JPH09325895A - Tuple space communication monitoring device and its monitoring method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the reliability of a tuple space communication system by monitoring the operation state of the tuple space communication among plural processes to be executed while exchanging tuple being structured data in a tuple space (a shared data area) shared by plural processes in a network. SOLUTION: Message decoding means 6-1 to 6-n receive a message to be transmitted/received between plural application processes and plural tuple space communication equipments 5-1 to 5-n and judge whether the message is a message for operating the tuple space or not. In the case of a message for operating the tuple space, tuple space operation recording means 7-1 to 7-n record the message in tuple space operation recording files 8-1 to 8-n to record operating information for the tuple space. Even after the end of a process, an operator grasps operation record in the tuple space and monitors the operation state of tuple space communication.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention monitors the communication status of a tuple space (shared data area) used when transmitting information between a plurality of distributed processes on a network using tuples which are structured data. The present invention relates to a tuple space communication monitoring device and a monitoring method thereof.

[0002]

2. Description of the Related Art As a conventional technique relating to a communication method between a plurality of distributed processes performed via a tuple space, that is, a tuple space communication, there is, for example, Japanese Patent Laid-Open No. 7-28732.
There is a technique disclosed in the official gazette. FIG. 9 is a block diagram showing a conventional tuple space communication device disclosed in Japanese Patent Laid-Open No. 7-28732.
Is a plurality of computers (# 1 to # 3) as nodes, 4 is a network connecting the plurality of computers 15, 3 is an application process (P1 to P4) operating on each computer of the plurality of computers 15, 16 Is a tuple space communication device that executes tuple space communication of the application process 3 performed via the tuple space.

FIG. 10 is a detailed block diagram showing the tuple space communication device shown in FIG.
Reference numeral 7 is a tuple space name, 18 is a tuple to be input to the tuple space 2, 19 is a tuple operation identifier indicating an operation on the tuple space 2, 20 is tuple operation additional information as optional information, and 21 is to the tuple space communication device 16. A message to be transmitted, 22 is the processing result of the application process, 23 is information such as tuple space name 17, tuple 18, tuple operation identifier 19, tuple operation additional information 20 and the like, which is transmitted to the tuple space communication device 16 or tuple space communication device 16. A message processing unit that separates the tuple 18 in the message 21 received from the space communication device 16 and sends it to the application process 3 side, 24 is a request analysis / transfer / processing unit, 25 is a network control unit, and 26 is tuple space management. Part 27 is a tuple space management table Le, 28 tuple space region and 2, is a tuple space.

Next, the operation will be described. In FIG. 9, a plurality of nodes, that is, the computers 15 are connected by the network 4, and the application process 3 operates on each computer 15. Each computer 1
5, a tuple space communication device 16 that provides tuple space type inter-process communication is operating.

As shown in FIG. 10, the message processing unit 23 has a function of controlling communication between the application process 3 and the tuple space communication device 16.
The application process 3 has a tuple space name 17 to be a target and a tuple 18 to be input to the tuple space 2.
It holds a tuple operation identifier 19 indicating an operation on the tuple space 2 and tuple operation additional information 20 as optional information. The message processing unit 23 on the side of the application process 3 assembles these pieces of information and outputs the message 21 as a tuple space communication device 16
And the message 21 transmitted from the tuple space communication device 16 is received, and the processing result 22 and the tuple 18 stored in the message 21 are cut out.

Further, when the message processing unit 23 on the tuple space communication device 16 side receives the message 21 transmitted from the application process 3, the information in the received message 21 is transmitted to the request analysis / transfer / processing unit 24. To do. The request analysis / transfer / processing unit 24 identifies a node (for example, a computer) in which the tuple space 2 exists based on the information of the tuple space name 17 stored in the received message.

When the identified node is its own node, the request analysis / transfer / processing unit 24 requests the tuple space management unit 26 to start processing based on the information in the message 21. The tuple space management unit 26 executes processing based on this request, and returns the processing result 22 to the application process 3 via the message processing unit 23.

On the other hand, when the tuple space name 17 is analyzed and it is determined that the tuple space 2 exists on another node, the request analysis / transfer / processing unit 24 sends the tuple space 2 via the network control unit 25 of its own node. And transfers the request based on the information in the message to the network control unit 25 on the other node. Network control unit 25 on another node
Receives the transferred request, the tuple space management unit 26 in its own node executes processing based on the received request, and outputs the processing result 22 to the requesting network control unit 25.
Reply to.

