SlideShare una empresa de Scribd logo
1 de 1
Ambit lick Solutions
Mail Id: Ambitlick@gmail.com , Ambitlicksolutions@gmail.Com
6. Fault Tolerance in Distributed Systems Using Fused Data Structures
Replication is the prevalent solution to tolerate faults in large data structures
hosted on distributed servers. To tolerate f crash faults (dead/unresponsive data
structures) among n distinct data structures, replication requires f + 1 replicas of each
data structure, resulting in nf additional backups. We present a solution, referred to as
fusion that uses a combination of erasure codes and selective replication to
tolerate f crash faults using just f additional fused backups. We show that our solution
achieves O(n) savings in space over replication. Further, we present a solution to
tolerate f Byzantine faults (malicious data structures), that requires only nf + f backups as
compared to the 2nf backups required by replication. We explore the theory of fused
backups and provide a library of such backups for all the data structures in the Java
Collection Framework. The theoretical and experimental evaluation confirms that the
fused backups are space-efficient as compared to replication, while they cause very little
overhead for normal operation. To illustrate the practical usefulness of fusion, we use
fused backups for reliability in Amazon’s highly available key-value store, Dynamo.
While the current replication-based solution uses 300 backup structures, we present a
solution that only requires 120 backup structures. This results in savings in space as well
as other resources such as power.

Más contenido relacionado

Más de ambitlick

Mutual distance bounding protocols
Mutual distance bounding protocolsMutual distance bounding protocols
Mutual distance bounding protocols
ambitlick
 
Moderated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroupsModerated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroups
ambitlick
 
Efficient spread spectrum communication without pre shared secrets
Efficient spread spectrum communication without pre shared secretsEfficient spread spectrum communication without pre shared secrets
Efficient spread spectrum communication without pre shared secrets
ambitlick
 
Integrated institutional portal
Integrated institutional portalIntegrated institutional portal
Integrated institutional portal
ambitlick
 
Moderated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroupsModerated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroups
ambitlick
 

Más de ambitlick (20)

Mutual distance bounding protocols
Mutual distance bounding protocolsMutual distance bounding protocols
Mutual distance bounding protocols
 
Moderated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroupsModerated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroups
 
Efficient spread spectrum communication without pre shared secrets
Efficient spread spectrum communication without pre shared secretsEfficient spread spectrum communication without pre shared secrets
Efficient spread spectrum communication without pre shared secrets
 
IEEE -2012-13 Projects IN NS2
IEEE -2012-13 Projects IN NS2  IEEE -2012-13 Projects IN NS2
IEEE -2012-13 Projects IN NS2
 
Adaptive weight factor estimation from user review 1
Adaptive weight factor estimation from user   review 1Adaptive weight factor estimation from user   review 1
Adaptive weight factor estimation from user review 1
 
Integrated institutional portal
Integrated institutional portalIntegrated institutional portal
Integrated institutional portal
 
Embassy
EmbassyEmbassy
Embassy
 
Crm
Crm Crm
Crm
 
Mutual distance bounding protocols
Mutual distance bounding protocolsMutual distance bounding protocols
Mutual distance bounding protocols
 
Moderated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroupsModerated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroups
 
Efficient spread spectrum communication without pre shared secrets
Efficient spread spectrum communication without pre shared secretsEfficient spread spectrum communication without pre shared secrets
Efficient spread spectrum communication without pre shared secrets
 
Comments on “mabs multicast authentication based on batch signature”
Comments on “mabs multicast authentication based on batch signature”Comments on “mabs multicast authentication based on batch signature”
Comments on “mabs multicast authentication based on batch signature”
 
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...
 
Energy efficient protocol for deterministic
Energy efficient protocol for deterministicEnergy efficient protocol for deterministic
Energy efficient protocol for deterministic
 
Estimating Parameters of Multiple Heterogeneous Target Objects Using Composit...
Estimating Parameters of Multiple Heterogeneous Target Objects Using Composit...Estimating Parameters of Multiple Heterogeneous Target Objects Using Composit...
Estimating Parameters of Multiple Heterogeneous Target Objects Using Composit...
 
A Privacy-Preserving Location Monitoring System for Wireless Sensor Networks
A Privacy-Preserving Location Monitoring System for Wireless Sensor NetworksA Privacy-Preserving Location Monitoring System for Wireless Sensor Networks
A Privacy-Preserving Location Monitoring System for Wireless Sensor Networks
 
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...
 
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage in Sen...
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage in Sen...Energy-Efficient Protocol for Deterministic and Probabilistic Coverage in Sen...
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage in Sen...
 
On Multihop Distances in Wireless Sensor Networks with Random Node Locations
On Multihop Distances in Wireless Sensor Networks with Random Node LocationsOn Multihop Distances in Wireless Sensor Networks with Random Node Locations
On Multihop Distances in Wireless Sensor Networks with Random Node Locations
 
Accurate and Energy-Efficient Range-Free Localization for Mobile Sensor Networks
Accurate and Energy-Efficient Range-Free Localization for Mobile Sensor NetworksAccurate and Energy-Efficient Range-Free Localization for Mobile Sensor Networks
Accurate and Energy-Efficient Range-Free Localization for Mobile Sensor Networks
 

Último

Seal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptxSeal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptx
negromaestrong
 
The basics of sentences session 3pptx.pptx
The basics of sentences session 3pptx.pptxThe basics of sentences session 3pptx.pptx
The basics of sentences session 3pptx.pptx
heathfieldcps1
 
