JP5822748B2 - Information processing system and information processing method - Google Patents

Description

  The present invention relates to an information processing system, an information processing method, and a program for acquiring log data of a target session in a distributed processing system including a plurality of processing servers that process a plurality of sessions.

  In order to process a large amount of data, a distributed processing system in which a plurality of computers cooperate and share processing has become widespread. In this distributed processing system, a plurality of computers are connected by a communication network. The distributed processing system distributes a signal input from the external device to the computer of the distributed processing system and returns a response to the external device. The distribution route of this signal is different for each signal. The signal holds information that can specify a communication session with an external device that is the transmission source of the signal. Each computer of the distributed processing system holds information that can identify the computer, and is identified by this information. The information that can specify the communication session is, for example, a session identifier. The information that can identify the computer is, for example, a server identifier.

  In such a distributed processing system, since each computer processes a signal, each computer also shares and holds log data such as processing results. For this reason, it is necessary to collect access logs related to signal distribution in a specific communication session from each computer.

  As this method, for example, there is a method of collecting access logs of each server and generating a common log integrated into one file (for example, see Patent Document 1). In the method described in Patent Document 1, each server periodically transmits an access log to a predetermined server, and a common log is generated. By managing the access logs in a unified manner, the access logs for a predetermined session can be easily collected.

  As another method, there is a method in which each server records an access log in association with a session identifier. In this case, when acquiring an access log with a desired session identifier, it is possible to inquire the presence or absence of a log with a desired session identifier from each server and acquire log data with a desired session identifier from each server.

JP 2001-134544 A

  However, with the method described in Patent Document 1, each server periodically transmits an access log, which may impose a communication service bandwidth in the distributed processing system.

  The method for inquiring a desired session identifier is to collect access logs of a desired session from all access logs of all servers. Therefore, since the access log is searched and collected for each of the servers of the distributed processing system, there is a problem that the system becomes larger and becomes inefficient as the number of servers in the system increases.

  Accordingly, an object of the present invention is to provide an information processing system, an information processing method, and a program that efficiently acquire log data of a target session in a distributed processing system including a plurality of processing servers that process a plurality of sessions. .

In order to solve the above-described problem, a first feature of the present invention relates to an information processing system that acquires log data of a target session in a distributed processing system including a plurality of processing servers that process a plurality of sessions. An information processing system according to a first feature of the present invention includes a plurality of processing servers for processing a plurality of sessions, a session information database server connected to the plurality of processing servers, and a plurality of processing servers and a session information database server. And a log acquisition terminal for acquiring log data of the target session. The processing server stores the session log data processed by the processing server in the access log data in association with the session identifier, and digest log data including the session identifier extracted from the access log data. Digest log transmitting means for transmitting to the session information database server, and log request processing means for outputting log data corresponding to the identifier of the target session from the access log data when the target session identifier is input. When the session information database server receives the digest log data,
It is determined whether or not the session identifier of the digest log data is included in the session information data. If the session identifier is not included in the session information data, the session identifier of the session information data is set as a new key. In this record, a correspondence list in which the identifier of the processing server that processed the session is set is set. If the session identifier is included in the session information data, the session identifier of the session information data is set. When the digest log receiving means for setting the identifier of the processing server that processed the session and the identifier of the target session are input to the correspondence list of the record set as the key, the identifier of the target session is obtained from the session information data. Mapping Extracting the identifier of the processing servers and a session information request processing means for outputting. The log acquisition terminal acquires, from the session information database server, session information requesting means for acquiring the identifier of the processing server that processed the target session, and log data corresponding to the identifier of the target session from the processing server that processed the target session. Log generating means for generating session log data of the target session.

  Here, in the processing server, the digest log transmission unit generates the digest log data by associating the session identifier extracted from the access log data with the log identifier for identifying the log data of the session in the access log data. In the session information database server, the digest log receiving means further associates the log identifier with each other and stores it in the session information data. The session information request processing means receives the session information identifier when the session information identifier is input. The processing server identifier associated with the identifier of the target session and the log identifier may be extracted from the data and output. In this case, in the log acquisition terminal, the session information requesting unit acquires the identifier of the processing server that processed the target session and the identifier of the log from the session information database server, and the log generation unit receives the processing server that processed the target session. The log data corresponding to the identifier of the target session and the identifier of the log is acquired from the processing server, and session log data of the target session is generated.