The requesting network control unit 25 receives the processing result 22 and then transmits it to the request analysis / transfer / processing unit 24. After that, the request analysis / transfer / processing unit 24 transmits the processing result 22 to the application process 3 via the message processing unit 23.

[0010]

Since the conventional tuple space communication device is configured as described above, the operation status of tuple space type inter-process communication performed through a plurality of tuple space communication devices on the network. However, there are problems 1 to 3 described below.

Problem 1: The operation executed by the tuple space communication device is not stored in the tuple space managed by the tuple space communication device, and the operator has access patterns to the tuple space for each process. Couldn't figure out.

Problem 2: The tuple space existing in the tuple space managed by the tuple space communication device cannot be continuously confirmed by the operator, and the usage status of each tuple space having a different configuration can be easily recognized. It could not be displayed to the operator.

Problem 3: Since the operator could not know the information of the tuple existing in the shared data area having the tuple space at any time when the process was started, the tuple was not loaded or unloaded. It was not possible to confirm whether the operation was executed correctly.

The present invention has been made to solve the above problems, and is a tuple space (shared data area) shared by a plurality of processes on a network.
A tuple space communication monitoring apparatus and a monitoring method for monitoring the operation status of tuple space communication between a plurality of processes performed by exchanging tuples which are structured data in a tuple space communication system and improving the reliability of the tuple space communication system. The purpose is to

[0015]

In the tuple space communication monitoring apparatus according to the present invention, a message decoding means transmits / receives a message between a plurality of application processes on the network and a plurality of tuple space communication apparatuses. To determine whether the message is a tuple space manipulation message. The tuple space operation recording means, when the message is a message for operating the tuple space, records the message in the tuple space operation recording file, and stores the tuple space in the message transmitted and received between the tuple space communication device and the application process. The operation information is recorded, and the operation status of tuple space communication is monitored so that the operator can easily grasp the operation record in the tuple space even after the end of the process, and the reliability of the communication system is improved. .

In the tuple space communication monitoring apparatus according to the second aspect of the present invention, the message deciphering means determines whether or not the message is a tuple space operating message, and the message includes an instruction to operate the tuple space. The operation information for the tuple space in the message transmitted / received between the tuple space communication device and the application process is recorded based on this determination.

In the tuple space communication monitoring apparatus according to the third aspect of the present invention, when the message decoding means determines that the message is a message for operating the tuple space, the tuple storage means applies the information based on the information in the message. The tuple space to be operated and the information about the tuple are stored, the tuple display means displays the information stored in the tuple storage means to the operator, and the operator stores the tuple space in the tuple space managed by the tuple space communication device. Information is easily confirmed and the reliability of the communication system is improved.

In the tuple space communication monitoring apparatus according to the fourth aspect of the present invention, when the tuple storage means is a message instructing the creation of tuple space, a new tuple space is created in the tuple storage means. However, if the message is an instruction to delete the tuple space in the tuple space communication device, the corresponding tuple space in the tuple storage means is deleted, and the tuple is added to the tuple space in the tuple space communication device. If the message is a message that adds the tuple corresponding to the tuple space in the tuple storage means and deletes the tuple from the tuple space in the tuple space communication device, the tuple storage means Delete the corresponding tuple in the corresponding tuple space of
By operating the tuple information in the tuple storage means so that the operator can easily grasp the information about the tuple in the tuple space, the operation status of the tuple space communication is monitored and the reliability of the communication system is improved. .

In the tuple space communication monitoring apparatus according to the present invention, the operator target input / output means receives a tuple reference request from the operator and displays the tuple reference result to the operator. According to the reference request, transmits to the tuple space communication monitoring device belonging to the tuple space node, or accepts the tuple reference request transmitted from the tuple space communication monitoring device of another node, the tuple reference means,
Receives the reference request sent from the operator or the inter-monitoring device communication means, refers to all tuples existing in the tuple space specified by the reference request, and at any time, the operator selects all tuple spaces existing in a tuple space. The information of tuples can be easily obtained to confirm whether the operation of loading or unloading tuples has been correctly executed, and the operating status of tuple space communication is monitored to improve the reliability of the communication system.

