JP4461262B2 - コンピュータ障害発生時に複数のコンピュータの配列を操作する方法 - Google Patents
コンピュータ障害発生時に複数のコンピュータの配列を操作する方法 Download PDFInfo
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- JP4461262B2 JP4461262B2 JP2006549844A JP2006549844A JP4461262B2 JP 4461262 B2 JP4461262 B2 JP 4461262B2 JP 2006549844 A JP2006549844 A JP 2006549844A JP 2006549844 A JP2006549844 A JP 2006549844A JP 4461262 B2 JP4461262 B2 JP 4461262B2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5061—Partitioning or combining of resources
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/142—Reconfiguring to eliminate the error
- G06F11/143—Reconfiguring to eliminate the error with loss of software functionality
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1438—Restarting or rejuvenating
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
- G06F11/2023—Failover techniques
- G06F11/2025—Failover techniques using centralised failover control functionality
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
- G06F11/2038—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant with a single idle spare processing component
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1004—Server selection for load balancing
- H04L67/1008—Server selection for load balancing based on parameters of servers, e.g. available memory or workload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1029—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers using data related to the state of servers by a load balancer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection
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- Software Systems (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- Hardware Redundancy (AREA)
- Debugging And Monitoring (AREA)
- Multi Processors (AREA)
Description
コンピュータの個々は比較的小さく安価な装置であるため、コスト的な見地より、コンピュータの障害発生後、影響を受けるソフトウェアユニット、すなわち、サービス群及びアプリケーション群を、例えば、正常なオペレーションを復旧する目的で、移転させるような、一又はそれ以上の待機系コンピュータを用意することは問題にはならない。
5 監視用コンピュータ
6 配線
11..19 方法のステップ
OS1,OS2,OS3 オペレーションシステム
A1,A2,A3,A4 アプリケーション
D1,D2,D3,D4,D5 サービス
Claims (8)
- 多様なソフトウェアユニットを実行するよう設定された複数のコンピュータと、前記コンピュータのそれぞれの監視と前記複数のコンピュータ間の仲介を行う、追加された監視用コンピュータ、の配列と、前記コンピュータのそれぞれが定期的に監視される状態、を有するサーバファームの操作方法であって、
前記ソフトウェアユニットには、その重要度に応じた重みが割り当てられ、
前記複数のコンピュータのいずれかに障害が発生した際に、監視時点で、前記複数のコンピュータのうちどのコンピュータが故障し、それによりどのソフトウェアユニットが影響を受けたかの情報収集が前記監視用コンピュータにより行われ、
前記障害により影響を受けたソフトウェアユニットを他のコンピュータに転送する、多様な、即ち、少なくとも二つの、選択可能な転送シナリオが前記監視用コンピュータにより決定され、当該決定された転送シナリオのそれぞれについて、どのコンピュータにどのソフトウェアユニットが転送されたかが前記監視用コンピュータにより表示され、
前記転送シナリオのそれぞれは、前記ソフトウェアユニットの前記重みを利用して前記監視用コンピュータにより査定され、
前記転送シナリオのうちのいずれか一つが、前記査定の結果に基づいて前記監視用コンピュータにより選択され、
前記選択された転送シナリオが前記他のコンピュータにより実行され、
前記重みには、複数の属性が含まれ、
第一の属性(強制終了ライセンス)は、前記空き容量を生成するために、他の能動的なソフトウェアユニットを終了させる権限の割合を特定し、
第二の属性(終了期限)は、障害の発生したコンピュータから転送を行うための他のソフトウェアの同意による終了要求に対する抵抗の大きさを特定する、
ことを特徴とするサーバファームの操作方法。 - 前記障害により影響を受けたソフトウェアユニットは、前記影響を受けたソフトウェアユニットを引き継ぐために十分な空き容量を有する予備のコンピュータが利用可能である場合、当該予備のコンピュータに転送される、
ことを特徴とする請求項1に記載の方法。 - 前記転送シナリオを決定するプロセスには、障害が発生したコンピュータからソフトウェアユニットを転送する空き容量を生成するために、能動的なソフトウェアユニットが終了されることが含まれる、
ことを特徴とする請求項1に記載の方法。 - 前記コンピュータ配列において能動的であり、前記障害により影響を受けたソフトウェアユニットの前記属性が考慮されることにより、全体的に最適化された転送シナリオが前記監視用コンピュータにより決定される、
ことを特徴とする請求項1乃至3のいずれか一項に記載の方法。 - 選択可能な転送シナリオの中から最適な転送シナリオが決定される前に、前記選択可能な転送シナリオが、あらかじめ定められた判定基準に従って前記監視用コンピュータにより並び替えられる、
ことを特徴とする請求項4に記載の方法。 - 前記選択可能な転送シナリオから最適な転送シナリオを決定するために、グリーディ(greedy)アルゴリズムが利用される、
ことを特徴とする請求項4又は5に記載の方法。 - 前記ソフトウェアユニットが、それぞれオペレーションシステムとアプリケーションを有する、
ことを特徴とする請求項1乃至6のいずれか一項に記載の方法。 - 配列が、請求項1乃至7のいずれか一項に記載の方法を実行するように設定されている、ことを特徴とする、アプリケーションを実行する複数のコンピュータと、前記コンピュータの監視を行う監視用コンピュータの配列。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004005128A DE102004005128B3 (de) | 2004-02-02 | 2004-02-02 | Anordnung mehrerer Rechner und Verfahren zum Betreiben einer Anordnung mehrerer Rechner bei einem Rechnerausfall |
PCT/DE2004/001862 WO2005073852A1 (de) | 2004-02-02 | 2004-08-20 | Verfahren zum betreiben einer anordnung mehrerer rechner bei einem rechnerausfall |
Publications (2)
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JP2007520003A JP2007520003A (ja) | 2007-07-19 |
JP4461262B2 true JP4461262B2 (ja) | 2010-05-12 |
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JP2006549844A Expired - Fee Related JP4461262B2 (ja) | 2004-02-02 | 2004-08-20 | コンピュータ障害発生時に複数のコンピュータの配列を操作する方法 |
Country Status (6)
Country | Link |
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US (1) | US7574620B2 (ja) |
EP (1) | EP1711892B1 (ja) |
JP (1) | JP4461262B2 (ja) |
AT (1) | ATE423352T1 (ja) |
DE (1) | DE102004005128B3 (ja) |
WO (1) | WO2005073852A1 (ja) |
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US7523344B2 (en) * | 2006-05-08 | 2009-04-21 | Sun Microsystems, Inc. | Method and apparatus for facilitating process migration |
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2004
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- 2004-08-20 EP EP04762702A patent/EP1711892B1/de not_active Not-in-force
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US7574620B2 (en) | 2009-08-11 |
JP2007520003A (ja) | 2007-07-19 |
EP1711892B1 (de) | 2009-02-18 |
US20070038885A1 (en) | 2007-02-15 |
WO2005073852A1 (de) | 2005-08-11 |
EP1711892A1 (de) | 2006-10-18 |
ATE423352T1 (de) | 2009-03-15 |
DE102004005128B3 (de) | 2005-01-05 |
WO2005073852A8 (de) | 2006-08-24 |
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