JP2002182997A - Communication processing method, its performing device and recording medium for recording its processing program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for keeping an overhead to the minimum when an on-line system is redundantly constituted and enhancing its reliability. SOLUTION: Technique is provided with a step for assigning a logical route to a cluster, storing the logical route identifying information and cluster identifying information of the cluster and updating a logical route information table, a step for reporting the logical route identifying information to the cluster, a step for distributing the updated logical route information table to respective communication processors, a step for burying logical route identifying information reported to the cluster into transmission data when a transmission request is generated in the cluster and transmitting it to an opposite party system through the communication processor and a step for responding to the cluster which is identified by cluster identifying information corresponding to logical route identifying information which is buried in response data being received from the opposite party system and transmitting response data to the cluster.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication processing system for controlling a plurality of redundant communication processing devices, and more particularly, to improving the reliability of an online system by making the communication processing devices redundant and improving the reliability of the online system for 24 hours. The present invention relates to a technology effective when applied to a communication processing system for realizing driving.

[0002]

2. Description of the Related Art In communication of an online system operated by a processing device having a cluster configuration having a plurality of CPUs, it is necessary to make the system appear to have one address so that the partner system does not recognize the plurality of clusters. In this case, if a plurality of lines are connected to the partner system, the partner system may select and respond to a line different from the line used for transmission to the partner system.

In such a cluster configuration, it is not guaranteed that the same cluster as the transmitted cluster receives a response from the partner system in the cluster response receiving process. The cluster that has received the response reads the progress information of the process related to the response from the shared memory, and takes over the execution of the process in place of the cluster at the transmission source. However, sharing information in a shared memory or the like requires exclusion processing between clusters, which causes a problem that overhead for the exclusion processing is required.

As a technique for eliminating overhead due to a shared memory or the like in an online system having a cluster configuration, a communication processing device such as a relay processor disclosed in Japanese Patent Application Laid-Open No. H11-282813 uses a communication processor such as a relay processor to transmit a response message from a partner system to a transmission source. There is also a technology to send back to the cluster, but if multiple lines are divided and accommodated in multiple communication processing devices, shared information between the multiple communication processing devices will be required,
In order to communicate with the same partner system through multiple lines, the lines must be accommodated in the same communication processing device,
The redundant configuration of the communication processing device could not be taken.

Further, even in the case of a multiplexing subsystem capable of taking over processing between clusters as disclosed in Japanese Patent Application Laid-Open No. Hei 5-012048, the influence on the communication processing apparatus due to the switching of cluster processing is taken into consideration. It was not possible to return a response to the cluster that took over.

[0006]

A system using resources that can be shared between clusters, such as the above-mentioned conventional shared memory, can process even if response data is returned to a cluster other than the transmitting cluster. If this is done, overhead occurs due to exclusive control between clusters and the like, so that there is a problem that performance is reduced. It is also possible to return response data to the transmitted cluster by transferring the response data between a plurality of communication processing devices, but this also has a performance drop due to transfer overhead between the communication processing devices.

In the communication processing device, control for sending back to the transmitted cluster can be performed. However, when connecting to the same partner system via a plurality of lines, all the lines are accommodated in the same communication processing device. I had to. For this reason, the communication processing device itself cannot have a redundant configuration, and the reliability of the entire system has been reduced. Further, if the same communication processing device accommodates a line connected to the partner system, communication with the partner system cannot be performed at the time of regular maintenance of the communication processing device, and the online system including the communication processing device operates for 24 hours. There is a problem that can not be done.

An object of the present invention is to solve the above problems and to provide a technology capable of improving the reliability of an online system by minimizing the overhead when the system is made redundant.

[0009]

According to the present invention, there is provided a communication processing system for performing communication between a plurality of clusters and a partner system via a plurality of communication processing devices. A cluster corresponding to the information is read from the logical path information table, and the response data is transmitted as a response to the cluster.

