NCU MFTVM 4: 運用事件驅動架構以及最佳化虛擬硬碟同步實作虛擬機器容錯

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研究生：	戴偉倫 Wei-Lun Dai
論文名稱：	NCU MFTVM 4: 運用事件驅動架構以及最佳化虛擬硬碟同步實作虛擬機器容錯 NCU MFTVM 4: Fault Tolerant VM with Event-Driven Architecture and virtual hard disk write replication
指導教授：	王尉任 Wei-Jen Wang
口試委員:
學位類別：	碩士 Master
系所名稱：	資訊電機學院 - 資訊工程學系 Department of Computer Science & Information Engineering
論文出版年：	2022
畢業學年度：	110
語文別：	中文
論文頁數：	45
中文關鍵詞：	QEMU-KVM 、虛擬機器、容錯系統、持續同步、硬碟同步
外文關鍵詞：	QEMU-KVM, Virtual Machine, Fault Tolerance, Continuous Checkpoint- ing, Block Replication
相關次數：	點閱：25 下載：0
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近年雲端服務的應用逐漸普及到企業內部,越來越多的企業開始將公司內部的服務轉移到
私有雲或是公有雲上面,而混和使用公有雲及私有雲是常見的雲端基礎建設需求,通常在私有
雲上面的服務,大多是重要且不能中斷的服務,只要發生重大故障導致服務不能運行,企業都
會蒙受重大的損失,故雲端平台的可用性 (Availability) 將會變得非常重要,不論是針對系統
設備的意外狀況處理,或是維護時的服務轉移,可用性相關的技術都能夠提供許多的幫助,讓
企業在面對大型基礎建設的災害時不會顯得措手不及。

本研究主要基於國立中央大學平行與分散計算實驗室所開發的 NCU MFTVM 容錯系統進
行後續的開發,該容錯系統亦屬於面相雲端服務高可用性的一種技術,而本研究則針對原先的
功能進行優化與改善,針對虛擬硬碟同步技術的代價進行優化,以及改善長久開發所累積的技
術債,針對系統架構進行部分改良,藉此降低後續開發人員進行開發的負擔。

In recent years, more and more enterprises migrate their services to Cloud platform. And
a hybrid Cloud platform is a popular option for enterprises to build their own infrastructure.
Basically, their will deploy their core services on private cloud but not public cloud. When
any services on a cloud are unavailable, the enterprise may lose a bundle before all services are
recovery. Therefore, the availability of cloud platform become more important when services
is used on business.

This research is based on the NCU MFTVM fault-tolerant system developed by the Paral-
lel and Distributed Computing Laboratory of National Central University. We develop a new
method to synchronize block with a lightweight mechanism which can reduce the time we need
to create a new checkpoint. And we also reengineer a part of our fault-tolerant system to improve
the readability and the maintainability.

摘要         ..................   i
Abstract    ..................  ii
圖目錄       ..................  iv
表目錄       ..................   v

一、 緒論    ..................   1
1 研究背景 ..................   1
2 研究動機 ..................   1
3 研究貢獻 ..................   2
4 論文架構 ..................   2

二、 利用事件導向架構進行系統設計 ..  3
1 問題定義 ..................   3
2 相關研究 ..................   3
2.1 控制反轉 (Inversion of Control) 3
2.2 依賴注入 (Dependency Injection) 4
2.3 事件導向 (Event Driven) ..  4
3 背景知識 ..................   5
3.1 QEMU overall Architecture  5
3.2 NCU MFTVM  .............   6
4 系統架構 ..................   8
4.1 事件導向架構流程 ..........   8
5 系統可維護性驗證.............  10
5.1 案例一:介面的使用 .........  11
5.2 案例二:事件迴圈 ...........  12

三、利用複寫進行虛擬硬碟備援方法 .... 15
1 問題定義 ...................  15
2 相關研究 ...................  15
2.1 COarse-grained LOck-stepping (COLO) 15
2.2 VMware vSphere ..........  16
3 背景知識 ...................  17
3.1 QEMU block 原生功能 ......  17
3.2 QEMU Block layer ........  18
3.3 NCU MFTVM block synchronization 19
4 系統架構 ...................  21
4.1 系統架構設計 ..............  21
4.2 關於軟體工程 ..............  23
5 系統效能評估 ................  23
5.1 實驗環境設定 ..............  23
5.2 實驗結果 .................  24

四、結論與未來方向 ...............  29
1 結論 .......................  29
2 未來方向 ....................  29

參考文獻 ........................  31
                                

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