JP2012506582A - 分散データストレージ - Google Patents
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
- G06F15/163—Interprocessor communication
- G06F15/173—Interprocessor communication using an interconnection network, e.g. matrix, shuffle, pyramid, star, snowflake
- G06F15/17306—Intercommunication techniques
- G06F15/17331—Distributed shared memory [DSM], e.g. remote direct memory access [RDMA]
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06F11/1658—Data re-synchronization of a redundant component, or initial sync of replacement, additional or spare unit
- G06F11/1662—Data re-synchronization of a redundant component, or initial sync of replacement, additional or spare unit the resynchronized component or unit being a persistent storage device
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06F11/2053—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 persistent mass storage functionality or persistent mass storage control functionality is redundant
- G06F11/2094—Redundant storage or storage space
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/18—File system types
- G06F16/182—Distributed file systems
- G06F16/184—Distributed file systems implemented as replicated file system
- G06F16/1844—Management specifically adapted to replicated file systems
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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
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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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
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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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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- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Multi Processors (AREA)
Abstract
【選択図】図1
Description
Claims (18)
- 複数のデータストレージノードを有するデータストレージシステム内のデータを維持管理する方法であって、前記データストレージシステムのストレージノードによって利用される方法において、
前記システム内のその他のストレージノードのステータスを、前記データストレージシステムにおいて実行される書込み操作(65,67,69)と共に監視するステップ(59)と、
前記監視に基づいて、前記データストレージシステムのノード間におけるデータ複製の必要性を示唆する前記データストレージシステムの状態を検知するステップ(51)と、
そのような状態が検知された場合に、複製プロセスを開始するステップ(53)とを備え、前記複製プロセスが、複数のストレージノードに、どのストレージノードが特定のデータを格納しているのかを問い合わせるマルチキャストメッセージを送信するステップを含むことを特徴とする方法。 - 請求項1に記載の方法において、
監視するステップが、前記システム内のその他のストレージノードからのハートビート信号を聴取するステップ(59)を含み、複製の必要性を示唆する状態が、ストレージノードの故障であることを特徴とする方法。 - 請求項1または2に記載の方法において、
前記データがファイルを含み、前記状態が、ファイル削除またはファイル不一致の一方であることを特徴とする方法。 - 請求項1乃至3の何れか1項に記載の方法において、
複製リストが保持され、この複製リストが、複製の必要なファイルを含むことを特徴とする方法。 - 請求項4に記載の方法において、
前記複製リストが優先度を含むことを特徴とする方法。 - 請求項1乃至5の何れか1項に記載の方法において、
前記複製プロセスが、
前記特定のデータを保有するストレージノードからのレスポンスを受信するステップと、
十分な数のストレージノード上に前記特定のデータが格納されているか否かを判定するステップと、
格納されていない場合に、少なくとも1の追加のストレージノードを選択してそのストレージノードに前記特定のデータを送信するステップとをさらに備えることを特徴とする方法。 - 請求項6に記載の方法において、
