JPH08202568A - Communication management system - Google Patents

Abstract

PURPOSE: To obtain an efficient communication management means by managing communication by a means which determines response contents on the basis of communication contents from a transmission source, and sending a response to the transmission source by a transmitting means which responds to communication without depending upon the operation state of an object unless the communication is transferred to the transmission source. CONSTITUTION: Communication from a communication source object 21 to the transmission source object 22 is temporarily received by the receiving means 2 of a halfway communication management means 1. The communication from the received transmission object has its communication contents decided by at least one response content decision means 3. The response content decision means 3 determines that the communication from the transmission source object 21 is repeated to the transmission destination object 23 or that the communication managing means 1 sends a response corresponding to the communication contents by itself to the transmission source object 21 through a transmitting means 4 on the basis of the communication contents from the transmission source object 21 and at least one piece of operation state information 5 that the communication control means 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication management system of an information processing system in which one or more objects operate via communication, and more particularly, to communication management of a distributed processing system including a network connecting a plurality of computers. Regarding the scheme.

[0002]

2. Description of the Related Art In a distributed processing system, processes operating on at least one or more computers existing on a computer network communicate with each other regardless of whether they are on the same computer or not. The processing is performed by providing the service to the user.

There is a "client-server model" as a typical example of a system model in distributed processing. This is for a server that provides a service and a client that is the recipient of the service uses this server. Send a service request communication. Usually, a server or a client is a set of procedures and data, and such a set of data and procedures for processing the data is generally called an "object". It should be noted that, hereinafter, when referred to as an object, it does not have to be a client or a server, and means a set of data and a procedure for processing the data. Therefore, in order to construct a distributed processing system efficiently, it is necessary to effectively manage the communication performed by the objects on each computer.

In many systems so far, when a client uses a server, the server side declares the service to be provided to the client, and the client side acquires the address of the server requesting the service in advance. I had to go through a complicated procedure. Therefore, conventionally, a method for reducing these complicated procedures and constructing a distributed processing system regardless of the computer on which the object operates has been considered. For example, even if the computer on which the object operates changes and the position of the transmission source or the transmission destination is changed, the program is not changed. By providing a manager for managing objects in each computer system and designating a communication partner by this object manager, program-to-program communication can be performed with the same interface regardless of the location of the activation object.

[0005]

However, in such a conventional technique, by managing information such as the function of the communication destination object, interface information, whether the transmission destination object is operating, etc. It only managed the communication to decide the destination. For this reason, it has been impossible to effectively manage the communication between the objects after the transmission is started once. For example, when an object requests a process to another running object, generally two objects communicate with each other until the requested process is completed. There are several types of communication, as described on pages 36 to 38 of "Network Computing Architecture" (L. Zahn, published by Toppan Co., Ltd.),
The meaning of communication performed between objects is different for each type. As an example of this communication type, if it is confirmed that the destination object has accepted the communication, and the response of the processing result is not returned within a certain period of time, the source object executes the destination object. Send a communication asking for status. Since this communication is transmitted / received without receiving the communication management by the object manager, the communication between objects cannot be efficiently managed.

Also, in the case of a system having object activation time information for the purpose of maintaining consistency of processing as described in the above-mentioned page 32, when the communication from a certain object is responded, the activation time of the destination object is Notify the source object of information. When requesting the process again for the object that has once been requested to process, the previously notified activation time information is notified to the destination object, and the destination object notifies the previously activated time information and the current activation time information. The startup time information is compared. If the two match, the requested process is accepted, and if they do not match, it means that the destination object was restarted between the previous communication and this communication. Therefore, when the destination object has an internal state, the processing request may be rejected and the request may be retransmitted in order to guarantee the consistency of the processing. However, if it is possible to guarantee that the state of the object restarted by the system matches the internal state before the restart, it is acceptable to accept the processing even if the startup times do not match, and the processing request is resent. No communication required.

According to the present invention, the information in the communication packet is changed according to the contents of the communication, and it is determined whether or not the communication is actually performed to the destination according to the contents of the communication, so that more efficient communication can be achieved. It is intended to provide a means of management.

