WO2016129275A1

WO2016129275A1 - Information processing device, log management system, log management method, and program recording medium

Info

Publication number: WO2016129275A1
Application number: PCT/JP2016/000682
Authority: WO
Inventors: 拓也堀部
Original assignee: 日本電気株式会社
Priority date: 2015-02-10
Filing date: 2016-02-10
Publication date: 2016-08-18
Also published as: JPWO2016129275A1

Abstract

In order to collect and hold log information appropriately for each node in an information processing system equipped with a plurality of nodes, this information processing device is equipped with: a log control means that stores in a storage means internal log information, which is a log generated internally; a transmission means that embeds the internal log information in a first heartbeat signal for reporting the existence of the information processing device, and that transmits the first heartbeat signal to an external transmission destination device; and a reception means that receives from an external transmission origin device a second heartbeat signal, which is for reporting the existence of the external transmission origin device, and in which is embedded external log information, which is a log generated by the external transmission origin device. The reception means extracts the external log information from the second heartbeat signal, and the log control means stores the extracted external log information in the storage means.

Description

INFORMATION PROCESSING APPARATUS, LOG MANAGEMENT SYSTEM, LOG MANAGEMENT METHOD, AND PROGRAM RECORDING MEDIUM

The present disclosure relates to an information processing apparatus, a log management system, a log management method, and a program storage medium.

An HA (High Availability) cluster system is composed of a plurality of nodes. And each node monitors the failure of other nodes. Then, when a failure of a certain node is detected, "system switching" is resumed in which the task started in the relevant node is resumed in another node. As a method of monitoring the failure of other nodes, each node performs communication called "heartbeat" to other nodes at regular intervals in order to notify that the own node is operating normally.

In addition, the information system generally outputs a log, which is an operation record of software executed in the information system, to a file. The contents of the log include information such as date and time, node name, module name, and message. Then, when a failure occurs, the information system analyzes the log and tries to solve the failure. The log is similarly analyzed when a failure occurs in the HA cluster system.

Patent Document 1 discloses a technique for determining the operating state of a specific application program executed on a computer. In the technology according to Patent Document 1, the task processing module of the active application server periodically transmits a heartbeat signal to the log service module of the active web server. Also, when an error occurs, the task processing module transmits error information to the log service module instead of the heartbeat signal. The log service module generates log information from the received heartbeat signal or error information and outputs the file.

Patent Document 2 discloses that log data is processed in binary format in a data processing system, and it is desirable to use text format for data transfer to processors with different data formats. For that purpose, Patent Document 2 discloses that a coder and a decoder for converting log information into a text format and a binary format are internally provided.

JP 2007-265215 A Japanese Patent Application Laid-Open No. 05-189274

Here, in the HA cluster system, since each node operates in cooperation, when a failure occurs, it is necessary to collect and analyze logs of all the nodes. However, Patent Documents 1 and 2 have a problem that log information of each node is not properly collected. The reason is that only a part of log information is transmitted in Patent Document 1, and there is a possibility that the amount of information of the log may be insufficient at the time of failure analysis. Moreover, in patent document 2, since log data are not collected, it is because there is a possibility that the information content of a log may run short also at the time of failure analysis.

The present disclosure has been made to solve such problems, and it is an object of the present disclosure to provide a technique for appropriately collecting and holding log information of each node in an information processing system including a plurality of nodes. One of the

An information processing apparatus according to a first aspect of the present disclosure is
Log control means for storing internal log information, which is an internally generated log, in a storage means;
Transmission means for embedding the internal log information in a first heartbeat signal for notifying the existence of the self, and transmitting the first heartbeat signal to an external transmission destination device;
Receive external log information, which is a log generated by an external transmission source device, and receive from the external transmission source device a second heartbeat signal for performing survival notification of the external transmission source device Means, and
The receiving means is
Extracting the external log information from the second heartbeat signal;
The log control means
The extracted external log information is stored in the storage means.

A log management system according to a second aspect of the present disclosure is
A first node having a first control means and a first storage means;
A second node having a second control means and a second storage means,
The first control means is
Storing first log information, which is a log generated in the first node, in the first storage unit;
Embedding the first log information in a first heartbeat signal for notifying the existence of the first node;
Sending the first heartbeat signal to the second node;
The second control means is
Receiving the first heartbeat signal from the first node;
Extracting the first log information from the first heartbeat signal;
Storing the extracted first log information and second log information, which is a log generated in the second node, in the second storage unit;
Embedding the second log information in a second heartbeat signal for notifying the existence of the second node;
Sending the second heartbeat signal to the first node;
The first control means is
Receiving the second heartbeat signal from the second node;
Extracting the second log information from the second heartbeat signal;
The extracted second log information is stored in the first storage unit.

A log management method according to a third aspect of the present disclosure is
Store internal log information, which is an internally generated log, in storage means,
Embedding the internal log information in the first heartbeat signal to notify the survival of the self,
Sending the first heartbeat signal to an external destination device;
External log information, which is a log generated by an external transmission source device, is embedded, and a second heartbeat signal for performing survival notification of the external transmission source device is received from the external transmission source device;
Extracting the external log information from the second heartbeat signal;
The extracted external log information is stored in the storage means.

The log management program according to the fourth aspect of the present disclosure is
A process of storing internal log information, which is an internally generated log, in a storage unit;
Embedding the internal log information in a first heartbeat signal for notifying of the existence of the user;
A process of transmitting the first heartbeat signal to an external transmission destination device;
Processing in which external log information, which is a log generated by an external transmission source device, is embedded, and a second heartbeat signal for performing survival notification of the external transmission source device is received from the external transmission source device When,
A process of extracting the external log information from the second heartbeat signal;
A process of storing the extracted external log information in the storage unit;
On a computer.

A log management method according to a fifth aspect of the present disclosure is:
A first node having a first storage unit;
Storing first log information, which is a log generated in the first node, in the first storage unit;
Embedding the first log information in a first heartbeat signal for notifying the existence of the first node;
Transmitting the first heartbeat signal to a second node having a second storage unit;
The second node is
Receiving the first heartbeat signal from the first node;
Extracting the first log information from the first heartbeat signal;
Storing the extracted first log information and second log information, which is a log generated in the second node, in the second storage unit;
Embedding the second log information in a second heartbeat signal for notifying the existence of the second node;
Sending the second heartbeat signal to the first node;
The first node is
Receiving the second heartbeat signal from the second node;
Extracting the second log information from the second heartbeat signal;
The extracted second log information is stored in the first storage unit.

A log management system according to a sixth aspect of the present disclosure is
Comprising a first node and a second node,
The first node is
Embedding first log information, which is a log generated in the first node, in a first heartbeat signal for notifying the survival of the first node;
Sending the first heartbeat signal to the second node;
The second node is
Receiving the first heartbeat signal from the first node;
Extracting the first log information from the first heartbeat signal;
The extracted first log information and second log information which is a log generated in the second node are stored in a storage unit of the second node.

According to the present disclosure, log information of each node in an information system including a plurality of nodes can be appropriately collected and held.