When the logical path manager of the communication processing system of the present invention receives a logical path assignment request from a cluster, it assigns a logical path to the cluster that has made the assignment request, and identifies the assigned logical path. The logical path information table is updated by storing the path identification information and the cluster identification information for identifying the cluster to which the logical path is assigned. Then, after reporting the logical path identification information indicating the allocated logical path to the cluster to which the logical path is allocated, the contents of the logical path information table updated by the allocation are distributed to each communication processing device.

When a transmission request occurs in a cluster, the logical path identification information reported to the cluster is embedded in the transmission data, and the contents of the communication processing device status management table for managing the status of the communication processing device indicate the communicable state. The selected communication processing device is selected, and the transmission data is transmitted to the partner system via the communication processing device.

When the response data from the partner system is transmitted, the transmitted response data is received by the communication processing device,
The cluster identification information corresponding to the logical path identification information embedded in the response data is read from the distributed logical path information table, and the response data is transmitted as a response to the cluster identified by the cluster identification information.

As described above, in the present invention, logical path identification information added to transmission data and response data between a cluster and a partner system is assigned to a logical path identified by the logical path identification information. The logical path information is stored in the logical path information table in association with the cluster identification information for identifying a cluster, and when response data is received from the partner system, the logical path information corresponding to the logical path identification information embedded in the response data is stored. Since the response data is transmitted as a response to the cluster identified by the cluster identification information, the partner system transmits the response data using a communication line or a communication processing device different from the communication line or the communication processing device to which the transmission data was transmitted. Even if the data is sent, the cluster that sent the data is sent to the cluster that sent the data without accessing the shared resources that require exclusive control. It is possible to transmit the response data, when the redundancy of the information processing device by clustering, the multiplex redundancy configuration of the communication processing device and the communication line is adopted to improve the reliability as an online system, It is possible to minimize overhead such as exclusion processing of shared resources.

As described above, according to the communication processing system of the present invention, the cluster corresponding to the logical path identification information embedded in the response data is read from the logical path information table, and the response data is transmitted to the cluster as a response. Therefore, it is possible to minimize the overhead when the online system has a redundant configuration and improve the reliability thereof.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A communication processing system according to an embodiment for performing online processing between a plurality of clusters and a partner system via a plurality of communication processing devices will be described below.

FIG. 1 is a diagram showing a schematic configuration of a communication processing system according to this embodiment. As shown in FIG. 1, the cluster 1 according to the present embodiment includes a logical path manager 11, an online processing unit 13, and a logical path client 14.

The logical path manager 11 assigns a logical path, which is a logical communication path for identifying communication with a partner system, to a cluster, and logical path identification information for identifying the assigned logical path. The logical path information table 12 is updated by storing the information and the cluster identification information for identifying the cluster to which the logical path is assigned, and the logical path identification information of the assigned logical path is assigned to the logical path. The processing unit reports to the logical path client of the cluster and distributes the contents of the logical path information table 12 updated by the assignment to the communication processing apparatuses 100 and 200.

The online processing unit 13 embeds logical path identification information reported to the logical path client 14 of the cluster 1 into transmission data when a transmission request is generated due to execution of business processing in the cluster 1 and performs communication processing. This is a processing unit that transmits to the partner system 3 via the device 100 or the communication processing device 200.

The logical path client 14 sends a logical path allocation request from the online processing unit 13 to the logical path manager, holds information indicating the reported logical path, and receives an inquiry about the logical path from the online processing unit 13. In this case, the processing unit reports the held logical path identification information to the online processing unit 13.

A program for causing the cluster 1 to function as the logical path manager 11, the online processing unit 13, and the logical path client 14 is recorded on a recording medium such as a CD-ROM, stored on a magnetic disk or the like, and then loaded into the memory. And executed. The recording medium for recording the program may be a recording medium other than the CD-ROM.

The cluster 2 has a logical path manager 21
, Online processing unit 23 and logical path client 2
And 4.

The logical path manager 21 is a processing unit that is started when a failure occurs in the cluster 1 and the logical path manager 11 cannot perform processing, and performs the same processing as the logical path manager 11. The online processing unit 23
When a transmission request is generated by executing a business process in the cluster 2, the logical path identification information reported to the logical path client 24 in the cluster 2 is embedded in the transmission data, and is transmitted via the communication processing device 100 or the communication processing device 200. This is a processing unit that transmits the data to the partner system 3.

