JP2015536001A - 連続クエリをチェーン接続するための機構 - Google Patents
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Abstract
Description
本願は、2013年3月14日に出願され「Mechanism to Chain Continuous Queries(連続クエリをチェーン接続するための機構)」と題された米国特許出願第13/830,735号(代理人整理番号88325−859821(128080US))、および、2012年9月28日に出願され「Real-time Business Event Analysis and Monitoring(リアルタイムビジネスイベント分析およびモニタリング)」と題された米国仮出願第61/707,641号に基づく優先権と利益を主張し、すべての目的のために各出願の内容全体を本明細書に引用により援用する。
従来のデータベースシステムにおいて、データは、通常はテーブルの形態で1つ以上のデータベースに格納される。格納されたデータはその後、構造化照会言語(SQL)等のデータ管理言語を用いてクエリされ操作される。たとえば、SQLクエリは、データベースに格納されているデータのうちの関連データを識別するために定義し実行することができる。したがって、SQLクエリは、データベースに格納されている有限集合のデータに対して実行される。さらに、SQLクエリが実行されるとき、SQLは有限のデータ集合に対して一度実行されて有限の静的結果をもたらす。このように、データベースは、格納されている有限のデータ集合に対してクエリが実行されるよう最適に作成されている。
連続クエリをチェーン接続するための技術が提供される。少なくとも1つの例に従うと、システムは、複数の命令を格納するためのメモリと、このメモリにアクセスするように構成された1つ以上のプロセッサとを含み得る。いくつかの例において、上記1つ以上のプロセッサは、上記複数の命令を実行することにより、第1の連続クエリの結果をデータオブジェクトに少なくとも格納するように構成し得る。第1の連続クエリは、ビジネスイベントデータ(たとえば、特定のビジネスエンティティに関連する動作、イベント、および/またはトランザクションのログ情報)を処理するように構成し得る。いくつかの例において、ビジネスイベントデータは、トランザクションを記録するように作成された記録を含み得るがこれに限定されない。この記録は場合によってはタイムスタンプを含み得る。加えて、いくつかの例において、上記1つ以上のプロセッサはさらに、上記複数の命令を実行することにより、第2の連続クエリを、データオブジェクトに格納されている結果に少なくとも一部基づいて、少なくとも処理するように構成し得る。さらに、いくつかの例において、上記1つ以上のプロセッサはさらに、上記複数の命令を実行することにより、データオブジェクトに格納されている結果を少なくとも監査するように構成し得る。データオブジェクトは、ストリームデータオブジェクトとして構成してもよく、場合によって、ストリームデータオブジェクトは、挿入動作しか実行しないように構成してもよい。加えて、いくつかの例において、上記1つ以上のプロセッサはさらに、複数の命令を実行することにより、データオブジェクトを可視化(visualization)に対して少なくともマッピングしてもよく、および/またはビジネスイベントデータに関連するユーザのユーザインターフェイスによる表示のために上記可視化を準備するように構成してもよい。いくつかの例において、第1の連続クエリの結果は、少なくとも第1の期間データオブジェクトに格納してもよく、第2の連続クエリは、第1の期間の終了の前に処理してもよく、および/または、第1の期間は、パフォーマンス基準に少なくとも一部基づいて決定してもよい。さらに、いくつかの例において、上記1つ以上のプロセッサはさらに、上記複数の命令を実行することにより、データオブジェクトの修正を少なくとも可能にするように構成してもよい。
以下の説明では、さまざまな実施形態が説明される。これら実施形態が十分に理解されるよう、特定の構成および詳細事項が説明のために記載される。しかしながら、これらの具体的な詳細事項がなくとも実施形態を実行し得ることも当業者には明らかであろう。さらに、記載されている実施形態が不明瞭にならぬよう、周知の特徴は省略または簡略化される場合がある。
(<timestamp_N>,<NVDA,4>)
(<timestamp_N+1>,<ORCL,62>)
(<timestamp_N+2>,<PCAR,38>)
(<timestamp_N+3>,<SPOT,53>)
(<timestamp_N+4>,<PDCO,44>)
(<timestamp_N+5>,<PTEN,50>)
...
