JP2001306541A - Parallel processing verifying method, apparatus for executing the same, and recording medium with recorded processing program therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology, capable of verifying the operation of an application program in a parallel processing system, which requires parallel processing by means of plural information processors, with fewer resources. SOLUTION: Concerning the parallel processing verifying method for verifying the operation of parallel processing with communication processing between different information processors, this method has a step for acquiring the destination host address of a communication system call called by parallel processing of a verify target, a step for translating the acquired destination host address to the real host address of the information processor, in which parallel processing is operated, of the destination while referring to a destination translation table showing the correspondence between a virtual host address assigned to each of parallel processing of the verify target and the real host address of the information processor, in which the relevant parallel processing is operated, and a step for issuing the communication system call of the translated destination host address.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parallel processing verification system for verifying the operation of a program for performing parallel processing, and more particularly, to verifying the operation of an application program operating in a multi-server processing system which requires a plurality of servers. The present invention relates to a technology effective when applied to a parallel processing verification system performed by a machine.

[0002]

2. Description of the Related Art In a processing method in which a plurality of server machines are used and parallel processing is performed to improve throughput, independent plurality of server machines are connected via a network, processing is distributed among the plurality of server machines, and parallel processing is performed. There is a multi-server processing method that increases the degree.

In such a system, the number of server machines corresponding to the degree of parallel processing is also used when verifying the operation of an application program that operates while distributing the load among servers.

As a method for reducing the number of real servers to be used at the time of confirming the operation of an application program, a plurality of independent OSs are operated by one computer, and each application program is operated on the OS.
Japanese Patent Application Laid-Open No. H11-149385 discloses a "multi-OS configuration method" that can verify a cooperative operation by performing communication between application programs through communication via an OS.

[0005]

In the prior art, operation verification of an application program operating in a multi-server processing system in which a plurality of server machines are connected via a network and processed in parallel is performed on one real server machine. Since it is necessary to start the OS for each application program and a large amount of CPU and memory resources are required, the number of operable servers is limited.

An object of the present invention is to solve the above-mentioned problem and to provide a technique capable of verifying the operation of an application program of a parallel processing method requiring parallel processing by a plurality of information processing apparatuses with less resources. It is in.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a parallel processing verification system for verifying the operation of parallel processing involving communication processing between different information processing apparatuses, in which a plurality of parallel processing operations having different host addresses are set. The verification is performed on a single information processing device.

In the parallel processing verification system of the present invention, when verifying the operation of an application program process of parallel processing involving communication processing between different information processing apparatuses, a plurality of application program processes having different host addresses are simply set. Operate on one information processing device. At this time, when communication between the application program processes occurs, conversion of the destination host address is performed so that each application program process operates on a virtually different information processing apparatus as viewed from the individual application program process. .

For example, when the application program process for parallel processing is a database server,
A host address such as an IP (Internet Protocol) address is assigned to each virtual server so that the application program process of each database server is running on a virtually different server, as if the server existed. I do.

The network definition of an application program that runs on a server group including a virtual server is defined including the IP address assigned to the virtual server. Thus, from the application program process,
Inter-process communication between servers is performed as if a virtual server exists. Inter-process communication between servers of an application program process operating on a plurality of servers is performed, for example, by using TCP / IP (Transmiss
Use the ion Control Protocol / Internet Protocol) socket interface. In the TCP / IP system call, the destination of communication is uniquely managed by the IP address and the port number of the process.
This is realized by rewriting the IP address passed to the transport layer system call to the IP address of the actual server environment.

The destination conversion unit converts an IP address during a system call from a process of a server to a process of a virtual server from the IP address assigned to the virtual server to the IP address of a server in which the virtual server actually exists. As a result, a plurality of servers exist as if from a source process, and the servers are operated as if they are communicating there.

To convert the destination, the I
A conversion table from the P address to the actual server IP address is created, and the IP address of the communication system call is converted according to the contents. Thus, the application programs operating on the plurality of servers can communicate with each other as if the plurality of servers existed, so that the operation of the application programs can be verified.