A second feature of the present invention relates to an information processing method used in an information processing system that acquires log data of a target session in a distributed processing system including a plurality of processing servers that process a plurality of sessions. Here, the information processing system connects a plurality of processing servers that process a plurality of sessions, a session information database server that connects to the plurality of processing servers, a plurality of processing servers and a session information database server, and log data of the target session. A log acquisition terminal for acquiring. The information processing method according to the second aspect of the present invention includes a step in which a processing server stores log data of a session processed by the processing server in access log data in association with an identifier of the session; A step of transmitting digest log data including the session identifier extracted from the access log data to the session information database server; and when the session information database server receives the digest log data, the session of the digest log data is included in the session information data. It is determined whether or not the identifier is included, and if the session identifier is not included in the session information data, a record that sets the session identifier of the session information data as a new key is added, and the record Set If the correspondence list is set with the identifier of the processing server that processed the session, and the session identifier is included in the session information data, the correspondence list of the record set using the session identifier of the session information data as a key A step of setting an identifier of a processing server that has processed the session, a step of a log acquisition terminal inputting an identifier of the target session to the session information database server, and a session information database server A step of extracting and outputting the identifier of the processing server associated with the identifier of the session, a step of acquiring the identifier of the processing server that has processed the target session from the session information database server, and a log acquisition terminal But the target cell A step of inputting an identifier of the target session to the processing server that has processed the session, and a step of outputting log data corresponding to the identifier of the target session from the access log data when the processing server inputs the identifier of the target session The log acquisition terminal includes a step of acquiring log data corresponding to the identifier of the target session from the processing server that has processed the target session, and generating session log data of the target session.

A third feature of the present invention relates to an information processing method used in an information processing system that acquires log data of a target session in a distributed processing system including a plurality of processing servers that process a plurality of sessions. Here, the information processing system connects a plurality of processing servers that process a plurality of sessions, a session information database server that connects to the plurality of processing servers, a plurality of processing servers and a session information database server, and log data of the target session. A log acquisition terminal for acquiring. An information processing method according to a third aspect of the present invention includes a step in which a processing server stores log data of a session processed by the processing server in access log data in association with a session identifier and the log identifier. The processing server sends digest log data including the session identifier and log identifier extracted from the access log data to the session information database server; and when the session information database server receives the digest log data, the session information Determine whether the session identifier of the digest log data is included in the data,
When the session identifier is not included in the session information data, a record that sets the session identifier of the session information data as a new key is added, and the identifier of the processing server that processed the session and the identifier of the log are added to this record If the session identifier is included in the session information data, and the session identifier is included in the session information data, the processing server that has processed the session in the record correspondence list set using the session identifier of the session information data as a key a step of setting an identifier and log identifier, log acquisition terminal, the session information database server, a step of inputting an identifier of the target session, the session information database server, the session information data, of the target session identifier A step of extracting and outputting the identifier of the associated processing server and the identifier of the log; and a step of acquiring the identifier of the processing server and the log by which the log acquisition terminal has processed the target session from the session information database server; A step in which the log acquisition terminal inputs the identifier of the target session and the identifier of the log to the processing server that has processed the target session; and when the processing server inputs the identifier of the target session and the identifier of the log, the access log data Outputting log data corresponding to the identifier of the target session and the identifier of the log from the processing server that has processed the target session, and the log acquisition terminal outputs log data corresponding to the identifier of the target session and the log identifier. To get the target session Comprising the step of generating a Deployment log data.

A fifth feature of the present invention relates to a program for a session information database server used in an information processing system for acquiring log data of a target session in a distributed processing system including a plurality of processing servers for processing a plurality of sessions. Here, the session information database server is a computer connected to a plurality of processing servers and a log acquisition terminal that acquires log data of the target session. When the program according to the fifth feature receives digest log data including an identifier of a session processed by the processing server from the processing server, the program includes the session identifier of the digest log data in the session information data. If the session identifier is not included in the session information data, a record that sets the session identifier of the session information data as a new key is added, and the process that processed the session is added to this record When a correspondence list in which server identifiers are set is set, and the session identifier is included in the session information data, the session is processed in the correspondence list of the record set with the session identifier in the session information data as a key. Processing server Digest log receiving means for setting an identifier, from log acquisition terminal, the identifier of the target session is inputted, from the session information data, and outputs the extracted identifier of the processing server associated with the identifier of the target session It functions as a session information request processing means.