[0008]

According to the present invention, a plurality of objects existing on one or more computers have a communication management means for managing communication between the objects, and communication is performed through the communication management means. In a distributed processing system that performs processing while performing a process, a transmission unit that responds to communication without depending on an operation state of an object, a unit that holds system state information, and a communication source of the transmission source and system state information Further, the communication amount is managed by a communication management system having a response content determination means for determining the response content to the sender.

[0009]

In the distributed processing system for performing processing while performing communication through the communication management means, the sender is based on the operation status information held by the means for holding system status information and the communication content from the sender. If the response content determination unit that determines the response content to manage the communication and does not transfer the communication to the destination, respond to the source by the transmission unit that responds to the communication without depending on the operation state of the object return it.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

(1) Outline of one embodiment of the present invention First, an outline of one embodiment of the present invention will be described. In this embodiment, the object is one program module and is realized as one process on the computer. A process corresponds to a processing flow of a series of programs executed by a processor of a computer. Generally, an application program is composed of a plurality of processing modules, and these modules can be objects. Then, the processing is executed while communicating between these objects.

FIG. 1 is a conceptual block diagram of an embodiment of the present invention. In the client-server model, which is a typical computing model in the distributed processing system, the client is the source and the server is the destination, but the source object in the present invention does not necessarily have to be the client. Also, it is clear that the destination object is not necessarily limited to the server, but may be any object that can communicate with each other. FIG. 1 shows a state in which a source object (21) requesting a process to another object among objects that can communicate with each other in a distributed processing system sends a communication to a destination object (22) requested to perform the process. It represents. The communication from the source object (21) to the destination object (22) is once received by the receiving means (2) of the midway communication management means (1). The communication content of the transmission source object received by at least one receiving means (2) of the communication managing means (1) is determined by at least one response content determining means (3). In the response content determination means (3), the transmission source object based on the communication content from the transmission source object (21) and the operation state information (5) held by at least one of the communication management means (1). The communication from (21) is relayed to the destination object (22), or the communication managing means (1) independently transmits the source object (21) to the source object (21) by at least one transmitting means (4). It is determined whether to return a response according to the communication contents from 21). When relaying, the response content determination means (3) transfers the communication, but of course the transmission means (4)
The response content determination means (3) may request transfer of communication. In FIG. 1, the receiving means (2),
Only one response content determination means (3), transmission means (4), and operation state information (5) are described, but at least one of them is sufficient, and the communication management means (1) receives a plurality of signals. It may have a means, a response content determination means, a transmission means, and operation state information. In order for the receiving means (2) to once receive the communication to the destination object,
Whether the destination object directly requests the communication management means to relay, or the address of the communication management means is previously notified to the source address instead of the actual address of the destination object as the address of the destination object, Or, when using the database that manages the address of the communication destination object when determining the address of the transmission destination object, register the address of the communication management means as the transmission destination object in this communication destination object address database. It is realized by putting it in. In addition to the above means, it is possible to relay communication at the operating system level.

Next, the structure of a communication packet transmitted by the source object will be described with reference to FIG. The communication packet contains information (4
There is at least one 4). Further, the communication packet includes at least one of information (45) indicating the communication type and interface information (46) for identifying the communication interface in order to distinguish the content of communication. The communication packet (40) may also include information (47) indicating the activation time of the transmission destination.
Further, the communication packet (40) includes the sender identification information (48) for returning the communication response to the sender by the sending means.

The destination identification information (44) may directly represent the communication address of the destination, or may be information for determining the destination to which the communication is actually transferred. In the case of the actual communication transfer destination determination information, when the communication destination address management database is used in determining the communication destination address, the information for searching this communication destination address database may be used. . The communication type information (45) is information for determining the character of the communication itself, for example, whether this communication is a processing request, a processing request cancellation, a processing request acceptance confirmation, or a processing execution state confirmation. Is. Further, the interface information (46) is, for example, in the communication management means for determining which of the plurality of services provided to the outside is to be selected when the destination object provides a plurality of services to the outside. Information. Startup time information (4
7) is for maintaining consistency of processing in the source object when the service requested for the destination object may have different responses depending on the operation state of the destination object. In the system having the activation time information of the object, the activation time information of the transmission destination object is notified to the transmission source object when responding to the communication from the transmission source object. Then, when requesting the processing again to the destination object which has once requested the processing, the communication object (40) is added with the previously notified activation time information (47) to notify the destination object, and the transmission is performed. The destination object compares the previous activation time information notified and the current activation time information, and if they do not match, it means that the destination object was restarted between the previous communication and this communication. Therefore, a check is performed to ensure the consistency of processing. Like the transmission destination identification information (44), the transmission source identification information (48) may directly represent the communication address of the transmission source, or may be information for determining the actual transmission source. Absent. The information may be information for searching the communication destination address database when the communication destination address management database is used when determining the transmission source address.