As described above, according to the present invention, it is possible to operate as if a plurality of servers exist on one OS of one server machine, so that parallel processing on a plurality of server machines is required. This has the effect of reducing CPU and memory resources when the operation verification of the application program of the multi-server processing method is performed on one real server.

As described above, according to the parallel processing verification system of the present invention, the operations of a plurality of parallel processes to which different host addresses are set are verified on a single information processing apparatus.
It is possible to perform operation verification of an application program of a parallel processing method that requires parallel processing in a plurality of information processing devices with less resources.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A parallel processing verification system according to one embodiment for verifying the operation of parallel processing involving communication processing between different server machines will be described below.

FIG. 1 is a diagram showing a schematic configuration of a parallel processing verification system according to this embodiment. As shown in FIG. 1, the real server 20 according to the present embodiment includes a destination acquisition processing unit 101, a destination conversion processing unit 102, and an issuance processing unit 103.

The destination acquisition processing unit 101 is a processing unit that acquires a destination IP address of a communication system call called by an application program process that is a parallel process to be verified. The destination conversion processing unit 102 refers to a destination conversion table indicating a correspondence between a virtual IP address assigned to each application program process to be verified and an IP address of a real server on which the application program process is operating, The obtained destination IP address is changed to the IP of the real server on which the application program process of the destination is running.
It is a processing unit for converting to an address. Issue processing unit 103
Is a processing unit for issuing a communication system call in which the destination IP address has been converted.

A program for causing the real server 20 to function as the destination acquisition processing unit 101, the destination conversion processing unit 102, and the issuance processing unit 103 is recorded on a recording medium such as a CD-ROM and stored on a magnetic disk or the like. It shall be loaded into memory and executed. The recording medium for recording the program may be a recording medium other than the CD-ROM.

Here, the destination conversion unit 12 of the real server 10 performs the same processing as the destination conversion unit 22 of the real server 20.

The application program process of parallel processing shown in FIG. 1 is a process for a database server that performs parallel database processing by a plurality of information processing devices. An example in which the virtual server 50 and an arbitrary plurality of virtual servers 50 operate as if they exist in the real server 20 is shown. Here, the real server is a computer, and the application program process identifies each virtual server by an IP address.
By setting and operating different IP addresses for each application program process, it is possible to operate as if a plurality of servers exist.

The real server 10 includes an application program process 11, a destination conversion unit 12, and a destination conversion table 13. The real server 20 includes an application program process 21, a destination conversion unit 22, a destination conversion table 23, a virtual server 30, a virtual server 40,
A virtual server 30 has an application program process 31, a virtual server 40 has an application program process 41, and a virtual server 50 has an application program process 51.

Each server is provided with an IP address for identifying the server. Real server 10 that is server A
Is an IP address of “IPA”, the real server 20 as the server B is “IPB”, the virtual server 30 as the virtual server C is “IPC”, and the virtual server 4 as the virtual server D
It is assumed that 0 is “IPD” and the virtual server 50 that is a virtual server n is an IP address such as “IPn”.

Each application program process is assigned a port for communication. The port of the application program process 11 is “port A”, the application program process 21 is “port B”, the application program process 31 is “port C”, the application program process 41 is “port D”, and the application program process 51 is “port A”. Communication is performed using port n '.

The actual server configuration is the real server 10 (IP
Address 'IPA') and the real server 20 (IP address 'IPB'), but the application program processes 11, 21, 31, 41, and 51 additionally include the virtual server 30 (IP address 'IPC') and the virtual server 40.
(IP address 'IPD') and the virtual server 50 (IP address 'IPn') are defined, and the servers communicate with each other.

Communication between application program processes is performed using a TCP / IP socket interface. In the TCP / IP system call, the destination of communication between application programs and processes is managed by the IP address and the port number of the process.

The destination IP address of the communication system call from the application program process of a certain server to the application program process of the virtual server is converted into a virtual server (virtual server 30, virtual server 40, virtual server 50) by the destination conversion unit 12 or 22. Is converted to the IP address of the real server 20 which is present, the application program process of the transmission source
It can operate as if communicating with multiple servers.

