JPS633361A - Inter-computer monitoring method - Google Patents
Inter-computer monitoring methodInfo
- Publication number
- JPS633361A JPS633361A JP61144880A JP14488086A JPS633361A JP S633361 A JPS633361 A JP S633361A JP 61144880 A JP61144880 A JP 61144880A JP 14488086 A JP14488086 A JP 14488086A JP S633361 A JPS633361 A JP S633361A
- Authority
- JP
- Japan
- Prior art keywords
- computer
- computers
- abnormality
- message
- receiving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 9
- 238000004891 communication Methods 0.000 claims abstract description 17
- 230000005856 abnormality Effects 0.000 claims abstract description 15
- 230000002159 abnormal effect Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、複数の計算機で構成される計算機システムに
係り、特に相互にメツセージ交換を行う網システムに好
適な計算機間の監視方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a computer system composed of a plurality of computers, and particularly to a monitoring method between computers suitable for a network system that exchanges messages with each other.
従来の計算機関監視方法は、特開昭５８−４５０５３号
公報に記載のように、前記応答メツセージが許容時間以
内に返ってこなかった時に、該相手計算機に停止メツセ
ージを送信するとともに自計算機内に該相手計算機異常
を記憶する方法が知られている。As described in Japanese Unexamined Patent Publication No. 58-45053, the conventional computer monitoring method, when the response message is not returned within a permissible time, sends a stop message to the other computer and also sends a message to the computer itself. A method of storing the abnormality of the other party's computer is known.
上記従来技術は、相手計算機の他計算機への異常の波及
を、自計算機から相手計算機に対し停止メツセージを送
信し、該相手計算機を停止させることで、防止しようと
するものである。The above-mentioned conventional technology attempts to prevent an abnormality from spreading from the other computer to other computers by sending a stop message from the own computer to the other computer and stopping the other computer.
しかし、前記異常状態は、概ね、相手計算機内のソフト
ウェア故障が原因と考えられ、停止メツセージ自体も相
手計算機で受は付けられない場合が多く、又、受は付け
られたとしても他計算機は、相手計算機が停止したこと
を認識していない。However, the above-mentioned abnormal state is generally considered to be caused by a software failure in the other computer, and the stop message itself is often not accepted by the other computer, and even if it is accepted, the other computer The other computer does not recognize that it has stopped.
本発明の目的は、上記従来技術の問題点を解消し、効果
的な計算機のメツセージ交換を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art described above and to provide an effective message exchange between computers.
上記目的は、自計算機が相手計算機の異常を検知したな
らば、直ちに自計算機と相手計算機との、通信路をしゃ
断するとともに、あらかじめ定義され起他計算機に対し
、相手計算機の異常を連絡し、更に他計算機は該相手計
算機への異常連絡を受信後、直ちに相手計算機との通信
路をしゃ断することにより、計算機網上、相手計算機を
隔離し異常の波及を防止することにより達成される。The above purpose is that when the own computer detects an abnormality in the other computer, it immediately cuts off the communication path between the own computer and the other computer, and also notifies the other computer defined in advance of the abnormality in the other computer. Furthermore, after receiving the abnormality notification to the other computer, the other computer immediately cuts off the communication path with the other computer, thereby isolating the other computer on the computer network and preventing the spread of the abnormality.
本発明は、次のように動作する。即ち、自計算機はあら
かじめ定義した周期で、あらかじめ定義した監視光相手
計算機に対し、状態監視メツセージを送信し、その応答
メツセージを受信し、該計算機関通信路が正常であるこ
とを確認する。又、あらかじめ定義した状態監視メツセ
ージ送信から応答メツセージ受信までの許容時間内に応
答メツセージが返ってこなければ、相手計算機異常を認
識し、該通信路をしゃ断すると共に、あらかじめ定義し
た関係する他計算機に、該相手計算機異常を連絡する。The invention operates as follows. That is, the own computer transmits a status monitoring message to a predefined monitoring optical destination computer at a predefined period, receives a response message, and confirms that the computer communication channel is normal. Also, if a response message is not returned within the permissible time from sending the predefined status monitoring message to receiving the response message, it will recognize an abnormality in the other computer, cut off the communication path, and communicate with other related computers defined in advance. , informs the other party of the computer error.
連絡を受けた他計算機はそれぞれ、該相手計算機との通
信路をしゃ断する。Each of the other computers that received the contact cuts off the communication path with the other computer.
それによって、計算機網システムは、自計算機切り離さ
れたとの同一認識の元に動作を開始することができる。Thereby, the computer network system can start operating based on the same recognition that its own computer has been disconnected.
以下、本発明の一実施例を説明する。 An embodiment of the present invention will be described below.
第１図は、本発明にかかる計算種間監視方法を３台の計
算機について示したものである。３台の計算機Ａ、Ｂ、
Ｃの構造は、同じものとする。FIG. 1 shows the calculation type monitoring method according to the present invention for three computers. Three computers A, B,
The structure of C is assumed to be the same.
計算機ＡＩＯのタイマー装置１７は、−定周期で監視用
送信装置１１を起動する。監視用送信装置は、起動され
ると計算機Ｂ２０状態監視用メツセージを、通信制御装
置１６を介して計算機Ｂ２０側に送信し、−定時間カウ
ントし、応答メツセージの受信を待つ、−方、計算機Ｂ
２０は、状態監視用メツセージを受信すると直ちに応答
メツセージを返す。計算機Ａ１０は、応答メツセージを
受信すると、時間カウントをリセットし終了する。しか
し、−定時間カウントするも、計算機Ｂ２０から応答メ
ツセージが返らなければ、タイムアウトとなり、計算機
ＡＩＯ〜計算機８２０間の通信路をしゃ断し、更に計算
機Ｂ２０とメツセ−ジ交換をしている計算機Ｃ３０に対
し、計ｎ、機Ｂ２０が異常であることを連絡する。−方
、計算機Ｃ３０は、計算機Ｂ２０異常の連絡を受信する
と直ちに計算機Ｃ３０〜計算機８２０間の通信路をしゃ
断する。The timer device 17 of the computer AIO starts the monitoring transmitting device 11 at regular intervals. When the monitoring transmitting device is activated, it transmits a message for monitoring the status of computer B20 to the computer B20 side via the communication control device 16, - counts a fixed period of time, and waits for receiving a response message.
