs to which the pieces of data are input in the memory of the management server,
• the data transfer method comprising:
• a step of sending, by the first execution server, a request for destination including an identifier identifying the first execution server and an identifier identifying a first piece of data, which is output by executing a job in the first execution server, to the management server in order to inquire where to transfer the first piece of data,
• a step of determining, by the management server which has received the request for destination, an execution server to execute a job to which the first piece of data is input to be a destination execution server of the first piece of data based on the input/output information and the received request for destination, and
• a step of outputting, by the management server, an instruction for transfer including an identifier identifying the determined destination execution server and the identifier identifying the first piece of data in order to transfer the first piece of data from the storage device holding the first piece of data to the determined destination execution server.

A non-transitory computer readable storage medium for storing a data transfer program, which, when executed on a management server, causes the management server to perform processing,

• the management server being connected with a plurality of execution servers for storing pieces of data output by executing jobs to a storage device including semiconductor memory elements via a network, including a processor, a memory, and a network interface, and holding input/output information including identifiers identifying the pieces of data, identifiers identifying execution servers which output the pieces of data, and identifiers identifying execution servers to execute jobs to the pieces of data are input in the memory of the management server,
• the data transfer program causing the management server to perform:
• a step of receiving, from the first execution server, a request for destination including an identifier identifying the first execution server and an identifier identifying a first piece of data, which is output by executing a job in the first execution server, in order to inquire where to transfer the first piece of data;
• a step of determining an execution server to execute a job to which the first piece of data is input to be a destination execution server of the first piece of data based on the input/output information and the received request for destination upon receipt of the request for destination;
• and
• a step of outputting an instruction for transfer including an identifier identifying the determined destination execution server and the identifier identifying the first piece of data in order to transfer the first piece of data from the storage device holding the first piece of data to the determined destination execution server.