Next, the operation status information in the communication management means will be described with reference to FIG. The operation state information (42) consists of one or a plurality of destination object information (43) transferred by the communication management means. However, this transmission destination object information may not be held if the communication management means has not yet performed the communication relay processing. Further, it may be dynamically generated each time communication relay processing is performed.

As shown in FIG. 7, the destination object information (43) is effective destination identification information for identifying the destination when the communication sent from the source is actually sent out.
(52) and interface information (53) for selecting the requested service when the destination provides a plurality of services. Further, when the service result of the transmission destination may change depending on the internal state of the transmission destination, the activation time information (54) of the transmission destination may be included.

The destination object information (43) is the execution state information (5) for distinguishing the operation state of the destination.
5) is included. Of course, these do not have to have one data structure, and may exist in the form of independent flags. The communication management means may directly inquire of the transmission destination to know the information in advance, or the communication management means may inquire of the transmission destination to obtain such information when relaying the communication. Further, it is possible to update the destination object information with the information notified from the destination to the communication management means when the state of the destination changes. It is also possible to combine these information acquisition methods.

In the above description of the embodiments, it was not specified on which computer the transmission source, the transmission destination and the communication management means actually operate. In the case of a distributed processing system including a plurality of computers connected to a network, the source object and the destination object may be operating on different computers.

For example, as shown in FIG. 8, two computers connected to the network, computer 1 (11) and computer 2
There is (12), and the sender object (2
3) operates on the computer 1 (11) and the transmission destination object (24) requested to process operates on the computer 2 (24), the communication management means operates first as the computer 1 ( 11) can be mentioned. In this case, the communication between the source object and the communication management means is performed on the same computer, and the communication between the communication management means and the destination object is communication between the computers.

On the contrary, as shown in FIG. 9, the communication management means (9) has the same computer (1) as the destination object.
2) There are cases where the above operation is performed. In this case, the communication between the transmission destination object and the communication management means is performed on the same computer, and the communication between the communication management means and the transmission source object is communication between computers.

In the present invention, of course, in a distributed processing system consisting of a plurality of computers connected to a network, even if the transmission source object and the transmission destination object are operating on the same computer, the communication management means It may be the case where these transmitting / receiving objects are operating on a computer different from the computer on which they operate, and furthermore, the transmission source object, the transmission destination object, and the communication management means may all operate on different computers. Clearly not. The configuration of the entire system may be a mixture of these configurations.

In the above embodiments of the present invention, the relationship between the source or destination object and the communication management means has been described as one-to-one.

However, as shown in FIG.
3) One communication management unit (9) exists for each device, and the communication of the transmission or reception objects (25, 26) is managed by this communication management unit (9). Further, as shown in FIG. 11, a plurality of communication management means (32, 33) operate on one computer, and communication of transmission or reception objects (27, 28, 29) is performed by these communication management means (32, 33). ). In the example shown in FIG. 11, the communication of one object is 1
Although it is managed by one communication management means, the communication of the object in the present invention may be managed by a plurality of communication management means. Further, as shown in FIG. 12, a plurality of communication management means (34, 35) are provided on one computer.
And the communication of the transmission or reception objects (30, 31) is carried out by the communication management means (34, 35) on a one-to-one basis.
The configuration managed by.

Furthermore, when one communication management means operates on a plurality of computers, at least one or more receiving means and operation status information possessed by one communication management means are on the computer on which the response content determination means operates. It is also possible to adopt a configuration in which it operates on a computer different from the above.