Beyond the EU: DORA and NIS 2 Directive's Global Impact
Beyond the EU: DORA and NIS 2 Directive's Global ImpactBeyond the EU: DORA and NIS 2 Directive's Global Impact
Beyond the EU: DORA and NIS 2 Directive's Global Impact
PECB
 
The basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptxThe basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptx
heathfieldcps1
 
1029-Danh muc Sach Giao Khoa khoi 6.pdf
1029-Danh muc Sach Giao Khoa khoi  6.pdf1029-Danh muc Sach Giao Khoa khoi  6.pdf
1029-Danh muc Sach Giao Khoa khoi 6.pdf
QucHHunhnh
 

Último (20)

Seal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptxSeal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptx
 
psychiatric nursing HISTORY COLLECTION .docx
psychiatric  nursing HISTORY  COLLECTION  .docxpsychiatric  nursing HISTORY  COLLECTION  .docx
psychiatric nursing HISTORY COLLECTION .docx
 
Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...
Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...
Ecological Succession. ( ECOSYSTEM, B. Pharmacy, 1st Year, Sem-II, Environmen...
 
The basics of sentences session 3pptx.pptx
The basics of sentences session 3pptx.pptxThe basics of sentences session 3pptx.pptx
The basics of sentences session 3pptx.pptx
 
Food Chain and Food Web (Ecosystem) EVS, B. Pharmacy 1st Year, Sem-II
Food Chain and Food Web (Ecosystem) EVS, B. Pharmacy 1st Year, Sem-IIFood Chain and Food Web (Ecosystem) EVS, B. Pharmacy 1st Year, Sem-II
Food Chain and Food Web (Ecosystem) EVS, B. Pharmacy 1st Year, Sem-II
 
TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...
TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...
TỔNG ÔN TẬP THI VÀO LỚP 10 MÔN TIẾNG ANH NĂM HỌC 2023 - 2024 CÓ ĐÁP ÁN (NGỮ Â...
 
Application orientated numerical on hev.ppt
Application orientated numerical on hev.pptApplication orientated numerical on hev.ppt
Application orientated numerical on hev.ppt
 
Unit-IV; Professional Sales Representative (PSR).pptx
Unit-IV; Professional Sales Representative (PSR).pptxUnit-IV; Professional Sales Representative (PSR).pptx
Unit-IV; Professional Sales Representative (PSR).pptx
 
How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17
 
ICT role in 21st century education and it's challenges.
ICT role in 21st century education and it's challenges.ICT role in 21st century education and it's challenges.
ICT role in 21st century education and it's challenges.
 
Asian American Pacific Islander Month DDSD 2024.pptx
Asian American Pacific Islander Month DDSD 2024.pptxAsian American Pacific Islander Month DDSD 2024.pptx
Asian American Pacific Islander Month DDSD 2024.pptx
 
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
 
Beyond the EU: DORA and NIS 2 Directive's Global Impact
Beyond the EU: DORA and NIS 2 Directive's Global ImpactBeyond the EU: DORA and NIS 2 Directive's Global Impact
Beyond the EU: DORA and NIS 2 Directive's Global Impact
 
Micro-Scholarship, What it is, How can it help me.pdf
Micro-Scholarship, What it is, How can it help me.pdfMicro-Scholarship, What it is, How can it help me.pdf
Micro-Scholarship, What it is, How can it help me.pdf
 
Python Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docxPython Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docx
 
This PowerPoint helps students to consider the concept of infinity.
This PowerPoint helps students to consider the concept of infinity.This PowerPoint helps students to consider the concept of infinity.
This PowerPoint helps students to consider the concept of infinity.
 
On National Teacher Day, meet the 2024-25 Kenan Fellows
On National Teacher Day, meet the 2024-25 Kenan FellowsOn National Teacher Day, meet the 2024-25 Kenan Fellows
On National Teacher Day, meet the 2024-25 Kenan Fellows
 
Unit-V; Pricing (Pharma Marketing Management).pptx
Unit-V; Pricing (Pharma Marketing Management).pptxUnit-V; Pricing (Pharma Marketing Management).pptx
Unit-V; Pricing (Pharma Marketing Management).pptx
 
The basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptxThe basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptx
 
1029-Danh muc Sach Giao Khoa khoi 6.pdf
1029-Danh muc Sach Giao Khoa khoi  6.pdf1029-Danh muc Sach Giao Khoa khoi  6.pdf
1029-Danh muc Sach Giao Khoa khoi 6.pdf
 

Fault tolerance in distributed systems using fused data structures

  • 1. Ambit lick Solutions Mail Id: Ambitlick@gmail.com , Ambitlicksolutions@gmail.Com 6. Fault Tolerance in Distributed Systems Using Fused Data Structures Replication is the prevalent solution to tolerate faults in large data structures hosted on distributed servers. To tolerate f crash faults (dead/unresponsive data structures) among n distinct data structures, replication requires f + 1 replicas of each data structure, resulting in nf additional backups. We present a solution, referred to as fusion that uses a combination of erasure codes and selective replication to tolerate f crash faults using just f additional fused backups. We show that our solution achieves O(n) savings in space over replication. Further, we present a solution to tolerate f Byzantine faults (malicious data structures), that requires only nf + f backups as compared to the 2nf backups required by replication. We explore the theory of fused backups and provide a library of such backups for all the data structures in the Java Collection Framework. The theoretical and experimental evaluation confirms that the fused backups are space-efficient as compared to replication, while they cause very little overhead for normal operation. To illustrate the practical usefulness of fusion, we use fused backups for reliability in Amazon’s highly available key-value store, Dynamo. While the current replication-based solution uses 300 backup structures, we present a solution that only requires 120 backup structures. This results in savings in space as well as other resources such as power.