20 immediately returns a response message upon receiving the status monitoring message. When the computer A10 receives the response message, it resets the time count and ends the process. However, if no response message is returned from computer B20 even after counting for a fixed period of time, a timeout occurs and the communication path between computer AIO and computer 820 is cut off. In response, a total of n calls were made to inform that machine B20 was abnormal. - On the other hand, upon receiving the notification that computer B20 is abnormal, computer C30 immediately cuts off the communication path between computer C30 and computer 820.
第２図に概略動作フロー、第３図、第４図にそれぞれ正
常な場合、異常の場合のタイムチャートを示す。FIG. 2 shows a schematic operation flow, and FIGS. 3 and 4 show time charts for normal and abnormal cases, respectively.
本実施例によれば、計算機システム上、異常な計算機Ｂ
２０を切り離すことにより、該異常計算機Ｂ２０の他計
算機Ｃ３０に対する異常波及を未然に防止できるという
効果がある。According to this embodiment, on the computer system, an abnormal computer B
20 has the effect of preventing the abnormality from spreading to other computers C30 from the abnormal computer B20.
本発明によれば、異常検知後、直ちに異常計算機を切り
尊すことができるので、フェイルセーフな計算機システ
ムとすることができるという効果がある。According to the present invention, since an abnormal computer can be immediately taken care of after an abnormality is detected, it is possible to provide a fail-safe computer system.
第１図は本発明の一実施例による計算種間監視方法を計
算機が３台の場合について具体的に示し゛視力法の概念
図、第３図は本発明に係る計算種間監視方法において、
相手計算機が正常な場合のタイムチャート、第４図は相
手計算機が異常な場合のタイムチャートである。
１０・・・計算機Ｘ、２ｏ・・・計算機Ｙ、３０・・計
算機２．１１・・・監視用送信装置、１２・・・監視用
受信装置、１３・・・業務用送信装置、１４・・・業務
用受信装置、１５・・・業務プログラム、１６・・・通
信制御装置、１〜３・・・通信路、５１，６１．７１・
・・送信線、５２・・・タイマー、５３，６３．７３・
・・受信線、第 １ 図
Ｌ Ｚ 口FIG. 1 is a conceptual diagram of a visual acuity method that specifically shows a calculation type monitoring method according to an embodiment of the present invention in the case of three computers.
FIG. 4 is a time chart when the other party's computer is normal, and FIG. 4 is a time chart when the other party's computer is abnormal. 10... Computer - Commercial reception device, 15... Business program, 16... Communication control device, 1 to 3... Communication path, 51, 61.71.
...Transmission line, 52...Timer, 53,63.73.
...Reception line, Figure 1 LZ port
Claims (1)
とを備え、該複数計算機間で相互にメッセージを交換し
あう計算機システムにおいて、各計算機が一定周期で、
あらかじめ定義された相手計算機に対し、状態監視メッ
セージを送信し該状態監視メッセージを受信して返され
る応答メッセージを受信する手段と、他計算機から送信
された自計算機状態監視メッセージを受信して応答メッ
セージを送信する手段と、状態監視メッセージ送信から
応答メッセージ受信までの時間を計測し、あらかじめ定
義された許容時間になつても該相手計算機からの応答メ
ッセージが受信されない場合は、該相手計算機に対する
通信路をしや断すると同時に該相手計算機と通信路をも
つ他計算機に対し、該相手計算機異常を連絡する手段と
、他計算機から異常計算機の連絡を受信し、該異常計算
機との通信路をしや断する手段を有することを特徴とす
る機算機間監視方法。1. In a computer system that includes a plurality of computers and a communication control device that connects the computers, and in which messages are exchanged between the plurality of computers, each computer periodically
A means for transmitting a status monitoring message to a predefined partner computer, receiving the status monitoring message, and receiving a response message returned, and a means for receiving a self-computer status monitoring message sent from another computer and receiving a response message. and a means for transmitting the status monitoring message and measuring the time from sending the status monitoring message to receiving the response message, and if a response message is not received from the target computer even after a predefined allowable time, a communication path to the target computer is established. At the same time, a means for notifying other computers that have a communication path with the other computer of the abnormality of the other computer, and a means for receiving notification of the abnormal computer from other computers and closing the communication path with the abnormal computer. 1. A method for monitoring between computers, comprising means for disconnecting the computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61144880A JPS633361A (en) | 1986-06-23 | 1986-06-23 | Inter-computer monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61144880A JPS633361A (en) | 1986-06-23 | 1986-06-23 | Inter-computer monitoring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS633361A true JPS633361A (en) | 1988-01-08 |
Family
ID=15372523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61144880A Pending JPS633361A (en) | 1986-06-23 | 1986-06-23 | Inter-computer monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS633361A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7243257B2 (en) | 2002-05-14 | 2007-07-10 | Nec Corporation | Computer system for preventing inter-node fault propagation |
-
1986
- 1986-06-23 JP JP61144880A patent/JPS633361A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7243257B2 (en) | 2002-05-14 | 2007-07-10 | Nec Corporation | Computer system for preventing inter-node fault propagation |
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