Providing persistence for sensor streams with light neighbor WAL

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

Sensor database systems need to provide both freshness of data and persistence to the incoming sensor streams. To provide persistence, a disk based logging method has been widely used, however it is not applicable for sensor streams because of its tardiness. In this paper, we propose the light neighbor write ahead logging protocol(L-WAL) for sensor streams. The L-WAL is a refinement of the neighbor-WAL (N-WAL). The L-WAL needs two network interfaces and applies a relaxed protocol rather than a two phase commit protocol. Since the relaxed protocol weakens the guarantee of logging successes, we have incorporated a repair system and checker system to enhance the guarantee. The result of experiments shows that the L-WAL is about 2.13 times faster than the N-WAL when the number of concurrent sensor streams is 250 and the L-WAL can enhance the persistence of data almost for free, while the N-WAL needs to pay high cost.

本文言語English
ホスト出版物のタイトルProceedings - 2002 Pacific Rim International Symposium on Dependable Computing, PRDC 2002
出版社IEEE Computer Society
ページ257-264
ページ数8
ISBN(電子版)0769518524
DOI
出版ステータスPublished - 2002 1 1
イベントPacific Rim International Symposium on Dependable Computing, PRDC 2002 - Tsukuba City, Ibaraki, Japan
継続期間: 2002 12 162002 12 18

出版物シリーズ

名前Proceedings of IEEE Pacific Rim International Symposium on Dependable Computing, PRDC
2002-January
ISSN(印刷版)1541-0110

Other

OtherPacific Rim International Symposium on Dependable Computing, PRDC 2002
CountryJapan
CityTsukuba City, Ibaraki
Period02/12/1602/12/18

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Computer Science Applications
  • Hardware and Architecture
  • Software

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