The logical path client 24 sends a logical path allocation request from the online processing unit 23 to the logical path manager, holds information indicating the reported logical path, and receives an inquiry about the logical path from the online processing unit 23. In this case, the processing unit reports the held logical path identification information to the online processing unit 23.

A program for causing the cluster 2 to function as the logical path manager 21, the online processing unit 23, and the logical path client 24 is recorded on a recording medium such as a CD-ROM, stored on a magnetic disk or the like, and then loaded into the memory. And executed. The recording medium for recording the program may be a recording medium other than the CD-ROM.

The communication processing device 100 includes a communication processing unit 103
And a logical path client 104.

The communication processing unit 103 is a processing unit for transmitting and receiving transmission data and response data between the cluster 1 or the cluster 2 and the partner system 3. The logical path client 104 reads cluster identification information corresponding to the logical path identification information embedded in the response data received from the partner system 3 from the distributed logical path information, and is identified by the cluster identification information. This is a processing unit that transmits the response data to the cluster as a response.

A program for causing the communication processing apparatus 100 to function as the communication processing unit 103 and the logical path client 104 is recorded on a recording medium such as a CD-ROM, stored on a magnetic disk or the like, and then loaded into a memory and executed. Shall be performed. The recording medium for recording the program may be a recording medium other than the CD-ROM.

The communication processing unit 200 includes a communication processing unit 203
And a logical path client 204.

The communication processing unit 203 is a processing unit for transmitting and receiving transmission data and response data between the cluster 1 or cluster 2 and the partner system 3. The logical path client 204 reads cluster identification information corresponding to the logical path identification information embedded in the response data received from the partner system 3 from the distributed logical path information, and is identified by the cluster identification information. This is a processing unit that transmits the response data to the cluster as a response.

A program for causing the communication processing device 200 to function as the communication processing unit 203 and the logical path client 204 is recorded on a recording medium such as a CD-ROM, stored on a magnetic disk or the like, and then loaded into a memory and executed. Shall be performed. The recording medium for recording the program may be a recording medium other than the CD-ROM.

The online system according to the present embodiment is a duplex system in which a plurality of information processing apparatuses indicated by clusters 1 and 2 and communication processing apparatuses 100 and 200 and a partner system 3 are connected by lines 41 and 42. It has a redundant configuration. The number of clusters and communication processing devices may be further increased to provide a multiplexed redundant configuration.

In the online system of the present embodiment, communication between the clusters 1 and 2 and the partner system 3 is performed on a logical path for logically identifying each communication. That is, when the business application running in each cluster communicates with the business application of the partner system 3, after acquiring the logical path identification information for identifying each communication, the logical path identification information is transmitted to the transmission data. And sends it to the partner system 3, and the partner system 3 adds the logical path identification information to the response data and returns a response. Each communication processing device that has received the response data refers to the logical path identification information in the response data, and determines on which logical path the response data is communication, that is, a response to the business process application of which cluster. It is determined whether the data is data, and response data is sent to the cluster.

In the present embodiment, when it is determined that the number of logical paths used between the cluster 1 and the cluster 2 and the partner system 3 is four, the logical path manager 11 started by the cluster 1 is shared. A table for four logical paths is developed as a logical path information table 12 on the memory. Here, the logical path information table 1 is stored in the shared memory.
The reason why the logical path manager 2 is stored is that a failure occurs in the cluster 1 and the logical path manager 21 of the cluster 2 accesses the logical path information table 12 to take over the processing of the logical path manager 11. Also, when data is transmitted and received between the cluster 2 and the partner system 3, the exclusive processing of the logical path information table 12 is not performed, so that the exclusive processing of the shared memory does not lower the communication efficiency.

The contents of the logical path information table 12 are logical path identification information for identifying a logical path and cluster identification information for identifying a cluster to which the logical path is assigned. Then, the online processing unit 13 sends the logical path client 1
4 requests the logical path manager 11 to allocate a logical path to be used in the cluster 1.

