Method for queuing message and program recording medium thereof

• US 8,201,017 B2
• Filed: 06/29/2009
• Issued: 06/12/2012
• Est. Priority Date: 09/30/2008
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Koike, Yasuo, Tanaka, Tamaki, Yamamoto, Shoji
• Primary Examiner(s): DUNCAN, MARC M
• Application Number:
  US12/493,873
• Publication Number:
  US 20100083031A1
• Time in Patent Office: 1,079 Days
• Field of Search: 714/4, 719/314, 370/229, 370/230, 370/312, 370/432
• US Class Current: 714/4.1
• CPC Class Codes: G06F 11/1482 by means of middleware or OS functionality
• CPC Class Codes: G06F 11/2025 using centralised failover control functionality
• CPC Class Codes: G06F 11/2028 eliminating a faulty processor or activating a spare

Abstract

According to an aspect of the embodiment, a message queuing unit of the message processing apparatus stores received messages. A message reception control unit receives a notification of destinations of messages, extracts only the messages for current processes based on a process control table recording current or standby of processes, and transmits the messages to corresponding applications as current processes. On the other hand, the message reception control unit does not transmit the messages to the applications as standby processes.

Claims

1. A method for transmitting a message that is received by a computer to an application, the method comprising:

deciding applications of N each of which receives a message among applications of M each of which maintains a state which can be in communication with the computer based on a number M and a number N, the number M being a number of same applications each of which maintains the state which can be in communication with the computer, the number N being equal with or a smaller value than the number M and a number of applications each of which receives the message;

setting a control table that stores data indicating an application receives the message for each of the applications of N, and data indicating an application maintains the state which can be in communication with the computer for each of the applications other than the applications of N;

receiving a message whose destination is any one of the applications of M;

determining whether the destination of the message that is received by the computer is any one of the applications of N based on the control table to permit reception of the message at the destination; and

transmitting the message that is received to an application that is the destination of the message that is received by the computer based on the permission, when the destination of the message that is received is any one of the applications of N, whereby the message whose destination is any one of the applications of N is transmitted to the destination.

2. The method according to claim 1, further comprising:

storing control information to a storage unit, the control information including information to identify each of the applications and information indicating whether each of the same applications each of which maintains the state which can be in communication with the computer is an application that receives the message or that does not receive the message; and

updating the control information to select at least one application as an application that receives the message, when the application that is the destination of the message is in an abnormal state, the one application being selected from applications that are indicated as applications that do not receive the message in the control information based on the number N which is the number of applications each of which receives the message.

3. A computer readable, non-transitory medium storing a program for transmitting a message that is received by a computer to an application, the program causing the computer to execute the operations of:

deciding applications of N each of which receives a message among applications of M each of which maintains a state which can be in communication with the computer based on a number M and a number N, the number M being a number of same applications each of which maintains the state which can be in communication with the computer, the number N being equal with or a smaller value than the number M and a number of applications each of which receives the message;

setting a control table that stores data indicating an application receives the message for each of the applications of N, and data indicating an application maintains the state which can be in communication with the computer for each of the applications other than the applications of N;

receiving a message whose destination is any one of the applications of M;

determining whether the destination of the message that is received by the computer is any one of the applications of N based on the control table to permit reception of the message at the destination; and

transmitting the message that is received to an application that is the destination of the message that is received by the computer based on the permission, when the destination of the message that is received is any one of the applications of N, whereby the message whose destination is any one of the applications of N is transmitted to the destination.