According to a sixth aspect of the present invention, there is provided a tuple space communication monitoring method, wherein a message transmitted and received between a plurality of application processes and a plurality of tuple space communication devices on a network is received, and the message is the tuple space. If it is a message that operates a tuple space, if the message is a content that operates a tuple space, record the message and store and display the tuple space and tuple information of the corresponding operation target,
It also accepts tuple reference requests from operators and other nodes. If the tuple space is a tuple space belonging to another node, the reference request is sent to the other node and the tuple space specified in the reference request is sent. All tuples existing inside are displayed, the reference result is displayed, and the reference result is sent to other nodes to monitor the tuple communication status. Even after the process ends, the operator can use tuple space or tuple. The operation status of tuple space communication is monitored so that the operation record of can be easily grasped, and the reliability of the communication system is improved.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. Embodiment 1. 1 is a block diagram mainly showing a tuple space communication monitoring apparatus according to Embodiment 1 of the present invention. In the figure, 1-1, 1-2 to 1-n are tuple space communication apparatuses (hereinafter, particularly distinguished from each other). If there is no need, they are collectively referred to by reference numeral 1), 2-1 and 2-2 to 2-n are tuple spaces in the tuple space communication device 1 (hereinafter, referred to as tuple space).
Reference numerals 2 and 3-1, 3-2 to 3-n are application processes (hereinafter, referred to as reference numeral 3 unless otherwise specified) unless otherwise distinguished.
And the internal message processing unit 23-1,
Communication with other processes is performed by using tuple space communication via 23-2 to 23-n (hereinafter, collectively referred to as reference numeral 23 unless particularly distinguished).

Reference numeral 4 is a network for connecting a plurality of application processes 3 and a plurality of tuple space communication devices 1, and 5-1 and 5-2 to 5-n are tuple space communication according to the first embodiment of the present invention. The tuple space communication device 1 is a monitoring device (generally referred to as a reference numeral 5 hereinafter unless otherwise specified) and monitors the tuple space communication status in the tuple space communication device 1. 6-1 and 6-2 to 6-n receive a message passing through the tuple space communication monitoring device 5, decode the message, and send the message to the tuple space communication device 1 (hereinafter, it is necessary to make a special distinction). If there is not, it is collectively referred to as 6), 7-1, 7-2 to 7
-N is a tuple space operation recording means for recording the operation on the tuple space 2 in the tuple space operation recording files 8-1, 8-2 to 8-n (hereinafter, collectively referred to as 8 unless particularly distinguished). (Hereinafter, they are collectively referred to by the reference numeral 7 unless it is necessary to distinguish them).

If the request message received from the message processing unit 23 in the application process 3 is a tuple space processing request managed by the tuple space communication apparatus of another node, the tuple space communication apparatus 1 manages it. The request message is transmitted to the tuple space communication device 1 of another node via the network 4.

As shown in FIG. 1, when the tuple space communication monitoring device 5 is arranged between the application process 3 and the tuple space communication device 1, the application process 3 and the tuple space communication device 1 are connected via the network 4. There are the following four types of messages transmitted and received to and from.

(1) A message transmitted from the application process 3 to the tuple space communication device 1. (2) A message transmitted from the tuple space communication device 1 to the application process 3. (3) Tuple space communication device 1-1 of local node
Message transmitted from the same to the tuple space communication device 1-2 or 1-n of another node via the network 4. (4) A message transmitted from the tuple space communication device 1-2 or 1-n of another node to the tuple space communication device 1-1 of the local node.

Further, as typical request messages transmitted and received between the tuple space communication device 1 and the tuple space communication monitoring device 5, there are the following four types of request messages (5) to (8). (5) Tuple space creation request message: APID
NEW SNAME, where APID is the ID (Identification) of the requesting application,
NEW is a tuple space creation instruction, and SNAME is a tuple space name to be created.

(6) Tuple input request message: AP
ID PUT SID DATA1 DATA2 DAT
A3. . . , Where PUT is the tuple input instruction, SI
D is the tuple space ID, and DATA is the input data. (7) Tuple retrieval request message: APID G
ET SID DATA1 DATA2 DATA
3. . . , Where GET is a tuple extraction instruction. (8) Tuple space deletion request message: APID
DEL SID, where DEL is the tuple space delete command.