  According to the present invention, it is possible to provide an information processing system, an information processing method, and a program that efficiently acquire log data of a target session in a distributed processing system including a plurality of processing servers that process a plurality of sessions.

It is a figure explaining the system configuration | structure of the information processing system which concerns on embodiment of this invention. It is a sequence diagram explaining the information processing method which concerns on embodiment of this invention. It is a figure explaining the hardware constitutions and functional block of a processing server, a session information database server, and a log acquisition terminal which concern on embodiment of this invention. It is a figure explaining an example of a data structure and data of access log data concerning an embodiment of the invention. It is a figure explaining an example of the data structure and data of digest log data concerning an embodiment of the invention. It is a figure explaining an example of a data structure and data of session information data concerning an embodiment of the invention. It is a sequence diagram explaining the information processing method concerning a modification. It is a figure explaining an example of the data structure and data of digest log data concerning a modification. It is a figure explaining an example of a data structure and data of session information data concerning a modification.

  Next, embodiments of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals.

(Information processing system)
An information processing system 10 according to an embodiment of the present invention will be described with reference to FIG. The information processing system 10 includes a distributed processing system 6 and external terminals 7a, 7b, and 7c. Here, when the external terminals 7a, 7b and 7c are not particularly distinguished, they may be simply referred to as the external terminal 7.

  The distributed processing system 6 and the external terminal 7 are connected via an external network 8 so that they can communicate with each other. The external network 8 is, for example, the Internet. The external terminal 7 is a terminal used by a user, and is an information device such as a smartphone, a notebook computer, or a personal computer. The external terminal 7 requests the distributed processing system 6 to process data via the external network 8 and receives the processing result as a response. In data transmission / reception between the external terminal 7 and the distributed processing system 6, a session identifier is assigned.

  The distributed processing system 6 includes a first processing server 1a, a second processing server 1b, a third processing server 1c, a fourth processing server 1d, a session information database server 2, a log acquisition terminal 3, and a reception server 4. . Here, when the first processing server 1a, the second processing server 1b, the third processing server 1c, and the fourth processing server 1d are not particularly distinguished, they may be simply referred to as the processing server 1. The processing server 1, the session information database server 2, the log acquisition terminal 3, and the reception server 4 are connected by an internal network 5 so that they can communicate with each other. The internal network 5 is, for example, an in-house LAN.

  The first processing server 1a, the second processing server 1b, the third processing server 1c, and the fourth processing server 1d share and process data transmitted from the external terminal 7 in cooperation with each other. The processing server 1 grasps a series of processes between the external terminal 7 and the processing server 1 based on the session identifier given to the request from the external terminal 7 and processes the data. The processing server 1 generates access log data 111 for the processing of the external terminal 7, transmits digest log data 112 from the access log data 111, and transmits it to the session information database server 2. The digest log data 112 includes an identifier of the processing server 1, a session identifier processed by the processing server 1, and a log identifier for specifying log data of the processing. This log identifier is, for example, a line number in the access log data 111.

  The receiving server 4 receives a request from the external terminal 7 and causes any one of the first processing server 1a, the second processing server 1b, the third processing server 1c, and the fourth processing server 1d to process the request. To decide. The reception server 4 transmits a request from the external terminal 7 to the determined processing server 1.

  The session information database server 2 stores the digest log data received from the processing server 1 in the session information data 211.

  The log acquisition terminal 3 is a terminal used by an administrator of the distributed processing system 6, for example, and acquires log data of a desired session from the processing server 1. At this time, the log acquisition terminal 3 acquires from the session information database server 2 the identifier of the processing server 1 that has processed the desired session, and the identifier of the log for identifying the log data for the processing in this processing server 1. Furthermore, the log acquisition terminal 3 acquires log data related to the desired session from the processing server that has processed the desired session.