FIG. 1 is a block diagram showing the configuration of the information processing apparatus according to the first embodiment of the present disclosure. FIG. 2 is a flowchart showing a flow of a log management method according to the first embodiment of the present disclosure. FIG. 3 is a block diagram showing the configuration of a log management system according to the second embodiment of the present disclosure. FIG. 4 is a sequence diagram showing a flow of a log management method according to the second embodiment of the present disclosure. FIG. 5 is a block diagram showing the configuration of the HA cluster system according to the third embodiment of the present disclosure. FIG. 6 is a block diagram showing a configuration of a node according to the third embodiment of the present disclosure. FIG. 7 is a sequence diagram showing a flow of log storage processing of the own node according to the third embodiment of the present disclosure and log transmission processing to other nodes. FIG. 8 is a sequence diagram showing a flow of log reception and storage processing from another node according to the third embodiment of the present disclosure. FIG. 9 is a flowchart showing a flow of log expansion operation of the own node of the cluster control unit according to the third embodiment of the present disclosure. FIG. 10 is a flowchart showing a flow of log storage of the log dynamic control unit according to the third embodiment of the present disclosure and log transmission to other nodes. FIG. 11 is a flowchart illustrating the flow of the operation of the log format converter according to the third embodiment of the present disclosure. FIG. 12 is a flowchart showing a flow of operation of the heartbeat transmitting unit according to the third embodiment of the present disclosure. FIG. 13 is a flowchart illustrating the flow of the operation of the heartbeat receiving unit according to the third embodiment of the present disclosure. FIG. 14 is a flowchart showing a flow of log reception processing of another node of the cluster control unit according to the third embodiment of the present disclosure. FIG. 15 is a flowchart illustrating a flow of log output destination control processing of the log dynamic control unit according to the third embodiment of the present disclosure. FIG. 16 is a flowchart showing a flow of cluster operation status notification processing of the cluster control unit according to the third embodiment of the present disclosure. FIG. 17 is a block diagram showing the hardware configuration of the computer apparatus.

Hereinafter, specific embodiments to which the present disclosure is applied will be described in detail with reference to the drawings. In the drawings, the same elements are denoted by the same reference numerals, and redundant description will be omitted as necessary. Note that the arrows described in the block diagram illustrate the moving direction of data, and it is not intended that the moving direction of data is limited to a specific direction.

Embodiment 1
FIG. 1 is a block diagram showing the configuration of an information processing apparatus 1000 according to the first embodiment of the present disclosure. The information processing apparatus 1000 includes a storage unit 1100, a transmission unit 1200, a log control unit 1300, and a reception unit 1400. Further, the information processing apparatus 1000 can communicate with the external transmission destination apparatus 2000 and the transmission source apparatus 3000. The transmission destination apparatus 2000 and the transmission source apparatus 3000 may be the same apparatus. Also, there may be a plurality of transmission destination devices 2000 and a plurality of transmission source devices 3000. Therefore, it can be said that the information processing apparatus 1000, the transmission destination apparatus 2000, and the transmission source apparatus 3000 constitute an information processing system including a plurality of nodes.

The log control unit 1300 stores the internal log information 1110 in the storage unit 1100. Here, the internal log information 1110 is a log generated inside the information processing apparatus 1000. For example, the internal log information 1110 is a log file output from an application or middleware executed in the information processing apparatus 1000, or a system log output from an OS (Operating System).

The transmitter 1200 embeds the internal log information 1110 in the first heartbeat signal 4100. Here, the first heartbeat signal 4100 is a signal for notifying the survival of the self (the information processing apparatus 1000). Then, the transmission unit 1200 transmits the first heartbeat signal 4100 to the external transmission destination device 2000.

The receiving unit 1400 receives the second heartbeat signal 4200 from the transmission source device 3000. Here, the second heartbeat signal 4200 is a signal for notifying the survival of the transmission source device 3000. In particular, it is assumed that external log information 1120 is embedded in the second heartbeat signal 4200. The external log information 1120 is a log generated by the external transmission source device 3000.

The receiving unit 1400 extracts the external log information 1120 from the second heartbeat signal 4200. Then, the log control unit 1300 stores the extracted external log information 1120 in the storage unit 1100.

FIG. 2 is a flowchart showing a flow of a log management method according to the first embodiment of the present disclosure. First, the log control unit 1300 stores the internal log information 1110 in the storage unit 1100 (S11). Next, the transmission unit 1200 embeds the internal log information 1110 in the first heartbeat signal 4100 (S12). Then, the transmission unit 1200 transmits the first heartbeat signal 4100 to the transmission destination device 2000 (S13).

Thereafter, the receiving unit 1400 receives the second heartbeat signal 4200 from the transmission source device 3000 (S14). Then, the receiving unit 1400 extracts the external log information 1120 from the second heartbeat signal 4200 (S15). Finally, the log control unit 1300 stores the extracted external log information 1120 in the storage unit 1100 (S16).

From the above, the information processing apparatus 1000 can hold the internal log information 1110 and the external log information 1120 in its own storage unit 1100. If the transmission destination device 2000 and the transmission source device 3000 also have the same configuration as the information processing device 1000, logs generated by other devices can be internally held. That is, according to the first embodiment, the information processing apparatus 1000 transmits and receives heartbeat information for performing alive notification between the devices, including log information more detailed than a simple alive notification, thereby providing details from each node. Log information can be collected and held. Also, the information processing apparatus 1000 can suppress the number of times of communication for log transmission by using the existing heartbeat communication. Therefore, the information processing apparatus 1000 can appropriately collect and hold log information of each node in an information processing system including a plurality of nodes.

Second Embodiment
The second embodiment is to describe the first embodiment described above from another point of view.

FIG. 3 is a block diagram showing the configuration of a log management system 5000 according to the second embodiment of the present disclosure. The log management system 5000 includes a first node 5100 and a second node 5200. The first node 5100 has a first control unit 5110 and a first storage unit 5120. The second node 5200 includes a second control unit 5210 and a second storage unit 5220.

The first control unit 5110 stores the first log information 5121 in the first storage unit 5120. Here, the first log information 5121 is a log generated in the first node 5100. The first log information 5121 is information equivalent to the internal log information 1110 described above. The first control unit 5110 embeds the first log information 5121 in the first heartbeat signal 5310. Here, the first heartbeat signal 5310 is a signal for notifying the existence of the first node 5100. The first heartbeat signal 5310 is information equivalent to the first heartbeat signal 4100 described above. The first control unit 5110 transmits a first heartbeat signal 5310 to the second node 5200.

The second control unit 5210 receives the first heartbeat signal 5310 from the first node 5100. The first heartbeat signal 5310 can be said to correspond to the second heartbeat signal 4200 described above for the second node 5200. Then, the second control unit 5210 extracts the first log information 5221 from the first heartbeat signal 5310. Here, the first log information 5221 has the same content as the first log information 5121. Further, it can be said that the first log information 5221 corresponds to external log information for the second node 5200.

The second control unit 5210 stores the extracted first log information 5221 and the second log information 5222 in the second storage unit 5220. Here, the second log information 5222 is a log generated in the second node 5200. The second log information 5222 is information equivalent to the internal log information 1110 described above. The second control unit 5210 embeds the second log information 5222 in the second heartbeat signal 5320. Here, the second heartbeat signal 5320 is a signal for notifying the existence of the second node 5200. The second heartbeat signal 5320 can be said to correspond to the first heartbeat signal 4100 for the second node 5200. The second control unit 5210 transmits the second heartbeat signal 5320 to the first node 5100.