Next, referring to FIG. 13, when the communication to be relayed is a communication for inquiring the execution status of the requested processing based on the information of the communication packet, the transmission destination is executing the processing. The operation of the response content determination means that determines the communication management operation that returns a response in some cases will be described. The response content judging means looks at the communication packet received by the receiving means (100) and checks the communication type information of the communication packet (101). If the communication type is not the execution status confirmation of the requested processing, the communication is transferred to the destination determined from the destination identification information of the communication packet and the interface information (102), and the destination object information is transmitted if necessary. Update. On the other hand, if the communication type is to confirm the execution status of the processing requested earlier, first check the operation status information (1
03). If there is information in the operation status information when the transmission source that sent this communication packet first has already communicated with the same transmission destination as the processing request, and the execution status information of the transmission destination is in operation Causes the transmission means to respond to the transmission source that the transmission destination is executing processing (104). If not, the transmission means responds to the transmission source that the transmission destination has discarded the processing request (105).

(2) Effect of the embodiment of the present invention In the case of this embodiment, when the communication queue exists at the destination and the processing requested earlier remains in the queue, the processing request is transmitted. When the communication queue is held in the previous communication queue, the sender can be notified of the acceptance of the processing, and the communication can be prevented from ending due to timeout. In addition, it is possible to reduce the load for the destination to process communication such as inquiry about the operating state that has little relation to the actual service.

(3) Modification of One Embodiment of the Present Invention Next, as a modification of the embodiment of the present invention, referring to FIG. 14, the processing result of the destination of the communication to be relayed is based on the information of the communication packet. The operation of the response content determination means for independently changing the activation time information of the transmission destination when the request is for execution of processing that may change depending on the internal state of the transmission destination will be described. The response content judging means looks at the communication packet received by the receiving means (110) and checks the communication type information of the communication packet (111). If the communication type is not a processing request, the transmission means is directly requested to transfer the communication packet (114), but if the communication type is a processing request, the start time information of the communication packet is checked (112). ). Destination object information matching the destination determined from the destination identification information of the communication packet and the interface information exists in the operation status information, and the destination start time information stored in the destination object information If the start time information of the communication packet matches, the transfer means is requested to transfer the communication packet (114), and the operation state information is updated if necessary. However, if the two startup time information do not match, in the system that can guarantee that the status of the restarted object matches the internal status before restart, the destination accepts the processing even if the startup times do not match. Since it does not matter, the startup time information of the communication packet is rewritten to the startup time information stored in the destination object information, or the startup time information of the communication packet is deleted and the communication is first sent to the destination. Then, the communication packet is corrected (113) and the transmission means is requested to transfer the communication packet (114). (4) Effects of Modification of Embodiment In the modification of this embodiment, even when the activation time information of the communication packet and the activation time information of the transmission destination object do not match, the transmission destination requests the transmission source to resend the processing request. It is possible to prevent the communication from being sent and reduce the processing load on both the destination and the source.

(5) Another modification of one embodiment of the present invention In the above embodiment, the response content judgment means manages the communication based on the communication type of the communication packet itself. However, as shown in FIG. 4, the sender sends the importance (49) information indicating the importance of the communication itself to the communication packet (40).
In addition to the importance level (4
Communication management can also be performed by using 9).
That is, the communication management is performed by returning a response from the communication management means to the transmission source without actually transferring the communication having a low importance compared with the communication importance judgment criterion of the communication management means to the transmission destination. It is also possible. Of course, the response content determination means associates the communication type (45) with the importance and handles the communication type as the importance, so that the importance of communication can be handled without adding the importance (49) to the communication packet. It is possible. or. It is also possible to set different communication importance determination criteria for different communication types. In the following modification of the embodiment of the present invention, when the communication management means has in advance or obtained by notification from the outside at the time of operation, based on the communication importance determination criteria, when the load of the communication path is large An example will be described in which communication of low importance is not transferred to the destination.