  In the example illustrated in FIG. 1, a case where the reception server 4 and the processing server 1 are realized on different hardware will be described, but the present invention is not limited thereto. For example, the function of the reception server 4 may be implemented on the processing server 1. In the example illustrated in FIG. 1, a case where the log acquisition terminal 3 is an independent computer will be described, but the present invention is not limited thereto. Each function of the log acquisition terminal 3 may be realized in, for example, the session information database server 2 or may be realized in another computer.

(Information processing method)
With reference to FIG. 2, the information processing method according to the embodiment of the present invention will be described. FIG. 2 illustrates a process for the log acquisition terminal 3 to collect log data processed by the processing server 1.

  First, in step S1, the first processing server 1a processes data based on a request from the external terminal 7. At this time, the first processing server 1a generates the access log data 111 by associating the processing result with the session identifier. Further, in step S2, the first processing server 1a generates digest log data 112 from the access log data 111, and periodically transmits it to the session information database server 2 in step S3. The digest log data 112 includes the session identifier of the session processed by the first processing server 1a, the identifier of the first processing server 1a, and the line number. When receiving the digest log data 112 from the first processing server 1a, the session information database server 2 stores it in the session information data 211 in step S4. At this time, the session information database server 2 stores the session identifier of the digest log data 112 in association with the identifier and line number of the processing server 1 that has processed this session.

  Similarly to the first processing server 1a, the second processing server 1b also executes the processing from step S5 to step S7. Here, the digest log data 112 transmitted by the second processing server 1b includes the session identifier of the session processed by the second processing server 1b, the identifier of the second processing server 1b, and the line number.

  It is preferable that the process of step S1 and step S5 is performed whenever the process server 1 processes a session. Moreover, the process of step S2 thru | or S4 and the process of step S6 thru | or S8 may be performed with a frequency lower than the frequency with which the processing server 1 processes a session. These processes are executed periodically, for example. In the example shown in FIG. 2, only the first processing server 1 a and the second processing server 1 b are described, but the same applies to the other processing servers 1.

  A case where the log acquisition terminal 3 acquires a log related to an acquisition target session will be described. In step S <b> 9, the log acquisition terminal 3 inputs the acquisition target session identifier and the session information database server 2. In step S <b> 9, the session information database server 2 transmits to the log acquisition terminal 3 the combination of the identifier and the line number of the processing server 1 associated with the input identifier of the target session.

  Here, consider a case where the target session is processed by the first processing server 1a and the second processing server 1b. The log acquisition terminal 3 receives combinations of identifiers and line numbers of the two types of processing servers 1. The first is a combination of the identifier of the first processing server 1a and the line number of the log data of the target session in the first processing server 1a. The second is a combination of the identifier of the second processing server 1b and the line number of the log data of the target session in the second processing server 1b. Here, when the first processing server 1a processes the target session a plurality of times, the log acquisition terminal 3 receives a row number corresponding to the number of times the target session has been processed.

  When the log acquisition terminal 3 receives the information of the processing server 1 that stores the log data of the target session from the session information database server 2, the log acquisition terminal 3 acquires the log data of the target session from the processing server 1 that stores the log data of the target session. .

  In the example illustrated in FIG. 2, in step S11, the log acquisition terminal 3 causes the first processing server 1a to specify the session identifier of the target session, and the line number for specifying the log data of the target session in the first processing server 1a. Enter. A plurality of line numbers may be input here. The first processing server 1a acquires the log data of the target session from the access log data 111 in step S12 based on the session identifier and the line number received in step S11, and transmits the log data to the log acquisition terminal 3 in step S13.

  Similarly, in step S14, the log acquisition terminal 3 inputs the session identifier of the target session and the line number for specifying the log data of the target session in the second processing server 1b to the second processing server 1b. A plurality of line numbers may be input here. The second processing server 1b acquires the log data of the target session from the access log data 111 in step S14 based on the session identifier and the line number received in step S14, and transmits the log data to the log acquisition terminal 3 in step S16.

  When the log data of the target session is acquired from the processing server 1, the log acquisition terminal 3 generates session log data 313 indicating a series of processes in the target session in step S17. For example, the log acquisition terminal 3 can generate the session log data 313 of the target session by sorting and merging the log data acquired in step S13 and step S16 in the order of access date and time.