The first controller 5110 receives the second heartbeat signal 5320 from the second node 5200. The second heartbeat signal 5320 is equivalent to the second heartbeat signal 4200 for the first node 5100. Then, the first control unit 5110 extracts the second log information 5122 from the second heartbeat signal 5320. Here, the second log information 5122 has the same content as the second log information 5222. Further, it can be said that the second log information 5122 corresponds to the external log information for the first node 5100. The first control unit 5110 stores the extracted second log information 5122 in the first storage unit 5120.

FIG. 4 is a sequence diagram showing a flow of a log management method according to the second embodiment of the present disclosure. First, the first control unit 5110 stores the first log information 5121 in the first storage unit 5120 (S21). Next, the first control unit 5110 embeds the first log information 5121 in the first heartbeat signal 5310 (S22). Then, the first control unit 5110 transmits the first heartbeat signal 5310 to the second node 5200 (S23).

Subsequently, the second control unit 5210 receives the first heartbeat signal 5310 from the first node 5100. Then, the second control unit 5210 extracts the first log information 5221 from the first heartbeat signal 5310 (S24). Then, the second control unit 5210 stores the extracted first log information 5221 in the second storage unit 5220 (S25a). Further, the second control unit 5210 stores the second log information 5222 in the second storage unit 5220 together with or separately from step S25a (S25b).

Thereafter, the second control unit 5210 embeds the second log information 5222 in the second heartbeat signal 5320 (S26). Then, the second control unit 5210 transmits the second heartbeat signal 5320 to the first node 5100 (S27).

Thereafter, the first control unit 5110 receives the second heartbeat signal 5320 from the second node 5200. Then, the first control unit 5110 extracts the second log information 5122 from the second heartbeat signal 5320 (S28). Finally, the first control unit 5110 stores the extracted second log information 5122 in the first storage unit 5120 (S29).

Although the processes of S21 to S29 have been described as a series of flows in the above, the processes of S21 to S25a and the processes of S25b to S29 can be performed in parallel.

Thus, according to the second embodiment, the first node 5100 and the second node 5200 can mutually transfer internal log information via heartbeat signals between them. Therefore, as in the first embodiment, the log information of each node in the information processing system including a plurality of nodes can be appropriately collected and held. Furthermore, since each node similarly stores all the logs of its own node and other nodes, the servers storing logs can be made substantially redundant.

Embodiment 3
The third embodiment is a specific example of the first and second embodiments described above. First, problems to be solved by the third embodiment will be described in detail. First, as a method of saving a log of a system configured by a plurality of nodes, a first method in which each node configuring the system individually saves the log, and each node transfers the log to the log aggregation node There is a second method in which log aggregation nodes collectively manage. The same log storage method is used for HA cluster systems. However, when these methods are applied to an HA cluster system, there are some issues, which will be described below.

[1] First Method Each node constituting an HA cluster stores its own log in a data storage device. Then, the administrator collects logs from each node at the timing when the logs are needed. Below are three issues when using this method.

[1] -1 If administrators need logs, they need to obtain them from individual nodes one by one. Therefore, when collecting logs, the following log collection time will occur.

Log collection time = (user operation time + transfer time) × number of nodes

[1] -2 Since each node stores its own log in the data storage device, if the amount of information in the log is increased, an increase in input / output of the data storage device and an increase in file size occur. Therefore, a lot of resources of the node are consumed. Below are two ways to address this issue and additional issues.

[1] -2-1 Each node uses the CPU (Central Processing Unit) of its own node to compress the log and then save it in the data storage device. As a result, the input and output of the data storage device and the increase in file size are suppressed. However, this countermeasure causes a further problem of increasing the CPU occupancy rate when compressing the log.

[1] -2-2 Among the logs output by each node, save only the log contents specified by the administrator in the data storage device. As a result, the input and output of the data storage device and the increase in file size are suppressed. However, this handling method causes a further problem that the amount of log information decreases regardless of whether the node status is normal or abnormal, because only log information specified by the administrator remains.

[1] -3 If an error occurs in a node that configures an HA cluster, the log of the node can not be acquired until the node is restarted normally. Moreover, in the case of a failure of the data storage device, there is a possibility that the logs of the corresponding node may be completely lost.

[2] Second method Each node transfers its own log to the log aggregation node via the network, and the log aggregation node manages logs collectively. When acquiring the log, the administrator acquires from the log aggregation node. This method can solve the problems shown in [1] -1 and [1] -2. The following are three issues when using this method.

[2] -1 The need to prepare a dedicated node for log aggregation raises the issue of increasing the cost of building and managing an HA cluster system.

[2] -2 Since it is necessary to transfer the log of each node to the log aggregation node via the network, there is a problem that the occupancy rate of the network band increases. Below are three ways to address this issue and additional issues.

[2] -2-1 It is possible to reduce the occupancy rate of the network bandwidth by performing network transfer after each node compresses the log using its own CPU. However, this handling method causes a further problem of increasing the CPU occupancy rate at the time of log compression in each node and at the time of decompression of the compressed log in the log aggregation server.

[2] 2-2. Of the logs output by each node, it is possible to reduce the network bandwidth occupancy rate by transferring only the log contents specified by the administrator to the log aggregation server. However, according to this countermeasure method, since only the log information designated by the administrator remains, a further problem arises that the amount of information of the log decreases.

[2] -2-3 By transferring data transfer to the log aggregation server of each server through a dedicated network line, it is possible not to occupy the network bandwidth. However, according to this countermeasure method, since it is necessary to prepare a network line dedicated to log transfer, there arises a further problem that the cost of construction and operation of the HA cluster system increases.

[2] -3 If the log consolidation node goes down, it will not be possible to obtain logs until the log consolidation node restarts properly. In addition, if the cause of the node showing an abnormality is a failure of the data storage device, there is a possibility that the logs of all the nodes may be lost. The following shows how to address this issue and further issues.

[2] -3-1 By HA clustering the log aggregation node, logs can be acquired even when a failure of the log aggregation node occurs. However, according to this countermeasure method, it is necessary to newly prepare a node for HA cluster, which causes a further problem that the cost of construction and operation of HA cluster system increases.

From the above, it can be said that the following three problems exist in the two log storage methods described above.
1) It takes time and effort to collect logs of all nodes ([1] -1).
2) When the amount of log information increases, the following resources required by each node increase ([1] -2, [2] -1, [2] -2).

-Network bandwidth at the time of log transfer-Data storage device capacity at the time of increase of log file size-File I / O bandwidth at the time of log file writing 3) Log becomes unavailable on demand on node failure or disappears ([1] -3, [2]-3).

Moreover, in the patent document 1 mentioned above, although the log of an own node hold | maintains itself, the log of other nodes is a received heartbeat signal or error information, a signal reception date, server identification information of a transmission source etc. Is added. Therefore, the degree of detail of the log information differs between the log of the own node and the logs of other nodes. For example, for other nodes, survival confirmation is possible but there is no log of normal operation. In addition, detailed log can not be acquired for error information. Here, failure analysis may require various logs. Therefore, in Patent Document 1, since log information is limited, logs of all nodes can not be analyzed to comprehensively determine the cause of failure. Further, in Patent Document 1, each time a heartbeat signal or error information is received, log information is generated and output to a file (stored in a non-volatile storage device). Therefore, the load of file input / output is applied.