To convert the destination, the destination conversion tables 13 and 2 are converted from the IP address of the actual server configuration (real server 10 and real server 20) and the IP address added to the virtual server.
3 is created and the destination is converted according to the contents.

FIG. 2 is a diagram showing a comparison between a communication definition and an actual server environment definition as viewed from the application program process of the present embodiment. In FIG. 2, a table 60 shows server names, IP addresses, port numbers, actual server names and IP addresses defined in the application program process in the configuration of FIG.

FIG. 3 shows the destination conversion table 13 of this embodiment.
And FIG. In the communication 51 from the application program process 11 of the real server 10 to the application program process 21 of the real server 20, an existing real server 20 (IP address: IPB),
No conversion is performed for communication to port B.

In the communication 52 from the application program process 11 of the real server 10 to the application program process 31 of the virtual server 30, the destination conversion unit 12 communicates with the virtual server 30 (IP address: IPC) which is a virtual server. In accordance with the destination conversion table 13 defined in advance, the destination IP address is
IPB which is the IP address of the real server 20 existing from
And issues a communication system call. This enables communication to the port C of the real server 20 (IPB).

Application program process 21
Is a communication to the virtual server 30 (IP address: IPC), which is a virtual server in the same real server, and the destination IP address is changed by the destination conversion unit 22 in accordance with the destination conversion table 23. By issuing a communication system call by substituting the IP address of the real server 20 with the IP address IPB, the communication system call is issued as if communicating with another server within the same server.

The communication system call in which the replacement takes place is the conn of the TCP / IP socket interface.
ect, bind, and accept are assumed. When the communication system call is called, the destination conversion unit 12 or 22 is called and operates upon the call.

FIG. 4 is a view showing an example of conversion by the destination conversion unit 22 of a communication system call called from the process of the present embodiment. FIG. 4 shows an example in which the communication 54 from the application program process 31 to the application program process 41 is replaced by the destination conversion unit 22 for an actual communication system call.

Application program process 41
Then, when a bind (IPD) communication system call is called according to the communication definition viewed from the application program process 41, the destination conversion unit 22 is called upon the call, and the destination IP address is converted according to the contents of the destination conversion table 23. Generate and call bind (IPB). Similarly, accept (IPC) is also converted to accept (IPB) by the destination conversion unit 22.

Application program process 31
However, in order to communicate with the application program process 41, when a connect (IPD) communication system call is called, the destination conversion unit 22 is called upon that call, converts the IP address, and connects (IPD).
By generating and calling B), communication between the application program process 31 and the application program process 41 is realized.

FIG. 5 is a diagram showing a list of IP address conversion according to this embodiment. In FIG. 5, I in the destination conversion units 12 and 22 for the inter-process communication in the configuration example of FIG.
9 shows a list of P address replacement. In the example of FIG. 4 (communication 54), the transmission is server C and the reception is server D, and the transmission side communication system call connect
t, receiving communication system call bind, accept
To what is automatically converted to the IP address.

FIG. 6 shows the destination conversion units 12 and 2 of this embodiment.
6 is a flowchart illustrating a processing procedure of No. 2; When each of the application program processes 11, 21, 31, 41, and 51 issues a communication system call, the destination conversion unit 12 or 22 of the present embodiment is called at the opportunity thereof,
In step 81, the destination acquisition processing unit 101 of the destination conversion unit 12 or 22 acquires the destination IP address of the issued communication system call.

After obtaining the destination IP address of the communication system call, at step 82 the destination conversion unit 12 or 22
The destination conversion processing unit 102 acquires the IP address to be converted with reference to the destination conversion table 13 or 23.

In step 83, the destination conversion processing unit 102
It is determined whether or not the destination IP address of the issued communication system call is an IP address to be converted.
3 and issues a communication system call without IP address conversion and returns.