The logical path manager 11 allocates logical paths to the cluster 1 according to a predetermined rule, such as sequentially allocating logical paths of the number obtained by dividing the total number of logical paths by the number of clusters. For example, when the logical path 1 and the logical path 2 are allocated to the cluster 1, the logical paths are allocated to the “path 1” and “path 2” which are the logical path identification information for identifying the allocated logical paths. "Cluster 1" which is cluster identification information for identifying a cluster is set in the logical path information table 12, and the "path 1" and "path 2" of the logical path identification information are notified to the logical path client 14 of the cluster 1. To report the completion of logical path assignment. Even when the online processing unit 23 of the cluster 2 is activated, the same processing is performed for the logical path 3 and the logical path 4, and the logical path client 24 of the cluster 2 transmits “path 3” and “path 4” of the logical path identification information. Report.

Next, the logical path manager 11 updates the logical path information table 12 every time a logical path is assigned.
Is distributed to the communication processing devices 100 and 200 connected to each cluster. In the communication processing apparatus 100, the distributed logical path information table 12 is received by the logical path client 104, and the information is managed and updated. Similarly, the communication processing device 200 manages and updates the information of the logical path information table 12 received by the logical path client 204.

When a transmission request to the partner system 3 is generated by executing the business process in the cluster 1, the online processing unit 13 of the cluster 1
When the logical path client 14 reports, for example, "path 1" as logical path identification information, the reported logical path identification information "path 1" is embedded in the transmission data 15. Then, an arbitrary communication processing device, for example, the communication processing device 100 is selected from the communication processing devices in which the content of the communication processing device status management table for managing the state of the communication processing device indicates the communicable state, and the embedding is performed. The transmitted transmission data 15 is transmitted. Communication processing unit 1 of the selected communication processing device 100
03 receives the transmission data 15 transmitted from the cluster 1 and transfers it to the partner system 3.

If there is a communication processing device that is stopped when the above-mentioned communication processing device is selected, another communication processing device is selected while avoiding the stopped communication processing device. Periodic maintenance can be performed by stopping some of the communication processing devices in the communication processing device, and the system can be operated for 24 hours as an online system even during the periodical maintenance.

The partner system 3 receives the transmission data 15 transferred from the communication processing device 100, processes the transmission data 15, and converts “path 1” of the logical path identification information embedded in the transmission data 15. The line is read out and embedded in the response data 35, and the line 42 that is free at that time is selected and transmitted as a response.

Communication processing device 2 receiving response data 35
00 reads the “path 1” of the logical path identification information embedded in the response data 35,
The logical path client 204 is queried for cluster identification information corresponding to “path 1”. The logical path client 204 searches for information in the logical path information table 12 distributed from the logical path manager 11 and determines “path 1”.
"Cluster 1" is returned to the communication processing unit 203 as cluster identification information corresponding to. The communication processing unit 203 receives a response from the logical path client 204 and transmits response data 35 to the cluster 1 as a response.

FIG. 2 is a diagram showing a data flow for returning response data to the cluster that has transmitted the transmission data according to the present embodiment. In FIG. 2, the transmission data 15 from the cluster 1
1 and transmitted to the partner system 3 via the
5 shows a data flow when response data 35 is transmitted to the cluster 1 via the line 42 as a response.

The cluster 1 embeds the logical path identification information “path 1” in the transmission data 15 and transmits it to the partner system 3 via the communication processor 100 and the line 41. After processing the transmission data 15, the partner system 3 embeds the logical path identification information “path 1” embedded in the transmission data 15 in the response data 35, and
Is transmitted to the communication processing apparatus 200 via the line 42, and the response data 3 is obtained from the information of the logical path information table 12 of the logical path client 204 and the logical path identification information in the response data.
5 is returned to cluster 1.

FIG. 3 is a flowchart showing a processing procedure of the logical path manager 11 on the cluster 1 according to the present embodiment. As shown in FIG. 3, the logical path manager 11 on the cluster 1 responds to a logical path assignment request or a deletion request from the logical path client 14 of the cluster 1 or the logical path client 24 of the cluster 2 to the logical path information table 12 Performs an update and requests logical path client 1
4 or a result report to the logical path client 24 and distribution of information of the logical path information table 12 to the communication processing apparatus 100 and the communication processing apparatus 200.