Therefore, in order to solve the problems described above, the third embodiment is provided with the following configuration, for example, to achieve the effects.

(1) Binaryization of log Each node converts its own log from text format to binary format and holds it. Each node can reduce the amount of log data by holding the log in binary format. And along with this, it is possible to suppress the network bandwidth occupancy rate at the time of network transfer of logs.

(2) Store the log in heartbeat packet and expand to all nodes Each node stores the binary-ized log of its own node in heartbeat packet and expands it to all nodes. Heartbeat communication takes place every few seconds. Therefore, the administrator can acquire logs of all latest nodes from any single node by expanding the log including the heartbeat.

(3) Dynamically Holding Logs According to Cluster Operation Status Each node holds the log received at the time of heartbeat communication in the main storage device. Since each node holds the logs of all the nodes, even if a failure occurs in one node, it is possible to access other nodes and acquire the log of the failed node on demand. The logs held by each node on the main storage device are output to the data storage device when the number of operating nodes of the cluster satisfies a condition such as being less than the set value. Thereby, it is possible to prevent the loss of the log on the main storage device accompanying the stop of the node.

Further, in addition to the above-described first or second embodiment, the third embodiment can have the following features.

That is, the internal log information is generated in a text format, the log control unit converts the internal log information into a binary format, and stores the internal log information converted into the binary format in the storage unit. The transmission unit embeds the internal log information converted into the binary format in the first heartbeat signal, and transmits the first heartbeat signal to the external transmission destination device. The second heartbeat signal is embedded in the external log information converted from text format to binary format, and the receiving unit extracts the external log information in binary format from the second heartbeat signal. The log control unit stores the external log information extracted in the binary format in the storage unit. As a result, the size of log data can be reduced and the used capacity of the storage device can be suppressed. In addition, since the amount of transferred data is also reduced, the occupancy rate of the network band can be suppressed.

Also, the storage unit includes a primary storage device, and the log control unit stores the internal log information converted into the binary format in the primary storage device, and the external log information extracted in the binary format May be stored in the primary storage device, and in response to a request, the internal log information or the external log information may be read from the primary storage device, converted into a text format, and output. This can reduce disk I / O (Input / Output) when the log is received. In addition, since binary format is converted into text format as needed, log information of all nodes can be immediately accessed from any node at the time of failure analysis or the like.

Furthermore, the storage unit further includes a secondary storage device, and the log control unit reads the internal log information or the external log information from the primary storage device according to the operation status of the external transmission source device. Converting the text format into the text format, storing the internal log information or the external log information converted into the text format in the secondary storage device, and reading the internal log information or the external log information read out from the primary storage device You may delete it from Thus, for example, when an error occurs, the log can be saved to the secondary storage device and stored for a long time. In addition, free memory space can be secured.

Subsequently, a specific configuration and process of the HA cluster system according to the third embodiment of the present disclosure will be described below.

FIG. 5 is a block diagram showing the configuration of the HA cluster system 1 according to the third embodiment of the present disclosure. The HA cluster system 1 includes

nodes

10, 20, 30 and 40 and a network switch 50. The nodes 10 to 40 are connected by a network. That is, the nodes 10 to 40 are connected to the network switch 50 by a communication line. Therefore, the

clusterwares

11, 21, 31 and 41 of each node can communicate with each other.

The node 10 includes clusterware 11, a log management unit 12, a data storage device 13, and a main storage device 14. The clusterware 11 performs node state management and heartbeat communication of the HA cluster system 1. The log management unit 12 performs log format conversion and write control.

The node 20 includes clusterware 21, a log management unit 22, a data storage device 23, and a main storage device 24. The clusterware 21 performs node state management and heartbeat communication of the HA cluster system 1. The log management unit 22 performs log format conversion and write control.

The node 30 includes clusterware 31, a log management unit 32, a data storage device 33, and a main storage device 34. The clusterware 31 performs node state management and heartbeat communication of the HA cluster system 1. The log management unit 32 performs log format conversion and write control.

The node 40 includes clusterware 41, a log management unit 42, a data storage device 43, and a main storage device 44. The clusterware 41 performs node state management and heartbeat communication of the HA cluster system 1. The log management unit 42 performs log format conversion and write control.

The

data storage devices

13, 23, 33 and 43 are non-volatile storage devices, for example, hard disks. The

main storage devices

14, 24, 34 and 44 are volatile storage devices, and are, for example, memories such as a random access memory (RAM). That is, the main storage device 14 or the like is an example of a primary storage device, and the data storage device 13 or the like is an example of a secondary storage device.

FIG. 6 is a block diagram showing a configuration of the node 100 according to the third embodiment of the present disclosure. The nodes 10 to 40 described above can adopt the same configuration within the scope of the description of the present embodiment. For example, the nodes 10 to 40 have a configuration equivalent to that of the following node 100. Therefore, in the following description, the configurations of the nodes 10 to 40 will be described using the internal configuration of the node 100.

The node 100 includes a clusterware 101, a log management unit 105, a data storage device 108, and a main storage device 109. The clusterware 101 includes a heartbeat receiving unit 102, a heartbeat transmitting unit 103, and a cluster control unit 104. The heartbeat receiving unit 102 receives a heartbeat signal. The heartbeat transmitting unit 103 transmits a heartbeat signal. The cluster control unit 104 controls node states and clusters, and outputs a cluster log of the own node. The cluster log of the own node is an example of the internal log information 1110 described above.

The log management unit 105 includes a log format conversion unit 106 and a log dynamic control unit 107. The log format converter 106 performs mutual conversion between the text format and the binary format for the log. The log dynamic control unit 107 controls the output content and output destination of the log. The data storage device 108 stores a text format log 1081. The main storage device 109 stores a binary format log 1091.

FIG. 7 is a sequence diagram showing a flow of log storage processing of the own node according to the third embodiment of the present disclosure and log transmission processing to other nodes. First, the cluster control unit 104 generates a cluster log (text format log) of its own node (S111). Then, the cluster control unit 104 transmits the generated text format log to the log dynamic control unit 107 (S112).

Next, the log dynamic control unit 107 sends a log format conversion request for the received text format log to the log format conversion unit 106 (S113). The log format converter 106 converts the received log from text format to binary format (S114). Then, the log format conversion unit 106 sends the converted binary format log back to the log dynamic control unit 107.

The log dynamic control unit 107 determines the output destination of the log. When the output destination of the log is the main storage device, the log dynamic control unit 107 stores the log in the main storage device 109 (S115). When the output destination of the log is the data storage device, the log dynamic control unit 107 stores the log in the data storage device 108 (S116). Here, since the log is converted to the binary format log, it is assumed that the output destination of the log is determined to be the main storage device. That is, step S115 is executed, and the dynamic log control unit 107 saves the binary format log 1091 in the main storage device 109 (as internal log information 1110).

Then, the log dynamic control unit 107 transmits the binary format log to the heartbeat transmitting unit 103 (S117). The heartbeat transmitting unit 103 stores (embeds) the binary format log in the heartbeat packet (S118), and transmits it to the heartbeat receiving unit of the other node (S119).