As described above, in the tuple space communication monitoring device 5 of the first embodiment, the tuple space communication monitoring device 5 is used.
Records the operation information for the tuple space in the message transmitted and received between the tuple space communication device 1 and the application process 3 so that the access pattern to the tuple space for each process can be easily grasped even after the process ends. It improves the reliability of the communication system.

Next, the operation will be described. FIG. 2 shows FIG.
The tuple space communication monitoring device 5 according to the first embodiment shown in FIG.
3 is a flowchart showing the processing flow of FIG. First, the tuple space communication monitoring device 5 is operated by an operator or the like.
Is started, or when the tuple space communication monitoring device 5 is automatically started when a predetermined condition is satisfied (step ST101), the message decoding means 6 in the tuple space communication monitoring device 5 sends a message. Whether or not the received message is a request message including an instruction to operate the tuple space 2 in the tuple space communication device 1 (step ST102) (for example, the four types of instructions APID NE described above in the request message).
W, APID PUT, APID GET, APID
It is determined whether or not EL is included (step ST
103).

In step ST103, when the received message is a request message including an instruction to operate the tuple space 2 in the tuple space communication device 1 (True in step ST103), this message is, for example, stored in the program. It is temporarily stored by substituting it into a certain variable (step ST104).

On the other hand, in step ST103, when the received message is not the request message including the instruction to operate the tuple space 2, (step ST103).
False) in step ST105,
It is determined whether the received message is a result message (step ST105).

When it is determined in step ST105 that the received message is a result message (True in step ST105), in the next step ST106, whether the received message is a message for the tuple space of the local node,
Alternatively, it is determined whether the message is for a tuple space in another node (step ST106).

When it is determined in step ST106 that the received message is a message for accessing the tuple space of the local node (True in step ST106), it is temporarily assigned, for example, by substituting it into a certain variable in the program. The operation contents are read from the saved request message and the operation results are received from the received result message, and the tuple space operation recording means 7 reads the contents of the operation contents from the tuple space operation recording file 8.
To (ST107). After that, the saved request message is no longer necessary because it is stored in the tuple space operation recording file 8 and is deleted (step ST108).

When the request message received from the application process is to another node, the tuple space communication device 1 transmits the request message to the tuple space communication device 1 of the corresponding node via the network 4. To do. The request message and the result message are transmitted and received not only between the application process 3 and the tuple space communication device 1, but also between the tuple space communication device 1 in a different node. When the tuple space communication monitoring device 5 receives the result message, it is possible to determine whether or not the result message is a message for the tuple space 2 in the local node by checking the source and destination of the message. .

Regarding the received result message, it is judged that the message is for the tuple space of the local node only when the following (11) to (13) are satisfied. (11) When the result message is transmitted from the tuple space communication device 1 of the local node to the tuple space communication device 1 of another node ((3) above)
Or (12) the result message transmitted from the tuple space communication device 1 of the local node to the application process 3 of the local node ((2) above).
And (13) it is determined that the stored request message is transmitted from the application process 3 of the local node to the tuple space communication device 1 of the local node (in the case of (1) above). Applicable to the case).

FIG. 3 is an explanatory diagram showing the contents of the message stored in the tuple space operation recording file 8. The tuple space operation recording means 7 outputs the time (time 1, time 2, etc.) at the time of output, the ID (ID 1, ID 2, etc.) of the application that requested the operation, the operation content (creation, input, removal, deletion, etc.). , And operation results (result 1, result 2, etc.) are output.

As described above, according to the first embodiment, the tuple space communication monitoring device 5 transmits and receives between the tuple space communication device 1 and the application process 3 and between the tuple space communication devices 1 at different nodes. Since the operation information for the tuple space 2 stored in the message to be recorded is recorded in the tuple space operation recording file 8, the operator can specify the access pattern to the tuple space 2 for each process even after the process ends. It can be easily grasped and the reliability of the communication system can be improved.

Embodiment 2 FIG. 4 is a block diagram mainly showing a tuple space communication monitoring apparatus according to Embodiment 2 of the present invention.
˜50-n are tuple space communication monitoring devices (hereinafter collectively referred to as 50 if there is no particular need to distinguish them), 9-1,
9-2 to 9-n store tuples stored in the tuple space 2 in the tuple space communication device 1.
Tuple storage means provided in the tuple space communication monitoring device 50 (hereinafter collectively referred to as 9 unless otherwise required to be distinguished) 10-1, 10-2 to 10-n are stored in the tuple storage means 9. Tuple display means for displaying the generated tuples to the operator (hereinafter collectively referred to as "10" if there is no particular need for distinction). The same parts as those in the first embodiment shown in FIG. 1 are designated by the same reference numerals and their duplicate description will be omitted.