(Processing server)
The processing server 1 will be described with reference to FIG. As shown in FIG. 3, the processing server 1 is a general computer including a storage device 110, a central processing control device 120, and a communication control device 130. The functions shown in FIG. 3 are implemented in the processing server 1 by installing and executing a program for executing predetermined processing in a general computer. The communication control device 130 is an interface for connecting the processing server 1 to the internal network 5.

  The storage device 110 stores access log data 111 and digest log data 112. The central processing control device 120 includes a session processing unit 121, a digest log generation unit 122, a digest log transmission unit 123, and a log request processing unit 124.

  The session processing unit 121 stores the log data of the session processed by the processing server 1 in the access log data 111 in association with the session identifier. The session processing unit 121 stores the log data in the access log data 111 each time a session is processed. Items to be stored in the access log data 111 are set as appropriate. In the embodiment of the present invention, an identifier for identifying log data in the access log data 111 such as a session identifier and a line number is included.

  The access log data 111 is a set of log data 111a, 111b,... Relating to session processing of the processing server 1. Each of the log data 111a, 111b,... Of the access log data 111 includes items such as a line number, a session identifier, an access date / time, a time stamp, and a transmission source IP address as shown in FIG. Here, the line number is an identifier for identifying each log data in the access log data 111. Each processing server 1 of the distributed processing system 6 stores access log data 111 for log data of a session processed by itself.

  The digest log generating unit 122 associates the session identifier extracted from the access log data 111 with the log identifier for identifying the log data of the session in the access log data 111, and generates the digest log data 112. Here, the log identifier only needs to be able to identify the log data in the access log data 111, and is, for example, the line number of the access log data 111.

  As shown in FIG. 5, the digest log data 112 is data in which a session identifier and a line number are associated with each other. In the example shown in FIG. 5, the digest log data 112 further associates with the identifier of the processing server that stores the digest log data 112. Here, the digest log data 112 may or may not include the identifier of the processing server. If the digest log data 112 does not include the identifier of the processing server, the session information database server 2 may store the digest log data in association with the identifier of the processing server that transmitted the digest log data.

  The digest log generation unit 122 may write the session identifier and the line number of the access log data in the digest log data 112 every time a session is processed, or may write it periodically. The digest log generating unit 122 may generate the digest log data 112 by the time the digest log transmitting unit 123 transmits the digest log data 112.

  The digest log transmission unit 123 transmits the digest log data 112 generated by the digest log generation unit 122 to the session information database server 2. The digest log transmission means 123 transmits the digest log data 112 to the session information database server 2 periodically, for example. The digest log transmission unit 123 deletes the digest log data 112 when the transmission to the session information database server 2 is completed. The digest log transmission unit 123 transmits the data newly written by the digest log generation unit 122 to the session information database server 2 after transmitting the previous digest log data 112.

  When the target session identifier and the log identifier are input from the log acquisition terminal 3, the log request processing unit 124 outputs log data corresponding to the target session identifier and the log identifier from the access log data 111.

  For example, the log acquisition terminal 3 inputs a log data acquisition request including sessionID = 4 and lineNo = 152 to the processing server 1. The processing server 1 acquires log data matching the request from the access log data 111 and inputs it to the log acquisition terminal 3. In the example illustrated in FIG. 4, the log data 111 b is acquired from the access log data 111 and returned to the log acquisition terminal 3.

(Session information database server)
The session information database server 2 will be described with reference to FIG. As shown in FIG. 3, the session information database server 2 is a general computer including a storage device 210, a central processing control device 220, and a communication control device 230. Each function shown in FIG. 3 is implemented in the session information database server 2 by installing and executing a program for executing a predetermined process in a general computer. The communication control device 230 is an interface for connecting the session information database server 2 to the internal network 5.

  The storage device 210 stores session information data 211 and session storage server data 212. The central processing control device 220 includes a digest log receiving unit 221 and a session information request processing unit 222.

  The digest log receiving unit 221 receives digest log data from the processing server 1. The digest log receiving unit 221 stores the session identifier, the log identifier, and the identifier of the processing server that has processed the session in the session information data 211 in association with each other in the digest log data.

  At this time, upon receiving the digest log data, the digest log receiving unit 221 may generate session information data 211 using the identifier of the session processed by the processing server 1 as a key. The digest log receiving unit 221 generates session information data 211 by associating the identifier of the processing server with a list of combinations of log identifiers of the session in the processing server, using the session identifier as a key.