旧バージョンを含むストレージノード上の前記特定のデータを更新するステップをさらに備えることを特徴とする方法。 - 請求項6または7に記載の方法において、
前記システム内のすべてのストレージデバイスの間で、複製すべきファイルのマスターシップの取得をストレージデバイスが試みることから、前記複製プロセスが開始することを特徴とする方法。 - 請求項1乃至8の何れか1項に記載の方法において、
監視するステップが、前記データストレージシステムで実行される読出し操作を監視するステップ(63)をさらに含むことを特徴とする方法。 - 複数のデータストレージノードを有するデータストレージシステム内のデータを維持管理するデータストレージノードであって、
前記システム内のその他のストレージノードのステータスを、前記データストレージシステムにおいて実行される書込み操作と共に監視する手段と、
前記監視に基づいて、前記データストレージシステムのノード間におけるデータ複製の必要性を示唆する前記データストレージシステムの状態を検知する手段と、
そのような状態が検知された場合に、複製プロセスを開始する手段とを備え、前記複製プロセスが、複数のストレージノードに、どのストレージノードが特定のデータを格納しているのかを問い合わせるマルチキャストメッセージを送信することを含むことを特徴とするデータストレージノード。 - 複数のデータストレージノードを有するデータストレージシステムにデータを書き込む方法であって、前記データストレージシステム内のデータにアクセスするアプリケーションを起動するサーバで用いられる方法において、
前記ストレージノードの複数にマルチキャストストレージクエリを送信するステップ(41)と、
前記ストレージノードのサブセットから、各ストレージノードの地理的な位置に関する地理データを含む複数のレスポンスを受信するステップ(43)と、
前記レスポンスに基づいて、前記サブセット中の少なくとも2のストレージノードを選択するステップ(45)と、
選択したストレージノードに、データと、当該データに対応するデータ識別子とを送信するステップ(47)とを備えることを特徴とする方法。 - 請求項11に記載の方法において、
前記地理的な位置が、問題のストレージノードの緯度および経度を含むことを特徴とする方法。 - 請求項12に記載の方法において、
前記レスポンスが、問題のストレージノードのシステム年齢をさらに含むことを特徴とする方法。 - 請求項12または13に記載の方法において、
前記レスポンスが、問題のストレージノードのシステム負荷をさらに含むことを特徴とする方法。 - 請求項12乃至14の何れか1項に記載の方法において、
前記マルチキャストストレージクエリが、保存されるデータを特定するデータ識別子を含むことを特徴とする方法。 - 請求項12乃至15の何れか1項に記載の方法において、
少なくとも3のノードが選択されることを特徴とする方法。 - 請求項12乃至16の何れか1項に記載の方法において、
データの格納に成功したストレージノードのリストが、選択したストレージノードに送信されることを特徴とする方法。 - 複数のデータストレージノードを有するデータストレージシステムにデータを書き込むのに適したサーバであって、
前記ストレージノードの複数にマルチキャストストレージクエリを送信する手段と、
前記ストレージノードのサブセットから、各ストレージノードの地理的な位置に関する地理データを含む複数のレスポンスを受信する手段と、
前記レスポンスに基づいて、前記サブセット中の少なくとも2のストレージノードを選択する手段と、
選択したストレージノードに、データと、当該データに対応するデータ識別子とを送信する手段とを備えることを特徴とするサーバ。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0802277-4 | 2008-10-24 | ||
| SE0802277A SE533007C2 (sv) | 2008-10-24 | 2008-10-24 | Distribuerad datalagring |
| PCT/EP2009/063796 WO2010046393A2 (en) | 2008-10-24 | 2009-10-21 | Distributed data storage |
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| Publication Number | Publication Date |
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| JP2012506582A true JP2012506582A (ja) | 2012-03-15 |
| JP5553364B2 JP5553364B2 (ja) | 2014-07-16 |
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| JP2011532619A Active JP5553364B2 (ja) | 2008-10-24 | 2009-10-21 | 分散データストレージ |
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| US (7) | US8688630B2 (ja) |
| EP (3) | EP2908257B1 (ja) |
| JP (1) | JP5553364B2 (ja) |
| KR (1) | KR101635238B1 (ja) |
| CN (1) | CN102301367B (ja) |
| AU (1) | AU2009306386B2 (ja) |
| BR (1) | BRPI0914437A2 (ja) |
| CA (1) | CA2741477C (ja) |
| DK (1) | DK2342663T3 (ja) |
| EA (1) | EA201100545A1 (ja) |
| ES (1) | ES2538129T3 (ja) |
| MX (1) | MX2011004240A (ja) |
| SE (1) | SE533007C2 (ja) |
| WO (1) | WO2010046393A2 (ja) |
| ZA (1) | ZA201103754B (ja) |
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