As described above, in the tuple space communication monitoring device 50 of the second embodiment, the tuple storage means 9 stores the tuples in the tuple space 2 managed by the tuple space communication device 1, and relates to the stored tuples. The information is displayed to the operator via the tuple display means 10 so that the operator can easily grasp the situation regarding the tuple in the tuple space 2.

Next, the operation will be described. FIG. 5 is a flowchart showing a processing flow of the tuple space communication monitoring device 50 according to the second embodiment. First, when the tuple space communication monitoring device 50 is activated by an operation of an operator or the tuple space communication monitoring device 50 is automatically activated when a predetermined condition is satisfied (step ST201), the tuple space communication device 50 is activated. The message decoding means 6 in the communication monitoring device 50 determines whether or not the received message is a message for the tuple space 2-1 of the local node, and if the message is a message for the tuple space 2-1 of the local node, this message To the tuple storage means 9. Tuple storage means 9
Receives the message transmitted from the message decoding means 6 (step ST202).

Step ST103 shown in the first embodiment
Similar to the processing in (1), the tuple storage unit 9 determines whether the received message is a message for creating a tuple space (step ST203). As a result of the determination, when the received message is a tuple space creation message (True in step ST203), it is newly added to the tuple space column of the tuple storage table 11 managed in the tuple storage means 9 (step ST20).
4). In addition, addition of tuple to tuple space 2,
The tuple space communication device 1 performs processing related to deletion, update, and the like. Details of the structure of the tuple storage table 11 in the tuple storage means 9 will be described later with reference to FIG.

When it is determined in step ST203 that the received message is not a tuple space creation message (False in step ST203), it is determined whether this received message is a tuple space deletion message (step ST205). As a result of the judgment,
If the received message is a tuple space deletion message (True in step ST205), the tuple space is deleted from the tuple space column in the tuple storage table 11 (step ST206).

If it is determined in step ST205 that the received message is not a tuple space deletion message (False in step ST205), then it is determined whether or not this received message is a tuple insertion message (step ST207). When the received message is the tuple input message as a result of the determination (True in step ST207), the tuple space in the tuple storage table 11 is searched and the content of the tuple is added (step ST208).

If it is determined in step ST207 that the received message is not a tuple insertion message (False in step ST207), then it is determined whether or not this received message is a tuple extraction message (step ST209). As a result of the judgment, if this received message is a tuple extraction message (step ST
209), the designated tuple space stored in the tuple storage table 11 is searched, and the corresponding tuple is deleted (step ST210).

When the tuple storage table 11 is updated,
The contents of the tuple storage table 11 are displayed to the operator via the tuple display means 10 (step ST21).
1).

FIG. 6 is an explanatory diagram showing the tuple storage table 11 in the tuple storage means 9, in which the tuple storage means 9 in the tuple space communication monitoring device 50 of each node is the tuple space in the same node. Only the tuple space 2 managed by the communication device 1 is managed. When the tuple space is created, the tuple space name or ID is stored in the tuple storage table 11.
When tuple loading / unloading operations are performed on this tuple space, the tuple storage unit 9 stores and deletes the corresponding tuple. When the input tuple is stored in the tuple storage table 11 by the tuple storage means 9, the ID of the input source, the type of the input tuple, the structure information of the tuple, and the like are used as optional information in the actual tuple data. Add and store.

As described above, according to the second embodiment, the tuple storage means 9 in the tuple space communication monitoring device 50 stores information on tuples in the tuple space 2 managed by the tuple space communication device 1. Tuple storage table 1
Since it is stored in the tuple 1 and is displayed to the operator via the tuple display means 10, the operator can easily grasp the information about the tuple in the tuple space 2 and improve the reliability of the communication system.