In the present embodiment, the logical path manager 11 on the cluster 1
Or when a processing request is received from the logical path client 24 of the cluster 2, the processing content is checked in step 301,
If the processing content is a logical path assignment request, the process proceeds to step 302 and subsequent steps for assigning a logical path. If not, the process proceeds to step 305.

In step 302, the number of logical paths obtained by dividing the total number of logical paths used between the clusters 1 and 2 and the partner system 3 by the number of clusters is allocated to the cluster that has made the allocation request, and the allocation is performed. The logical path identification information for identifying the assigned logical path and the cluster identification information for identifying the cluster to which the logical path is assigned are stored in the logical path information table 12 in association with each other.

In step 303, the logical path identification information of the allocated logical path is reported to the logical path client of the cluster to which the logical path is allocated. In step 304, the logical path information table 12 updated by the allocation is reported. Is distributed to the communication processing devices 100 and 200.

In step 305, it is checked whether or not the processing content is a logical path information deletion request. If the processing content is a logical path information deletion request, the flow advances to step 306. In step 306, the logical path information table 12 is searched using the logical path identification information sent together with the logical path information deletion request as a search key, and the contents of the cluster identification information corresponding to the logical path identification information are deleted. Step 30
In step 7, the contents of the logical path information table 12 updated by the deletion request are distributed to the communication processing devices 100 and 200.

FIG. 4 is a flowchart showing a processing procedure of the processing of the logical path client 104 on the communication processing apparatus 100 of the present embodiment. As shown in FIG.
In response to the distribution of the information of the logical path information table 12 from the logical path manager 11 on the cluster 1, the logical path client 104
And updates the logical path information held therein, and in response to an inquiry about the cluster identification information from the communication processing unit 103, reports the cluster identification information corresponding to the relevant logical path identification information. The logical path client 204 on the communication processing device 200 performs the same processing.

When the logical path client 104 on the communication processing apparatus 100 of the present embodiment receives a processing request from the logical path manager 11 of the cluster 1 or the communication processing unit 103, it checks the processing contents in step 401 and checks the processing contents. Is a logical path information update request,
02, and if it is not a logical path information update request, the flow proceeds to step 403.

In step 402, the information of the logical path information table 12 received from the logical path manager 11 is
The logical path information is written into the logical path information held by the logical path client 104, and the logical path information is updated.

In step 403, it is checked whether or not the processing content is an inquiry for cluster identification information. If it is an inquiry for cluster identification information, the process proceeds to step 404 and subsequent steps for performing the inquiry processing.

At step 404, an entry of the logical path information held by the logical path client 104 is read, and whether the logical path identification information of the entry matches the logical path identification information received together with the inquiry of the cluster identification information is determined. It is checked whether they match, and if they match, the cluster identification information in the entry is reported to the communication processing unit 103 in step 405, and the process ends.

As a result of the check in step 404, if the logical path identification information of the entry does not match the logical path identification information received with the inquiry of the cluster identification information, the process proceeds to step 406, and the entry is not the last entry. In this case, the process returns to step 404 to read the next entry.

FIG. 5 is a diagram showing an outline of control for stopping one communication processing device during the operation of the online system according to the present embodiment. As shown in FIG. 5, the online processing unit 13 on the cluster 1 has a communication processing device status management table for managing the status of the connected communication processing device 100 and the communication processing device 200. Manages the communication state between

The online processing unit 13 on the cluster 1
When the communication with each communication processing device is established, the content of the item indicating the state of the communication processing device is updated from “stopped” to “communicating”. In addition, when an online system administrator inputs an instruction to stop communication with a specific communication processing device, or monitors a voltage value of a communication interface with each communication processing device, the power of the communication processing device is turned off. When detecting a state in which communication with the communication processing device cannot be performed, such as when a response from each communication processing device is not received for a predetermined period of time, the contents of the item indicating the state of the communication processing device To "Stopped".