If the result of the determination in step 83 is that the destination IP address of the issued communication system call is the IP address to be converted, the flow proceeds to step 85, and the issued communication is performed according to the destination conversion table 13 or 23. The destination IP address of the system call is converted to the IP address of the real server on which the destination application program process is running. Thereafter, in step 86, the issuance processing unit 103 issues a communication system call with the converted destination IP address, and returns.

By the above method, a plurality of virtual servers (virtual server 30, virtual server 4
0, by defining the IP address of the virtual server 50), the application can be operated as if a plurality of server machines exist on one server machine.

As described above, according to the present embodiment, it is possible to operate as if a plurality of servers exist on one OS of one server machine, so that parallel processing on a plurality of server machines is required. This has the effect of reducing the CPU and memory resources when verifying the operation of a multi-server processing application program on a single real server.

As described above, according to the parallel processing verification system of the present embodiment, the operations of a plurality of parallel processes to which different host addresses are set are verified on a single information processing apparatus. The operation verification of the application program of the parallel processing method that requires parallel processing in the device can be performed with less resources.

[0044]

According to the present invention, the operation of a plurality of parallel processes set with different host addresses is verified on a single information processing device. The operation verification of the application program of the system can be performed with less resources.

[Brief description of the drawings]

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

FIG. 2 is a diagram illustrating a comparison between a communication definition and an actual server environment definition as viewed from an application program process of the embodiment.

FIG. 3 is a diagram illustrating an example of destination conversion tables 13 and 23 according to the present embodiment.

FIG. 4 is a diagram illustrating an example of conversion of a communication system call called from the process of the embodiment by the destination conversion unit 22;

FIG. 5 is a diagram showing a list of IP address conversion according to the embodiment;

FIG. 6 is a flowchart illustrating a processing procedure of destination conversion units 12 and 22 according to the present embodiment.

[Explanation of symbols]

10 real server, 11, 21, 31, 41, 51 application program process, 12 and 22 destination conversion unit, 13 and 23 destination conversion table, 20 real server, 30, 40, 50 virtual server 51 , 52, 5
3, 54: communication, 101: destination acquisition processing unit, 102: destination conversion processing unit, 103: issue processing unit.

Claims (5)

[Claims] 1. A parallel processing verification method for verifying the operation of parallel processing involving communication processing between different information processing apparatuses, comprising: obtaining a destination host address of a communication system call called by the parallel processing to be verified; The destination host address obtained by referring to the destination conversion table indicating the correspondence between the virtual host address assigned to each parallel processing to be verified and the actual host address of the information processing apparatus in which the parallel processing is operating To the actual host address of the information processing apparatus in which the parallel processing of the destination is operating, and a step of issuing a communication system call with the converted destination host address. Processing verification method. 2. The parallel processing verification method according to claim 1, wherein the parallel processing performs communication between a plurality of database servers to execute database processing in parallel. 3. The parallel processing verification method according to claim 1, wherein the host address is an IP address for identifying an information processing apparatus on which each parallel processing operates. 4. A destination acquisition process for acquiring a destination host address of a communication system call called by a parallel process to be verified in a parallel processing verification system for verifying an operation of a parallel process involving a communication process between different information processing apparatuses. And the destination conversion table indicating the correspondence between the virtual host addresses assigned to the respective parallel processes to be verified and the actual host addresses of the information processing apparatuses on which the parallel processes are operating, and A destination conversion processing unit that converts a destination host address into an actual host address of an information processing apparatus in which parallel processing of the destination is operating; and an issue processing unit that issues a communication system call in which the destination host address is converted. A parallel processing verification system comprising: 5. A computer-readable recording medium on which a program for causing a computer to function as a parallel processing verification system for verifying the operation of parallel processing involving communication processing between different information processing apparatuses is provided. And a virtual host address assigned to each parallel process to be verified and the actual information processing device of the information processing apparatus on which the parallel process is operating. A destination conversion processing unit that refers to a destination conversion table indicating a correspondence with a host address, and converts the obtained destination host address into an actual host address of an information processing apparatus in which parallel processing of the destination is operating; The issue processing unit issues a communication system call with the translated destination host address. Recording medium characterized by recording a program for the functioning of the Yuta.