NDLI: From Crash Consistency to Transactions

Content Provider	ACM Digital Library
Author	Kwon, Youngjin Chidambaram, Vijay Hu, Yige Witchel, Emmett
Abstract	Modern applications use multiple storage abstractions such as the file system, key-value stores, and embedded databases such as SQLite. Maintaining consistency of data spread across multiple abstractions is complex and error-prone. Applications are forced to copy data unnecessarily and use long sequences of system calls to update state in a consistent manner. Not only does this create implementation complexity, it also introduces potential performance problems from redundant IO and fsync() calls, which fragment disk writes into small, random IOs. In this paper, we propose that the operating system should provide transactions across multiple storage abstractions; we can build such transactions with low development cost by taking advantage of a well-tested piece of software: the file-system journal. We present the design of our cross-abstraction transactions and some preliminary results, showing such transactions can increase performance by 31% in certain cases.
Starting Page	100
Ending Page	105
Page Count	6
File Format	PDF
ISBN	9781450350686
DOI	10.1145/3102980.3102997
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2017-05-07
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

From Crash Consistency to Transactions