  Specifically, the session information data 211 is data as shown in FIG. In the example illustrated in FIG. 6, the session information data 211 uses the session identifier “1” as a key, the line number “84th line” of the server identifier “15”, and the line number “152nd line” of the server identifier “9”. Are associated with the line number “92nd line” of the server identifier “28”. As a result, the server identifier that has processed the target session from the log acquisition terminal 3 and the correspondence list of the log line numbers can be easily returned.

  When generating the session information data 211 from the newly received digest log data, the digest log receiving unit 221 determines whether the session information data 211 includes the session identifier of the received digest log data. If a session identifier has already been set in the session information data 211, the digest log receiving means 221 associates the identifier of the newly received digest log processing server with the row number at the end of the session identifier correspondence list. Then add. On the other hand, when the session identifier is not set in the session information data 211, the digest log receiving unit 221 newly adds a record for setting the session identifier as a key. The digest log receiving unit 221 sets the identifier of the newly received digest log processing server and the line number in association with this record.

  When the identifier of the target session is input from the log acquisition terminal 3, the session information request processing unit 222 extracts the processing server identifier and the log identifier associated with the target session identifier from the session information data 211. Output.

  In the example shown in FIG. 6, when the target session identifier “1” is input from the log acquisition terminal 3, the session information request processing means 222 is associated with the session identifier “1” from the session information data 211. Extract the list of server identifiers and line numbers. Here, from the session information data 211, the combination of the server identifier “15” and the line number “84th line”, the combination of the server identifier “9” and the line number “152nd line”, the server identifier “28” and the line number. “92nd line” and... Are extracted. The session information request processing means 222 stores the combination of the extracted server identifier and line number in the storage device 210 as session storage server data 212. The session information request processing means 222 reads the session storage server data 212 from the storage device 210 and transmits it to the log acquisition terminal 3.

(Log acquisition terminal)
The log acquisition terminal 3 will be described with reference to FIG. As illustrated in FIG. 3, the log acquisition terminal 3 is a general computer including a storage device 310, a central processing control device 320, and a communication control device 330. Each function shown in FIG. 3 is implemented in the log acquisition terminal 3 by installing and executing a program for executing a predetermined process in a general computer. The communication control device 330 is an interface for connecting the log acquisition terminal 3 to the internal network 5.

  The storage device 310 stores session storage server data 311, log data 312 a, 312 b, 312 c... And session log data 313. The central processing control device 320 includes a session information request unit 321 and a log generation unit 322.

  The session information requesting unit 321 inputs the identifier of the target session for acquiring the log to the session information database server 2. The session information request unit 321 acquires the identifier of the processing server that processed the target session and the identifier of the log from the session information database server 2 and stores them in the session storage server data 311.

  For example, in the example shown in FIG. 6, a case where the identifier of the target session is “1” will be described. The session information requesting unit 321 receives a combination of the server identifier “15” and the line number “84th line” from the session information database server 2, a combination of the server identifier “9” and the line number “152nd line”, and the server identifier “28”. ”And the line number“ 92nd line ”and. The session information request unit 321 stores the acquired information as session storage server data 311.

  The log generation unit 322 reads the session storage server data 311 from the storage device 310, acquires log data 312a, 312b, 312c... Corresponding to the identifier of the target session from the processing server that has processed the target session. To remember. Further, the log generation unit 322 generates session log data 313 of the target session from the acquired log data.

  Since the session storage server data 311 includes a combination of the server identifier “15” and the line number “84th line”, the log generation unit 322 sends the line number “84th line” to the server with the server identifier “15”. Request log data. When the log data of the line number “84th line” is received from the server with the server identifier “15”, it is stored in the storage device 310. The log generation unit 322 repeats the process of acquiring the log data 312a, 312b, 312c,... For each combination of the server identifier and the row number stored in the session storage server data 311.

  When the log data 312a, 312b, 312c... Is acquired for each combination, the log generation unit 322 generates session log data 313 from the acquired log data 312a, 312b, 312c. The session log data 313 is a set of log data related to the target session. The log generation unit 322 generates session log data 313 by, for example, sorting and merging log data in order of access date and time.