FIG. 8 is a sequence diagram showing a flow of log reception and storage processing from another node according to the third embodiment of the present disclosure. First, the heartbeat receiving unit 102 receives a heartbeat (in which a binary format log is embedded) from the heartbeat transmitting unit of another node (S121). The heartbeat receiving unit 102 extracts the binary format log stored in the received packet of the heartbeat (S122). Then, the heartbeat receiving unit 102 transmits the extracted binary format log to the cluster control unit 104 (S123).

The cluster control unit 104 transmits the received binary format log to the log dynamic control unit 107 (S124). The log dynamic control unit 107 determines the output destination of the log. When the output destination of the log is the main storage device, the log dynamic control unit 107 stores the log in the main storage device 109 (S125). When the output destination of the log is the data storage device, the log dynamic control unit 107 stores the log in the data storage device 108 (S126). Here, since the log is a binary format log, the output destination of the log is determined to be the main storage device. That is, step S125 is executed, and the dynamic log control unit 107 stores the binary format log 1091 in the main storage device 109 (as external log information 1120).

FIG. 9 is a flowchart illustrating the flow of the log expansion operation of the own node of the cluster control unit 104 according to the third embodiment of the present disclosure. The cluster control unit 104 generates a cluster log (text format log) of its own node in text format periodically or at any timing (S601). Then, the cluster control unit 104 transmits the generated cluster log of the own node to the log dynamic control unit 107 (S602). Then, the cluster control unit 104 causes the log dynamic control unit 107 to execute the log storage and log transmission operation to another node (FIG. 10 described later) (S603).

Thereafter, the cluster control unit 104 receives the binary format log converted into the binary format from the log dynamic control unit 107 (S604). For example, the cluster control unit 104 receives the binary format log in S206 of FIG. 10 described later. Then, the cluster control unit 104 transmits the binary format log to the heartbeat transmission unit 103 (S605).

FIG. 10 is a flowchart showing a flow of log storage of the log dynamic control unit 107 and log transmission to other nodes according to the third embodiment of the present disclosure. The process of FIG. 10 corresponds to the process of S603 of FIG. 9 described above or the process executed after S703 of FIG. 14 described later.

First, the log dynamic control unit 107 waits for reception of a log from the cluster control unit 104 (S201). Then, in accordance with S602 in FIG. 9 and S703 in FIG. 14, the log dynamic control unit 107 receives the log.

After receiving the log from the cluster control unit 104, the log dynamic control unit 107 determines the data format of the received log (S202). When the received log is in the text format, the log dynamic control unit 107 transmits the text format log to the log format conversion unit 106 (S203). Then, the log dynamic control unit 107 causes the log format conversion unit 106 to execute conversion processing of the log into binary format (FIG. 11 described later) (S204).

After step S204, the log dynamic control unit 107 receives the log converted into the binary format from the log format conversion unit 106 (S205). Then, the log dynamic control unit 107 transmits the received binary format log to the cluster control unit 104 (S206), and the process proceeds to step S207.

Even in the case where the received log is binary format in step S202, the log dynamic control unit 107 proceeds to step S207 without executing steps S203 to S206. In this case, the log dynamic control unit 107 does not perform format conversion because the log is a log transmitted from the heartbeat transmitting unit of another node.

Thereafter, the log dynamic control unit 107 executes a log output destination control process (FIG. 15 described later) (S207). The log dynamic control unit 107 determines the output destination of the log based on the result of step S207 (S208). When the output destination of the log is the main storage device, the log dynamic control unit 107 stores the binary format log 1091 in the main storage device 109 (S209). When the output destination of the log is a data storage device, the log is converted to a text log in the output destination control process of the log. Therefore, the dynamic log control unit 107 saves the text format log 1081 in the data storage device 108 (S210), and returns to step S201.

FIG. 11 is a flowchart illustrating the flow of the operation of the log format converter according to the third embodiment of the present disclosure. The process of FIG. 11 corresponds to the process of S204 of FIG. 10 described above or the process of S306 of FIG. 15 described later.

First, the log format conversion unit 106 waits for reception of the log from the log dynamic control unit 107 (S901). Then, in accordance with the processing of S203 of FIG. 10 and S305 of FIG. 15, the log format conversion unit 106 receives the log.

After receiving the log from the dynamic log control unit 107, the log format conversion unit 106 determines the data format of the received log (S902). If the received log is in text format, the log dynamic control unit 107 converts the log into binary format (S903). For example, since the log of the own node accepted in S203 of FIG. 10 is in text format, it is converted into binary format. When the received log is in binary format, the log dynamic control unit 107 converts the log into text format (S904). For example, the log received in S305 of FIG. 15 is in binary format and is converted into text format because it is a case of conversion into text format according to the operating status of each node.

Thereafter, the log format conversion unit 106 transmits the converted log to the log dynamic control unit 107 (S905), and returns to step S901.

FIG. 12 is a flowchart showing the flow of the operation of the heartbeat transmitting unit 103 according to the third embodiment of the present disclosure. First, the heartbeat transmitting unit 103 waits for reception of the binary format log from the cluster control unit 104 (S501). Then, in response to S605 in FIG. 9, the heartbeat transmitting unit 103 receives the binary format log.

The heartbeat transmitting unit 103 stores the received binary format log in a heartbeat packet (S502). Then, the heartbeat transmitting unit 103 transmits the heartbeat packet in which the binary format log is embedded to the heartbeat receiving unit of the other node (S 503), and returns to step S 501.

FIG. 13 is a flowchart showing the flow of the operation of the heartbeat receiving unit 102 according to the third embodiment of the present disclosure. First, the heartbeat receiving unit 102 waits for reception of heartbeat packets from the heartbeat transmitting units of other nodes (S401). Then, in accordance with S503 of FIG. 12, the heartbeat receiving unit 102 receives a heartbeat packet.

The heartbeat receiving unit 102 extracts a binary log from the received heartbeat packet (S402). Then, the heartbeat receiving unit 102 transmits the extracted binary format log to the cluster control unit 104 (S403), and returns to step S401.

FIG. 14 is a flowchart showing a flow of log reception processing of another node of the cluster control unit 104 according to the third embodiment of the present disclosure. First, the cluster control unit 104 waits for reception of the binary format log from the heartbeat receiving unit 102 (S701). Then, in accordance with S403 of FIG. 13, the cluster control unit 104 receives the binary format log from the heartbeat receiving unit 102 (S702). Thereafter, the cluster control unit 104 transmits the received binary format log to the log dynamic control unit 107 (S703).

FIG. 15 is a flowchart showing a flow of log output destination control processing of the log dynamic control unit 107 according to the third embodiment of the present disclosure. The process of FIG. 15 corresponds to the process of S207 of FIG. 10 described above.

First, the log dynamic control unit 107 transmits a cluster operation status request to the cluster control unit 104 (S301). At this time, the process of FIG. 16 described later is performed. Then, the log dynamic control unit 107 receives the notification of the cluster operation status from the cluster control unit 104. The log dynamic control unit 107 determines whether the number of operating nodes of the cluster is three or more from the received notification of the cluster operating status (S302). Here, it is assumed that the threshold value "3 nodes" is set in advance. However, the threshold is not limited to this. Also, the threshold may be appropriately changed depending on the number of nodes.