上記ストリームにおけるストリーム要素(<timestamp_N+1>,<ORCL,62>)の場合、イベントは、「stock_symbol」(株式銘柄)および「stock_value」(株価)という属性を有する<ORCL,62>である。このストリーム要素に関連するタイムスタンプは「timestamp_N+1」である。このように、連続イベントストリームは、イベントのフローであり、各イベントは同じ一連の属性を有する。
・BI分析サーバに対するサービスをCQLエンジンゲートウェイとしてリモート処理する。
・イベントソース/シンクアダプタ。
・論理的SQLに加えてCQL拡張からデータ定義言語(DDL)を生成する。
・すべての種類の連続クエリおよび実装選択に対して統一されたモデルを提供する。
・メタデータを維持し再始動能力をサポートする。
・高アベイラビリティおよびスケーラビリティのサポート。
・この例において、クエリ1は、時間間隔ベースで(たとえば10分毎、20分毎等)、ムービングウィンドウに(たとえば最後の60分間、30分間等の移動平均実行時間)少なくとも一部基づいて、データを収集する。
・クエリの出力はDO1に入ってもよく、変更データ制御(CDC)が有効になりQ2が消費するようデルタをCQLエンジンに送ってもよい(たとえばパターン検出)。
・Q2が実行パターンマッチクエリである場合(すなわち、一行において少なくとも数回、傾向が毎回10%上昇し続ける)、オペレータに警告を出力してもよい。
この手法の場合、Q1は、イベントをメモリに保存する必要はない。その代わりに、数分(たとえば10分以上)毎に実行し得る計画的クエリとして構成してもよい。これによって、連続クエリの複合トポロジを、既存のクエリを再配置することなく動的に作成することができ、容易に拡張することができる。
Claims (26)
- システムであって、
複合イベント処理エンジンを用いて、イベントストリームに対する第1の連続クエリを処理するための手段と、
前記第1の連続クエリの結果を、前記複合イベント処理エンジンのデータオブジェクトに格納するための手段とを備え、前記第1の連続クエリは、前記イベントストリームのビジネスイベントデータを処理するように構成され、さらに、
前記複合イベント処理エンジンを用いて、第2の連続クエリを、前記データオブジェクトに格納されている結果に少なくとも一部基づいて処理するための手段を備える、システム。 - 前記データオブジェクトに格納されている結果を監査するための手段をさらに備える、請求項1に記載のシステム。
- 前記データオブジェクトは、ストリームデータオブジェクトとして構成される、請求項1または2に記載のシステム。
- 前記ストリームデータオブジェクトは、「挿入」動作しか実行しないように構成される、請求項3に記載のシステム。
- 前記データオブジェクトを可視化に対してマッピングするための手段をさらに備える、請求項1〜4のいずれか一項に記載のシステム。
- 前記ビジネスイベントデータに関連するユーザのユーザインターフェイスによる表示のために前記可視化を準備するための手段をさらに備える、請求項5に記載のシステム。
- 前記第1の連続クエリの結果は、少なくとも第1の期間前記データオブジェクトに格納される、請求項1〜6のいずれか一項に記載のシステム。
- 前記第2の連続クエリは、前記第1の期間の終了の前に処理される、請求項7に記載のシステム。
- 前記第1の期間は、パフォーマンス基準に少なくとも一部基づいて決定される、請求項7または8に記載のシステム。
- 前記データオブジェクトの修正を可能にするための手段をさらに備える、請求項1に記載のシステム。
- 前記データオブジェクトに格納されている結果は、前記第1の連続クエリのトポロジに関する情報を含む、請求項1に記載のシステム。
- 方法であって、
複合イベント処理エンジンを利用して、ユーザに関連するビジネスイベントデータに対する第1の連続クエリを初期化することにより、ある時間間隔の間、第1の結果を収集することと、
前記ユーザに関連するビジネスイベントデータを含むイベントストリームに対する前記第1の連続クエリを処理することと、
前記第1の結果を、前記複合イベント処理エンジンのデータオブジェクトとしてメモリに格納することと、
トリガを受けたことに少なくとも一部基づいて、前記データオブジェクトの第1の結果を第2の連続クエリに提示することと、
前記複合イベント処理エンジンを利用して、前記第2の連続クエリを、前記データオブジェクトの第1の結果に少なくとも一部基づいて処理することにより、第2の結果を識別することと、