  In this way, in the information processing method according to the embodiment of the present invention, the session information database server 2 centrally manages the session identifier of the access log and the identifier of the session log held by the processing server 1. Thereby, the log acquisition terminal 3 acquires the identifier of the server storing the target session and the identifier of the log from the session information database server 2, and acquires log data from the processing server 1 based on the acquired information. Can do.

  According to this method, since only the digest log is transmitted from the processing server 1 to the session information database server 2, the occupation of the bandwidth in the distributed processing system 6 is avoided as compared with the case where all of the access log data 111 is transmitted. can do. Further, since the log acquisition terminal 3 requests log data only to the processing server 1 that holds the log of the target session, the processing load is reduced and the log is efficiently compared with the case of requesting to all the processing servers 1. Can be acquired.

(Modification)
A modification of the present invention will be described with reference to FIGS. The information processing method according to the embodiment of the present invention illustrated in FIGS. 1 to 6 has been described with reference to the case where the log identifier is transmitted together with the identifier of the server that has processed the target session. The case of transmitting only will be described.

  With reference to FIG. 7, an information processing method according to a modification of the present invention will be described. Steps S51 to S67 in FIG. 7 correspond to steps S1 to S17 in FIG. 1, and the processing contents differ in some steps.

  Specifically, in step S53, the data of the digest log data transmitted from the first processing server 1a to the session information database server 2 is different. In the modification, the first processing server 1a transmits only the identifier of the session processed by the first processing server 1a to the session information database server 2.

  The digest log data 112a according to the modification is, for example, data illustrated in FIG. As shown in FIG. 8, the digest log data 112a includes only the identifier of the session processed by the processing server 1.

  In step S54, the session information database server 2 associates the identifier of the session received from the first processing server 1a with the identifier of the first processing server 1a and stores it in the session information data 211a.

  Here, as in the embodiment of the present invention, the first processing server 1a may include the server identifier of the first processing server 1a in the digest log data 112a. When the digest log data 112a does not include the server identifier of the first processing server 1a, when the digest information is received, the session information data 211a is associated with the identifier of the transmission processing server and is stored in the session information data 211a. Remember.

  The same applies to step S57 and step S58.

  When the log acquisition terminal 3 acquires log data, the log acquisition terminal 3 inputs the identifier of the target session to the session information database server 2 in step S59.

  The session information data 211 according to the modification is, for example, data illustrated in FIG. As shown in FIG. 9, the session information data 211 associates a session identifier with a list of server identifiers that have processed this session. For example, it is indicated that the session with the session identifier “1” is processed by each processing server with the server identifiers “15”, “9”, “28”.

  The session information database server 2a extracts a server identifier associated with the identifier of the target session, and transmits it to the log acquisition terminal 3 in step S60.

  When the log acquisition terminal 3 receives the information of the processing server 1 that stores the log data of the target session from the session information database server 2, the log acquisition terminal 3 acquires the log data of the target session from the processing server 1 that stores the log data of the target session. .

  In the example shown in FIG. 7, the log acquisition terminal 3 inputs the session identifier of the target session to the first processing server 1a in step S61. The first processing server 1a acquires the log data of the target session from the access log data 111 in step S62 based on the session identifier received in step S61, and transmits it to the log acquisition terminal 3 in step S63.

  Similarly, in step S64, the log acquisition terminal 3 inputs the session identifier of the target session to the second processing server 1b. Based on the session identifier and line number received in step S64, the second processing server 1b acquires the log data of the target session from the access log data 111 in step S64, and transmits it to the log acquisition terminal 3 in step S66.

  In step S62 and step S64, the processing server 1 extracts all log data associated with the input target session identifier. Therefore, when the processing server 1 processes the target session a plurality of times, the processing server 1 may extract a plurality of log data.

  Thus, also in the modified example of the present invention, the log acquisition terminal 3 can acquire the log data of the target session, as in the embodiment. In the modified example, in step S62 and step S65, the processing server 1 acquires log data corresponding to the identifier of the target session from the access log data. Therefore, the processing server 1 generates a processing load due to search when acquiring log data. However, since only the session identifier is transmitted in step S53 and step S47, the bandwidth required for data transmission / reception can be reduced.

(Other embodiments)
As described above, the embodiments of the present invention and the modifications thereof have been described. However, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.