FIG. 6 shows a structure of operation state information in a modification of the embodiment of the present invention. The operation status information (42) includes one or more destination object information (43) transferred by the communication management means, communication path status information (50) representing load status of the communication path and path information of the communication path,
Then, a communication path state limit value (51) that defines correspondence between the load status of the communication path and the importance of communication is included. However,
This destination object information may not be held if the communication management means has not yet performed the relay processing of the communication, and may be dynamically generated each time the relay processing of the communication is performed. It is similar to the previous embodiment. Of course, these do not have to have one data structure and may exist in the form of independent flags. Furthermore, in the communication management means that can use a plurality of communication paths, one piece of operation status information may include a plurality of pieces of communication path status information (50) and communication path status limit value (51) information. When one communication management unit has a plurality of operation status information, if at least one operation status information includes at least one communication path status information (50) or communication path status limit value (51) information. Of course, in that case, there may be operation state information that does not have the channel condition information (50) or the channel condition limit value (51) information. Furthermore, the communication path state limit value (51) that defines the correspondence between the load status of the communication path and the importance of communication does not necessarily have to be one. For example, load states of different communication paths may be associated with each other according to a plurality of different importance levels of communication.

Next, the operation of the response content judgment means in the modification of the embodiment of the present invention will be described with reference to FIG. The response content judging means looks at the communication packet received by the receiving means (120) and checks the importance information of the communication packet (121). If the importance of the communication packet is possessed by the communication management means in advance or is higher than the communication importance determination criterion obtained by the notification from the outside during the operation, the communication is determined from the destination identification information of the communication packet and the interface information. The destination object information is updated if necessary (122). On the other hand, if the importance of the communication packet is lower than the communication importance determination criterion, the communication path status information and the communication path status limit value of the operation status information are checked (12
3) If the load of the communication path is smaller than the communication path state limit value, the communication is transferred to the destination determined from the destination identification information of the communication packet and the interface information (12).
2) If necessary, the destination object information is updated.
On the other hand, when the load on the communication path is larger than the communication path state limit value, the response operation determined according to the communication type is performed (124). For example, if the communication type is the confirmation of the execution status of the processing requested earlier, first check the operation status information, and the operation status information is processed from the source that sent this communication packet to the same destination. If the information at the time of request communication exists and the execution status information of the destination is in operation, the sending means responds to the sender that the destination is executing processing, and otherwise. For example, the transmission means causes the transmission source to respond that the transmission destination has discarded the processing request. If the communication type is a processing request, the operation state information is checked, and if the operation state information has the same execution state information of the transmission destination and the execution state is waiting, it is transferred to the transmission destination. If the destination is not waiting, if the destination has a receive queue, if the operating state of the destination is running, or if it is preparing due to initialization work, etc., the destination is waiting in the near future. Therefore, the communication packet is transferred to the transmission destination, and the transmission means causes the transmission source to respond that the transmission destination has accepted the processing request. Even if the transmission destination does not have a reception queue, if the communication management means has a communication queue, the operation state of the transmission destination becomes standby without transferring the communication packet to the transmission destination, or the transmission source The same communication management can be performed by holding in the communication queue of the communication management means until the request discard communication comes from. If the transmission destination is neither waiting, executing, nor preparing, the transmission means responds to the transmission source that the transmission destination has discarded the processing request. Furthermore, for example, if the communication type is a communication that inquires whether a destination object exists, if the load of the communication path is large as a response corresponding to the communication type, all destinations exist regardless of the state of the destination. In this case, it is possible to send a response to the transmission source by the transmission means, or even if the transmission destination is for some reason known to be in the process of restoration even if the transmission destination does not currently exist even if the load on the communication path is small. Since there will be a transmission destination in the near future, if the transmission destination exists, it is possible to cause the transmission means to respond to the transmission source. Also, if the communication type is a communication that inquires whether the destination object is active, if the load corresponding to the communication type is heavy on the communication path, all destinations are active regardless of the state of the destination. It is also possible to make a response to the sender by the sending means, and even if the load on the communication path is small and it is known that the recipient will resume the activity soon even if the destination is not currently active for some reason, it is close. Since the destination becomes active in the future, it is possible to cause the source to respond when the destination is active.

