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Balazs Konya

Researcher

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Data management services of NorduGrid

Author

  • A. Konstantinov
  • Paula Eerola
  • Balazs Konya
  • Oxana Smirnova
  • T. Ekelöf
  • M. Ellert
  • J. Renner Hansen
  • J. Langgard Nielsen
  • A. Wäänänen

Editor

  • A. Aimar
  • J. Harvey
  • N. Knoors

Summary, in English

In common grid installations, services responsible for storing big data

chunks, replication of those data and indexing their availability are usually

completely decoupled. And a task of synchronizing data is passed to either

user-level tools or separate services (like spiders) which are subject to

failure and usually cannot perform properly if one of underlying services

fails too.

The NorduGrid Smart Storage Element (SSE) was designed to try to

overcome those problems by combining the most desirable features into one

service. It uses HTTPS/G for secure data transfer, Web Services for

control (through same HTTPS/G channel) and can provide information to

indexing services used in middlewares based on the Globus Toolkit (TM). At

the moment, those are the Replica Catalog and the Replica Location

Service. The modular internal design of the SSE and the power of C++

object programming allows to add support for other indexing services in

an easy way.

There are plans to complement it with a Smart Indexing Service capable of

resolving inconsistencies hence creating a robust distributed data storage

system.

Department/s

  • Particle and nuclear physics

Publishing year

2005

Language

English

Pages

765-766

Publication/Series

CERN-2005-002

Volume

2

Document type

Conference paper

Publisher

CERN

Topic

  • Subatomic Physics

Keywords

  • NorduGrid Data management services

Conference name

Computing in High Energy CHEP'04

Conference date

2004-09-27

Conference place

Interlaken, Switzerland

Status

Published

Project

  • ATLAS