The Quest to solve the HL-LHC data access puzzle
HL-LHC will confront the WLCG community with enormous data storage, management and access challenges. These are as much technical as economical. In the WLCG-DOMA Access working group, members of the experiments and site managers have explored different models for data access and storage strategies t...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
EDP Sciences
2020-01-01
|
Series: | EPJ Web of Conferences |
Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2020/21/epjconf_chep2020_04027.pdf |
id |
doaj-e8c5ed8cd6584af2b11fb6d4bb275e73 |
---|---|
record_format |
Article |
spelling |
doaj-e8c5ed8cd6584af2b11fb6d4bb275e732021-08-02T16:20:46ZengEDP SciencesEPJ Web of Conferences2100-014X2020-01-012450402710.1051/epjconf/202024504027epjconf_chep2020_04027The Quest to solve the HL-LHC data access puzzleEspinal X.0Jezequel S.1Schulz M.2Sciabà A.3Vukotic I.4Wuerthwein F.5European Organisation for Nuclear Research (CERN)LAPP, Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS/IN2P3European Organisation for Nuclear Research (CERN)European Organisation for Nuclear Research (CERN)University of ChicagoUniversity of CaliforniaHL-LHC will confront the WLCG community with enormous data storage, management and access challenges. These are as much technical as economical. In the WLCG-DOMA Access working group, members of the experiments and site managers have explored different models for data access and storage strategies to reduce cost and complexity, taking into account the boundary conditions given by our community.Several of these scenarios have been evaluated quantitatively, such as the Data Lake model and incremental improvements of the current computing model with respect to resource needs, costs and operational complexity.To better understand these models in depth, analysis of traces of current data accesses and simulations of the impact of new concepts have been carried out. In parallel, evaluations of the required technologies took place. These were done in testbed and production environments at small and large scale.We will give an overview of the activities and results of the working group, describe the models and summarise the results of the technology evaluation focusing on the impact of storage consolidation in the form of Data Lakes, where the use of streaming caches has emerged as a successful approach to reduce the impact of latency and bandwidth limitation.We will describe the experience and evaluation of these approaches in different environments and usage scenarios. In addition we will present the results of the analysis and modelling efforts based on data access traces of the experiments.https://www.epj-conferences.org/articles/epjconf/pdf/2020/21/epjconf_chep2020_04027.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Espinal X. Jezequel S. Schulz M. Sciabà A. Vukotic I. Wuerthwein F. |
spellingShingle |
Espinal X. Jezequel S. Schulz M. Sciabà A. Vukotic I. Wuerthwein F. The Quest to solve the HL-LHC data access puzzle EPJ Web of Conferences |
author_facet |
Espinal X. Jezequel S. Schulz M. Sciabà A. Vukotic I. Wuerthwein F. |
author_sort |
Espinal X. |
title |
The Quest to solve the HL-LHC data access puzzle |
title_short |
The Quest to solve the HL-LHC data access puzzle |
title_full |
The Quest to solve the HL-LHC data access puzzle |
title_fullStr |
The Quest to solve the HL-LHC data access puzzle |
title_full_unstemmed |
The Quest to solve the HL-LHC data access puzzle |
title_sort |
quest to solve the hl-lhc data access puzzle |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2020-01-01 |
description |
HL-LHC will confront the WLCG community with enormous data storage, management and access challenges. These are as much technical as economical. In the WLCG-DOMA Access working group, members of the experiments and site managers have explored different models for data access and storage strategies to reduce cost and complexity, taking into account the boundary conditions given by our community.Several of these scenarios have been evaluated quantitatively, such as the Data Lake model and incremental improvements of the current computing model with respect to resource needs, costs and operational complexity.To better understand these models in depth, analysis of traces of current data accesses and simulations of the impact of new concepts have been carried out. In parallel, evaluations of the required technologies took place. These were done in testbed and production environments at small and large scale.We will give an overview of the activities and results of the working group, describe the models and summarise the results of the technology evaluation focusing on the impact of storage consolidation in the form of Data Lakes, where the use of streaming caches has emerged as a successful approach to reduce the impact of latency and bandwidth limitation.We will describe the experience and evaluation of these approaches in different environments and usage scenarios. In addition we will present the results of the analysis and modelling efforts based on data access traces of the experiments. |
url |
https://www.epj-conferences.org/articles/epjconf/pdf/2020/21/epjconf_chep2020_04027.pdf |
work_keys_str_mv |
AT espinalx thequesttosolvethehllhcdataaccesspuzzle AT jezequels thequesttosolvethehllhcdataaccesspuzzle AT schulzm thequesttosolvethehllhcdataaccesspuzzle AT sciabaa thequesttosolvethehllhcdataaccesspuzzle AT vukotici thequesttosolvethehllhcdataaccesspuzzle AT wuerthweinf thequesttosolvethehllhcdataaccesspuzzle AT espinalx questtosolvethehllhcdataaccesspuzzle AT jezequels questtosolvethehllhcdataaccesspuzzle AT schulzm questtosolvethehllhcdataaccesspuzzle AT sciabaa questtosolvethehllhcdataaccesspuzzle AT vukotici questtosolvethehllhcdataaccesspuzzle AT wuerthweinf questtosolvethehllhcdataaccesspuzzle |
_version_ |
1721229747447398400 |