It is also possible to manage communication by using both the importance of the communication and the communication type. The operation of the response content determination means using the communication importance and communication type will be described with reference to FIG. The response content judging means checks the communication packet received by the receiving means (14
0), the importance information of the communication packet is checked (141).
If the importance of the communication packet is stored in the communication management means in advance or is lower than the communication importance determination criterion obtained by the notification from the outside during operation, the communication path status information and the communication path status limit value of the operation status information are set. When it is checked (146) and the load of the communication path is larger than the communication path state limit value, the response operation determined according to the communication type is performed (147). On the other hand, is the importance of the communication packet higher than the communication importance criterion?
Even if the importance of the communication packet is lower than the communication importance determination criterion and the load of the communication path is smaller than the communication path state limit value, the communication type information of the communication packet is checked (14
2). If the communication type is not a processing request, the transmission means is directly requested to transfer the communication packet (1
45), if the communication type is a request for processing, the activation time information of the communication packet is checked (143). Destination object information matching the destination determined from the destination identification information of the communication packet and the interface information exists in the operation status information, and the destination start time information stored in the destination object information If the start time information of the communication packet is the same, the transfer of the communication packet is requested to the transmitting means (145), and the operation state information is updated if necessary. However, if the two startup time information do not match, in the system that can guarantee that the status of the restarted object matches the internal status before restart, the destination accepts the processing even if the startup times do not match. Since it does not matter, the activation time information of the communication packet is rewritten to the activation time information stored in the destination object information, or the activation time information of the communication packet is deleted and the communication is first sent to the destination. Then, the communication packet is corrected (144), and the transmission means is requested to transfer the communication packet (145).

Further, even if the communication packet does not include the importance information of the communication, it is possible to manage the communication by treating the communication type as the importance information. As an example of this, an example in which the importance of operation confirmation is treated low among communication types will be described with reference to FIG. The response content judging means looks at the communication packet received by the receiving means (130) and checks the communication type information of the communication packet (131). If the communication type is the confirmation of the execution status of the processing requested earlier, check the communication path status information and the communication path status limit value of the operation status information (1
36) If the load on the communication path is greater than the communication path state limit value, the operation status information is first checked (137). If there is information in the operation status information when the transmission source that sent this communication packet first has already communicated with the same transmission destination as the processing request, and the execution status information of the transmission destination is in operation Causes the transmission means to respond to the transmission source that the transmission destination is executing processing (138). If not, the transmission means responds to the transmission source that the transmission destination has discarded the processing request (139). If the load on the communication path is smaller than the communication path state limit value, the communication packet is transferred to the destination (135). On the other hand, if the communication type is not operation confirmed, the communication type information of the communication packet is checked (132),
If the communication type is not a processing request, the transmission means is directly requested to transfer the communication packet (135).
However, if the communication type is a processing request, the activation time information of the communication packet is checked (133). Destination object information matching the destination determined from the destination identification information of the communication packet and the interface information exists in the operation status information, and the destination start time information stored in the destination object information If the start time information of the communication packet is the same, the transfer of the communication packet is requested to the transmitting means (135), and the operation state information is updated if necessary. However, if the two startup time information do not match, in the system that can guarantee that the status of the restarted object matches the internal status before restart, the destination accepts the processing even if the startup times do not match. Since it does not matter, the startup time information of the communication packet is rewritten to the startup time information stored in the destination object information, or the startup time information of the communication packet is deleted and the communication is first sent to the destination. Then, the communication packet is corrected (134) and the transmission means is requested to transfer the communication packet (135).

(6) Effect of another modification of the embodiment of the present invention In the case of the modification of this embodiment, it becomes possible to specify the degree of importance for each communication, thereby constructing a more flexible distributed processing system and communication management. Will be possible. Furthermore, since it becomes possible to manage the communication by predicting and estimating the system state, more efficient communication management can be performed.

(7) Another Embodiment of the Present Invention As a modification of the embodiment of the present invention, as shown in FIG.
Response content judgment means (3) is communication address database
It is also possible to obtain information from the manager (6) and perform processing for changing the transmission destination. In this case, for example, if the load of the communication path communicating with the destination is large even if the importance of communication is high, and if there is no inconvenience even if the processing is requested to another destination having the same function, the response contents The judging means (3) searches for another destination by the communication address database manager (6) based on the interface information of the process, finds another destination having an equivalent function, and determines another destination having an equivalent function. If the destination exists and the load of the communication path to the destination is smaller than the load of the communication path to the destination requested by the source, the destination is changed.
If there are a plurality of other transmission destinations having the same function, the transmission destination is changed to the transmission destination with the smallest load on the communication path.