Embodiment 3 FIG. 7 is a block diagram mainly showing a tuple space communication monitoring apparatus according to the third embodiment of the present invention. In the figure, 60-1, 60-2 are shown.
˜60-n is a tuple space communication monitoring device (hereinafter collectively referred to as 60 unless otherwise specified), 12-
1, 12-2 to 12-n accept operator tuple reference requests from the operator operating the tuple space communication monitoring device 60 and display the reference result to the operator (hereinafter, particularly, operator target input / output means). If it is not necessary to distinguish them, they are collectively referred to as 12), 13-1, 13-2 to 1
3-n is a tuple reference unit (hereinafter, referred to as tuple reference)
If there is no particular need to distinguish them, they are collectively referred to as 13), 14
-1, 14-2 to 14-n are monitoring devices for issuing a tuple reference request to the tuple space communication monitoring device 60 of another node and accepting a tuple reference request from the tuple space communication monitoring device 60 of another node. It is an inter-communication means (hereinafter, generically referred to as 14 if there is no need to distinguish them).

The same parts as those of the first and second embodiments shown in FIGS. 1 and 4 are designated by the same reference numerals and their duplicate description will be omitted.

As described above, the tuple space communication monitoring device 60 of the third embodiment receives a tuple reference request from the operator and refers to the tuple stored in the tuple space 2 designated by the reference request. Moreover, since the reference request is transmitted to the tuple space communication monitoring device 60 of another node and the reference request transmitted from the tuple space communication monitoring device 60 of another node is accepted, the operator can select any Tuple space 2 at the time
Information on all tuples existing in the tuple can be obtained, and it is possible to confirm whether or not the operation of loading and unloading the tuple is correctly performed, and it is possible to easily grasp the information on the tuple in the tuple space.

Next, the operation will be described. FIG. 8 is a flowchart showing a processing flow of the tuple space communication monitoring device 60 according to the third embodiment. First, when the tuple space communication monitoring device 60 is activated by an operation of an operator or when the tuple space communication monitoring device 60 is automatically activated when a predetermined condition is satisfied (step ST301), the operator target The input / output unit 12 receives the tuple reference request from the operator and transmits the request to the tuple reference unit 13.

On the other hand, the inter-monitoring device communication means 14 similarly
When the tuple reference request transmitted from the tuple space communication monitoring device 60 of another node is received, the tuple reference request is transmitted to the tuple reference means 13.

The tuple reference means 13 receives the tuple reference request transmitted from the operator target input / output means 12 or the inter-monitoring device communication means 14 (step ST3).
02), the tuple reference request is the inter-monitoring device communication means 14
It is determined whether the tuple space communication monitoring apparatus 60 of another node received via the operator or the tuple reference request from the operator transmitted via the operator target input / output unit 12 (step ST303). ).

If the received tuple reference request is transmitted from the tuple space communication monitoring device 60 of another node (in the case of True in step ST303),
The corresponding tuple space is searched from the tuple space information stored in the tuple storage table 11 of the tuple storage means 9 (step ST304), and all the data in the tuple space are referred to as the tuple space of the request source. Reply to the communication monitoring device 60 (step S
T305).

The procedure for returning the reference result obtained by the search in another node to the local tuple space communication monitoring device 60, which is the request source, is as follows. First, the tuple reference unit 13 of the local node obtains tuple data from the tuple storage unit 9. Next, the tuple data obtained is passed to the inter-monitoring device communication means 14 of the local node. Then, the inter-monitoring device communication means 14 of the local node transmits the obtained tuple data to the requesting inter-monitoring device communication means 14. The inter-monitoring device communication means 14 of the request source passes the tuple data to the operator target input / output means 12 of the node to which the request belongs, and the operator target input / output means 12 displays the tuple data to the operator.

If the tuple reference request is transmitted from the operator target input / output means 12 (step ST3)
In the case of False in 03), the node in which the corresponding tuple space is stored is searched (step ST30).
6). As a means for realizing this search, for example, a database (DB) storing the position information of the tuple space is newly created, and this can be searched for.

If the corresponding tuple space is the tuple space of the local node, the requested data is referenced from the storage table 11 in the tuple storage means 9 in the same node (step ST307), and the operator target input / output means 1
The reference result is displayed to the operator via 2 (step ST308).

On the other hand, when it is found that the requested tuple space exists in another node, for example, when it is found by searching the database (DB) storing the position information of the tuple space, the inter-monitoring device communication means 14 Transmits the request message to the tuple space communication monitoring device 60 on the other nodes (step ST309).

When the retrieval result is returned from the tuple space communication monitoring device 60 of the other node of the transmission destination (step S
T310), and outputs the search result to the operator via the operator target input / output means 12 (step ST).
311).