For example, when the power of the communication processing apparatus 100 is turned off and its operation is stopped, the power-off is detected, and FIG.
The content of the item indicating the status of the communication processing device 100 in the communication processing device status management table is changed to “stopped” as shown in FIG. In this state, when a transmission request to the partner system 3 is issued to the cluster 1, the online processing unit 13 refers to the communication processing device state management table, and the content of the item indicating the state is “communicating”. Communication processing device 2
Pass the transmission data to 00.

If there are a plurality of communication processing apparatuses whose contents of the item indicating the state are “communicating”,
It is assumed that communication with the partner system 3 is performed by sequentially selecting communication processing devices in which the content of the item indicating the state is “communicating” by a method such as round robin.

As described above, in the present embodiment, the partner system 3
When the communication with the partner system 3 is performed, the communication processing device that can communicate with the partner system 3 is determined by searching the communication processing device status management table when communicating with the communication system. Even if the device is stopped, communication with the partner system 3 can be continued by another communication processing device.

FIG. 6 is a diagram showing an outline of control for starting a logical path manager in another cluster due to a cluster failure in this embodiment. As shown in FIG. 6, in the present embodiment, the cluster 1 and the cluster 2 are connected by an inter-cluster communication path 43, and the logical path client 14 on the cluster 1 and the logical path client 24 on the cluster 2 periodically monitor messages. To monitor each other.

Logical path client 24 on cluster 2
If the response to the monitoring message transmitted from the client to the logical path client 14 on the cluster 1 does not occur even after the elapse of a predetermined time, and a predetermined number of timeouts occur consecutively, the logical path client 24 After transmitting the stop request to the cluster 1, if the cluster 1 to which the stop request has been transmitted is the cluster on which the logical path manager has been activated, the cluster 2 executes the logical path manager 21. Start
Here, information indicating in which cluster the logical path manager is activated is distributed to each cluster when the logical path manager is activated, and when a failure occurs in the cluster in which the logical path manager is activated. It is assumed that information indicating in which cluster the logical path manager is to be activated is distributed to each cluster in advance.

The logical path manager 21 started when a failure occurs in the cluster 1 causes the logical path information table 12 to make the logical paths 1 and 2 used in the cluster 1 usable in the cluster 2. To update.
That is, the cluster identification information corresponding to “path 1” and “path 2” of the logical path identification information in the logical path information table 12 is changed to “cluster 2” and the logical path 1 and the cluster 2 of the logical path 2 are changed to “cluster 2”. And the updated logical path information table 12 is redistributed to the communication processing devices 100 and 200.

As described above, when a failure occurs in the cluster 1, the logical path manager 21 is started in the cluster 2, and the logical path assigned to the cluster 1 is reassigned to another cluster. Route information table 1
2 is redistributed to the communication processing apparatus 100 and the communication processing apparatus 200, so that even in the event of a cluster failure, the information in the logical path information table 12 before that can be taken over and communication can be continued.

Although the above description has been made of the case of a two-cluster configuration, processing can be performed in the same manner as described above even when the number of clusters is three or more.

As described above, according to the present embodiment, the information processing apparatus is made redundant by clustering, a multiplexed redundant configuration is completely adopted up to the communication processing apparatus and the communication line, and the reliability as an online system is improved. In the case of improvement, overhead such as exclusion processing of the shared memory can be minimized. In addition, since all the components of the online system are multiplexed, the online system can continue to operate even if one device is stopped, so regular maintenance can be performed while the online system is running , And an online system for continuous operation for 24 hours can be realized.

As described above, according to the communication processing system of this embodiment, the cluster corresponding to the logical path identification information embedded in the response data is read from the logical path information table, and the response data is sent to the cluster. Since the response is transmitted, it is possible to minimize the overhead when the online system has a redundant configuration and improve its reliability.

[0066]

According to the present invention, the cluster corresponding to the logical path identification information embedded in the response data is read from the logical path information table, and the response data is transmitted as a response to the cluster. It is possible to improve the reliability of the configuration by minimizing the overhead.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a schematic configuration of a communication processing system according to an embodiment.

FIG. 2 is a diagram illustrating a data flow for returning response data to a cluster that has transmitted transmission data according to the present embodiment.