  For example, the session information database server 2 and the log acquisition terminal 3 described in the embodiment of the present invention may be configured on different hardware as shown in FIG. 1 or configured on the same hardware. Also good.

  It goes without saying that the present invention includes various embodiments not described herein. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.

DESCRIPTION OF SYMBOLS 1 Processing server 2 Session information database server 3 Log acquisition terminal 4 Reception server 5 Internal network 6 Distributed processing system 7 External terminal 8 External network 10 Information processing system 111 Access log data 111, 312 Log data 112 Digest log data 121 Session processing means 122 Digest log generation means 123 Digest log transmission means 124 Log request processing means 211 Session information data 212, 311 Session storage server data 221 Digest log reception means 222 Session information request processing means 313 Session log data 321 Session information request means 322 Log generation means

Claims (2)

An information processing system that acquires log data of a target session in a distributed processing system including a plurality of processing servers that process a plurality of sessions,
Multiple processing servers to handle multiple sessions;
A session information database server connected to the plurality of processing servers;
A log acquisition terminal for connecting to the plurality of processing servers and the session information database server and acquiring log data of a target session;
The processing server
Session processing means for storing log data of a session processed by the processing server in access log data in association with an identifier of the session;
Digest log transmission for transmitting digest log data generated by associating a session identifier extracted from the access log data with a log identifier for identifying log data of the session in the access log data to the session information database server Means,
When the target session identifier is input, log request processing means for outputting log data corresponding to the target session identifier from the access log data,
The session information database server
When the digest log data is received, it is determined whether or not the session identifier of the digest log data is included in the session information data,
When the session identifier is not included in the session information data,
Add a record that sets the session identifier of the session information data as a new key, set a correspondence list in which the identifier of the processing server that processed the session is set,
When the session identifier is included in the session information data, the identifier of the processing server that has processed the session is set in the correspondence list of the record set using the session identifier of the session information data as a key , and the log A digest log receiving means for storing the session information data in association with the identifier of
When the target session identifier is input, a session information request processing unit that extracts and outputs, from the session information data, the processing server identifier associated with the target session identifier and the log identifier in association with each other. And comprising
The log acquisition terminal
Session information requesting means for obtaining an identifier of the processing server that has processed the target session and an identifier of the log from the session information database server;
It further comprises log generation means for acquiring log data corresponding to the identifier of the target session and the identifier of the log from the processing server that has processed the target session, and generating session log data of the target session. Information processing system. An information processing method used in an information processing system for acquiring log data of a target session in a distributed processing system including a plurality of processing servers for processing a plurality of sessions,
The information processing system includes:
Multiple processing servers to handle multiple sessions;
A session information database server connected to the plurality of processing servers;
A log acquisition terminal for connecting to the plurality of processing servers and the session information database server and acquiring log data of a target session;
Storing the log data of the session processed by the processing server in the access log data in association with the identifier of the session and the identifier of the log;
The processing server transmits digest log data including a session identifier and a log identifier extracted from the access log data to the session information database server;
The session identifier and log identifier included in the digest log data and the session When the session information database server receives the digest log data, whether or not the session identifier of the digest log data is included in the session information data Determine
When the session identifier is not included in the session information data,
Add a record that sets the session identifier of the session information data as a new key, and in this record, set a correspondence list that associates the identifier of the processing server that processed the session and the identifier of the log,
When the session identifier is included in the session information data, the identifier of the processing server that has processed the session and the identifier of the log are included in the corresponding list of records set with the session identifier of the session information data as a key. Associating the identifier of the processing server that has processed the setting to be stored in session information data;
The log acquisition terminal inputs an identifier of the target session to the session information database server;
The session information database server extracts, from the session information data, the processing server identifier and the log identifier associated with the target session identifier, and outputs them;
The log acquisition terminal acquires, from the session information database server, an identifier of a processing server that has processed the target session and an identifier of a log;
The log acquisition terminal inputs an identifier of the target session and an identifier of a log to a processing server that has processed the target session;
When the processing server receives the identifier of the target session and the identifier of the log,
Outputting log data corresponding to the identifier of the target session and the identifier of the log from the access log data;
The log acquisition terminal includes a step of acquiring log data corresponding to an identifier of the target session and a log identifier from a processing server that has processed the target session, and generating session log data of the target session. A characteristic information processing method.

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