(8) Effects in Another Embodiment In this embodiment, the communication load can be automatically distributed, and the construction management of the distributed system becomes flexible and simple.

[0036]

According to the present invention, flexible communication management can be realized by using the status information of the transmission destination, and system performance can be improved by managing communication efficiently.
Furthermore, unnecessary communication and less important communication can be limited, an increase in communication load can be prevented, and system performance can be improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is a configuration diagram of another embodiment of the present invention.

FIG. 3 is a diagram showing a configuration example of a communication packet according to an embodiment of the present invention.

FIG. 4 is a diagram showing a configuration example of another communication packet in the embodiment of the present invention.

FIG. 5 is a diagram showing a configuration example of operation state information according to an embodiment of the present invention.

FIG. 6 is a diagram showing a configuration example of another operation state information according to the embodiment of the present invention.

FIG. 7 is a diagram showing a configuration example of destination object information according to an embodiment of the present invention.

FIG. 8 is a diagram showing an operation example of the communication management means in the embodiment of the present invention.

FIG. 9 is a diagram showing an operation example of another communication management means in the embodiment of the present invention.

FIG. 10 is a conceptual configuration diagram of an object and communication management means in the present invention.

FIG. 11 is another conceptual configuration diagram of an object and communication management means according to the present invention.

FIG. 12 is another conceptual configuration diagram of an object and communication management means in the present invention.

FIG. 13 is a diagram showing an example of an operation procedure of response content judgment means in the embodiment of the present invention.

FIG. 14 is a diagram showing another operation procedure example of the response content determination means in the embodiment of the present invention.

FIG. 15 is a diagram showing an example of an operation procedure of response content determination means in a modification of the exemplary embodiment of the present invention.

FIG. 16 is a diagram showing another operation procedure example of the response content determination means in the modification of the exemplary embodiment of the present invention.

FIG. 17 is a diagram showing still another operation procedure example of the response content determination means in the modification of the exemplary embodiment of the present invention.

[Explanation of symbols]

1, 7, 8, 9, 32, 33, 34, 35 ... Communication management means, 2 ... Reception means, 3 ... Response content determination means, 4 ... Transmission means, 5, 42 ... Operating state information, 6 ... Communication address Database manager, 11, 12, 13 ... Computer, 2
1, 23 ... Source object, 22, 24 ... Destination object, 25, 26, 27, 28, 29, 30, 3
1 ... object, 43 ... destination object information, 4
4 ... destination identification information, 45 ... communication type, 46, 53 ...
Interface information, 47, 54 ... Startup time information, 4
8 ... Source identification information, 49 ... Importance information, 50 ... Communication state information, 51 ... Communication state limit value, 52 ... Effective destination identification information, 55 ... Execution state information.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoru Murata 1-1-1 Omika-cho, Hitachi-shi, Ibaraki Hitachi Ltd. Hitachi Research Laboratory

Claims (4)

[Claims] 1. A distributed processing system in which a plurality of objects existing on one or more computers have communication management means for managing communication between the objects, and perform processing while communicating through the communication management means. , Sending means that responds to communication without depending on the operating status of the object, means that holds system status information, and response contents to the sender based on the communication content information of the sender and the system status information. It has a response content determining means for determining, and the response content determining means determines whether or not to transfer the communication to the destination according to the communication information, and when not transferring, returns a response to the source. A featured communication management system. 2. The future status of the destination according to claim 1, wherein the status information of the system includes operation status information of the destination object, and the response content determination means determines the content of the communication and the held operation status information from the destination. A communication management method characterized by predicting and estimating, and returning a response to the transmission source based on this prediction information without transferring the communication to the transmission destination. 3. The response content determination means according to claim 2, wherein even when the destination object is stopped, when the operation is restarted by the object requesting the processing, the response content determining means stops the destination of the processing requesting object. Communication management method characterized by not letting you know. 4. The method according to claim 1, further comprising communication load information as the status information of the system, and when the response content determination means exceeds the reference determined by the importance of the communication content, the communication content information is held. A communication management method characterized in that a response is returned to the transmission source without transferring the communication to the transmission destination based on the operating state information.