As described above, according to the third embodiment, in the tuple space communication monitoring device 60, the operator target input / output means 12 receives a tuple reference request from the operator, and the tuple reference means 13 receives this reference request. Refers to the tuple stored in the tuple space specified by the above, and transmits this reference request to the tuple space communication monitoring device 60 of another node via the inter-monitoring device communication means 14, and conversely to the other node. The tuple space communication monitoring device 60 of the reference request transmits the reference request to the monitoring device communication means 14
, So the operator will get information on all tuples present in the tuple space at any time,
It is possible to confirm whether or not the tuple loading and unloading operations have been correctly executed, and it is possible to easily grasp the information regarding the tuples in the tuple space.

[0061]

As described above, according to the invention described in claim 1, the message decoding means receives a message transmitted and received between a plurality of application processes on the network and a plurality of tuple space communication devices, Since the tuple space operation recording means records the message in the tuple space operation recording file and records the operation information for the tuple space, the operator judges whether the message is a message for operating the tuple space. Since the operation record in the tuple space can be grasped even after the process ends, the operation status of the tuple space communication can be easily monitored and dealt with, and the reliability of the communication system can be improved.

According to the second aspect of the present invention, the message decoding means determines whether or not the message is a message for operating the tuple space based on whether or not an instruction for operating the tuple space is included in the message. With this configuration, it is possible to accurately record the operation information for the tuple space in the message sent and received between the tuple space communication device and the application process, and the operator can easily monitor and respond to the operation status of the tuple space communication. effective.

According to the third aspect of the present invention, the tuple storage means stores the tuple space and tuple information of the corresponding operation target based on the information in the message, and the tuple display means is stored in the tuple storage means. Since the information is displayed to the operator, the operator can easily confirm the information of the tuple in the tuple space managed by the tuple space communication device, and the reliability of the communication system can be improved.

According to the fourth aspect of the invention, when the tuple storage means is a message instructing to create a tuple space, a new tuple space is created in the tuple storage means, and the tuple space communication device is provided. Delete the tuple space in the tuple storage means when the message is an instruction to delete the tuple space in
If the message is a message for adding a tuple in the tuple space in the tuple space communication device, the tuple corresponding to the tuple space in the tuple storage means is added,
When the message is a message for deleting a tuple from the tuple space in the tuple space communication device, the corresponding tuple in the tuple space of the tuple storage means is deleted and the tuple information is operated in the tuple storage means. Therefore, the operator can easily grasp the information about the tuples in the tuple space to monitor the operation status of the tuple space communication, and the reliability of the communication system can be improved.

According to the fifth aspect of the invention, the operator target input / output means receives the tuple reference request from the operator and displays the tuple reference result to the operator, and the inter-monitoring device communication means is the node of the tuple space. Sends a tuple reference request to the tuple space communication monitoring device belonging to, or accepts the tuple reference request sent from the tuple space communication monitoring device of another node, and the tuple reference means performs communication between the operator and the monitoring device. Since it is configured to refer to all tuples existing in the tuple space based on the reference request sent from the means, the operator can easily obtain the information of all tuples existing in the tuple space at any time. The tuple space can be checked to see if the tuple loading and unloading operations have been performed correctly. There is an effect capable of improving the reliability of the communication system monitors the operation status of the communication.

According to a sixth aspect of the present invention, there is provided a method of monitoring tuple communication performed by exchanging tuples via a tuple space, and transmitting / receiving between a plurality of application processes on a network and a plurality of tuple space communication devices. Received a message, record the message if the message is to operate a tuple space, and store and display information about the tuple space and tuple to be operated, and a tuple from an operator or another node. If the tuple space is a tuple space belonging to another node,
Since it is configured to send a reference request to another node, reference all tuples existing in the tuple space specified in the reference request, display the reference result, and send the reference result to another node, Even after the end of the process, the operator can easily grasp the tuple space and the operation record of the tuple, easily monitor and respond to the operation status of the tuple space communication, and the reliability of the communication system can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram mainly showing a tuple space communication monitoring device according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing a processing flow of the tuple space communication monitoring apparatus according to the first embodiment shown in FIG.

FIG. 3 is an explanatory diagram showing contents of a message stored in a tuple space operation recording file.

FIG. 4 is a block diagram mainly showing a tuple space communication monitoring device according to a second embodiment of the present invention.