When the number of operating nodes is three or more, the log dynamic control unit 107 sets the log output destination in the main storage device (S309), and proceeds to S208 in FIG.

On the other hand, when the number of operating nodes is less than three nodes, the log dynamic control unit 107 sets the log output destination in the data storage device (S303). Subsequently, the log dynamic control unit 107 acquires the saved binary format log from the main storage device 109 (S304). The log acquired at this time is, for example, a log of the own node, a past log of another node, or the like.

Then, the log dynamic control unit 107 transmits the acquired binary format log and the received binary format log to the log format conversion unit 106 (S305). Then, the log dynamic control unit 107 causes the log format conversion unit 106 to execute the conversion process (FIG. 11) of the log into the binary format (S306).

After step S306, the log dynamic control unit 107 receives the log converted into the text format from the log format conversion unit 106 (S307), and proceeds to S208 in FIG.

FIG. 16 is a flowchart showing a flow of cluster operation status notification processing of the cluster control unit 104 according to the third embodiment of the present disclosure. First, the cluster control unit 104 receives the cluster operation status request from the log dynamic control unit 107 in S301 of FIG. 15 (S801). Then, the cluster control unit 104 collectively transmits the operation statuses of all other nodes and the node itself to the log dynamic control unit 107 as a cluster operation status notification (S802).

From the above, the following effects are achieved in the present embodiment. First, each node will have logs for all nodes. Therefore, logs of all nodes can be acquired from any single node, which reduces the time and effort for log collection.

In addition, the amount of log data can be reduced by binary conversion of the log. Therefore, the network bandwidth occupancy rate at the time of network transfer is reduced. Also, during normal operation of the cluster, logs are managed by the main storage device. Therefore, it is possible to reduce file input / output and output to a file at an arbitrary timing. As a result, even when a large number of logs are output in a short time, it is possible to minimize the influence on the operation of the HA in the cluster system.

Furthermore, since each node of the HA cluster will keep logs of all nodes, the administrator should access any node and acquire logs of all nodes, as long as no abnormality occurs in all nodes. Will be able to Also, the possibility of log loss due to a failure of the data storage device is reduced.

(Other embodiments)
Each embodiment described above may be further modified as follows.

First, in each embodiment described above, a log is stored in a heartbeat packet and transmitted to each node. However, when a large number of cluster logs are output instantaneously, it is difficult to transmit all the logs by one heartbeat communication. Therefore, the output log is stored in a temporary area of the main storage device, the log is divided into a plurality of groups, and the log is dispersed and stored in subsequent heartbeat packets and stored in other nodes. There is a way to expand.

That is, when the internal log information of a predetermined amount or more is generated within a predetermined time, the transmitting unit divides the generated internal log information into a plurality of partial logs, and a portion of the plurality of partial logs Embedded in the first heartbeat signal and transmitted to the external transmission destination device, and the rest of the plurality of partial logs are embedded in the subsequent first heartbeat signal and transmitted to the external transmission destination device. Good.

Thus, when a large amount of internal log information is generated, log transmission timings can be dispersed, and communication load can be reduced. In this case, the time when each node outputs the log may be different from the time when the log is received due to heartbeat. However, in the present embodiment, since each node holds the logs of all the nodes in the main storage device, it is possible to centrally manage the logs regardless of the timing at which the logs are received. Further, since the event occurrence time and the like are originally recorded in the detailed log information transmitted in the present embodiment, it is not affected by the heartbeat reception time.

In each of the above-described embodiments, the condition for outputting the log held by each node in the main storage device to the data storage device is the change in the number of operating nodes in the HA cluster system. However, there are conceivable applications such as outputting a log when the log size of the main storage device exceeds the set value or when the resource usage of the system increases.

That is, when the predetermined condition is satisfied, the log control unit may delete part of the log indicating the normal state among the internal log information and the external log information stored in the primary storage device. . In this way, it is possible to secure a memory free space by deleting logs of low importance from the memory.

Furthermore, in the second and third embodiments, the operation in the case of two and four nodes is described. However, the number of nodes is a variable value, and the configuration of two nodes can be applied to the configuration of several tens of nodes. However, when the present embodiment is applied to an HA cluster system configured with several tens of nodes, each node receives logs for several tens of nodes. Therefore, there is a risk that network load may occur on all nodes. In particular, the network load on the task operation node is a serious problem. Therefore, in the case of a large-scale HA cluster system consisting of dozens of nodes, it is assumed that the log deployment by heartbeat is deployed only from the business operation node to the standby node of the system switchover destination or from the standby node to the standby node. It is also good.

For example, when the second embodiment is improved, it is as follows. That is, it further comprises a third node having a third control unit and a third storage unit, wherein the first node and the second node are standby systems, and the third node is an operating system. Then, the third control unit stores third log information, which is a log generated in the third node, in the third storage unit, and performs a survival notification of the third node. The third log information is embedded in the third heartbeat signal, and the third heartbeat signal is transmitted to the first node and the second node. Each of the first control unit and the second control unit receives the third heartbeat signal from the third node, and extracts the third log information from the third heartbeat signal. The extracted third log information may be stored in the first storage unit or the second storage unit.

As a result, the network load on the task operation node by applying the present embodiment is only log expansion of the own node, and log expansion can be performed without occupying the network band of the task operation node. Therefore, when acquiring the logs of all the nodes of the HA cluster system to which the method of this embodiment is applied, it is possible to acquire from the standby node. Also, the communication load can be reduced.

As described above, in each of the above-described embodiments, the log is expanded according to the heartbeat communication that is essential for the operation of the HA cluster system, so that all the logs can be efficiently and efficiently added without adding a resource for log management. It can be expanded to nodes.

Further, although the present invention has been described as the hardware configuration in the above embodiment, the present invention is not limited to this. The present invention can also realize arbitrary processing by causing a CPU to execute a computer program.

FIG. 16 is a block diagram illustrating the hardware configuration of a computer apparatus 400 that implements the information processing apparatus according to the present disclosure. The computer device 400 includes a central processing unit (CPU) 401, a read only memory (ROM) 402, a random access memory (RAM) 403, a storage device 404, a drive device 405, a communication interface 406, and an input / output interface. And 407. The information processing apparatus according to the present disclosure may be realized by the configuration (or a part thereof) shown in FIG.

The CPU 401 executes the program 408 using the RAM 403. The program 408 may be stored in the ROM 402. The program 408 may be recorded on a recording medium 409 such as a flash memory and read by the drive device 405, or may be transmitted from an external device via the network 410. The communication interface 406 exchanges data with an external device via the network 410. The input / output interface 407 exchanges data with peripheral devices (such as input devices and display devices). The communication interface 406 and the input / output interface 407 can function as means for acquiring or outputting data.

Note that the information processing apparatus according to the present disclosure may be configured by a single circuit (processor or the like), or may be configured by a combination of a plurality of circuits. The circuitry referred to here may be either special purpose or general purpose.

In the above-mentioned example, the program can be stored using various types of non-transitory computer readable media and supplied to a computer. Non-transitory computer readable media include tangible storage media of various types. Examples of non-transitory computer readable media are magnetic recording media (eg flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (eg magneto-optical disks), CD (Compact Disk) -ROM, CD-R, CD -R / W, DVD (Digital Versatile Disc), BD (Blu-ray (registered trademark) Disc), semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM) Including. Also, the programs may be supplied to the computer by various types of transitory computer readable media. Examples of temporary computer readable media include electrical signals, light signals, and electromagnetic waves. The temporary computer readable medium can provide the program to the computer via a wired communication path such as electric wire and optical fiber, or a wireless communication path.