FIG. 3 is a flowchart illustrating a processing procedure of a logical path manager 11 on the cluster 1 according to the present embodiment.

FIG. 4 is a flowchart illustrating a processing procedure of processing of a logical path client 104 on the communication processing apparatus 100 according to the embodiment.

FIG. 5 is a diagram showing an outline of control for stopping one communication processing device during online system operation of the embodiment.

FIG. 6 is a diagram illustrating an outline of control for starting a logical path manager in another cluster due to a cluster failure according to the embodiment;

[Explanation of symbols]

1 cluster, 2 cluster, 3 partner system, 12
... Logical path information table, 15 ... Transmission data, 35 ... Response data, 41 ... Line, 42 ... Line, 100 ... Communication processor, 200 ... Communication processor, 11 ... Logic path manager, 13 ... Online processor, 14 ... Logical path client, 21 Logical path manager, 23 Online processing unit, 24 Logical path client, 103 Communication processing unit, 104 Logical path client, 203 Communication processing unit, 204 Logical path client, 43 Intercluster Communication path.

Claims (5)

[Claims] In a communication processing method for performing communication between a plurality of clusters and a partner system via a plurality of communication processing devices, the communication processing method is a logical communication path for identifying communication with the partner system. A logical path is assigned to a cluster, and logical path identification information for identifying the assigned logical path and cluster identification information for identifying the cluster to which the logical path is assigned are updated to update the logical path information table. Reporting the logical path identification information of the allocated logical path to the cluster to which the logical path is allocated, and distributing the contents of the logical path information table updated by the allocation to each communication processing device. Steps: When a transmission request occurs in a cluster, the logical path identification information reported to the cluster is included in the transmission data. And transmitting the cluster identification information corresponding to the logical path identification information embedded in the response data received from the other system from the distributed logical path information table. Reading and transmitting the response data as a response to the cluster identified by the cluster identification information. 2. A communication processing device in which the content of a communication processing device status management table for managing the status of the communication processing device indicates a communicable state when the transmission request is generated, and transmits transmission data to a partner system. The communication processing method according to claim 1, wherein: 3. The logical path information table is stored in a storage device accessible from a plurality of clusters, and when a failure occurs in a specific cluster to which the logical path is assigned, the other clusters 3. The communication processing method according to claim 1, wherein the logical path information table is accessed to continue assignment of the logical path. 4. A logical communication path for identifying communication with a partner system in a communication processing system for communicating between a plurality of clusters and a partner system via a plurality of communication processing devices. A logical path is assigned to a cluster, and logical path identification information for identifying the assigned logical path and cluster identification information for identifying the cluster to which the logical path is assigned are updated to update the logical path information table. A logical path manager that reports the logical path identification information of the allocated logical path to the cluster to which the logical path is allocated, and distributes the contents of the logical path information table updated by the allocation to each communication processing device. When a transmission request occurs in a cluster, the logical path identification information reported to the cluster is embedded in the transmission data, An on-line processing unit for transmitting to the partner system via the communication processor, and reading cluster identification information corresponding to the logical path identification information embedded in the response data received from the partner system from the distributed logical path information table. A logical path client for transmitting the response data to the cluster identified by the cluster identification information. 5. A computer-readable recording medium in which a program for causing a computer to function as a communication processing system for communicating between a plurality of clusters and a partner system via a plurality of communication processing devices is provided. A logical path, which is a logical communication path for identifying communication with the logical path, is assigned to a cluster, logical path identification information for identifying the assigned logical path, and a cluster to which the logical path is assigned. The logical path information table is updated by storing the cluster identification information for performing the logical path identification, and the logical path identification information of the allocated logical path is reported to the cluster to which the logical path is allocated. A logical path manager that distributes the contents of the path information table to each communication processor, When an error occurs, the logical path identification information reported to the cluster is embedded in the transmission data and sent to the partner system via the communication processing device, and the logical path identification information is embedded in the response data received from the partner system. Read the cluster identification information corresponding to the logical path identification information from the distributed logical path information table, and cause the computer to function as a logical path client that transmits the response data to the cluster identified by the cluster identification information. Recording medium on which a program for recording is recorded.