FIG. 5 is a flowchart showing a processing flow of the tuple space communication monitoring apparatus according to the second embodiment shown in FIG.

FIG. 6 is an explanatory diagram showing a tuple storage table in a tuple storage means.

FIG. 7 is a block diagram mainly showing a tuple space communication monitoring device according to a third embodiment of the present invention.

FIG. 8 is a flowchart showing a processing flow of the tuple space communication monitoring apparatus according to the third embodiment shown in FIG.

FIG. 9 is a block diagram showing a conventional tuple space communication device.

FIG. 10 is a detailed block diagram showing the conventional tuple space communication device shown in FIG.

[Explanation of symbols]

5-1, 5-2 to 5-n, 50-1, 50-2 to 50-
n, 60-1, 60-2 to 60-n tuple space communication monitoring device, 6-1, 6-2 to 6-n message decoding means, 7-1, 7-2 to 7-n tuple space operation recording means , 8-1, 8-2 to 8-n tuple space operation recording file, 9-1, 9-2 to 9-n tuple storage means, 10-1, 10-2 to 10-n tuple display means,
12-1, 12-2 to 12-n operator target input / output means, 13-1, 13-2 to 13-n tuple reference means, 14-1, 14-2 to 14-n inter-monitoring device communication means.

Claims (6)

[Claims] 1. A message which is transmitted / received between a plurality of application processes and a plurality of tuple space communication devices on a network, is decrypted, and the message is a message for operating the tuple space. A message decoding means for determining whether or not there is a tuple space operation record for recording the message transmitted from the message decoding means in a tuple space operation record file when the message is a message for operating the tuple space And a means for monitoring tuple space communication performed by exchanging tuples in the tuple space. 2. The message decoding means determines whether or not the message is a message for operating a tuple space, based on whether or not an instruction for operating the tuple space is included in the message. Item 1. A tuple space communication monitoring device according to item 1. 3. The result of the judgment by the message decoding means,
When it is determined that the message is a message for operating a tuple space, a tuple storage unit that stores information about the tuple space to be operated and tuples corresponding to the information in the message, and a tuple storage unit that stores the tuple space. The tuple space communication monitoring device according to claim 1 or 2, further comprising: a tuple display unit that displays the tuple space and the information related to the tuple. 4. The tuple storage means creates a new tuple space in the tuple storage means when the message is a message instructing the creation of a tuple space, and the message is the tuple space in the tuple space communication device. The tuple space in the tuple storage means is deleted, and the tuple is added when the message is a message for adding a tuple in the tuple space in the tuple space communication device. In a tuple space corresponding to the tuple storage means when a tuple space corresponding to the tuple space in the storage means is added and the message is a message for deleting the tuple from the tuple space in the tuple space communication device Claims characterized by deleting the corresponding tuples of Item 3. The tuple space communication monitoring device according to item 3. 5. An operator target input / output means for receiving a tuple reference request from an operator and displaying a tuple reference result for the operator, and a tuple space in which the tuple space designated by the reference request belongs to another node. Is a monitoring device for transmitting the tuple reference request to the tuple space communication monitoring device belonging to the other node, and for accepting the tuple reference request transmitted from the tuple space communication monitoring device of the other node. Inter-communication means, and tuple reference means for receiving the reference request transmitted from the operator or from the inter-monitoring-device communication means, and referring to all tuples existing in the tuple space designated by the reference request. The tuple space communication monitoring device according to claim 3 or 4, which is provided. 6. A message for receiving and transmitting a message transmitted between a plurality of application processes and a plurality of tuple space communication devices on a network, decrypting the received message, and the message is a message for operating the tuple space. It is determined whether or not there is a message, and if the message is a message for operating the tuple space, the message is recorded, and based on the information in the message, the tuple space of the corresponding operation target and information about the tuple are stored. Then, the stored tuple space and information about the tuple are displayed to the operator, the tuple reference request from the operator is accepted, and the tuple reference request sent from another node is accepted, and the tuple reference is performed. The tuple space specified in the request is the other node If it is a tuple space belonging to, the tuple reference request is transmitted to the other node,
Refers to all tuples existing in the tuple space specified by the reference request, displays the tuple reference result to the operator, and transmits the reference result to the other node via the tuple space. A tuple space communication monitoring method for monitoring tuple communication through the exchange of data.