Some or all of the above embodiments may be described as in the following appendices, but are not limited to the following.

(Supplementary Note 1)
A log control unit that stores internal log information, which is a log generated internally, in a storage unit;
A transmitting unit that embeds the internal log information in a first heartbeat signal for notifying the existence of the self, and transmits the first heartbeat signal to an external transmission destination device;
Receive external log information, which is a log generated by an external transmission source device, and receive from the external transmission source device a second heartbeat signal for performing survival notification of the external transmission source device With the department,
The receiving unit is
Extracting the external log information from the second heartbeat signal;
The log control unit
An information processing apparatus, which stores the extracted external log information in the storage unit.

(Supplementary Note 2)
The internal log information is generated in text format,
The log control unit converts the internal log information into a binary format, and stores the internal log information converted into the binary format in the storage unit.
The transmission unit embeds the internal log information converted into the binary format in the first heartbeat signal, and transmits the first heartbeat signal to the external transmission destination device.
The second heartbeat signal is embedded with the external log information converted from text format to binary format;
The receiving unit extracts the external log information in binary form from the second heartbeat signal,
The information processing apparatus according to appendix 1, wherein the log control unit stores the external log information extracted in the binary format in the storage unit.

(Supplementary Note 3)
The storage unit includes a primary storage device.
The log control unit
Storing the internal log information converted to the binary format in the primary storage device;
Storing the external log information extracted in the binary format in the primary storage device;
The information processing apparatus according to Appendix 2, wherein the internal log information or the external log information is read from the primary storage device according to a request, converted into a text format, and output.

(Supplementary Note 4)
The storage unit further includes a secondary storage device,
The log control unit
According to the operation status of the external transmission source device, the internal log information or the external log information is read from the primary storage device and converted into a text format,
The internal log information or the external log information converted into the text format is stored in the secondary storage device,
The information processing apparatus according to claim 3, wherein the read internal log information or the external log information is deleted from the primary storage device.

(Supplementary Note 5)
The log control unit
The information processing apparatus according to Appendix 3 or 4, wherein a part of a log indicating a normal state among the internal log information and the external log information stored in the primary storage device is deleted when a predetermined condition is satisfied.

(Supplementary Note 6)
The transmission unit is
When the internal log information of a predetermined amount or more is generated within a predetermined time, the generated internal log information is divided into a plurality of partial logs,
Embedding part of the plurality of partial logs in the first heartbeat signal and transmitting it to the external destination device;
The information processing apparatus according to any one of appendices 1 to 5, wherein the rest of the plurality of partial logs are embedded in the subsequent first heartbeat signal and transmitted to the external destination apparatus.

(Appendix 7)
A first node having a first control unit and a first storage unit;
A second node having a second control unit and a second storage unit;
The first control unit is
Storing first log information, which is a log generated in the first node, in the first storage unit;
Embedding the first log information in a first heartbeat signal for notifying the existence of the first node;
Sending the first heartbeat signal to the second node;
The second control unit is
Receiving the first heartbeat signal from the first node;
Extracting the first log information from the first heartbeat signal;
Storing the extracted first log information and second log information, which is a log generated in the second node, in the second storage unit;
Embedding the second log information in a second heartbeat signal for notifying the existence of the second node;
Sending the second heartbeat signal to the first node;
The first control unit is
Receiving the second heartbeat signal from the second node;
Extracting the second log information from the second heartbeat signal;
Storing the extracted second log information in the first storage unit;
Log management system.

(Supplementary Note 8)
And a third node having a third control unit and a third storage unit,
The first node and the second node are standby systems,
The third node is an operating system,
The third control unit is
Storing third log information, which is a log generated in the third node, in the third storage unit;
The third log information is embedded in a third heartbeat signal for notifying the survival of the third node.
Transmitting the third heartbeat signal to the first node and the second node;
Each of the first control unit and the second control unit is
Receiving the third heartbeat signal from the third node;
Extracting the third log information from the third heartbeat signal;
The log management system according to Appendix 7, wherein the extracted third log information is stored in the first storage unit or the second storage unit.

(Appendix 9)
Store internal log information, which is an internally generated log, in the storage unit,
Embedding the internal log information in the first heartbeat signal to notify the survival of the self,
Sending the first heartbeat signal to an external destination device;
External log information, which is a log generated by an external transmission source device, is embedded, and a second heartbeat signal for performing survival notification of the external transmission source device is received from the external transmission source device;
Extracting the external log information from the second heartbeat signal;
Storing the extracted external log information in the storage unit;
Log management method.

(Supplementary Note 10)
A process of storing internal log information, which is an internally generated log, in a storage unit;
Embedding the internal log information in a first heartbeat signal for notifying of the existence of the user;
A process of transmitting the first heartbeat signal to an external transmission destination device;
Processing in which external log information, which is a log generated by an external transmission source device, is embedded, and a second heartbeat signal for performing survival notification of the external transmission source device is received from the external transmission source device When,
A process of extracting the external log information from the second heartbeat signal;
A process of storing the extracted external log information in the storage unit;
Log management program that causes a computer to run.

(Supplementary Note 11)
A first node having a first storage unit;
Storing first log information, which is a log generated in the first node, in the first storage unit;
Embedding the first log information in a first heartbeat signal for notifying the existence of the first node;
Transmitting the first heartbeat signal to a second node having a second storage unit;
The second node is
Receiving the first heartbeat signal from the first node;
Extracting the first log information from the first heartbeat signal;
Storing the extracted first log information and second log information, which is a log generated in the second node, in the second storage unit;
Embedding the second log information in a second heartbeat signal for notifying the existence of the second node;
Sending the second heartbeat signal to the first node;
The first node is
Receiving the second heartbeat signal from the second node;
Extracting the second log information from the second heartbeat signal;
Storing the extracted second log information in the first storage unit;
Log management method.

(Supplementary Note 12)
Comprising a first node and a second node,
The first node is
Embedding first log information, which is a log generated in the first node, in a first heartbeat signal for notifying the survival of the first node;
Sending the first heartbeat signal to the second node;
The second node is
Receiving the first heartbeat signal from the first node;
Extracting the first log information from the first heartbeat signal;
Storing the extracted first log information and second log information, which is a log generated in the second node, in a storage unit of the second node;
Log management system.

(Supplementary Note 13)
The second node is
Embedding the second log information in a second heartbeat signal for notifying the existence of the second node;
Sending the second heartbeat signal to the first node;
The first node is
Receiving the second heartbeat signal from the second node;
Extracting the second log information from the second heartbeat signal;
Storing the extracted second log information and the first log information in a storage unit of the first node;
The log management system according to appendix 12.

The present invention has been described above by taking the above-described embodiment as an exemplary example. However, the present invention is not limited to the embodiments described above. That is, the present invention can apply various aspects that can be understood by those skilled in the art within the scope of the present invention.

This application claims priority based on Japanese Patent Application No. 2015-023840 filed on February 10, 2015, the entire disclosure of which is incorporated herein.