前記第2の連続クエリからの第2の結果に少なくとも一部基づいて、警告をユーザに与えることとを含む、方法。 - 前記ユーザに関連するビジネスイベントデータは、ストリームに、またはストリームに関連するアーカイブされたリレーションに対応する、請求項12に記載の方法。
- 前記第1の結果は、ムービングウィンドウに基づいて収集される、請求項12に記載の方法。
- 前記ムービングウィンドウおよび前記時間間隔のうちの少なくとも一方は、ユーザによって決定される、請求項14に記載の方法。
- 前記トリガは、前記データオブジェクトに格納されている第1の結果の変化を示す、請求項12に記載の方法。
- 方法であって、
複合イベント処理エンジンを使用して、ユーザに関連するビジネスイベントデータに対する第1の連続クエリを実装することにより、ある時間間隔の間、第1の結果を収集することと、
前記ユーザに関連するビジネスイベントデータを含むイベントストリームに対する前記第1の連続クエリを処理することと、
前記第1の結果を、前記複合イベント処理エンジンのデータオブジェクトとしてメモリに格納することと、
トリガを受けたことに少なくとも一部基づいて、前記データオブジェクトの第1の結果を第2の連続クエリに与えることと、
前記複合イベント処理エンジンを使用して、前記第2の連続クエリを、前記データオブジェクトの第1の結果に少なくとも一部基づいて処理することにより、第2の結果を識別することと、
ユーザのユーザインターフェイスによる表示のために、前記第1の結果および前記第2の結果のうちの少なくとも一方の、可視化に対するマッピングを与えることと、
前記第2の連続クエリからの第2の結果に少なくとも一部基づいて、警告をユーザに与えることとを含む、方法。 - 前記第1の連続クエリは、ストリームからまたはアーカイブされたリレーションからデータを受けるように構成される、請求項17に記載の方法。
- 前記アーカイブされたリレーションは、前記ストリームに関連する、順序付けられておらず経時変化する一組のタプルである、請求項18に記載の方法。
- 前記マッピングは、前記第1の結果および前記第2の結果のうちの少なくとも一方の変化のリアルタイムの可視化を与えるように構成される、請求項17に記載の方法。
- 前記データオブジェクトは、「挿入」命令しか処理しないように構成される、請求項17に記載の方法。
- 1つ以上のプロセッサにより実行可能な複数の命令を格納するコンピュータ読取可能なプログラムであって、前記複数の命令は、
複合イベント処理エンジンを利用して、ユーザに関連するビジネスイベントデータに対する第1の連続クエリを初期化することにより、ある時間間隔の間、第1の結果を収集することを、前記1つ以上のプロセッサに行なわせる命令と、
前記ユーザに関連するビジネスイベントデータを含むイベントストリームに対する前記第1の連続クエリを処理することを、前記1つ以上のプロセッサに行なわせる命令と、
前記第1の結果を前記複合イベント処理エンジンのデータオブジェクトとしてメモリに格納することを、前記1つ以上のプロセッサに行なわせる命令と、
トリガを受けたことに少なくとも一部基づいて、前記データオブジェクトの第1の結果を第2の連続クエリに提示することを、前記1つ以上のプロセッサに行なわせる命令と、
前記複合イベント処理エンジンを利用して、前記第2の連続クエリを、前記データオブジェクトの第1の結果に少なくとも一部基づいて処理することにより、第2の結果を識別することを、前記1つ以上のプロセッサに行なわせる命令と、
前記第2の連続クエリからの第2の結果に少なくとも一部基づいて、警告をユーザに与えることを、前記1つ以上のプロセッサに行なわせる命令とを含む、コンピュータ読取可能なプログラム。 - 前記ユーザに関連するビジネスイベントデータは、ストリームに、またはストリームに関連するアーカイブされたリレーションに対応する、請求項22に記載のコンピュータ読取可能なプログラム。
- 前記第1の結果は、ムービングウィンドウに基づいて収集される、請求項22または23に記載のコンピュータ読取可能なプログラム。
- 前記ムービングウィンドウおよび前記時間間隔のうちの少なくとも一方は、ユーザによって決定される、請求項22に記載のコンピュータ読取可能なプログラム。
- 前記トリガは、前記データオブジェクトに格納されている第1の結果の変化を示す、請求項22〜25のいずれか一項に記載のコンピュータ読取可能なプログラム。
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