1000 information processing apparatus 1100 storage unit 1110 internal log information 1120 external log information 1200 transmitter 1300 log controller 1400 receiver 2000 transmission destination device 3000 sender device 4100 first heartbeat signal 4200 second heartbeat signal 5000 log management System 5100 first node 5110 first control unit 5120 first storage unit 5121 first log information 5122 second log information 5200 second node 5210 second control unit 5220 second storage unit 5221 first log Information 5222 Second log information 5310 First heartbeat signal 5320 Second heartbeat signal 1 HA cluster system 10 node 11 clusterware 12 log management unit 13 data storage unit 14 main storage unit 20 node 21 cluster A 22 log management unit 23 data storage device 24 main storage device 30 node 31 clusterware 32 log management unit 33 data storage device 34 main storage device 40 node 41 clusterware 42 log management unit 43 data storage device 44 main storage device 50 network switch 100 Node 101 Clusterware 102 Heartbeat Reception Unit 103 Heartbeat Transmission Unit 104 Cluster Control Unit 105 Log Management Unit 106 Log Format Conversion Unit 107 Log Dynamic Control Unit 108 Data Storage Device 1081 Text Format Log 109 Main Storage Device 1091 Binary Format Log

Claims

Log control means for storing internal log information, which is an internally generated log, in a storage means;
Transmission means for embedding the internal log information in a first heartbeat signal for notifying the existence of the self, and transmitting the first heartbeat signal to an external transmission destination device;
Receive external log information, which is a log generated by an external transmission source device, and receive from the external transmission source device a second heartbeat signal for performing survival notification of the external transmission source device Means, and
The receiving means is
Extracting the external log information from the second heartbeat signal;
The log control means
An information processing apparatus, which stores the extracted external log information in the storage unit.
The internal log information is generated in text format,
The log control unit converts the internal log information into a binary format, and stores the internal log information converted into the binary format in the storage unit.
The transmission means embeds the internal log information converted into the binary format into the first heartbeat signal, and transmits the first heartbeat signal to the external transmission destination device.
The second heartbeat signal is embedded with the external log information converted from text format to binary format;
The receiving means extracts the external log information in binary form from the second heartbeat signal,
The information processing apparatus according to claim 1, wherein the log control unit stores the external log information extracted in the binary format in the storage unit.
The storage means includes a primary storage device.
The log control means
Storing the internal log information converted to the binary format in the primary storage device;
Storing the external log information extracted in the binary format in the primary storage device;
The information processing apparatus according to claim 2, wherein the internal log information or the external log information is read from the primary storage device according to a request, converted into a text format, and output.
The storage means further includes a secondary storage device,
The log control means
According to the operation status of the external transmission source device, the internal log information or the external log information is read from the primary storage device and converted into a text format,
The internal log information or the external log information converted into the text format is stored in the secondary storage device,
The information processing apparatus according to claim 3, wherein the read internal log information or the external log information is deleted from the primary storage device.
The log control means
The information processing apparatus according to claim 3, wherein when the predetermined condition is satisfied, a part of the log indicating a normal state is deleted among the internal log information and the external log information stored in the primary storage device.
The transmission means is
When the internal log information of a predetermined amount or more is generated within a predetermined time, the generated internal log information is divided into a plurality of partial logs,
Embedding part of the plurality of partial logs in the first heartbeat signal and transmitting it to the external destination device;
The information processing apparatus according to claim 1, wherein the remaining part of the plurality of partial logs is embedded in the subsequent first heartbeat signal and transmitted to the external transmission destination device.
A first node having a first control means and a first storage means;
A second node having a second control means and a second storage means,
The first control means is
Storing first log information, which is a log generated in the first node, in the first storage unit;
Embedding the first log information in a first heartbeat signal for notifying the existence of the first node;
Sending the first heartbeat signal to the second node;
The second control means is
Receiving the first heartbeat signal from the first node;
Extracting the first log information from the first heartbeat signal;
Storing the extracted first log information and second log information, which is a log generated in the second node, in the second storage unit;
Embedding the second log information in a second heartbeat signal for notifying the existence of the second node;
Sending the second heartbeat signal to the first node;
The first control means is
Receiving the second heartbeat signal from the second node;
Extracting the second log information from the second heartbeat signal;
Storing the extracted second log information in the first storage unit;
Log management system.
And a third node having a third control means and a third storage means,
The first node and the second node are standby systems,
The third node is an operating system,
The third control means is
Storing third log information, which is a log generated in the third node, in the third storage unit;
The third log information is embedded in a third heartbeat signal for notifying the survival of the third node.
Transmitting the third heartbeat signal to the first node and the second node;
Each of the first control means and the second control means is
Receiving the third heartbeat signal from the third node;
Extracting the third log information from the third heartbeat signal;
The log management system according to claim 7, wherein the extracted third log information is stored in the first storage unit or the second storage unit.
Store internal log information, which is an internally generated log, in storage means,
Embedding the internal log information in the first heartbeat signal to notify the survival of the self,
Sending the first heartbeat signal to an external destination device;
External log information, which is a log generated by an external transmission source device, is embedded, and a second heartbeat signal for performing survival notification of the external transmission source device is received from the external transmission source device;
Extracting the external log information from the second heartbeat signal;
Storing the extracted external log information in the storage unit;
Log management method.
A process of storing internal log information, which is an internally generated log, in a storage unit;
Embedding the internal log information in a first heartbeat signal for notifying of the existence of the user;
A process of transmitting the first heartbeat signal to an external transmission destination device;
Processing in which external log information, which is a log generated by an external transmission source device, is embedded, and a second heartbeat signal for performing survival notification of the external transmission source device is received from the external transmission source device When,
A process of extracting the external log information from the second heartbeat signal;
A process of storing the extracted external log information in the storage unit;
The program recording medium which stored the program for making a computer perform.
A first node having a first storage unit;
Storing first log information, which is a log generated in the first node, in the first storage unit;
Embedding the first log information in a first heartbeat signal for notifying the existence of the first node;
Transmitting the first heartbeat signal to a second node having a second storage unit;
The second node is
Receiving the first heartbeat signal from the first node;
Extracting the first log information from the first heartbeat signal;
Storing the extracted first log information and second log information, which is a log generated in the second node, in the second storage unit;
Embedding the second log information in a second heartbeat signal for notifying the existence of the second node;
Sending the second heartbeat signal to the first node;
The first node is
Receiving the second heartbeat signal from the second node;
Extracting the second log information from the second heartbeat signal;
Storing the extracted second log information in the first storage unit;
Log management method.
Comprising a first node and a second node,
The first node is
Embedding first log information, which is a log generated in the first node, in a first heartbeat signal for notifying the survival of the first node;
Sending the first heartbeat signal to the second node;
The second node is
Receiving the first heartbeat signal from the first node;
Extracting the first log information from the first heartbeat signal;
Storing the extracted first log information and second log information, which is a log generated in the second node, in a storage unit of the second node;
Log management system.
The second node is
Embedding the second log information in a second heartbeat signal for notifying the existence of the second node;
Sending the second heartbeat signal to the first node;
The first node is
Receiving the second heartbeat signal from the second node;
Extracting the second log information from the second heartbeat signal;
Storing the extracted second log information and the first log information in a storage unit of the first node;
A log management system according to claim 12.